UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K
(Mark One)
   
þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 20062007
OR
   
o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES AND EXCHANGE ACT OF 1934
For the transition period from                    to                    
Commission file number
001-9106 (Brandywine Realty Trust)
000-24407 (Brandywine Operating Partnership, L.P.)
Brandywine Realty Trust
Brandywine Operating Partnership, L.P.
(Exact name of registrant as specified in its charter)
   
MARYLAND(Brandywine Realty Trust) 23-2413352
DELAWARE(Brandywine Operating Partnership L.P.) 23-2862640
   
(State or other jurisdiction of (I.R.S. Employer Identification No.)
Incorporation or organization)  
   
555 East Lancaster Avenue  
Radnor, Pennsylvania 19087
   
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code      (610) 325-5600
Registrant’s telephone number, including area code(610) 325-5600Securities registered pursuant to Section 12(b) of the Act:
   
  Name of each exchange
Title of each class on which registered
   
Common Shares of Beneficial Interest, New York Stock Exchange
par value $0.01 per share  
(Brandywine Realty Trust) New York Stock Exchange
   
7.50% Series C Cumulative Redeemable New York Stock Exchange
Preferred Shares of Beneficial Interest New York Stock Exchange
par value $0.01 per share  
(Brandywine Realty Trust)  
   
7.375% Series D Cumulative Redeemable New York Stock Exchange
Preferred Shares of Beneficial Interest New York Stock Exchange
par value $0.01 per share  
(Brandywine Realty Trust)  
Securities registered pursuant to Section 12(g) of the Act:
Units of General Partnership Interest (Brandywine Operating Partnership, L.P.)
 
(Title of class)
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
 
Brandywine Realty Trust Yesþ      Noo
Brandywine Operating Partnership, L.P. Yesþ      Noo
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.
 
Brandywine Realty Trust Yeso      Noþ
Brandywine Operating Partnership, L.P. Yeso      Noþ
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
 
Brandywine Realty Trust Yesþ      Noo
Brandywine Operating Partnership, L.P. Yesþ      Noo
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a non-accelerated filer.smaller reporting company. See definitionthe definitions of “large accelerated filer,” “accelerated filerfiler” and large accelerated filer”“smaller reporting company” in Rule 12b-2 of the Exchange Act (Check one):
Brandywine Realty TrustLarge accelerated filerþ Accelerated filero Non-accelerated filero
Brandywine Operating Partnership, L.P.Large accelerated filero Accelerated filerþ Non-accelerated filero
Brandywine Realty Trust:
Large accelerated filerþ      Accelerated filero      Non-accelerated filero      Smaller reporting companyo
(Do not check if a smaller reporting company)
Brandywine Operating Partnership, L.P.:
Large accelerated filero      Accelerated filerþ      Non-accelerated filero      Smaller reporting companyo
(Do not check if a smaller reporting company)
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
 
Brandywine Realty Trust Yeso      Noþ
Brandywine Operating Partnership, L.P. Yeso      Noþ
The aggregate market value of the Common Shares of Beneficial Interest held by non-affiliates of Brandywine Realty Trust as of the last day of the registrant’s most recently completed second fiscal quarter was $2.9$2.5 billion. The aggregate market value has been computed by reference to the closing price of the Common Shares of Beneficial Interest on the New York Stock Exchange on such date. An aggregate of 88,599,96387,054,956 Common Shares of Beneficial Interest were outstanding as of February 22, 2007.2008.
As of June 30, 2006,2007, the aggregate market value of the 2,309,0512,143,021 common units of limited partnership (“Units”) held by non-affiliates of Brandywine Operating Partnership, L.P. was $74.3$61,247,543 million based upon the last reportreported sale price of $32.17$28.58 per share on the New York Stock Exchange on June 30, 200629, 2007 of the Common Shares of Beneficial Interest of Brandywine Realty Trust, the sole general partner of Brandywine Operating Partnership, L.P. (For this computation, the Registrant has excluded the market value of all Units beneficially owned by Brandywine Realty Trust.)
Documents Incorporated By Reference
Portions of the proxy statement for the 2008 Annual Meeting of Shareholders of Brandywine Realty Trust to be held on May 9, 2007 are incorporated by reference into Part III of this Form 10-K.
The exhibit index as required by Item 601(a) of Regulation S-K is included in Item 15 of Part IV of this report.
 
 

 


 

TABLE OF CONTENTS
FORM 10-K
     
  Page
    
 
  5
6 
  13
14 
 22
24 
  22
24 
  35
 
  35 
 
    
 
  35 
  39
 
  41 
  60
61 
  60
61 
  60
61 
  60
61 
  6162 
 
    
 
  61
62 
  61
62 
  62 
  62
 
  62 
 
    
 
  62 
  69 
List of Partners
 Statement re Computation of Ratios of Brandywine Realty Trust
 Statement re Computation of Ratios of Brandywine Operating Partnership, L.P.
 List of Subsidiaries
 Consent of Independent Registered Public Accounting FirmPricewatehouseCoopers LLP, Brandywine Realty Trust
 Consent of Independent Registered Public Accounting FirmPricewaterhouseCoopers LLP Brandywine Operating Partnership
 Certification Pursuant to Rules 13a-14(a) and 15d-14(a)Certifications of the Chief Executive Officer
 Certification Pursuant to Rules 13a-14(a) and 15d-14(a)Certifications of the Chief Financial Officer
 Certification Pursuant to Rules 13a-14(a) and 15d-14(a)Certifications of the Chief Executive Officer
 Certification Pursuant to Rules 13a-14(a) and 15d-14(a)Certifications of the Chief Financial Officer
 Certifications of the Chief Executive Officer required under Rule 13(a)-14(b) Certification13a-14(b)
 Certifications of the Chief Financial Officer under Rule 13(a)-14(b) Certification13a-14(b)
 Certifications of the Chief Executive Officer required by Rule 13(a)-14(b) Certification13a-14(b)
 Certifications of the Chief Financial Officer under Rule 13(a)-14(b) Certification13a-14(b)

-2--3-


Filing Format
This combined Form 10-K is being filed separately by Brandywine Realty Trust and Brandywine Operating Partnership, L.P.
Forward-Looking Statements
The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. This Annual Report on Form 10-K and other materials filed by us with the SEC (as well as information included in oral or other written statements made by us) contain statements that are forward-looking, including statements relating to business and real estate development activities, acquisitions, dispositions, future capital expenditures, financing sources, governmental regulation (including environmental regulation) and competition. We intend such forward-looking statements to be covered by the safe-harbor provisions of the 1995 Act. The words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “will,” “should” and similar expressions, as they relate to us, are intended to identify forward-looking statements. Although we believe that the expectations reflected in such forward-looking statements are based on reasonable assumptions, we can give no assurance that our expectations will be achieved. As forward-looking statements, these statements involve important risks, uncertainties and other factors that could cause actual results to differ materially from the expected results and, accordingly, such results may differ from those expressed in any forward-looking statements made by us or on our behalf. Factors that could cause actual results to differ materially from our expectations include, but are not limited to:
  changes in general economic conditions;
 
  changes in local real estate conditions (including changes in rental rates and the number of properties that compete with our properties);
 
  changes in the economic conditions affecting industries in which our principal tenants compete;
 
  our failure to lease unoccupied space in accordance with our projections;
 
  our failure to re-lease occupied space upon expiration of leases;
 
  the bankruptcy of major tenants;
 
  changes in prevailing interest rates;
 
  the unavailability of equity and debt financing;
 
  failure of acquisitions to perform as expected;
 
  unanticipated costs associated with, and integration of, our acquisitions;
 
  unanticipated costs to complete and lease-up pending developments;
 
  impairment charges;
 
  increased costs for, or lack of availability of, adequate insurance, including for terrorist acts;
 
  demand for tenant services beyond those traditionally provided by landlords;
 
  potential liability under environmental or other laws;
 
  earthquakes and other natural disasters;
 
  complex regulations relating to our status as a REIT and to our acquisition, disposition and development activities;

-3--4-


inability to complete acquisitions that may be necessary to complete 1031 transactions or provide required tax protection under existing agreements;
  the adverse consequences of our failure to qualify as a REIT; and
 
  the impact of newly adopted accounting principles on our accounting policies and on period-to-period comparisons of financial results.
Given these uncertainties, and the other risks identified in the “Risk Factors” section and elsewhere in this Annual Report on Form 10-K, we caution readers not to place undue reliance on forward-looking statements. We assume no obligation to update or supplement forward-looking statements that become untrue because of subsequent events.

-4--5-


PART I
Item 1. Business
Introduction
The terms “we,” “us,” “our” or the “Company” refer to Brandywine Realty Trust, a Maryland real estate investment trust, individually or together with its consolidated subsidiaries, including Brandywine Operating Partnership, L.P. (the “Operating Partnership”), a Delaware limited partnership.
We are a self-administered and self-managed real estate investment trust, or REIT, active in acquiring, developing, redeveloping, leasing and managing office and industrial properties. As of December 31, 2006,2007, we owned 261216 office properties, 23 industrial facilities and one mixed-use property (which we refer to collectively as the “Properties”) containing an aggregate of approximately 28.224.9 million net rentable square feet. We also have sixseven properties under development threeand seven properties under redevelopment and four lease-up properties containing an aggregate of 2.13.7 million net rentable square feet. As of December 31, 2006,2007, we consolidated three office properties owned by real estate ventures containing 0.4 million net rentable square feet. Therefore, as of December 31, 2007 we own and consolidated 257 properties with an aggregate of 29.0 million net rentable square feet. As of December 31, 2007, we owned economic interests in 1114 unconsolidated real estate ventures that contain approximately 2.74.4 million net rentable square feet and in four consolidated real estate ventures that own 15 office properties containing approximately 1.5 million net rentable square feet (which we refer to collectively as(collectively, the “Real Estate Ventures”). In addition, as of December 31, 2006,2007, we owned approximately 490417 acres of undeveloped land. The Properties and the properties owned by the Real Estate Ventures are located in and surroundingor nearby Philadelphia, PA, Wilmington, DE, Southern and Central New Jersey, Richmond, VA, Metropolitan Washington, D.C., Dallas/Fort Worth, Austin, TX and Oakland and San Diego, and Los Angeles.CA. In addition to managing properties that we own and consolidated, as of December 31, 2006,2007, we were managing approximately 13.014.5 million square feet of office and industrial properties for third parties and Real Estate Ventures. Unless otherwise indicated, all references to square feet represent net rentable area.
Organization
Brandywine Realty Trust was organized and commenced its operations in 1986 as a Maryland REIT. Brandywine Realty Trust owns its assets and conducts its operations through the Operating Partnership and subsidiaries of the Operating Partnership. Brandywine Realty Trust controls the Operating Partnership as its sole general partner and as of December 31, 20062007 owned a 95.7%95.8% interest in the Operating Partnership. The holders of the remaining interests in the Operating Partnership, consisting of Class A units of limited partnership interest, have the right to require redemption of their units at any time. At our option, we may satisfy the redemption either for an amount, per unit, of cash equal to the then market price of one Brandywine common share (based on the prior ten-day trading average) or for one Brandywine common share. Our structure as an “UPREIT” is designed, in part, to permit persons contributing properties to us to defer some or all of the tax liability they might otherwise incur in a sale of properties.
Our executive offices are located at 555 East Lancaster Avenue, Radnor, Pennsylvania 19087 and our telephone number is (610) 325-5600. We have regional offices in Mount Laurel, New Jersey; Philadelphia, Pennsylvania; Richmond, Virginia; Falls Church, Virginia; Austin, Texas; Dallas, Texas; Oakland, California; and Carlsbad, California. We have an internet website at www.brandywinerealty.com. We are not incorporating by reference into this Annual Report on Form 10-K any material from our website. The reference to our website is an inactive textual reference to the uniform resource locator (URL) and is for your reference only.
Acquisition of Prentiss Properties Trust in January 2006
On January 5, 2006, we acquired Prentiss Properties Trust (“Prentiss”) under an agreement and plan of merger that we entered into with Prentiss on October 3, 2005. In conjunction with our acquisition of Prentiss, designees of The Prudential Insurance Company of America (“Prudential”) acquired Prentiss properties that contain an aggregate of approximately 4.32 million net rentable square feet for total consideration of approximately $747.7 million. Through our acquisition of Prentiss (and after giving effect to the Prudential acquisition of Prentiss properties), we acquired a portfolio of 79 office properties (including 13 properties that are owned by consolidated Real Estate Ventures and seven properties that are owned by unconsolidated Real Estate Ventures) that contain an aggregate of 14.0 million net rentable square feet. In addition, through our acquisition of Prentiss we entered into new geographic markets, primarily Southern and Northern California, Dallas/Fort Worth and Austin, Texas and

-5-


Metropolitan Washington, D.C. and decreased our relative concentration in Philadelphia and the Mid-Atlantic region.
In our acquisition of Prentiss, each then outstanding Prentiss common share was converted into the right to receive 0.69 of a Brandywine common share and $21.50 in cash (the “Per Share Merger Consideration”) except that 497,884 Prentiss common shares held in the Prentiss deferred compensation plan converted solely into 720,737 Brandywine common shares. In addition, each then outstanding unit (each, a “Prentiss OP Unit”) of limited partnership interest in Prentiss’s operating partnership subsidiary was, at the option of the holder, converted into Prentiss Common Shares with the right to receive the Per Share Merger Consideration or 1.3799 Class A units of our Operating Partnership. Accordingly, based on 49,375,723 Prentiss common shares outstanding at closing of the acquisition, we issued 34,446,446 Brandywine common shares and paid an aggregate of approximately $1.05 billion in cash for the accounts of the former Prentiss shareholders. Based on 1,572,612 Prentiss OP Units outstanding at closing of the acquisition, we issued 2,170,047 Class A units. In addition, options issued by Prentiss that were exercisable for an aggregate of 342,662 Prentiss common shares were converted into options exercisable for an aggregate of 496,037 Brandywine common shares at a weighted average exercise price of $22.00 per share. Through our acquisition of Prentiss we also assumed approximately $647.3 million in aggregate principal amount of Prentiss debt.
We funded the approximately $1.05 billion cash portion of the merger consideration, related transaction costs and prepayments of approximately $543.3 million in Prentiss mortgage debt at the closing of the acquisition through (i) a $750 million unsecured term loan that we repaid in full on March 28, 2006; (ii) approximately $676.5 million of cash received from Prudential’s acquisition of the Prentiss properties; and (iii) approximately $195.0 million through borrowing under our revolving credit facility.
20062007 Transactions
Real Estate Acquisitions/Dispositions
In addition to our January 2006 acquisition of properties through our merger with Prentiss, and the concurrent disposition of properties to Prudential, in 20062007, we acquired fiveseven office properties that contain an aggregate of 839,704containing 1.6 million net rentable square feet and 93.4 acresa 4.9 acre parcel of land and we sold 23a 90 year ground lease interest in a 2.54 acre parcel of land. We also acquired the 49% minority interest in one of our previously consolidated real estate ventures that owned 10 office properties that containcontaining an aggregate of 3,364,2151.1 million net rentable square feet. We sold 49 properties containing an aggregate of 5.2 million net rentable square feet and 76.7eight land parcels containing an aggregate 56.2 acres, of land, as indicated below:
§In January 2006, we sold 850/950 Warrenville Road, two properties totaling 99,470 square feet in Chicago, Illinois for a sales price of $15.3 million.
§In February 2006, we acquired 100 Lenox Drive, a property totaling 92,980 square feet in Lawrenceville, New Jersey for a purchase price of $10.2 million.
§In February 2006, we sold 550/650 Warrenville Road, 1050 Warrenville Road, 701 Warrenville Road and 801 Cherry Street, five properties totaling 1,316,744 square feet in Chicago, Illinois and Fort Worth, Texas for an aggregate sales price of $207.3 million.
§In March 2006, we sold 8755 W. Higgins Road, a property totaling 237,320 square feet in Chicago, Illinois for a sales price of $30.0 million.
§In April 2006, we acquired One Paragon, a property totaling 145,127 square feet in Richmond, Virginia for a purchase price of $24.0 million. We also acquired a 47.9 acre land parcel in Mt. Laurel, New Jersey and a 5.5 acre land parcel in Newtown (Delaware County), Pennsylvania for a total purchase price of $8.6 million.
§In April 2006, we sold 1.3 acres of land in Radnor, Pennsylvania for a sales price of $4.5 million.
§In June 2006, we acquired a 23.2 acre land parcel in Goochland County, Virginia for a purchase price of $4.6 million.
§In June 2006, we sold 505 Millenium Drive, a property totaling 98,586 square feet in Allen, Texas and 5.5 acres of land in Westampton, New Jersey for a an aggregate sales price of $6.4 million.

-6-


 § On December 19, 2007, the Company formed G&I Interchange Office LLC, a new joint venture (the “Venture”) with G&I VI Investment Interchange Office LLC (“G&I VI”), an investment vehicle advised by DRA Advisors LLC. The Venture included interests in 29 office properties which were located in various counties in Pennsylvania, containing an aggregate of 1,616,227 net rentable square feet. The Company transferred or contributed 100% interests in 26 properties and transferred to the Venture an 89% interest in three of the properties with the remaining 11% interest in the three properties subject to a put/call at fixed prices after three years. In July 2006,connection with the formation, the Company effectively transferred an 80% interest in the venture to G&I IV for cash and the venture borrowed approximately $184.0 million in third party financing the aggregate proceeds of which were distributed to the Company. The Company used the net proceeds of approximately $230.9 million that it received in this transaction to reduce outstanding indebtedness under our unsecured revolving credit facility. The Company was hired by the Venture to perform property management and leasing services.
On November 30, 2007, we sold 110 Summit111/113 Pencader Drive, aan office property totaling 43,660located in Newark, Delaware containing 52,665 net rentable square feet, in Exton, Pennsylvania for a sales price of $3.7$5.1 million.
 
 § In August 2006,On November 15, 2007, we acquired 2340 Dulles Cornersold 2490 Boulevard aof the Generals, an office property totaling 264,405located in West Norriton, Pennsylvania containing 20,600 net rentable square feet, in Herndon, Virginia, for a purchasesales price of $79.0 million and 2355 Dulles Corner Boulevard, a property totaling 179,176 square feet in Herndon, Virginia for a purchase price of $55.0$1.5 million.
 
 § In August 2006,On September 7, 2007, we sold 8144 Walnut Hill Lane, property totaling 464,470 square feetseven land parcels located in Dallas, Texas, 111 Presidential Boulevard, a property totaling 172,894 square feetthe Iron Run Business Park in Bala Cynwyd,Lehigh County, Pennsylvania 220 Cabot Drive, a property totaling 124,327 square feet in Lisle, Texas and 10.9containing an aggregate 51.5 acres of land, in Sacramento, California for an aggregate sales price of $127.6$6.6 million.
 
 § In October 2006,On July 19, 2007, we acquired the United States Post Office building, an office property located in Philadelphia, Pennsylvania containing 862,692 net rentable square feet, for an aggregate purchase price of $28.0 million. We intend to redevelop the building into office space for lease to the Internal Revenue Service (“IRS”). As part of the acquisition, we also acquired a 16.890 year ground lease interest in an adjacent parcel of ground of approximately 2.54 acres, commonly referred to as the “postal annex”. We are currently demolishing the existing structure located on the postal annex and intend to rebuild a parking facility containing approximately 733,000 square feet that will be used primarily by the IRS employees upon their move into the planned space at the Post Office building. The remaining postal annex ground leased parcels can accommodate additional office, retail, hotel and residential development and we are currently in the planning stage with respect to these parcels.
On July 19, 2007, we acquired five office properties containing 508,607 net rentable square feet and a 4.9 acre land parcel in Austin, Texasthe Boulders office park in Richmond, Virginia for aan aggregate purchase price of $2.5$96.3 million. We funded a portion of the purchase price using the remaining proceeds from the sale of the 10 office properties located in Reading and Harrisburg, Pennsylvania in March 2007.
On May 10, 2007, we acquired Lake Merritt Tower, an office property located in Oakland, California containing 204,278 net rentable square feet for an aggregate contracted purchase price of $72.0 million. A portion of the proceeds from the sale of 10 office properties located in Reading and Harrisburg, Pennsylvania in March 2007 was used to fully fund this purchase.
On April 30, 2007, we sold Cityplace Center, an office property located in Dallas, Texas containing 1,295,832 net rentable square feet, for a sales price of $115.0 million.
 
 § In November 2006,On March 30, 2007, we sold King & Harvard Drive10 office properties located in Reading and One South Union Avenue, two properties totaling 167,017Harrisburg, Pennsylvania containing 940,486 net rentable square feet, in Cherry Hill, New Jersey and 1255 Corporate Drive, a property totaling 150,019 square feet in Irving, Texas for an aggregate sales price of $37.8$112.0 million. We structured this transaction to qualify as a like-kind exchange under Section 1031 of the Internal Revenue Code and the cash from the sale was held by a qualified intermediary for purposes of accomplishing the like-kind exchange as noted in the above transactions.
On March 30, 2007, we sold 1007 Laurel Oak, an office property located in Voorhees, New Jersey containing 78,205 net rentable square feet, for a sales price of $7.0 million.

-7-


On March 1, 2007, we acquired the 49% minority interest in one of our previously consolidated real estate ventures that owned 10 office properties containing an aggregate of 1.1 million net rentable square feet for a purchase price of $63.7 million.
 
 § In November 2006,On January 31, 2007, we acquired 2251 Corporate Park Drive, asold George Kachel Farmhouse, an office property totaling 158,016located in Reading, Pennsylvania containing 1,664 net rentable square feet, in Herndon, Virginia for a purchasesales price of $59.0$0.2 million.
 
 § In December 2006,On January 19, 2007, we sold 2110 Walnut Hill Lane, threefour office properties totaling 164,782located in Dallas, Texas containing 1,091,186 net rentable square feet in Irving, Texas, 105/140 Terry Drive, two properties totaling 128,666 square feet in Newtown, Pennsylvania and 3890/3860 West Northwest Highway, two properties totaling 196,260 square feet in Dallas, Texasa 4.7 acre land parcel, for an aggregate sales price of $45.0$107.1 million. We also
On January 18, 2007, we sold 59.0 acres of landNorriton Office Center, an office property located in Newtown,East Norriton, Pennsylvania containing 73,394 net rentable square feet, for a sales price of $19.0$7.8 million.
Developments
In 20062007 we placed in service twosix office properties that we developed or redeveloped and that contain an aggregate of 782,5951,048,409 net rentable square feet. We place a property in servicesservice at the earlier of (i) the date at which we estimate the property to be 95% occupied and (ii) one year from the project completion date. At December 31, 20062007, we had nine14 properties under development or redevelopment that contain an aggregate of 1.43.7 million net rentable square feet at an estimated total development cost of $304.3$718.3 million. We expect to place these projects in service at dates between between the secondthird quarter of 20072008 and the fourththird quarter of 2008.2010.
Unsecured Debt Financings
On March 28, 2006,October 15, 2007, we completedentered into a term loan agreement that provides for an underwrittenunsecured term loan in the amount of $150.0 million. We used the proceeds of this loan to pay down a portion of the outstanding amount on our revolving credit facility. The term loan matures on October 18, 2010 and may be extended at our option for two one-year periods but not beyond the maturity date of our revolving credit facility.
On June 29, 2007, we amended our $600.0 million unsecured revolving credit facility (the “Credit Facility”). The amendment extended the maturity date of the Credit Facility from December 22, 2009 to June 29, 2011 (subject to an extension of one year, at our option, upon our payment of an extension fee equal to 15 basis points of the committed amount under the Credit Facility). The amendment also reduced the per annum variable interest rate on outstanding balances from Eurodollar plus 0.80% to Eurodollar plus 0.725% per annum. In addition, the amendment reduced the quarterly facility fee from 20 basis points to 17.5 basis points per annum. The interest rate and facility fee are subject to adjustment upon a change in our unsecured debt ratings. The amendment also lowered to 7.50% from 8.50% the capitalization rate used in the calculation of several of the financial covenants; increased our swing loan availability from $50.0 million to $60.0 million; and increased the number of competitive bid loan requests available to us from two to four in any 30 day period. Borrowings are always available to the extent of borrowing capacity at the stated rates, however, the competitive bid feature allows banks that are part of the lender consortium under the Credit Facility to bid to make loans to us at a reduced Eurodollar rate. We have the option to increase the Credit Facility to $800.0 million subject to the absence of any defaults and our ability to acquire additional commitments from our existing lenders or new lenders.
On April 30, 2007, we consummated the public offering of (1) $300,000,000$300 million aggregate principal amount of floating rate guaranteed notesunsecured 5.70% Guaranteed Notes due 2009, (2) $300,000,000 aggregate principal amount of 5.75% guaranteed notes due 20122017 and (3) $250,000,000 aggregate principal amount of 6.00% guaranteed notes due 2016. We used the net proceeds from these notes to repay a term loan that we obtained to finance a portion of the consideration that we paid in the Prentiss merger andthis offering to reduce borrowings under the Credit Facility.
In April 2007, we entered into a $20.0 million Sweep Agreement to be used for cash management purposes. Borrowings under the Sweep Agreement bear interest at one-month LIBOR plus 0.75%.
On November 29, 2006, we called for redemption of our revolving credit facility.$300 million Floating Rate Guaranteed Notes due 2009 and repaid these notes on January 2, 2007 in accordance with the November call using proceeds from our Credit Facility. As a result of the early repayment of these notes, we incurred accelerated amortization of $1.4 million in associated deferred financing costs in the fourth quarter 2006.
On October 4, 2006, we completed an offering of $300.0sold $300 million aggregate principal amount of unsecured 3.875% senior convertible notesExchangeable Guaranteed Notes due 2026 in an offering made in reliance upon an exemption from registration rights under Rule 144A under the Securities Act of 1933 and issuedsold an additional $45 million of exchangeable notes3.875% Exchangeable Guaranteed Notes due 2026 on October 16, 2006 to cover over-allotments. We have registered the resale of the exchangeable notes. At certain

-8-


times and upon the occurrence of certain events, the notes are exchangable intoexchangeable for cash up to their principal amount and, with respect to the remainder, if any, of the exchange value in excess of such principal amount, cash or shares of the Company’sour common shares. The initial exchange rate is 25.4065 shares per $1,000 principal amount of notes (which is equivalent to an initial conversionexchange price of $39.36 per share). The notesWe may not be redeemed by usredeem the notes prior to October 20, 2011 (except to preserve the Company’sour status as a REIT)REIT for U.S. federal income tax purposes), but are redeemable anytimewe may redeem the notes at any time thereafter, in whole or in part, at a redemption price equal to the principal amount of the notes to be redeemed plus any accrued and unpaid interest (including additional interest), if any.interest. In addition, on October 20, 2011, October 15, 2016 and October 15, 2021 oras well as upon the occurrence of certain change in control transactions prior to October 20, 2011, note holders of notes may require us to repurchase all or a portion of the notes at a purchase price equal to the principal amount of the notes to be purchased plus any accrued and unpaid interest on the notes. Net

-7-


interest. We used net proceeds from the October 2006 note offering were usednotes to repurchase approximately $60.0 million of common shares at an averagea price of $32.80 per share and for general corporate purposes, including the repayment of outstanding borrowings under the Credit Facility.
On March 28, 2006, we consummated the public offering of $850 million of unsecured notes, consisting of (1) $300 million aggregate principal amount of Floating Rate Guaranteed Notes due 2009, (2) $300 million aggregate principal amount of 5.75% Guaranteed Notes due 2012 and (3) $250 million aggregate principal amount of 6.00% Guaranteed Notes due 2016. We used the net proceeds from this offering to repay a $750 million unsecured term loan and to reduce borrowings under the Credit Facility.
The Operating Partnership is the issuer of our unsecured revolving credit facility.notes, and Brandywine Realty Trust has fully and unconditionally guaranteed the payment of principal and interest on the notes.
Business Objective and Strategies for Growth
Our business objective is to deploy capital effectively to maximize our return on investment and thereby maximize our total return to shareholders. To accomplish this objective we seek to:
  maximize cash flow through leasing strategies designed to capture rental growth as rental rates increase and as below-market leases are renewed;
 
  attain a high tenant retention rate by providing a full array of property management and maintenance services and tenant service programs responsive to the varying needs of our diverse tenant base;
 
  increase the economic diversification of our tenant base while maximizing economies of scale;
 
  as warranted by market conditions, deploy our land inventory and seek new land parcels on which to develop high-quality office and industrial properties to service our tenant base;
 
  capitalize on our redevelopment expertise to selectively acquire, redevelop and reposition properties in desirable locations;
 
  acquire high-quality office and industrial properties and portfolios of such properties at attractive yields in markets that we expect will experience economic growth;
 
  form joint venture opportunities with high-quality partners having attractive real estate holdings or significant financial resources; and
 
  utilize our reputation as a full-service real estate development and management organization to identify opportunities that will expand our business and create long-term value.
We expect to concentrate our real estate activities in markets where we believe that:
  current and projected market rents and absorption statistics justify construction activity;
 
  we can maximize market penetration by accumulating a critical mass of properties and thereby enhance operating efficiencies;
barriers to entry (such as zoning restrictions, utility availability, infrastructure limitations, development moratoriums and limited developable land) will create supply constraints on office and industrial space; and
there is potential for economic growth, particularly job growth and industry diversification.

-8--9-


barriers to entry (such as zoning restrictions, utility availability, infrastructure limitations, development moratoriums and limited developable land) will create supply constraints on office and industrial space; and
there is potential for economic growth, particularly job growth and industry diversification.
Operating Strategy
We believe that we are well positioned in our current markets and have the expertise to take advantage of both development and acquisition opportunities in new markets that have healthy long-term fundamentals and strong growth projections. This capability, combined with what we believe is a conservative financial structure, allows us to concentrate our growth efforts towards selective development alternatives and acquisition opportunities. These abilities are integral to our strategy of having a geographically and physically diverse portfolio of assets, which will meet the needs of our tenants. Through our merger with Prentiss and our 2006 development and disposition activities, we commenced operations in Southern and Northern California, Austin and Dallas, TX and Metropolitan Washington D.C. metropolitan region and have decreased our relative concentrations in Philadelphia and the Mid-Atlantic region. We have also expanded our overall development pipeline and are pursuing acquisitions of sites on which we can capitalize on our own development and market expertise.
We expect that selective development of new office properties will continue to be important to the growth of our portfolio over the next several years. We use experienced on site construction superintendents, operating under the supervision of project managers and senior management, to control the construction process and mitigate the various risks associated with real estate development. We believe we understand and effectively manage the risks associated with development and construction, and these risks are justified by higher potential yields.
We expect to continue to operate in markets where we have a concentration advantage due to economies of scale. We believe that where possible, it is best to operate with a strong base of properties in order to benefit from the personnel allocation and the market strength associated with managing several properties in the same market. However, we intend to selectively dispose of properties and redeploy capital if we determine a property cannot meet long term earnings growth expectations. We believe that recycling capital is an important aspect of maintaining the overall quality of our portfolio.
Policies With Respect To Certain Activities
The following is a discussion of our investment, financing and other policies. These policies have been determined by our Board of Trustees and our Board may revise these policies without a vote of shareholders.
Investments in Real Estate or Interests in Real Estate
We may develop, purchase or lease income-producing properties for long-term investment, expand and improve the properties presently owned or other properties purchased, or sell such properties, in whole or in part, as circumstances warrant. Although there is no limitation on the types of development activities that we may undertake, we expect that our development activities will meet current market demand and will generally be on a build-to-suit basis for particular tenants, or where a significant portion of the building is pre-leased before construction begins.begins, or where we believe that market demand is strong enough to commence speculative developments. We may alsocontinue to participate with other entities in property ownership through joint ventures or other types of co-ownership. Our equity investments may be subject to existing or future mortgage financing and other indebtedness that will have priority over our equity investments.
Securities of or Interests in Entities Primarily Engaged in Real Estate Activities and Other Issuers
Subject to the percentage of ownership limitations and gross income tests necessary for REIT qualification, we may invest in securities of other REITs, other entities engaged in real estate activities or securities of other issuers. We may enter into joint ventures or partnerships for the purpose of obtaining an equity interest in a particular property. We do not currently intend to invest in the securities of other issuers except in connection with joint ventures or acquisitions of indirect interests in properties.
Investments in Real Estate Mortgages

-10-


While our current portfolio consists of, and our business objectives emphasize, equity investments in commercial real estate, we may, at the discretion of management or our Board of Trustees, invest in other types of equity real estate investments, mortgages and other real estate interests. We do not presently intend to invest to a significant extent in mortgages or deeds of trust, but may invest in participating mortgages if we conclude that we may benefit from the cash flow or any appreciation in the value of the property securing a mortgage.

-9-


Dispositions
Our disposition of properties is based upon management’s periodic review of our portfolio and the determination by management or our Board of Trustees that a disposition would be in our best interests.
Financing Policies
A primary objective of our financing policy has been to manage our financial position to allow us to raise capital from a variety of sources at competitive rates. Our mortgages, credit facilities and unsecured debt securities contain customary restrictions and limitations on our ability to incur indebtedness. Our charter documents do not limit the indebtedness that we may incur. Our financing strategy is to maintain a strong and flexible financial position by limiting our debt to a prudent level and minimizing our variable interest rate exposure. We intend to finance future growth with the most advantageous source of capital available to us at the time of an acquisition. These sources may include selling common stock, preferred stock, debt securities, depository shares or warrants through public offerings or private placements, utilizing availability under our unsecured revolving credit facilities or incurring additional indebtedness through secured or unsecured borrowings either or through mortgages with recourse limited to specific properties. To qualify as a REIT, we must distribute to our shareholders each year at least ninety percent of our net taxable income, excluding any net capital gain. This distribution requirement makes it unlikely that we will be able to fund future capital needs, including for acquisitions and developments, substantially from income from operations. Therefore, we expect to continue to rely on third party sources of capital to fund future capital needs.
Working Capital Reserves
We maintain working capital reserves and access to borrowings in amounts that our management determines to be adequate to meet our normal contingencies.
Policies with Respect to Other Activities
We expect to issue additional common and preferred shares of beneficial interest in the future and may authorize our Operating Partnership to issue additional common and preferred units of limited partnership interest, including to persons who contribute their interests in properties to us in exchange for such units. We have not engaged in trading, underwriting or agency distribution or sale of securities of unaffiliated issuers and we do not intend to do so. At all times, we intend to make investments consistent with our qualification as a REIT, unless because of circumstances or changes in the Internal Revenue Code of 1986, as amended (or the Treasury Regulations), our Board of Trustees determines that it is no longer in our best interests to qualify as a REIT. We may make loans to third parties, including to joint ventures in which we participate. We intend to make investments in such a way that we will not be treated as an investment company under the Investment Company Act of 1940.
Management Activities
We provide third-party real estate management services primarily through fourfive subsidiaries (collectively, the “Management Companies”): Brandywine Realty Services Corporation (“BRSCO”), BTRS, Inc. (“BTRS”), Brandywine Properties I Limited, Inc. (“BPI”), BDN Brokerage LLC (“BBL”) and Brandywine Properties Management, L.P. (“BPM”). BRSCO, BTRS and BPI are taxable REIT subsidiaries. The Operating Partnership owns a 95% interest in BRSCO and the remaining 5% interest is owned by a partnership comprised of a current executive and former executive of the Company, each of whom is a member of our Board of Trustees. The Operating Partnershipcurrently owns, directly and indirectly, 100% of each of BRSCO, BTRS, BPI, BBL and BPM.
As of December 31, 2006,2007, the Management Companies were managing properties containing an aggregate of approximately 42.343.0 million net rentable square feet, of which approximately 28.228.5 million net rentable square feet related to Properties owned by us and approximately 13.014.5 million net rentable square feet related toof properties owned by third parties and unconsolidated Real Estate Ventures.

-11-


Geographic Segments
As of December 31, 20062007 we were managing our portfolio within nineseven segments: (1) Pennsylvania—West,Pennsylvania, (2) Pennsylvania—North,New Jersey/Delaware, (3) New Jersey, (4) Urban, (5) Richmond, Virginia, (6)(4) California—North, (7)(5) California—South, (8) Mid-Atlantic(6) Metropolitan Washington D.C and (9)(7) Southwest. The Pennsylvania—WestPennsylvania segment includes properties in Chester, Delaware, Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery counties in the Philadelphia suburbs of Pennsylvania. The Pennsylvania—North segment includes properties northand the City of Philadelphia in Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery

-10-


counties.Pennsylvania. The New JerseyJersey/Delaware segment includes properties in counties in the southern and central part of New Jersey including Burlington, Camden and Mercer counties and in Bucks County, Pennsylvania. The Urban segment includes properties in the City of Philadelphia, Pennsylvania and the state of Delaware. The Richmond, Virginia segment includes properties primarily in Albemarle, Chesterfield and Henrico counties, the City of Richmond and Durham, North Carolina. The California—North segment includes properties in the City of Oakland and Concord. The California—South segment includes properties in the City of Carlsbad and San Diego.Rancho Bernardo . The Mid-AtlanticMetropolitan Washington, D.C. segment includes properties in Northern Virginia and the suburban Maryland. The Southwest segment includes properties in Dallas and Travis countiescounty of Texas. Our corporate group is responsible for cash and investment management, development of certain real estate properties during the construction period and general support functions.
Competition
The real estate business is highly competitive. Our properties compete for tenants with similar properties primarily on the basis of location, total occupancy costs (including base rent and operating expenses), services provided, and the design and condition of the improvements. We also face competition when attempting to acquire or develop real estate, including competition from domestic and foreign financial institutions, other REITs, life insurance companies, pension funds, partnerships and individual investors. Additionally, our ability to compete depends upon trends in the economies of our markets, investment alternatives, financial condition and operating results of current and prospective tenants, availability and cost of capital, construction and renovation costs, land availability, completion ofour ability to obtain necessary construction approvals, taxes, governmental regulations, legislation and population trends.
Insurance
We maintain comprehensivecommercial general liability and “all-risk” property insurance on our properties, including for liability, fire and flood.properties. We intend to obtain similar coverage for properties we acquire in the future. There are certain types of losses, generally of a catastrophic nature, such as losses from war, terrorism, environmental issues, floods, hurricanes orand earthquakes that may be subject to limitations in certain areas.areas or which may be uninsurable risks. We exercise our discretion in determining amounts, coverage limits and deductibility provisions of insurance, with a view to maintaining appropriate insurance on our investments at a reasonable cost and on suitable terms. If we suffer a substantial loss, our insurance coverage may not be sufficient to pay the full current market value or current replacement cost of our lost investment. Inflation, changes in building codes and ordinances, environmental considerations and other factors also might make it impractical to use insurance proceeds to fully replace or restore a property after it has been damaged or destroyed.
Employees
As of December 31, 2006,2007, we had 599562 full-time employees, including 4043 union employees.
Government Regulations Relating to the Environment
Many laws and governmental regulations relating to the environment apply to us and changes in these laws and regulations, or their interpretation by agencies and the courts, occur frequently and may adversely affect us.
Existing conditions at some of our Properties. Independent environmental consultants have conducted Phase I or similar environmental site assessments on all of our properties. We generally obtain these assessments prior to the acquisition of a property and may later update them as required for subsequent financing of the property or as requested by a tenant. Site assessments are generally performed to ASTM standards then existing for Phase I site assessments, and typically include a historical review, a public records review, a visual inspection of the surveyed site, and the issuance of a written report. These assessments do not generally include any soil samplings or subsurface investigations. Depending on the age of the property, the Phase I may have included an assessment of asbestos-containing materials. For properties where asbestos-containing materials were identified or suspected, an

-12-


operations and maintenance plan was generally prepared and implemented. See Note 2 to our consolidated financial statements for our evaluation in accordance with FIN 47,Accounting for Conditional Asset Retirement Obligations.
Historical operations at or near some of our properties, including the operation of underground storage tanks, may have caused soil or groundwater contamination. We are not aware of any such condition, liability or concern by any other means that would give rise to material, uninsured environmental liability. However, the assessments may have failed to reveal all environmental conditions, liabilities or compliance concerns; there may be material environmental

-11-


conditions, liabilities or compliance concerns that a review failed to detect or which arose at a property after the review was completed; future laws, ordinances or regulations may impose material additional environmental liability; and current environmental conditions at our Properties may be affected in the future by tenants, third parties or the condition of land or operations near our Properties, such as the presence of underground storage tanks. We cannot be certain that costs of future environmental compliance will not affect our ability to make distributions to our shareholders.
Use of hazardous materials by some of our tenants.Some of our tenants handle hazardous substances and wastes on our properties as part of their routine operations. Environmental laws and regulations may subject these tenants, and potentially us, to liability resulting from such activities. We generally require our tenants, in their leases, to comply with these environmental laws and regulations and to indemnify us for any related liabilities. These tenants are primarily involved in the life sciences and the light industrial and warehouse business. We are not aware of any material noncompliance, liability or claim relating to hazardous or toxic substances or petroleum products in connection with any of our Properties, and we do not believe that on-going activities by our tenants will have a material adverse effect on our operations.
Costs related to government regulation and private litigation over environmental matters. Under environmental laws and regulations, we may be liable for the costs of removal, remediation or disposal of hazardous or toxic substances present or released on our Properties. These laws could impose liability without regard to whether we are responsible for, or knew of, the presence or release of the hazardous materials. Government investigations and remediation actions may entail substantial costs and the presence or release of hazardous substances on a property could result in governmental cleanup actions or personal injury or similar claims by private plaintiffs.
Potential environmental liabilities may exceed our environmental insurance coverage limits.We carry what we believe to be sufficient environmental insurance to cover potential liability for soil and groundwater contamination, mold impact, and the presence of asbestos-containing materials at the affected sites identified in our environmental site assessments. Our insurance policies are subject to conditions, qualifications and limitations. Therefore, we cannot provide any assurance that our insurance coverage will be sufficient to cover all liabilities for losses.
Other
We do not have any foreign operations and our business is not seasonal. Our operations are not dependent on a single tenant or a few tenants and no single tenant accounted for more than 10% of our total 20062007 revenue.
Code of Conduct
We maintain a Code of Business Conduct and Ethics applicable to our Board and all of our officers and employees, including our principal executive officer, principal financial officer, principal accounting officer, controller and persons performing similar functions. A copy of our Code of Business Conduct and Ethics is available on our website, www.brandywinerealty.com. In addition to being accessible through our website, copies of our Code of Business Conduct and Ethics can be obtained, free of charge, upon written request to Investor Relations, 555 East Lancaster Avenue, Suite 100, Radnor, PA 19087. Any amendments to or waivers of our Code of Business Conduct and Ethics that apply to our principal executive officer, principal financial officer, principal accounting officer, controller and persons performing similar functions and that relate to any matter enumerated in Item 406(b) of Regulation S-K promulgated by the SEC will be disclosed on our website.
Corporate Governance Principles and Board Committee Charters
Our Corporate Governance Principles and the charters of the Audit Committee, Compensation Committee and Corporate Governance Committee of the Board of Trustees of Brandywine Realty Trust and additional information regarding our corporate governance are available on our website, www.brandywinerealty.com. In addition to being

-13-


accessible through our website, copies of our Corporate Governance Principles and charters of our Board Committees can be obtained, free of charge, upon written request to Investor Relations, 555 Lancaster Avenue, Radnor, PA 19087.
Availability of SEC Reports
We file annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K and other information with the SEC. Members of the public may read and copy materials that we file with the SEC at the

-12-


SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. Members of the public may also obtain information on the Public Reference Room by calling the SEC at 1-800-732-0330. The SEC also maintains an Internet web site that contains reports, proxy and information statements and other information regarding issuers, including us, that file electronically with the SEC. The address of that site is http://www.sec.gov. Our annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K and other information filed by us with the SEC are available, without charge, on our Internet web site, http://www.brandywinerealty.com, as soon as reasonably practicable after they are filed electronically with the SEC. Copies are also available, without charge, from Secretary, Brandywine Realty Trust, 555 East Lancaster Avenue, Suite 100, Radnor, PA 19087.
Item 1A. Risk Factors
Our performance is subject to risks associated with our properties and with the real estate industry.
Our economic performance and the value of our real estate assets, and consequently the value of our securities, are subject to the risk that if our properties do not generate revenues sufficient to meet our operating expenses, including debt service and capital expenditures, our cash flow and ability to pay distributions to our shareholders will be adversely affected. Events or conditions beyond our control that may adversely affect our operations or the value of our properties include:
  downturns in the national, regional and local economic climate;climate including increases in the unemployment rate and inflation;
 
  competition from other office, industrial and commercial buildings;
 
  local real estate market conditions, such as oversupply or reduction in demand for office, or other commercial or industrial space;
 
  changes in interest rates and availability of financing;
 
  vacancies, changes in market rental rates and the need to periodically repair, renovate and re-lease space;
 
  increased operating costs, including insurance expense, utilities, real estate taxes, janitorial costs, state and local taxes, labor shortages and heightened security costs;
 
  civil disturbances, earthquakes and other natural disasters, or terrorist acts or acts of war which may result in uninsured or underinsured losses;
 
  significant expenditures associated with each investment, such as debt service payments, real estate taxes, insurance and maintenance costs which are generally not reduced when circumstances cause a reduction in revenues from a property; and
 
  declines in the financial condition of our tenants and our ability to collect rents from our tenants.
We may experience increased operating costs, which might reduce our profitability.
Our properties are subject to increases in operating expenses such as for cleaning, electricity, heating, ventilation and air conditioning, administrative costs and other costs associated with security, landscaping and repairs and maintenance of our properties. In general, under our leases with tenants, we pass onthrough all or a portion of these costs to them. We cannot assure you, however, that tenants will actually bear the full burden of these higher costs, or that such increased costs will not lead them, or other prospective tenants, to seek office space elsewhere. If operating expenses increase, the availability of other comparable office space in our core geographic markets might

-14-


limit our ability to increase rents; if operating expenses increase without a corresponding increase in revenues, our profitability could diminish and limit our ability to make distributions to shareholders.
Our investment in property development or redevelopment may be more costly or difficult to complete than we anticipate.
We intend to continue to develop properties where market conditions warrant such investment. Once made, these investments may not produce results in accordance with our expectations. Risks associated with our development and construction activities include:

-13-


  the unavailability of favorable financing alternatives in the private and public debt markets;
 
  having debt capacity sufficient to pay development costs;
unprecedented market volatility in the share price of REITs;
dependence on the financial services sector as part of our tenant base;
construction costs exceeding original estimates due to rising interest rates, diminished availability of materials and labor, and increases in the costs of materials and labor;
 
  construction and lease-up delays resulting in increased debt service, fixed expenses and construction or renovation costs;
 
  expenditure of funds and devotion of management’s time to projects that we do not complete;
 
  the unavailability or scarcity of utilities;
 
  occupancy rates and rents at newly completed properties may fluctuate depending on a number of factors, including market and economic conditions, resulting in lower than projected rental rates and a corresponding lower return on our investment; and
 
  complications (including building moratoriums and anti-growth legislation) in obtaining necessary zoning, occupancy and other governmental permits.permits; and
increased use restrictions by local zoning or planning authorities limiting our ability to develop and impacting the size of developments.

-15-


We may not successfully integrate our historic operations with thoseThe disruption in the debt capital markets could adversely affect us.
Since mid-2007, there has been a marked deterioration in the credit markets affecting the availability of Prentisscredit, the terms on which it can be sourced and the intended benefitsoverall cost of debt capital. This could negatively affect us by:
Reducing the availability of potential bidders to bid attractively for our acquisitionfor-sale properties or to close on sales at all;
Increasing the cost of Prentiss may not be realized.
Our January 2006 acquisition of Prentiss presents challengesdebt we use to management, including the integration offinance our historicongoing operations properties and personnel with those of Prentiss. The acquisition also poses other risks commonly associated with similar transactions, including unanticipated liabilities, unexpectedfund our development and redevelopment activities, thereby increasing their costs and reducing the diversionassociated returns; and
Preventing us from accessing necessary debt capital on a timely basis leading us to consider potentially more dilutive capital transactions such as undesirable sales of management’s attention to the integration of the operations of the combined companies. Any difficulties that our combined company encounters in the transition and integration processes, and any level of integration that is not successfully achieved, could have an adverse effect on our revenue, level of expenses and operating results. We may also experience operational interruptionsproperties or the loss of key employees, tenants and customers. As a result, notwithstanding our expectations, we may not realize any of the anticipated benefits or cost savings of the Prentiss acquisition.securities.
We face risks associated with property acquisitions.
We have in the past acquired, and intend in the future to acquire, properties and portfolios of properties, including large portfolios such as our acquisition of Prentiss, that would increase our size and potentially alter our capital structure. Although we believe that the acquisitions that we have completed in the past and that we expect to undertake in the future have, and will, enhance our future financial performance, the success of such transactions is subject to a number of factors, including the risk that:
  we may not be able to obtain financing for acquisitions on favorable terms;
 
  acquired properties may fail to perform as expected;
 
  the actual costs of repositioning or redeveloping acquired properties may be higher than our estimates;
 
  acquired properties may be located in new markets where we may have limited knowledge and understanding of the local economy, an absence of business relationships in the area or unfamiliarity with local governmental and permitting procedures; and
 
  we may not be able to efficiently integrate acquired properties, particularly portfolios of properties, into our organization and to manage new properties in a way that allows us to realize cost savings and synergies.
We have acquired in the past and in the future may acquire properties or portfolios of properties through tax deferred contribution transactions in exchange for partnership interests in our Operating Partnership. This acquisition structure has the effect, among others,other factors, of reducing the amount of tax depreciation we can deduct over

-14-


the tax life of the acquired properties, and typically requires that we agree to protect the contributors’ ability to defer recognition of taxable gain through restrictions on our ability to dispose of the acquired properties and/or the allocation of partnership debt to the contributors to maintain their tax bases. These restrictions on dispositions could limit our ability to sell an asset atduring a specified time, or on terms, that would be favorable absent such restrictions.
Acquired properties may subject us to known and unknown liabilities.
Properties that we acquire may be subject to known and unknown liabilities for which we would have no recourse, or only limited recourse, to the former owners of such properties. As a result, if a liability were asserted against us based upon ownership of an acquired property, we might be required to pay significant sums to settle it, which could adversely affect our financial results and cash flow. Unknown liabilities relating to acquired properties could include:
  liabilities for clean-up of pre-existing disclosed or undisclosed environmental contamination;
 
  claims by tenants, vendors or other persons arising on account of actions or omissions of the former owners of the properties; and
 
  liabilities incurred in the ordinary course of business.

-16-


We have agreed not to sell certain of our properties and to maintain indebtedness subject to guarantees.
We have agreed not to sell some of our properties for varying periods of time, in transactions that would trigger taxable income to the former owners, and we may enter into similar arrangements as a part of future property acquisitions. One of these tax protection agreements is with one of our current trustees. These agreements generally provide that we may dispose of the subject properties only in transactions that qualify as tax-free exchanges under Section 1031 of the Internal Revenue Code or in other tax deferred transactions. Such transactions can be difficult to complete and can result in the property acquired in exchange for the disposed of property inheriting the tax attributes (including tax protection covenants) of the disposed of property. Violation of these tax protection agreements would impose significant costs on us. As a result, we are restricted with respect to decisions related to financing, encumbering, expanding or selling of these properties.
We have also entered into agreements that provide prior owners of properties with the right to guarantee specific amounts of indebtedness and, in the event that the specific indebtedness that they guarantee is repaid or reduced, we would be required to provide substitute indebtedness for them to guarantee. These agreements may hinder actions that we may otherwise desire to take to repay or refinance guaranteed indebtedness because we would be required to make payments to the beneficiaries of such agreements if we violate these agreements.
We may be unable to renew leases or re-lease space as leases expire.expire; certain leases may expire early.
If tenants do not renew their leases upon expiration, we may be unable to re-lease the space. Even if the tenants do renew their leases or if we can re-lease the space, the terms of renewal or re-leasing (including the cost of required renovations) may be less favorable than current lease terms. Certain leases grant the tenants an early termination right upon payment of a termination penalty.penalty or if certain lease terms are not complied with.
We face significant competition from other real estate developers.
We compete with real estate developers, operators and institutions for tenants and acquisition and development opportunities. Some of these competitors have significantly greater financial resources than we have. Such competition may reduce the number of suitable investment opportunities available to us, may interfere with our ability to attract and retain tenants and may increase vacancies, which could result in increased supply and lower market rental rates, reducing our bargaining leverage and adversely affect our ability to improve our operating leverage. In addition, some of our competitors may be willing (because(e.g., because their properties may have vacancy rates higher than those for our properties) to make space available at lower pricesrental rates or with higher tenant concession percentages than available space in our properties or for other reasons.properties. We cannot assure you that this competition will not adversely affect our cash flow and our ability to make distributions to shareholders.

-15-


Changes in market conditions including capitalization rates applied in real estate acquisitions could impact our ability to grow through acquisitions.
We selectively pursue acquisitions in our core markets when long-term yields make acquisitions attractive. We compete with numerous property owners for the acquisition of real estate properties. Some of these competitors may be willing to accept lower yields on their investments impacting our ability to acquire real estate assets and thus limit our external growth. We cannot assure you that this competition will not adversely affect our cash flow and our ability to make distributions to shareholders.
Property ownership through joint ventures may limit our ability to act exclusively in our interest.
We develop and acquire properties in joint ventures with other persons or entities when we believe circumstances warrant the use of such structures. As of December 31, 2006,2007, we had investments in eleven14 unconsolidated real estate ventures and fourthree additional real estate ventures that are consolidated in our financial statements. Our investments in the eleven14 unconsolidated real estate ventures aggregated approximately $74.6$71.6 million (net of returns of investment amounts) as of December 31, 2006.2007. We could become engaged in a dispute with one or more of our joint venture partners that might affect our ability to operate a jointly-owned property. Moreover, our joint venture partners may, at any time, have business, economic or other objectives that are inconsistent with our objectives, including objectives that relate to the appropriate timing and terms of any sale or refinancing of a property. In some instances, our joint venture partners may have competing interests in our markets that could create conflicts of interest. If the objectives of our joint venture partners or the lenders to our joint ventures are inconsistent with our own objectives, we willmay not be able to act exclusively in our interests.

-17-


Because real estate is illiquid, we may not be able to sell properties when appropriate.
Real estate investments generally, and in particular large office and industrialindustrial/flex properties like those that we own, often cannot be sold quickly. Consequently, we may not be able to alter our portfolio promptly in response to changes in economic or other conditions. In addition, the Internal Revenue Code limits our ability to sell properties that we have held for fewer than four years without resulting in adverse consequences to our shareholders. Furthermore, properties that we have developed and have owned for a significant period of time or that we acquired in exchange for partnership interests in our operating partnership often have a low tax basis. If we were to dispose of any of these properties in a taxable transaction, we may be required under provisions of the Internal Revenue Code applicable to REITs to distribute a significant amount of the taxable gain to our shareholders and this could, in turn, impact our cash flow. In some cases, tax protection agreements with third parties will prevent us from selling certain properties in a taxable transaction without incurring substantial costs. In addition, purchase options and rights of first refusal held by tenants or partners in joint ventures may also limit our ability to sell certain properties. All of these factors reduce our ability to respond to changes in the performance of our investments and could adversely affect our cash flow and ability to make distributions to shareholders as well as the ability of someone to purchase us, even if a purchase were in our shareholders’ best interests.
We may suffer adverse consequences due to the financial difficulties, bankruptcy or insolvency of our tenants.
If one or more of our tenants were to experience financial difficulties, including bankruptcy, insolvency or a general downturn ofin their business, there could be an adverse effect on our financial performance and distributions to shareholders. We cannot assure you that any tenant that files for bankruptcy protection will continue to pay us rent. A bankruptcy filing by or relating to one of our tenants or a lease guarantor would bar efforts by us to collect pre-bankruptcy debts from that tenant or lease guarantor, or its property, unless we receive an order permitting us to do so from the bankruptcy court. In addition, we cannot evict a tenant solely because of bankruptcy. The bankruptcy of a tenant or lease guarantor could delay our efforts to collect past due balances under the relevant leases, and could ultimately preclude collection of these sums. If a lease is assumed by the tenant in bankruptcy, all pre-bankruptcy balances due under the lease must be paid to us in full. If, however, a lease is rejected by a tenant in bankruptcy, we would have only a general unsecured claim for damages. Any such unsecured claim would only be paid to the extent that funds are available and only in the same percentage as is paid to all other holders of unsecured claims. Restrictions under the bankruptcy laws further limit the amount of any other claims that we can make if a lease is rejected. As a result, it is likely that we would recover substantially less than the full value of any such unsecured claims that we might hold.the remaining rent during the term.

-16-


Some potential losses are not covered by insurance.
We currently carry comprehensive liability, fire, extended coverage and“all-risk” property, rental loss insurance and commercial general liability coverage on all of our properties. We believe the policy specifications and insured limits of these policies are adequate and appropriate. There are, however, types of losses, such as lease and other contract claims, biological, radiological and terrorismnuclear hazards and acts of war that generally are not insured. We cannot assure you that we will be able to renew insurance coverage in an adequate amount or at reasonable prices. In addition, insurance companies may no longer offer coverage against certain types of losses, such as losses due to earthquake, terrorist acts and mold, or, if offered, these types of insurance may be prohibitively expensive. Should an uninsured loss or a loss in excess of insured limits occur, we could lose all or a portion of the capital we have invested in a property, as well as the anticipated future revenue from the property. In such an event, we might nevertheless remain obligated for any mortgage debt or other financial obligations related to the property. We cannot assure you that material losses in excess of insurance proceeds will not occur in the future. If any of our properties were to experience a catastrophic loss, it could seriously disrupt our operations, delay revenue and result in large expenses to repair or rebuild the property. Such events could adversely affect our cash flow and ability to make distributions to shareholders.
Terrorist attacks and other acts of violence or war may adversely impact our performance and may affect the markets on which our securities are traded.
Terrorist attacks against our properties, or against the United States or our interests, may negatively impact our operations and the value of our securities. Attacks or armed conflicts could result in increased operating costs; for example, it might cost more in the future for building security, property/casualtyproperty and liabilitycasualty insurance, and property maintenance. As a result of terrorist activities and other market conditions, the cost of insurance coverage for our properties could also increase. We might not be able to pass alongthrough the increased costs associated with such increased security measures and insurance to our tenants, which could reduce our profitability and cash flow.

-18-


Furthermore, any terrorist attacks or armed conflicts could result in increased volatility in or damage to the United States and worldwide financial markets and economy. Such adverse economic conditions could affect the ability of our tenants to pay rent and our costs of capitals, which could have a negative impact on our results.
Our ability to make distributions is subject to various risks.
Historically, we have paid quarterly distributions to our shareholders. Our ability to make distributions in the future will depend upon:
  the operational and financial performance of our properties;
 
  capital expenditures with respect to existing, developed and newly acquired properties;
 
  general and administrative costs associated with our operation as a publicly-held REIT;
 
  the amount of, and the interest rates on, our debt; and
 
  the absence of significant expenditures relating to environmental and other regulatory matters.
Certain of these matters are beyond our control and any significant difference between our expectations and actual results could have a material adverse effect on our cash flow and our ability to make distributions to shareholders.
Changes in the law may adversely affect our cash flow.
Because increases in income and service taxes are generally not passed through to tenants under leases, such increases may adversely affect our cash flow and ability to make expected distributions to shareholders. Our properties are also subject to various regulatory requirements, such as those relating to the environment, fire and safety. Our failure to comply with these requirements could result in the imposition of fines and damage awards and could result in a default under some of our tenant leases. Moreover, the costs to comply with any new or different regulations could adversely affect our cash flow and our ability to make distributions. Although we believe that our properties are in material compliance with all such requirements, we cannot assure you that these requirements will not change or that newly imposed requirements will not require significant expenditures.expenditures in order to be compliant.

-17-


The terms and covenants relating to our indebtedness could adversely impact our economic performance.
Like other real estate companies which incur debt, we are subject to risks associated with debt financing, such as the insufficiency of cash flow to meet required debt service payment obligations and the inability to refinance existing indebtedness. If our debt cannot be paid, refinanced or extended at maturity, in addition to our failure to repay our debt, we may not be able to make distributions to shareholders at expected levels or at all. Furthermore, an increase in our interest expense could adversely affect our cash flow and ability to make distributions to shareholders. If we do not meet our debt service obligations, any properties securing such indebtedness could be foreclosed on, which would have a material adverse effect on our cash flow and ability to make distributions and, depending on the number of properties foreclosed on, could threaten our continued viability.
Our credit facilities and the indenture governing our unsecured public debt securities contain (and any new or amended facility will contain) customary restrictions, requirements and other limitations on our ability to incur indebtedness, including total debt to asset ratios, secured debt to total asset ratios, debt service coverage ratios and minimum ratios of unencumbered assets to unsecured debt which we must maintain. Our ability to borrow under our credit facilities and our term loan is (and any new or amended facility will be) subject to compliance with such financial and other covenants. In the event that we fail to satisfy these covenants, we would be in default under the credit facilities and indenture and may be required to repay such debt with capital from other sources. Under such circumstances, other sources of capital may not be available to us, or may be available only on unattractive terms.
Increases in interest rates on variable rate indebtedness wouldwill increase our interest expense, which could adversely affect our cash flow and ability to make distributions to shareholders. Rising interest rates could also restrict our ability to refinance existing debt when it matures. In addition, an increase in interest rates could decrease the amounts that third parties are willing to pay for our assets, thereby limiting our ability to alter our portfolio promptly in relation to economic or other conditions. We have entered into and may, from time to time, enter into agreements such

-19-


as interest rate hedges, swaps, floors, caps and other interest rate hedging contracts with respect to a portion of our variable rate debt. Although these agreements may lessen the impact of rising interest rates on us, they also expose us to the risk that other parties to the agreements will not perform or that we cannot enforce the agreements.
Our degree of leverage could limit our ability to obtain additional financing or affect the market price of our equity shares or debt securities.
Our degree of leverage could affect our ability to obtain additional financing for working capital expenditures, development, acquisitions or other general corporate purposes. Our senior unsecured debt is currently rated investment grade by the three major rating agencies. We cannot, however, assure you that we will be able to maintain this rating. In the event that our unsecured debt is downgraded from the current rating, we would likely incur higher borrowing costs and the market prices of our common shares and debt securities might decline. Our degree of leverage could also make us more vulnerable to a downturn in business or the economy generally.
Potential liability for environmental contamination could result in substantial costs.
Under various federal, state and local laws, ordinances and regulations, we may be liable for the costs to investigate and remove or remediate hazardous or toxic substances on or in our properties, often regardless of whether we know of or are responsible for the presence of these substances. These costs may be substantial. While we do maintain environmental insurance, we can not be assured that our insurance coverage will be sufficient to protect us from all of the aforesaid remediation costs. Also, if hazardous or toxic substances are present on a property, or if we fail to properly remediate such substances, our ability to sell or rent the property or to borrow using that property as collateral may be adversely affected.
Additionally, we develop, manage, lease and/or operate various properties for third parties. Consequently, we may be considered to have been or to be an operator of these properties and, therefore, potentially liable for removal or remediation costs or other potential costs that could relate to hazardous or toxic substances.
An earthquake or other natural disasters could adversely affect our business.
Some of our properties are located in California which is a high risk geographical area for earthquakes or other natural disasters. Depending upon its magnitude, an earthquake could severely damage our properties which would adversely affect our business. We maintain earthquake insurance for our California properties and the resulting business interruption. We cannot assure you that our insurance will be sufficient if there is a major earthquake.

-18-


Americans with Disabilities Act compliance could be costly.
The Americans with Disabilities Act of 1990, as amended (“ADA”) requires that all public accommodations and commercial facilities, including office buildings, meet certain federal requirements related to access and use by disabled persons. Compliance with ADA requirements could involve the removal of structural barriers from certain disabled persons’ entrances which could adversely affect our financial condition and results of operations. Other federal, state and local laws may require modifications to or restrict further renovations of our properties with respect to such accesses. Although we believe that our properties are in material compliance with present requirements, noncompliance with the ADA or similar or related laws or regulations could result in the United States government imposing fines or private litigants being awarded damages against us. In addition, changes to existing requirements or enactments of new requirements could require significant expenditures. Such costs may adversely affect our cash flow and ability to make distributions to shareholders.
Our status as a REIT (or any of our REIT subsidiaries) is dependent on compliance with federal income tax requirements.
If we (or any of our REIT subsidiaries) fail to qualify as a REIT, we or the affected REIT subsidiarysubsidiaries would be subject to federal income tax at regular corporate rates. Also, unless the IRS granted us or our affected REIT subsidiary,subsidiaries, as the case may be, relief under certain statutory provisions, we or it would remain disqualified as a REIT for four years following the year it first failed to qualify. If we or any of our REIT subsidiaries fails to qualify as a REIT, we or they would be required to pay significant income taxes and would, therefore, have less money available for investments or for distributions to shareholders. This would likely have a material adverse effect on the value of the combined company’s securities. In addition, we or our affected REIT subsidiaries would no longer be required to make any distributions to shareholders.

-20-


Failure of the Operating Partnership (or a subsidiary partnership) to be treated as a partnership would have serious adverse consequences to our shareholders. If the IRS were to successfully challenge the tax status of the Operating Partnership or any of its subsidiary partnerships for federal income tax purposes, the Operating Partnership or the affected subsidiary partnership would be taxable as a corporation.  In such event we would cease to qualify as a REIT and the imposition of a corporate tax on the Operating Partnership or a subsidiary partnership would reduce the amount of cash available for distribution from the Operating Partnership to us and ultimately to our shareholders.
Even if we qualify as a REIT, we will be required to pay certain federal, state and local taxes on our income and properties.  In addition, our taxable REIT subsidiaries will be subject to federal, state and local income tax at regular corporate rates on their net taxable income derived from management, leasing and related service business. If we have net income from a prohibited transaction, such income will be subject to a 100% tax.
We face possible state and local tax audits.
Because we are organized and qualify as a REIT, we are generally not subject to federal income taxes, but are subject to certain state and local taxes. In the normal course of business, certain entities through which we own real estate either have undergone, or are currently undergoing, tax audits. Although we believe that we have substantial arguments in favor of our positions in the ongoing audits, in some instances there is no controlling precedent or interpretive guidance on the specific point at issue. Collectively, tax deficiency notices received to date from the jurisdictions conducting the ongoing audits have not been material. However, there can be no assurance that future audits will not occur with increased frequency or that the ultimate result of such audits will not have a material adverse effect on our results of operations.
Competition for skilled personnel could increase labor costs.
We compete with various other companies in attracting and retaining qualified and skilled personnel. We depend on our ability to attract and retain skilled management personnel who are responsible for the day-to-day operations of our company. Competitive pressures may require that we enhance our pay and benefits package to compete effectively for such personnel. We may not be able to offset such added costs by increasing the rates we charge tenants. If there is an increase in these costs or if we fail to attract and retain qualified and skilled personnel, our business and operating results could be harmed.

-19-


We are dependent upon our key personnel.
We are dependent upon our key personnel whose continued service is not guaranteed. We are dependent on our executive officers for strategic business direction and real estate experience. In connection with the acquisition of Prentiss, we entered into employment agreements with several former officers of Prentiss. Although we believe that we could find replacements for these key personnel, (including the former Prentiss officers), loss of their services could adversely affect our operations.
Although we have an employment agreement with Gerard H. Sweeney, our President and Chief Executive Officer, for a term extending to February 9, 2010, this agreement does not restrict his ability to become employed by a competitor following the termination of his employment.  We do not have key man life insurance coverage on our executive officers.
Certain limitations will exist with respect to a third party’s ability to acquire us or effectuate a change in control.
Limitations imposed to protect our REIT status. In order to protect us against the loss of our REIT status, our Declaration of Trust limits any shareholder from owning more than 9.8% in value of our outstanding shares, subject to certain exceptions.  The ownership limit may have the effect of precluding acquisition of control of us. If anyone acquires shares in excess of the ownership limit, we may:
  consider the transfer to be null and void;
 
  not reflect the transaction on our books;
 
  institute legal action to stop the transaction;
 
  not pay dividends or other distributions with respect to those shares;

-21-


  not recognize any voting rights for those shares; and
 
  consider the shares held in trust for the benefit of a person to whom such shares may be transferred.
Limitation due to our ability to issue preferred shares.shares.Our Declaration of Trust authorizes our Board of Trustees to cause us to issue preferred shares, without limitation as to amount and without shareholder consent.  Our Board of Trustees is able to establish the preferences and rights of any preferred shares issued and these shares could have the effect of delaying or preventing someone from taking control of us, even if a change in control were in our shareholders’ best interests.
Limitation imposed by the Maryland Business Combination Law. The Maryland General Corporation Law, as applicable to Maryland REITs, establishes special restrictions against “business combinations” between a Maryland REIT and “interested shareholders” or their affiliates unless an exemption is applicable.  An interested shareholder includes a person who beneficially owns, and an affiliate or associate of the trust who, at any time within the two-year period prior to the date in question, was the beneficial owner of, ten percent or more of the voting power of our then-outstanding voting shares.  Among other things, Maryland law prohibits (for a period of five years) a merger and certain other transactions between a Maryland REIT and an interested shareholder unless the board of trustees had approved the transaction before the party became an interested shareholder.  The five-year period runs from the most recent date on which the interested shareholder became an interested shareholder.  Thereafter, any such business combination must be recommended by the board of trustees and approved by two super-majority shareholder votes unless, among other conditions, the common shareholders receive a minimum price for their shares and the consideration is received in cash or in the same form as previously paid by the interested shareholder for our shares or unless the board of trustees approved the transaction before the party in question became an interested shareholder.  The business combination statute could have the effect of discouraging offers to acquire us and of increasing the difficulty of consummating any such offers, even if the acquisition would be in our shareholders’ best interests.
Maryland Control Share Acquisition Act. Maryland law provides that “control shares” of a REIT acquired in a “control share acquisition” shall have no voting rights except to the extent approved by a vote of two-thirds of the vote eligible to be cast on the matter under the Maryland Control Share Acquisition Act.  “Control Shares” means

-20-


shares that, if aggregated with all other shares previously acquired by the acquirer or in respect of which the acquirer is able to exercise or direct the exercise of voting power (except solely by virtue of a revocable proxy), would entitle the acquirer to exercise voting power in electing trustees within one of the following ranges of voting power: one-tenth or more but less than one-third, one-third or more but less than a majority or a majority or more of all voting power. Control shares do not include shares the acquiring person is then entitled to vote as a result of having previously obtained shareholder approval. A “control share acquisition” means the acquisition of control shares, subject to certain exceptions. If voting rights or control shares acquired in a control share acquisition are not approved at a shareholder’s meeting, then subject to certain conditions and limitations the issuer may redeem any or all of the control shares for fair value. If voting rights of such control shares are approved at a shareholder’s meeting and the acquirer becomes entitled to vote a majority of the shares entitled to vote, all other shareholders may exercise appraisal rights.  Any control shares acquired in a control share acquisition which are not exempt under our Bylaws are subject to the Maryland Control Share Acquisition Act. Our Bylaws contain a provision exempting from the control share acquisition statute any and all acquisitions by any person of our shares.  We cannot assure you that this provision will not be amended or eliminated at any time in the future.
Advance Notice Provisions for Shareholder Nominations and Proposals.Proposals.Our bylaws require advance notice for shareholders to nominate persons for election as trustees at, or to bring other business before, any meeting of our shareholders. This bylaw provision limits the ability of shareholders to make nominations of persons for election as trustees or to introduce other proposals unless we are notified in a timely manner prior to the meeting.
Many factors can have an adverse effect on the market value of our securities.
A number of factors might adversely affect the price of our securities, many of which are beyond our control.  These factors include:
increases in market interest rates, relative to the dividend yield on our shares.  If market interest rates go up, prospective purchasers of our securities may require a higher yield.  Higher market interest rates would not, however, result in more funds for us to distribute and, to the contrary, would likely increase our

-22-


  increases in market interest rates, relative to the dividend yield on our shares. If market interest rates go up, prospective purchasers of our securities may require a higher yield. Higher market interest rates would not, however, result in more funds for us to distribute and, to the contrary, would likely increase our borrowing costs and potentially decrease funds available for distribution.  Thus, higher market interest rates could cause the market price of our common shares to go down;
 
  anticipated benefit of an investment in our securities as compared to investment in securities of companies in other industries (including benefits associated with tax treatment of dividends and distributions);
 
  perception by market professionals of REITs generally and REITs comparable to us in particular;
 
  level of institutional investor interest in our securities;
 
  relatively low trading volumes in securities of REITs;
 
  our results of operations and financial condition; and
 
  investor confidence in the stock market generally.
The market value of our common shares is based primarily upon the market’s perception of our growth potential and our current and potential future earnings and cash distributions. Consequently, our common shares may trade at prices that are higher or lower than our net asset value per common share. If our future earnings or cash distributions are less than expected, it is likely that the market price of our common shares will diminish.
Additional issuances of equity securities may be dilutive to shareholders.
The interests of our shareholders could be diluted if we issue additional equity securities to finance future developments or acquisitions or to repay indebtedness. Our Board of Trustees may authorize the issuance of additional equity securities without shareholder approval. Our ability to execute our business strategy depends upon our access to an appropriate blend of debt financing, including unsecured lines of credit and other forms of secured and unsecured debt, and equity financing, including the issuance of common and preferred equity.

-21-


The issuance of preferred securities may adversely affect the rights of holders of our common shares.
Because our Board of Trustees has the power to establish the preferences and rights of each class or series of preferred shares, we may afford the holders in any series or class of preferred shares preferences, distributions, powers and rights, voting or otherwise, senior to the rights of holders of common shares. Our Board of Trustees also has the power to establish the preferences and rights of each class or series of units in Brandywine Operating Partnership, and may afford the holders in any series or class of preferred units preferences, distributions, powers and rights, voting or otherwise, senior to the rights of holders of common units.
The acquisition of new properties or the development of new properties which lack operating history with us may give rise to difficulties in predicting revenue potential.
We will continue to acquire additional properties.properties and seek to develop our existing land holdings strategically. These acquisitions and developments could fail to perform in accordance with expectations. If we fail to accurately estimate occupancy levels, operating costs or costs of improvements to bring an acquired property or a development property up to the standards established for our intended market position, the performance of the property may be below expectations. Acquired properties may have characteristics or deficiencies affecting their valuation or revenue potential that we have not yet discovered. We cannot assure you that the performance of properties acquired or developed by us will increase or be maintained under our management.
Our performance is dependent upon the economic conditions of the markets in which our properties are located.
Our properties are located in the Mid-Atlantic, Southwest, Northern CaliforniaPennsylvania, New Jersey, Delaware, Maryland, Virginia, Texas, and Southern California markets.California. Like other real estate markets, these commercial real estate markets have experienced economic downturns in the past, and future declines in 2008 in any of these economies or real estate markets could adversely affect cash available for distribution. Our financial performance and ability to make distributions to our shareholders will be particularly sensitive to the economic conditions in these markets. The local economic climate, which may be adversely impacted by business layoffs or downsizing, industry slowdowns, changing demographics and other factors, and local real estate conditions, such as oversupply of or reduced demand for office, industrial

-23-


and other competing commercial properties, may affect revenues and the value of properties, including properties to be acquired or developed. We cannot assure you that these local economies will grow in the future.
Item 1B. Unresolved Staff Comments
None
Item 2. Properties
Property Acquisitions
We acquired the following properties during the year ended December 31, 2006:2007:
                 
Month of     # of  Rentable Square  Purchase 
Acquisition Property/Portfolio Name Location Buildings  Feet/ Acres  Price 
              (in 000’s) 
Office:
                
Jan-06 Prentiss Properties Various  79   14,043,326  $2,701,652 
Feb-06 100 Lenox Drive Lawrenceville, NJ  1   92,980   10,150 
Apr-06 One Paragon Place Richmond, VA  1   145,127   24,000 
Aug-06 2340 Dulles Corner Boulevard Herndon, VA  1   264,405   79,000 
Aug-06 2355 Dulles Corner Boulevard Herndon, VA  1   179,176   55,000 
Nov-06 2251 Corporate Park Drive Herndon, VA  1   158,016   59,000 
              
  Total Office Properties Acquired    84   14,883,030  $2,928,802 
              
                 
Land Parcels:
                
Mar-06 101-103 Juniper Street (parking garage) Philadelphia, PA        $2,250 
Apr-06 Bishops Gate South Mount Laurel, NJ      47.9   6,700 
Apr-06 Gradyville Road Newtown (Delaware County), PA      5.5   1,900 
Jun-06 West Creek Land Goochland County, VA      23.2   4,636 
Oct-06 Rob Roy Land Austin, TX      16.8   2,475 
               
  Total Land Acquired        93.4  $17,961 
               
                 
Month of     # of  Rentable Square  Purchase 
Acquisition Property/Portfolio Name Location Buildings  Feet/ Acres  Price 
              (in 000’s) 
Office:                
 
Mar-07 Brandywine Office Investors, L.P. Various  10   1,098,340  $63,731 
May-07 155 Grand Avenue Oakland, CA  1   204,278   72,000 
Jul-07 The Boulders Richmond, VA  5   508,607   95,000 
Jul-07 Post Office/IRS Philadelphia, PA  1   862,692   28,000 
Jul-07 Cira South Garage Philadelphia, PA     733,000   (a)
              
  Total Office Properties Acquired    17   3,406,917  $258,731 
              
                 
Land Parcels:                
Jul-07 Boulders land Richmond, VA      4.9   1,250 
              
  Total Land Acquired        4.9  $1,250 
              

-22-


(a)Property to be constructed by us on land subject to a ground lease
The purchase prices above do not include transaction costs, excluding the Prentiss properties.costs.
Development Properties Placed in Service
We placed in service the following properties during the year ended December 31, 2006:2007:
                        
Month Placed # of Rentable # of Rentable 
in Service Property/Portfolio Name Location Buildings Square Feet Property/Portfolio Name Location Buildings Square Feet 
Office:
          
Nov-06 Cira Centre Philadelphia, PA 1 731,852 
     
Jun-07 555 Lancaster Avenue Radnor, PA 1 242,099 
Sep-07 150 Radnor Chester Road Radnor, PA 1 339,198 
Sep-07 170 Radnor Chester Road Radnor, PA 1 69,787 
Sep-07 Three Paragon Place Richmond, VA 1 74,604 
Dec-07 130 Radnor Chester Road Radnor, PA 1 71,349 
Dec-06 855 Springdale Drive West Whiteland, PA 1 52,500  201 King of Prussia Road Radnor, PA 1 251,372 
                  
 Total Properties Placed in Service   2 784,352  Total Properties Placed in Service   6 1,048,409 
                  
We place a property under development in service on the earlier of (i) once a property reaches 95% occupancy orand (ii) one year after the completion of shell construction, whichever is earlier.construction.

-23--24-


Property Sales
We sold the following properties during the year ended December 31, 2006:2007:
                 
Month of     # of  Rentable Square  Sales 
Sale Property/Portfolio Name Location Bldgs.  Feet/ Acres  Price 
              (in 000’s) 
Office:
                
Jan-06 850/950 Warrenville Road Chicago, IL  2   99,470  $15,250 
Feb-06 550/650 Warrenville Road Chicago, IL  2   169,115   22,250 
Feb-06 1050 Warrenville Road Chicago, IL  1   53,982   3,500 
Feb-06 701 Warrenville Road Chicago, IL  1   68,046   9,500 
Feb-06 801 Cherry Street Fort Worth, TX  1   1,025,601   172,000 
Mar-06 8755 W. Higgins Road Chicago, IL  1   237,320   30,000 
Jun-06 505 Millenium Drive Allen, TX  1   98,586   5,943 
Jul-06 110 Summit Drive Exton, PA  1   43,660   3,690 
Aug-06 8144 Walnut Hill Lane Dallas, TX  1   464,470   63,300 
Aug-06 111 Presidential Boulevard Bala Cynwyd, PA  1   172,894   34,868 
Aug-06 2200 Cabot Drive Lisle, IL  1   124,327   24,250 
Nov-06 King & Harvard Drive Cherry Hill, NJ  1   67,444   6,600 
Nov-06 One South Union Avenue Cherry Hill, NJ  1   99,573   11,000 
Nov-06 1255 Corporate Drive Irving, TX  1   150,019   20,200 
Dec-06 2110 Walnut Hill Lane Irving, TX  3   164,782   11,825 
Dec-06 105/140 Terry Drive Newtown (Bucks County), PA  2   128,666   16,150 
Dec-06 3890 West Northwest Highway Dallas, TX  1   126,132   11,000 
Dec-06 3860 West Northwest Highway Dallas, TX  1   70,128   6,000 
              
  Total Office Properties Sold    23   3,364,215  $467,326 
              
                 
Land Parcels:
                
Apr-06 Radnor Chester Road Radnor, PA      1.3  $4,500 
Jun-06 Highland Drive Westampton, NJ      5.5   427 
Aug-06 Natomas Land Sacramento, CA      10.9   5,223 
Dec-06 Newtown Land Newtown (Bucks County), PA      59.0   19,000 
               
  Total Land Sold        76.7  $29,150 
               
                 
Month of     # of  Rentable Square  Sales 
Sale Property/Portfolio Name Location Bldgs.  Feet/ Acres  Price 
              (in 000’s) 
Office:
                
                 
Jan-07 Norriton Office Center East Norriton, PA  1   73,394  $7,785 
Jan-07 Park West Dallas, TX  4   1,091,186   105,000 
Jan-07 George Kachel Farmhouse Reading, PA  1   1,664   245 
Mar-07 Reading/Harrisburg Reading and Harrisburg, PA  10   940,486   112,000 
Mar-07 1007 Laurel Oak Voorhees, NJ  1   78,205   7,000 
Apr-07 Cityplace Dallas, TX  1   1,295,832   115,000 
Nov-07 2490 Boulevard of the Generals West Norriton, PA  1   20,600   1,458 
Nov-07 111/113 Pencader Drive Newark, DE  1   52,665   5,135 
Dec-07 G&I VI Interchange Office, LLC Various  29   1,616,227   242,150 
              
  Total Office Properties Sold    49   5,170,259  $595,773 
             
                 
Land Parcels:
                
Jan-07 Park West Land Dallas, TX      4.7  $2,100 
Sep-07 Iron Run Land Parcels Lehigh County, PA      51.5   6,600 
               
  Total Land Sold        56.2  $8,700 
               
Properties
As of December 31, 2006,2007, we owned 261216 office properties, 23 industrial facilities and one mixed-use property that contain an aggregate of approximately 28.224.9 million net rentable square feet. We also have 6seven properties under development 3and seven properties under redevelopment and 4 lease-up properties containing an aggregate 2.13.7 million net rentable square feet. The properties are located in and surrounding Philadelphia, PA, Wilmington, DE, Southern and Central New Jersey, Richmond, VA, Metropolitan Washington, D.C., Dallas/Fort Worth, Austin, TX, and Oakland San Diego and Los Angeles.Rancho Bernardo, CA. As of December 31, 2006,2007, the Properties were approximately 91.5%93.9% occupied by 1,6231,650 tenants and had an average age of approximately 17.8 years. The office properties are primarily two to three story suburban office buildings containing an average of approximately 108,019109,857 net rentable square feet. The industrial properties accommodate a variety of tenant uses, including light manufacturing, assembly, distribution and warehousing. We carry comprehensive liability, fire, extended coverage and rental loss insurance covering all of the Properties, with policy specifications and insured limits which we believe are adequate.

-24-


We had the following projects in development or redevelopment as of December 31, 2006:2007:

-25-


                          
 %   %   
 Leased Projected Leased Projected 
 Rentable as of In-Service Rentable as of In-Service 
Project Name Location Square Feet 12/31/06 Date (a) Location Square Feet 12/31/07 Date (a) 
Under Development:
        
Three Paragon Richmond, VA 72,561  71% Jun-07
Metroplex Plymouth Meeting, PA 120,877  0% Apr-08
     
South Lake at Dulles Corner Herndon, VA 267,350 0.0% Q4’09 
Park on Barton Creek Austin, TX 213,255 30.7% Q2’09 
Metroplex I Plymouth Meeting, PA 120,877  9.3% Q1’09 
1200 Lenox Drive Lawrenceville, NJ 71,250  0% Apr-08 Lawrenceville, NJ 71,250  0.0% Q1’09 
Park on Barton Creek Austin, TX 213,255  0% Jun-08
2150 Franklin Oakland, CA 215,000  0% Oct-08
South Lake at Dulles Herndon, VA 267,350  0% Aug-08
2100 Franklin Oakland, CA 213,905 0.0% Q1’09 
Post Office/IRS Philadelphia, PA 862,692  100.0% Q3’10 
Cira South Garage Philadelphia, PA 733,000  66.7% Q3’10 
          
   960,293    2,482,329 
          
        
Under Redevelopment:
        
555 East Lancaster Avenue Radnor, PA 242,032  92%(b) May-07
500 Office Center Drive Fort Washington, PA 104,303  36% Oct-07
100 Lenox Drive Lawrenceville, NJ 92,980  0% May-08 Lawrenceville, NJ 92,980  0.0% Q2’09 
Atrium I Mount Laurel, NJ 97,158  50.9% Q4’08 
One Rockledge Associates Bethesda, MD 160,173  57.0% Q1’09 
Delaware Corporate Center II Wilmington, DE 95,514  67.4% Q3’08 
Radnor Corporate Center I Radnor, PA 190,219  65.9% Q1’09 
1333 Broadway Oakland, CA 239,830  72.5% Q1’09 
300 Delaware Avenue Wilmington, DE 298,071  78.0% Q2’09 
          
   439,315    1,173,945 
          
   1,399,608    3,656,274 
          
 
(a) Projected in-service date represents the earlier of (i) the date at which the property is estimated to be 95% occupied or (ii) one year from the project completion date.
(b)Includes the portion of the building we occupied in the second quarter of 2006.
As of December 31, 2006,2007, the above nine14 projects accounted for $141.2$249.8 million of the $217.9$402.3 million of construction in process on our consolidated balance sheet.
As of December 31, 2006,2007, we expect our total investment indevelopment cost for these nine14 projects, including an estimate of the tenant improvement costs, to be approximately $304.3$718.3 million.
The following table sets forth information with respect to our operating properties at December 31, 2006:

-25-


                         
                      Average
                  Total Base Rent Annualized
          Net Percentage for the Twelve Rental Rate
        Year Rentable Leased as of Months Ended as of
        Built/ Square December 31, December 31, December 31,
Property Name   Location State Renovated Feet 2006 (a) 2006 (b) (000’s) 2006 (c)
CALIFORNIA NORTH SEGMENT
                        
1 Kaiser Plaza   Oakland CA 1970  530,887   98.1% $16,028  $34.34 
2101 Webster Street   Oakland CA 1985  464,424   93.2%  11,538   29.01 
1901 Harrison Street   Oakland CA 1985  272,100   95.3%  7,565   32.05 
1220 Concord Avenue   Concord CA 1984  175,153   100.0%  2,944   22.06 
1200 Concord Avenue   Concord CA 1984  175,103   100.0%  4,161   24.47 
                         
MID-ATLANTIC REGION SEGMENT
                        
7101 Wisconsin Avenue   Bethesda MD 1975  223,054   76.1%  4,640   21.88 
6600 Rockledge Drive (d) Bethesda MD 1981  156,325   100.0%  4,993   36.27 
2273 Research Boulevard   Rockville MD 1999  147,689   85.0%  2,751   24.53 
2275 Research Boulevard   Rockville MD 1990  147,267   91.2%  2,993   23.17 
2277 Research Boulevard   Rockville MD 1986  137,045   100.0%  3,012   24.29 
11720 Beltsville Drive   Beltsville MD 1987  132,252   58.8%  875   17.72 
7735 Old Georgetown Road   Bethesda MD 1964/1997  124,480   98.4%  3,233   30.38 
11700 Beltsville Drive   Beltsville MD 1981  95,983   71.1%  1,517   21.75 
11710 Beltsville Drive   Beltsville MD 1987  77,869   80.0%  1,586   25.05 
11740 Beltsville Drive   Beltsville MD 1987  6,783   100.0%  160   26.41 
1676 International Drive   McLean VA 1999  299,413   100.0%  9,152   31.59 
2340 Dulles Corner Boulevard   Herndon VA 1987  264,405   96.8%  2,443   26.04 
1900 Gallows Road   Vienna VA 1989  202,684   100.0%  4,244   23.65 
3130 Fairview Park Drive   Falls Church VA 1999  183,111   72.4%  5,213   30.96 
3141 Fairview Park Drive   Falls Church VA 1988  180,041   92.9%  3,886   24.36 
2355 Dulles Corner Boulevard   Herndon VA 1988  179,074   98.7%  1,311   15.63 
2411 Dulles Corner Park   Herndon VA 1990  177,072   95.4%  5,078   30.10 
1880 Campus Commons Drive   Reston VA 1985  172,448   100.0%  3,110   19.78 
2121 Cooperative Way   Herndon VA 2000  161,274   100.0%  4,435   27.74 
8260 Greensboro Drive   McLean VA 1980  161,229   93.3%  3,667   25.03 
2251 Corporate Park Drive   Herndon VA 2000  158,016   100.0%  664   32.93 
13880 Dulles Corner Lane   Herndon VA 1997  151,747   100.0%  4,686   30.83 
8521 Leesburg Pike   Vienna VA 1984  150,919   92.2%  3,161   24.54 
12015 Lee Jackson Memorial Highway   Fairfax VA 1985  150,432   92.7%  3,335   24.52 
2201 Cooperative Way   Herndon VA 1990  138,545   100.0%  3,829   28.41 
11781 Lee Jackson Memorial Highway   Fairfax VA 1982  127,227   96.8%  3,048   24.26 
13825 Sunrise Valley Drive   Herndon VA 1989  104,466   100.0%  2,484   24.67 
4401 Fair Lakes Court   Fairfax VA 1988  55,972   98.7%  1,573   24.13 
                         
PENNSYLVANIA NORTH SEGMENT
                        
100-300 Gundy Drive   Reading PA 1970  452,902   100.0%  7,222   15.64 
401 Plymouth Road   Plymouth Meeting PA 2001  201,528   100.0%  5,880   27.08 
300 Corporate Center Drive   Camp Hill PA 1989  175,280   91.3%  1,920   10.23 
7535 Windsor Drive   Allentown PA 1988/2004  132,375   76.0%  1,372   16.01 
100 Kachel Blvd   Reading PA 1970  131,082   100.0%  2,960   21.45 
501 Office Center Drive   Fort Washington PA 1974/2005  114,795   98.0%  2,340   20.83 
7130 Ambassador Drive (f) Allentown PA 1991  114,049   100.0%  430   3.76 
7350 Tilghman Street   Allentown PA 1987  111,500   100.0%  1,983   20.11 
7450 Tilghman Street   Allentown PA 1986  100,000   100.0%  1,545   18.02 
2007:

-26-


                         
                      Average
                  Total Base Rent Annualized
          Net Percentage for the Twelve Rental Rate
        Year Rentable Leased as of Months Ended as of
        Built/ Square December 31, December 31, December 31,
Property Name   Location State Renovated Feet 2006 (a) 2006 (b) (000’s) 2006 (c)
620 West Germantown Pike   Plymouth Meeting PA 1990  90,175   89.3%  1,772   27.91 
610 West Germantown Pike   Plymouth Meeting PA 1987  90,152   100.0%  2,406   30.12 
630 West Germantown Pike   Plymouth Meeting PA 1988  89,925   88.8%  1,768   24.05 
600 West Germantown Pike   Plymouth Meeting PA 1986  89,681   97.4%  2,237   20.77 
3331 Street Road -Greenwood Square   Bensalem PA 1986  81,575   98.8%  1,447   20.45 
One Progress Drive   Horsham PA 1986  79,204   100.0%  848   13.40 
323 Norristown Road   Lower Gwyned PA 1988  76,287   100.0%  1,447   19.16 
160 - 180 West Germantown Pike   East Norriton PA 1982  73,394   69.4%  902   17.15 
500 Enterprise Road   Horsham PA 1990  66,751   100.0%  506   13.53 
925 Harvest Drive   Blue Bell PA 1990  62,957   100.0%  1,060   19.22 
980 Harvest Drive   Blue Bell PA 1988  62,379   100.0%  1,317   21.32 
3329 Street Road -Greenwood Square   Bensalem PA 1985  60,705   100.0%  1,146   21.02 
200 Corporate Center Drive   Camp Hill PA 1989  60,000   100.0%  1,051   17.23 
321 Norristown Road   Lower Gwyned PA 1971  59,994   95.0%  1,056   19.22 
520 Virginia Drive   Fort Washington PA 1987  56,454   100.0%      
910 Harvest Drive   Blue Bell PA 1990  52,611   100.0%  704   13.72 
2240/50 Butler Pike   Plymouth Meeting PA 1984  52,229   100.0%  1,119   20.96 
920 Harvest Drive   Blue Bell PA 1990  51,894   77.8%  554   17.71 
1155 Business Center Drive   Horsham PA 1990  51,388   94.2%  803   18.55 
800 Business Center Drive   Horsham PA 1986  51,236   100.0%  598   15.71 
7150 Windsor Drive   Allentown PA 1988  49,420   100.0%  542   14.41 
6575 Snowdrift Road   Allentown PA 1988  47,091   100.0%  396   13.31 
220 Commerce Drive   Fort Washington PA 1985  46,080   94.5%  794   21.39 
6990 Snowdrift Road (A)   Allentown PA 2003  44,200   100.0%  763   18.30 
7248 Tilghman Street   Allentown PA 1987  43,782   73.2%  535   17.56 
7360 Windsor Drive   Allentown PA 2001  43,600   100.0%  935   24.41 
300 Welsh Road — Building I   Horsham PA 1980  40,042   100.0%  679   18.65 
7310 Tilghman Street   Allentown PA 1985  40,000   83.5%  472   17.73 
150 Corporate Center Drive   Camp Hill PA 1987  39,401   94.1%  703   18.84 
755 Business Center Drive   Horsham PA 1998  38,050   100.0%  576   24.98 
7010 Snowdrift Road   Allentown PA 1991  33,029   60.5%  145   15.67 
2260 Butler Pike   Plymouth Meeting PA 1984  31,892   100.0%  654   14.59 
700 Business Center Drive   Horsham PA 1986  30,773   100.0%  434   14.78 
120 West Germantown Pike   Plymouth Meeting PA 1984  30,574   100.0%  562   20.10 
650 Dresher Road   Horsham PA 1984  30,071   100.0%  684   23.71 
655 Business Center Drive   Horsham PA 1997  29,849   94.3%  399   19.70 
630 Dresher Road   Horsham PA 1987  28,894   100.0%  717   25.95 
6990 Snowdrift Road (B)   Allentown PA 2004  27,900   100.0%  401   17.71 
140 West Germantown Pike   Plymouth Meeting PA 1984  25,357   100.0%  488   23.09 
3333 Street Road -Greenwood Square   Bensalem PA 1988  25,000   100.0%  539   23.89 
800 Corporate Circle Drive   Harrisburg PA 1979  24,862   49.7%  197   17.80 
500 Nationwide Drive   Harrisburg PA 1977  18,027   75.5%  211   18.85 
600 Corporate Circle Drive   Harrisburg PA 1978  17,858   100.0%  287   18.41 
300 Welsh Road — Building II   Horsham PA 1980  17,750   100.0%  333   17.29 
2404 Park Drive   Harrisburg PA 1983  11,000   100.0%  215   19.00 
2401 Park Drive   Harrisburg PA 1984  10,074   100.0%  183   18.74 
                             
                          Average 
                      Total Base Rent  Annualized 
              Net  Percentage  for the Twelve  Rental Rate 
          Year  Rentable  Leased as of  Months Ended  as of 
          Built/  Square  December 31,  December 31,  December 31, 
Property Name Location State  Renovated  Feet  2007 (a)  2007 (b) (000’s)  2007 (c) 
CALIFORNIA NORTH SEGMENT
                            
                             
1 Kaiser Plaza Oakland CA  1970   530,850   94.0% $16,232  $35.04 
2101 Webster Street Oakland CA  1985   464,424   93.7%  12,210   30.86 
1901 Harrison Street Oakland CA  1985   272,100   98.8%  7,622   33.12 
155 Grand Avenue Oakland CA  1990   204,278   98.0%  4,088   35.90 
1220 Concord Avenue Concord CA  1984   175,153   100.0%  2,944   22.38 
1200 Concord Avenue Concord CA  1984   175,103   100.0%  4,155   24.99 
                             
CALIFORNIA SOUTH SEGMENT
                            
5780 & 5790 Feet Street Carlsbad CA  1999   121,381   94.2%  3,284   31.94 
5900 & 5950 La Place Court Carlsbad CA  1988   80,506   96.4%  1,881   24.26 
16870 West Bernardo Drive San Diego CA  2002   68,708   82.4%  2,032   33.63 
5963 La Place Court Carlsbad CA  1987   61,587   65.5%  1,191   25.96 
2035 Corte Del Nogal Carlsbad CA  1991   53,982   100.0%  1,158   23.26 
5973 Avendia Encinas Carlsbad CA  1986   51,695   100.0%  1,373   27.25 
                             
METROPOLITAN WASHINGTON D.C. REGION SEGMENT
                            
7101 Wisconsin Avenue Bethesda MD  1975   223,054   95.4%  5,073   26.54 
2273 Research Boulevard Rockville MD  1999   147,689   98.4%  3,967   26.28 
2275 Research Boulevard Rockville MD  1990   147,650   88.6%  3,545   13.10 
2277 Research Boulevard Rockville MD  1986   137,045   100.0%  3,099    
11720 Beltsville Drive Beltsville MD  1987   128,903   78.6%  2,013   19.70 
7735 Old Georgetown Road Bethesda MD  1964/1997   122,543   95.0%  3,168   31.07 
11700 Beltsville Drive Beltsville MD  1981   96,843   68.6%  1,431   21.59 
11710 Beltsville Drive Beltsville MD  1987   81,281   67.6%  860   23.52 
11740 Beltsville Drive Beltsville MD  1987   6,783   100.0%  153   22.76 
1676 International Drive McLean VA  1999   299,388   100.0%  9,283   33.01 
2340 Dulles Corner Boulevard Herndon VA  1987   264,405   100.0%  7,954   28.01 
2291 Wood Oak Drive Herndon VA  1999   227,574   100.0%  5,326   28.89 
1900 Gallows Road Vienna VA  1989   202,684   100.0%  4,244   23.99 
3130 Fairview Park Drive Falls Church VA  1999   180,645   73.7%  4,335   35.27 
3141 Fairview Park Drive Falls Church VA  1988   180,611   96.9%  4,458   25.65 
2355 Dulles Corner Boulevard Herndon VA  1988   179,334   99.4%  4,432   24.43 
2411 Dulles Corner Park Herndon VA  1990   176,618   100.0%  5,342   27.86 
1880 Campus Commons Drive Reston VA  1985   172,448   100.0%  3,112   20.57 
2121 Cooperative Way Herndon VA  2000   161,274   91.4%  4,329   28.45 
8260 Greensboro Drive McLean VA  1980   159,498   100.0%  3,722   24.64 
2251 Corporate Park Drive Herndon VA  2000   158,016   100.0%  5,425   35.44 
12015 Lee Jackson Memorial Highway Fairfax VA  1985   153,255   97.1%  3,478   24.50 
13880 Dulles Corner Lane Herndon VA  1997   151,747   100.0%  4,686   32.55 
8521 Leesburg Pike Vienna VA  1984   149,743   97.9%  3,236   25.88 
2201 Cooperative Way Herndon VA  1990   138,806   100.0%  3,829   29.84 
11781 Lee Jackson Memorial Highway Fairfax VA  1982   130,935   96.1%  3,021   23.54 
13825 Sunrise Valley Drive Herndon VA  1989   104,150   100.0%  2,484   25.99 
198 Van Buren Street Herndon VA  1996   98,934   100.0%  2,677   28.63 
196 Van Buren Street Herndon VA  1991   97,781   66.6%  1,885   29.68 
4401 Fair Lakes Court Fairfax VA  1988   55,972   89.1%  1,314   25.15 

-27-


                                             
 Average Average 
 Total Base Rent Annualized Total Base Rent Annualized 
 Net Percentage for the Twelve Rental Rate Net Percentage for the Twelve Rental Rate 
 Year Rentable Leased as of Months Ended as of Year Rentable Leased as of Months Ended as of 
 Built/ Square December 31, December 31, December 31, Built/ Square December 31, December 31, December 31, 
Property Name Location State Renovated Feet 2006 (a) 2006 (b) (000’s) 2006 (c) Location State Renovated Feet 2007 (a) 2007 (b) (000’s) 2007 (c) 
George Kachel Farmhouse   Reading PA 2000 1,664  0.0%   
PENNSYLVANIA WEST SEGMENT
         
PENNSYLVANIA SEGMENT
 
2929 Arch Street (d) Philadelphia PA 2006 729,897  99.3% 24,029 32.98 
100 North 18th Street  (e) Philadelphia PA 1988 702,286  98.7% 20,596 30.37 
130 North 18th Street Philadelphia PA 1998 594,361  98.5% 12,706 27.23 
150 Radnor Chester Road Radnor PA 1983 339,198  100.0% 7,999 18.94 
201 King of Prussia Road Radnor PA 2001 251,372  84.1% 5,066 23.83 
555 Lancaster Avenue Radnor PA 1973 242,099  99.5% 6,067 27.99 
401 Plymouth Road Plymouth Meeting PA 2001 201,883  96.9% 6,123 31.50 
Philadelphia Marine Center  (d) Philadelphia PA Various 181,900  91.2% 1,479 4.56 
101 West Elm Street   W. Conshohocken PA 1999 185,774  77.2% 3,371 25.18  W. Conshohocken PA 1999 175,009  95.8% 3,805 23.74 
One Radnor Corporate Center   Radnor PA 1998 185,166  65.9% 4,743 31.86 
Four Radnor Corporate Center   Radnor PA 1995 165,138  78.5% 2,988 21.02  Radnor PA 1995 165,138  93.3% 2,944 21.74 
Five Radnor Corporate Center   Radnor PA 1998 164,577  91.9% 4,755 32.70  Radnor PA 1998 164,577  83.1% 4,417 30.85 
751-761 Fifth Avenue   King Of Prussia PA 1967 158,000  100.0% 532 3.39  King Of Prussia PA 1967 158,000  100.0% 543 3.64 
630 Allendale Road   King of Prussia PA 2000 150,000  100.0% 3,722 25.40  King of Prussia PA 2000 150,000  100.0% 3,722 26.04 
640 Freedom Business Center (d) King Of Prussia PA 1991 132,000  84.1% 2,796 25.65   (d) King Of Prussia PA 1991 132,000  65.3% 1,757 23.37 
52 Swedesford Square   East Whiteland Twp. PA 1988 131,017  100.0% 2,677 21.18  East Whiteland Twp. PA 1988 131,017  100.0% 2,806 23.10 
400 Berwyn Park   Berwyn PA 1999 124,182  100.0% 3,256 26.72  Berwyn PA 1999 124,182  100.0% 3,267 27.45 
Three Radnor Corporate Center   Radnor PA 1998 119,194  80.0% 2,635 28.38  Radnor PA 1998 119,194  77.6% 2,857 32.96 
101 Lindenwood Drive   Malvern PA 1988 118,121  100.0% 2,114 19.36  Malvern PA 1988 118,121  85.5% 2,337 21.02 
7130 Ambassador Drive  (f) Allentown PA 1991 114,049  100.0% 430 5.27 
300 Berwyn Park   Berwyn PA 1989 109,919  98.8% 2,180 24.12  Berwyn PA 1989 108,619  100.0% 2,242 23.56 
442 Creamery Way (f) Exton PA 1991 104,500  100.0% 598 6.28   (f) Exton PA 1991 104,500  100.0% 598 6.71 
Two Radnor Corporate Center   Radnor PA 1998 100,973  69.0% 2,156 30.10  Radnor PA 1998 100,973  91.4% 2,498 30.99 
301 Lindenwood Drive   Malvern PA 1984 97,813  99.3% 1,766 18.63  Malvern PA 1984 97,813  97.3% 1,907 20.64 
1 West Elm Street   W. Conshohocken PA 1999 97,737  100.0% 2,744 28.44  W. Conshohocken PA 1999 97,737  79.7% 2,744 26.91 
555 Croton Road   King of Prussia PA 1999 96,909  100.0% 2,696 29.74  King of Prussia PA 1999 96,909  79.4% 2,226 31.51 
500 North Gulph Road   King Of Prussia PA 1979 93,082  80.8% 2,184 19.09  King Of Prussia PA 1979 93,082  76.5% 838 18.26 
620 West Germantown Pike Plymouth Meeting PA 1990 90,183  87.1% 1,795 27.68 
610 West Germantown Pike Plymouth Meeting PA 1987 90,152  91.1% 1,610 28.41 
630 West Germantown Pike Plymouth Meeting PA 1988 89,925  56.5% 1,428 28.04 
600 West Germantown Pike Plymouth Meeting PA 1986 89,681  83.3% 1,795 26.02 
630 Freedom Business Center (d) King Of Prussia PA 1989 86,683  97.0% 1,986 25.71   (d) King Of Prussia PA 1989 86,683  100.0% 1,966 25.48 
620 Freedom Business Center (d) King Of Prussia PA 1986 86,570  100.0% 1,569 16.93   (d) King Of Prussia PA 1986 86,570  100.0% 1,760 22.50 
1200 Swedsford Road   Berwyn PA 1994 86,000  100.0% 2,111 26.99  Berwyn PA 1994 86,000  100.0% 1,785 24.75 
595 East Swedesford Road   Wayne PA 1998 81,890  100.0% 1,573 21.35  Wayne PA 1998 81,890  100.0% 1,750 21.84 
1050 Westlakes Drive   Berwyn PA 1984 80,000  100.0% 719   Berwyn PA 1984 80,000  100.0% 1,818  
One Progress Drive Horsham PA 1986 79,204  100.0% 841 13.45 
1060 First Avenue   King Of Prussia PA 1987 77,718  90.6% 1,380 22.03  King Of Prussia PA 1987 77,718  73.2% 1,383 18.48 
741 First Avenue   King Of Prussia PA 1966 77,184  100.0% 580 8.85  King Of Prussia PA 1966 77,184  100.0% 580 8.89 
1040 First Avenue   King Of Prussia PA 1985 75,488  93.6% 1,321 21.97  King Of Prussia PA 1985 75,488  78.7% 1,416 21.99 
200 Berwyn Park   Berwyn PA 1987 75,025  100.0% 1,574 23.40  Berwyn PA 1987 75,025  100.0% 1,585 24.10 
1020 First Avenue   King Of Prussia PA 1984 74,556  100.0% 1,639 23.37  King Of Prussia PA 1984 74,556  100.0% 1,608 19.25 
1000 First Avenue   King Of Prussia PA 1980 74,139  56.8% 921 23.38  King Of Prussia PA 1980 74,139  87.7% 1,057 20.17 
436 Creamery Way   Exton PA 1991 72,300  87.8% 616 13.53  Exton PA 1991 72,300  96.2% 679 14.30 
130 Radnor Chester Road Radnor PA 1983 71,349  100.0% 583  
170 Radnor Chester Road Radnor PA 1983 69,787  92.6% 1,560 17.98 
14 Campus Boulevard   Newtown Square PA 1998 69,542  100.0% 1,466 25.83  Newtown Square PA 1998 69,542  100.0% 832  
500 Enterprise Road Horsham PA 1990 66,751  0.0% 495  
575 East Swedesford Road   Wayne PA 1985 66,265  100.0% 1,251 21.43  Wayne PA 1985 66,265  89.8% 1,168 22.79 
429 Creamery Way   Exton PA 1996 63,420  100.0% 777 14.94  Exton PA 1996 63,420  100.0% 790 16.49 
610 Freedom Business Center (d) King Of Prussia PA 1985 62,991  100.0% 1,420 26.90 
426 Lancaster Avenue   Devon PA 1990 61,102  100.0% 1,213 17.63 
1180 Swedesford Road   Berwyn PA 1987 60,371  100.0% 1,847 32.05 
1160 Swedesford Road   Berwyn PA 1986 60,099  100.0% 1,413 24.49 
100 Berwyn Park   Berwyn PA 1986 57,731  98.0% 1,087 22.66 
440 Creamery Way   Exton PA 1991 57,218  100.0% 446 7.78 
640 Allendale Road (f) King of Prussia PA 2000 56,034  100.0% 350 7.83 
565 East Swedesford Road   Wayne PA 1984 55,979  100.0% 1,010 19.95 
650 Park Avenue   King Of Prussia PA 1968 54,338  97.1% 796 15.36 
855 Springdale Drive   Exton PA 1986 53,500  33.3% 44  

-28-


                                                      
 Average Average 
 Total Base Rent Annualized Total Base Rent Annualized 
 Net Percentage for the Twelve Rental Rate Net Percentage for the Twelve Rental Rate 
 Year Rentable Leased as of Months Ended as of Year Rentable Leased as of Months Ended as of 
 Built/ Square December 31, December 31, December 31, Built/ Square December 31, December 31, December 31, 
Property Name Location State Renovated Feet 2006 (a) 2006 (b) (000’s) 2006 (c) Location State Renovated Feet 2007 (a) 2007 (b) (000’s) 2007 (c) 
610 Freedom Business Center  (d) King Of Prussia PA 1985 62,991  54.9% 1,386 22.23 
925 Harvest Drive Blue Bell PA 1990 62,957  96.1% 1,207 21.30 
980 Harvest Drive Blue Bell PA 1988 62,379  100.0% 1,383 23.19 
426 Lancaster Avenue Devon PA 1990 61,102  100.0% 1,213 18.48 
1180 Swedesford Road Berwyn PA 1987 60,371  100.0% 1,847 32.41 
1160 Swedesford Road Berwyn PA 1986 60,099  100.0% 1,451 25.04 
100 Berwyn Park Berwyn PA 1986 57,731  100.0% 1,103 22.95 
440 Creamery Way Exton PA 1991 57,218  100.0% 648 14.10 
640 Allendale Road  (f) King of Prussia PA 2000 56,034  100.0% 350 8.01 
565 East Swedesford Road Wayne PA 1984 55,979  98.6% 985 20.44 
650 Park Avenue King Of Prussia PA 1968 54,338  97.1% 796 16.08 
855 Springdale Drive Exton PA 1986 53,500  73.5% 324 16.71 
910 Harvest Drive Blue Bell PA 1990 52,611  100.0% 1,040 19.11 
680 Allendale Road   King Of Prussia PA 1962 52,528  100.0% 544 13.34  King Of Prussia PA 1962 52,528  100.0% 544 13.34 
2240/50 Butler Pike Plymouth Meeting PA 1984 52,229  100.0% 1,119 21.48 
920 Harvest Drive Blue Bell PA 1990 51,875  100.0% 971 19.99 
486 Thomas Jones Way   Exton PA 1990 51,372  81.6% 677 19.83  Exton PA 1990 51,372  92.0% 716 18.77 
660 Allendale Road (f) King of Prussia PA 1962 50,635  100.0% 365 9.17   (f) King of Prussia PA 1962 50,635  100.0% 365 9.45 
875 First Avenue   King of Prussia PA 1966 50,000  100.0% 1,038 21.15  King Of Prussia PA 1966 50,000  100.0% 1,038 21.41 
630 Clark Avenue   King of Prussia PA 1960 50,000  100.0% 301 7.36  King Of Prussia PA 1960 50,000  100.0% 301 8.19 
620 Allendale Road   King of Prussia PA 1961 50,000  100.0% 978 21.38  King Of Prussia PA 1961 50,000  100.0% 988 22.59 
15 Campus Boulevard   Newtown Square PA 2002 49,621  100.0% 991 21.56  Newtown Square PA 2002 49,621  100.0% 1,018 21.77 
479 Thomas Jones Way   Exton PA 1988 49,264  100.0% 765 17.30  Exton PA 1988 49,264  100.0% 795 16.90 
17 Campus Boulevard   Newtown Square PA 2001 48,565  100.0% 1,224 28.52  Newtown Square PA 2001 48,565  100.0% 1,224 28.48 
11 Campus Boulevard   Newtown Square PA 1998 47,700  100.0% 1,064 18.64  Newtown Square PA 1998 47,699  100.0% 1,009 23.62 
456 Creamery Way   Exton PA 1987 47,604  100.0% 364 7.89  Exton PA 1987 47,604  100.0% 363 8.16 
585 East Swedesford Road   Wayne PA 1998 43,683  100.0% 1,018 24.76  Wayne PA 1998 43,683  100.0% 1,001 25.40 
1100 Cassett Road   Berwyn PA 1997 43,480  100.0% 1,106 29.65  Berwyn PA 1997 43,480  100.0% 1,106 29.74 
467 Creamery Way   Exton PA 1988 42,000  100.0% 554 18.20  Exton PA 1988 42,000  77.3% 422 16.70 
1336 Enterprise Drive   West Goshen PA 1989 39,330  100.0% 796 22.43  West Goshen PA 1989 39,330  100.0% 796 23.04 
600 Park Avenue   King of Prussia PA 1964 39,000  100.0% 536 15.02  King Of Prussia PA 1964 39,000  100.0% 545 15.15 
412 Creamery Way   Exton PA 1999 38,098  77.3% 677 23.33  Exton PA 1999 38,098  100.0% 769 22.06 
18 Campus Boulevard   Newtown Square PA 1990 37,374  52.6% 740 21.94  Newtown Square PA 1990 37,374  100.0% 601 22.67 
457 Creamery Way   Exton PA 1990 36,019  100.0% 386 14.70  Exton PA 1990 36,019  100.0% 386 15.85 
100 Arrandale Boulevard   Exton PA 1997 34,931  100.0% 550 20.01  Exton PA 1997 34,931  100.0% 456 15.71 
300 Lindenwood Drive   Malvern PA 1991 33,000  0.0% 376   Malvern PA 1991 33,000  100.0% 216 21.90 
2260 Butler Pike Plymouth Meeting PA 1984 31,892  100.0% 663 21.16 
120 West Germantown Pike Plymouth Meeting PA 1984 30,574  100.0% 459 21.38 
468 Thomas Jones Way   Exton PA 1990 28,934  100.0% 483 18.00  Exton PA 1990 28,934  100.0% 550 18.50 
1700 Paoli Pike   Malvern PA 2000 28,000  100.0% 504 20.65  Malvern PA 2000 28,000  100.0% 505 22.22 
2490 Boulevard of the Generals   King of Prussia PA 1975 20,600  100.0% 434 20.77 
140 West Germantown Pike Plymouth Meeting PA 1984 25,357  89.6% 513 24.22 
481 John Young Way   Exton PA 1997 19,275  100.0% 405 22.50  Exton PA 1997 19,275  100.0% 405 22.88 
100 Lindenwood Drive   Malvern PA 1985 18,400  100.0% 319 19.79  Malvern PA 1985 18,400  100.0% 319 20.38 
748 Springdale Drive   Exton PA 1986 13,950  77.7% 209 18.62  Exton PA 1986 13,950  77.7% 197 19.52 
200 Lindenwood Drive   Malvern PA 1984 12,600  65.3% 148 18.39  Malvern PA 1984 12,600  65.3% 123 19.17 
111 Arrandale Road   Exton PA 1996 10,479  100.0% 196 17.76  Exton PA 1996 10,479  100.0% 198 18.72 
         
NEW JERSEY SEGMENT
         
50 East State Street   Trenton NJ 1989 305,884  91.3% 5,278 29.88 
1009 Lenox Drive   Lawrenceville NJ 1989 180,460  89.8% 3,777 28.42 
10000 Midlantic Drive   Mt. Laurel NJ 1990 179,098  90.0% 2,727 22.82 
33 West State Street   Trenton NJ 1988 167,774  99.6% 2,987 31.17 
525 Lincoln Drive West   Marlton NJ 1986 165,956  96.7% 2,562 20.28 
Main Street — Plaza 1000   Voorhees NJ 1988 162,364  94.6% 3,247 24.44 
457 Haddonfield Road   Cherry Hill NJ 1990 121,737  100.0% 2,689 24.13 
2000 Midlantic Drive   Mt. Laurel NJ 1989 121,658  100.0% 2,022 24.06 
700 East Gate Drive   Mt. Laurel NJ 1984 119,272  79.2% 2,061 24.45 
2000 Lenox Drive   Lawrenceville NJ 2000 119,114  100.0% 3,208 30.57 
989 Lenox Drive   Lawrenceville NJ 1984 112,055  91.3% 2,734 30.46 
993 Lenox Drive   Lawrenceville NJ 1985 111,124  100.0% 2,882 29.00 
1000 Howard Boulevard   Mt. Laurel NJ 1988 105,312  100.0% 1,934 22.85 
100 Brandywine Boulevard   Newtown PA 2002 102,000  100.0% 2,681 25.73 
997 Lenox Drive   Lawrenceville NJ 1987 97,277  100.0% 2,387 27.27 
1000 Atrium Way   Mt. Laurel NJ 1989 97,158  47.7% 1,020 21.48 

-29-


                                                      
 Average Average 
 Total Base Rent Annualized Total Base Rent Annualized 
 Net Percentage for the Twelve Rental Rate Net Percentage for the Twelve Rental Rate 
 Year Rentable Leased as of Months Ended as of Year Rentable Leased as of Months Ended as of 
 Built/ Square December 31, December 31, December 31, Built/ Square December 31, December 31, December 31, 
Property Name Location State Renovated Feet 2006 (a) 2006 (b) (000’s) 2006 (c) Location State Renovated Feet 2007 (a) 2007 (b) (000’s) 2007 (c) 
NEW JERSEY/DELAWARE SEGMENT
NEW JERSEY/DELAWARE SEGMENT
   
50 East State Street Trenton NJ 1989 305,884  91.3% 5,240 30.51 
10000 Midlantic Drive Mt. Laurel NJ 1990 182,931  96.4% 2,519 24.41 
1009 Lenox Drive Lawrenceville NJ 1989 180,460  92.2% 4,248 29.66 
33 West State Street Trenton NJ 1988 167,774  99.6% 2,976 32.00 
525 Lincoln Drive West Marlton NJ 1986 165,956  95.1% 3,250 24.03 
Main Street — Plaza 1000 Voorhees NJ 1988 162,364  93.9% 3,274 24.87 
457 Haddonfield Road Cherry Hill NJ 1990 121,737  100.0% 2,751 24.89 
2000 Midlantic Drive Mt. Laurel NJ 1989 121,658  100.0% 1,913 24.77 
700 East Gate Drive Mt. Laurel NJ 1984 119,272  93.5% 2,135 25.14 
2000 Lenox Drive Lawrenceville NJ 2000 119,114  100.0% 3,209 31.75 
989 Lenox Drive Lawrenceville NJ 1984 112,055  100.0% 2,626 29.50 
993 Lenox Drive Lawrenceville NJ 1985 111,124  100.0% 2,882 29.84 
1000 Howard Boulevard Mt. Laurel NJ 1988 105,312  100.0%  23.17 
100 Brandywine Boulevard Newtown PA 2002 102,000  100.0% 2,681 26.36 
997 Lenox Drive Lawrenceville NJ 1987 97,277  100.0% 2,390 27.98 
1120 Executive Boulevard   Mt. Laurel NJ 1987 95,278  98.8% 1,503 17.14  Mt. Laurel NJ 1987 95,278  97.4% 1,485 22.28 
15000 Midlantic Drive   Mt. Laurel NJ 1991 84,056  100.0% 1,355 19.75  Mt. Laurel NJ 1991 84,056  100.0% 1,215 20.69 
220 Lake Drive East   Cherry Hill NJ 1988 78,509  76.1% 1,198 22.95  Cherry Hill NJ 1988 78,509  87.3% 1,272 23.69 
1007 Laurel Oak Road   Voorhees NJ 1996 78,205  100.0% 621 7.94 
10 Lake Center Drive   Marlton NJ 1989 76,359  95.2% 1,117 20.10  Marlton NJ 1989 76,359  94.1% 1,339 21.41 
200 Lake Drive East   Cherry Hill NJ 1989 76,352  96.0% 1,609 22.92  Cherry Hill NJ 1989 76,352  88.1% 1,462 25.26 
1400 Howard Boulevard   Mt. Laurel NJ 1995/2005 75,590  100.0% 1,431 23.20  Mt. Laurel NJ 1995/2005 75,590  100.0% 1,431 23.60 
Three Greentree Centre   Marlton NJ 1984 69,300  96.1% 1,313 22.66  Marlton NJ 1984 69,300  98.6% 1,360 24.07 
9000 Midlantic Drive   Mt. Laurel NJ 1989 67,299  100.0% 836 22.86  Mt. Laurel NJ 1989 67,299  100.0% 836 25.27 
6 East Clementon Road   Gibbsboro NJ 1980 66,236  87.1% 981 18.75  Gibbsboro NJ 1980 66,236  87.1% 862 19.22 
701 East Gate Drive   Mt. Laurel NJ 1986 61,794  100.0% 1,280 22.55  Mt. Laurel NJ 1986 61,794  93.5% 1,093 19.99 
210 Lake Drive East   Cherry Hill NJ 1986 60,604  94.2% 1,214 22.25  Cherry Hill NJ 1986 60,604  97.3% 1,218 23.38 
308 Harper Drive   Moorestown NJ 1976 59,500  79.5% 1,001 22.57  Moorestown NJ 1976 59,500  79.5% 935 23.47 
305 Fellowship Drive   Mt. Laurel NJ 1980 56,824  100.0% 1,068 22.14  Mt. Laurel NJ 1980 56,824  100.0% 1,122 23.06 
Two Greentree Centre   Marlton NJ 1983 56,075  69.6% 836 22.86  Marlton NJ 1983 56,075  64.6% 710 22.94 
309 Fellowship Drive   Mt. Laurel NJ 1982 55,911  100.0% 1,217 26.19  Mt. Laurel NJ 1982 55,911  96.9% 1,194 26.82 
One Greentree Centre   Marlton NJ 1982 55,838  95.1% 1,072 20.96  Marlton NJ 1982 55,838  95.4% 1,046 21.63 
8000 Lincoln Drive   Marlton NJ 1997 54,923  100.0% 1,003 18.47  Marlton NJ 1997 54,923  100.0% 1,003 19.30 
307 Fellowship Drive   Mt. Laurel NJ 1981 54,485  93.6% 1,047 24.71  Mt. Laurel NJ 1981 54,485  92.1% 1,020 25.28 
303 Fellowship Drive   Mt. Laurel NJ 1979 53,768  100.0% 1,037 22.43  Mt. Laurel NJ 1979 53,768  90.6% 1,003 23.40 
1000 Bishops Gate   Mt. Laurel NJ 2005 53,281  100.0% 1,167 22.53  Mt. Laurel NJ 2005 53,281  100.0% 1,208 23.51 
1000 Lenox Drive   Lawrenceville NJ 1982 52,264  100.0% 1,329 28.83  Lawrenceville NJ 1982 52,264  100.0% 1,329 29.60 
2 Foster Avenue (f) Gibbsboro NJ 1974 50,761  100.0% 165 5.11   (f) Gibbsboro NJ 1974 50,761  100.0% 167 5.39 
4000 Midlantic Drive   Mt. Laurel NJ 1998 46,945  100.0% 657 22.34  Mt. Laurel NJ 1998 46,945  100.0% 657 23.22 
Five Eves Drive   Marlton NJ 1986 45,564  100.0% 815 19.68  Marlton NJ 1986 45,564  100.0% 828 20.64 
161 Gaither Drive   Mount Laurel NJ 1987 44,739  96.0% 647 16.64  Mount Laurel NJ 1987 44,739  75.1% 484 21.62 
Main Street — Piazza   Voorhees NJ 1990 44,708  97.3% 725 17.92  Voorhees NJ 1990 44,708  89.6% 695 20.56 
30 Lake Center Drive   Marlton NJ 1986 40,287  48.1% 750 22.14  Marlton NJ 1986 40,287  100.0% 526 18.95 
20 East Clementon Road   Gibbsboro NJ 1986 38,260  100.0% 549 17.77 
Two Eves Drive   Marlton NJ 1987 37,532  82.9% 564 17.98 
304 Harper Drive   Moorestown NJ 1975 32,978  97.5% 655 23.39 
Main Street — Promenade   Voorhees NJ 1988 31,445  96.5% 502 17.58 
Four B Eves Drive   Marlton NJ 1987 27,011  82.8% 376 16.59 
815 East Gate Drive   Mt. Laurel NJ 1986 25,500  100.0% 246 11.72 
817 East Gate Drive   Mt. Laurel NJ 1986 25,351  38.5% 142 16.16 
Four A Eves Drive   Marlton NJ 1987 24,687  100.0% 327 15.49 
1 Foster Avenue (f) Gibbsboro NJ 1972 24,255  100.0% 62 4.45 
4 Foster Avenue (f) Gibbsboro NJ 1974 23,372  100.0% 150 8.65 
7 Foster Avenue   Gibbsboro NJ 1983 22,158  100.0% 367 21.19 
10 Foster Avenue   Gibbsboro NJ 1983 18,651  100.0% 259 17.26 
305 Harper Drive   Moorestown NJ 1979 14,980  100.0% 127 9.61 
5 U.S. Avenue (f) Gibbsboro NJ 1987 5,000  100.0% 23 4.40 
50 East Clementon Road   Gibbsboro NJ 1986 3,080  100.0% 145 47.01 
5 Foster Avenue   Gibbsboro NJ 1968 2,000  100.0% 7  
         
SOUTHWEST SEGMENT
         
2711 North Haskell Avenue   Dallas TX 1988 1,303,161  90.4% 19,900 18.65 

-30-


                         
                      Average
                  Total Base Rent Annualized
          Net Percentage for the Twelve Rental Rate
        Year Rentable Leased as of Months Ended as of
        Built/ Square December 31, December 31, December 31,
Property Name   Location State Renovated Feet 2006 (a) 2006 (b) (000’s) 2006 (c)
1501/1503 LBJ Freeway   Dallas TX 1985  355,895   72.1%  4,891   19.60 
1505/1507 LBJ Freeway   Dallas TX 1989  352,177   94.1%  7,414   24.23 
1250 Capital of Texas Highway South   Austin TX 1984  269,321   90.1%  3,232   22.62 
1301 Mopac Expressway   Austin TX 2001  222,581   99.1%  4,441   29.60 
1603 LBJ Freeway   Dallas TX 1985  200,375   69.4%  2,049   12.22 
1601 Mopac Expressway   Austin TX 2000  195,639   100.0%  2,562   25.20 
1501 South Mopac Expressway   Austin TX 1999  195,164   100.0%  3,026   25.76 
1601 LBJ Freeway   Dallas TX 1982  182,739   100.0%  3,085   15.60 
1221 Mopac Expressway   Austin TX 2001  173,302   96.0%  3,541   30.62 
1801 Mopac Expressway   Austin TX 1999  58,576   100.0%  974   29.13 
                         
URBAN SEGMENT
                        
2929 Arch Street   Philadelphia PA 2006  729,723   99.4%  16,653   22.61 
100 North 18th Street (e) Philadelphia PA 1988  701,645   99.1%  20,235   31.52 
130 North 18th Street   Philadelphia PA 1998  594,361   100.0%  12,852   29.54 
Philadelphia Marine Center (d) Philadelphia PA Various  181,900   100.0%  1,491   5.45 
300 Delaware Avenue   Wilmington DE 1989  310,929   79.5%  3,613   15.08 
920 North King Street   Wilmington DE 1989  203,328   100.0%  4,604   24.61 
400 Commerce Drive   Newark DE 1997  154,086   100.0%  2,229   15.82 
One Righter Parkway (d) Wilmington DE 1989  105,237   93.1%  1,719   18.40 
Two Righter Parkway (d) Wilmington DE 1987  95,514   0.0%  1,759    
200 Commerce Drive   Newark DE 1998  68,034   100.0%  1,327   18.51 
100 Commerce Drive   Newark DE 1989  62,787   99.8%  1,106   15.35 
111/113 Pencader Drive   Newark DE 1990  52,665   100.0%  505   12.73 
                         
VIRGINIA SEGMENT
                        
600 East Main Street   Richmond VA 1986  420,575   93.8%  6,957   19.14 
300 Arboretum Place   Richmond VA 1988  212,647   100.0%  3,822   18.97 
6800 Paragon Place   Richmond VA 1986  145,127   98.9%  2,075   19.22 
6802 Paragon Place   Richmond VA 1989  143,585   87.4%  2,311   18.07 
2511 Brittons Hill Road (f) Richmond VA 1987  132,548   100.0%  673   6.20 
2100-2116 West Laburnam Avenue   Richmond VA 1976  127,287   95.6%  1,929   16.01 
1957 Westmoreland Street (f) Richmond VA 1975  121,815   100.0%  656   8.25 
2201-2245 Tomlynn Street (f) Richmond VA 1989  85,860   100.0%  543   5.30 
100 Gateway Centre Parkway   Richmond VA 2001  74,585   0.0%  1,348    
9011 Arboretum Parkway   Richmond VA 1991  72,949   98.0%  1,225   17.52 
4805 Lake Brooke Drive   Glen Allen VA 1996  61,347   94.8%  878   15.50 
9100 Arboretum Parkway   Richmond VA 1988  57,838   100.0%  1,005   19.02 
2812 Emerywood Parkway   Henrico VA 1980  56,984   100.0%  841   15.49 
2277 Dabney Road (f) Richmond VA 1986  50,400   100.0%  267   7.28 
9200 Arboretum Parkway   Richmond VA 1988  49,542   71.4%  523   14.06 
9210 Arboretum Parkway   Richmond VA 1988  48,012   100.0%  670   13.85 
2212-2224 Tomlynn Street (f) Richmond VA 1985  45,353   100.0%  215   6.91 
2221-2245 Dabney Road (f) Richmond VA 1994  45,250   100.0%  274   8.28 
2251 Dabney Road (f) Richmond VA 1983  42,000   100.0%  183   5.85 
2161-2179 Tomlynn Street (f) Richmond VA 1985  41,550   100.0%  245   7.95 
2256 Dabney Road (f) Richmond VA 1982  33,600   86.0%  185   7.85 
                                 
                              Average 
                          Total Base Rent  Annualized 
                  Net  Percentage  for the Twelve  Rental Rate 
              Year Rentable  Leased as of  Months Ended  as of 
              Built/ Square  December 31,  December 31,  December 31, 
Property Name     Location State  Renovated Feet  2007 (a)  2007 (b) (000’s)  2007 (c) 
20 East Clementon Road Name     Gibbsboro NJ  1986   38,260   93.5%  540   16.13 
Two Eves Drive     Marlton NJ  1987   37,532   88.3%  568   19.18 
304 Harper Drive     Moorestown NJ  1975   32,978   100.0%  686   24.51 
Main Street — Promenade     Voorhees NJ  1988   31,445   86.8%  442   19.22 
Four B Eves Drive     Marlton NJ  1987   27,011   99.4%  395   16.63 
815 East Gate Drive     Mt. Laurel NJ  1986   25,500   100.0%  240   17.80 
817 East Gate Drive     Mt. Laurel NJ  1986   25,351   78.5%  142   15.73 
Four A Eves Drive     Marlton NJ  1987   24,687   100.0%  361   16.28 
1 Foster Avenue  (f) Gibbsboro NJ  1972   24,255   100.0%  62   4.75 
4 Foster Avenue  (f) Gibbsboro NJ  1974   23,372   100.0%  156   9.19 
7 Foster Avenue     Gibbsboro NJ  1983   22,158   100.0%  387   22.23 
10 Foster Avenue     Gibbsboro NJ  1983   18,651   92.9%  249   18.12 
305 Harper Drive     Moorestown NJ  1979   14,980   100.0%  127   9.85 
5 U.S. Avenue  (f) Gibbsboro NJ  1987   5,000   100.0%  24   4.40 
50 East Clementon Road     Gibbsboro NJ  1986   3,080   100.0%  148   56.41 
5 Foster Avenue     Gibbsboro NJ  1968   2,000   100.0%  7    
920 North King Street     Wilmington DE  1989   203,328   96.7%  4,495   25.93 
400 Commerce Drive     Newark DE  1997   154,086   100.0%  2,274   15.07 
One Righter Parkway  (d) Wilmington DE  1989   104,761   98.4%  2,412   22.57 
200 Commerce Drive     Newark DE  1998   68,034   100.0%  1,327   18.95 
100 Commerce Drive     Newark DE  1989   62,787   99.8%  1,190   20.51 
                                 
SOUTHWEST SEGMENT
                                
                                 
1250 Capital of Texas Highway South     Austin TX  1984   269,759   93.3%  3,377   22.52 
1301 Mopac Expressway     Austin TX  2001   222,815   100.0%  4,369   30.45 
1501 South Mopac Expressway     Austin TX  1999   198,872   98.3%  2,782   25.24 
1601 Mopac Expressway     Austin TX  2000   195,639   100.0%  3,032   25.48 
1221 Mopac Expressway     Austin TX  2001   173,302   97.8%  3,440   31.52 
1801 Mopac Expressway     Austin TX  1999   58,576   100.0%  989   29.86 
                                 
RICHMOND, VA SEGMENT
                                
                                 
600 East Main Street     Richmond VA  1986   420,575   92.7%  6,974   19.24 
300 Arboretum Place     Richmond VA  1988   212,647   96.1%  3,801   19.55 
6800 Paragon Place     Richmond VA  1986   145,127   95.7%  2,757   19.85 
6802 Paragon Place     Richmond VA  1989   143,585   100.0%  2,282   16.23 
7501 Boulders View Drive     Richmond VA  1990   136,942   91.5%  1,111   19.90 
2511 Brittons Hill Road  (f) Richmond VA  1987   132,548   100.0%  674   6.40 
2100-2116 West Laburnam Avenue     Richmond VA  1976   127,142   80.7%  1,824   15.49 
1957 Westmoreland Street  (f) Richmond VA  1975   121,815   100.0%  1,102   8.44 
7300 Beaufont Springs Drive     Richmond VA  2000   120,665   100.0%  1,148   19.96 
1025 Boulders Parkway     Richmond VA  1994   93,143   97.9%  808   19.09 
2201-2245 Tomlynn Street  (f) Richmond VA  1989   85,860   89.0%  509   7.92 
7401 Beaufont Springs Drive     Richmond VA  1998   82,639   87.3%  631   19.42 
7325 Beaufont Springs Drive     Richmond VA  1999   75,218   100.0%  682   19.81 
6806 Paragon Place     Richmond VA  2007   74,604   95.9%  1,395   22.17 
100 Gateway Centre Parkway     Richmond VA  2001   74,585   53.6%  12   8.50 
9011 Arboretum Parkway     Richmond VA  1991   73,174   100.0%  1,140   17.88 

-31-


                         
                      Average
                  Total Base Rent Annualized
          Net Percentage for the Twelve Rental Rate
        Year Rentable Leased as of Months Ended as of
        Built/ Square December 31, December 31, December 31,
Property Name   Location State Renovated Feet 2006 (a) 2006 (b) (000’s) 2006 (c)
2246 Dabney Road (f) Richmond VA 1987  33,271   100.0%  280   10.29 
2244 Dabney Road (f) Richmond VA 1993  33,050   100.0%  297   10.53 
9211 Arboretum Parkway   Richmond VA 1991  30,791   100.0%  438   14.23 
2248 Dabney Road (f) Richmond VA 1989  30,184   100.0%  207   8.23 
2130-2146 Tomlynn Street (f) Richmond VA 1988  29,700   100.0%  249   10.66 
2120 Tomlyn Street (f) Richmond VA 1986  23,850   100.0%  142   8.07 
2240 Dabney Road (f) Richmond VA 1984  15,389   100.0%  139   10.88 
4364 South Alston Avenue   Durham NC 1985  56,601   100.0%  1,132   20.14 
                         
                         
SUBTOTAL FULLY OWNED PROPERTIES / WEIGHTED AVG.
          28,180,705   93.2%        
                         
1333 Broadway   Oakland CA 1972  238,392   93.7%  5,822   25.94 
5780 & 5790 Feet Street   Carlsbad CA 1999  121,381   97.3%  3,406   32.02 
5900 & 5950 La Place Court   Carlsbad CA 1988  80,506   98.4%  1,675   24.08 
16870 West Bernardo Drive   San Diego CA 2002  68,708   100.0%  2,175   34.68 
5963 La Place Court   Carlsbad CA 1987  61,587   87.4%  1,321   26.02 
2035 Corte Del Nogal   Carlsbad CA 1991  53,982   88.5%  1,040   21.23 
5973 Avendia Encinas   Carlsbad CA 1986  51,695   100.0%  1,325   26.88 
2291 Wood Oak Drive   Herndon VA 1999  227,574   100.0%  5,152   27.70 
198 Van Buren Street   Herndon VA 1996  99,214   80.2%  2,119   29.92 
196 Van Buren Street   Herndon VA 1991  97,781   87.2%  2,081   26.78 
1177 East Belt Line Road   Coppell TX 1998  150,000   100.0%  1,728   12.87 
200 Barr Harbour Drive   Conshohocken PA 1998  85,867   77.7%  2,251   31.90 
181 Washington Street   Conshohocken PA 1999  115,122   100.0%  3,078   28.51 
                         
SUBTOTAL CONSOLIDATED JOINT VENTURES / WEIGHTED AVG.
          1,451,809   94.2%        
                         
500 Office Center Drive   Fort Washington PA 1974  104,303   35.7%  357   21.50 
555 Lancaster Avenue   Radnor PA 1973  242,099   92.5%  2,700   17.89 
100 Lenox Drive   Lawrenceville NJ 1991  92,980   0.0%  225    
                         
SUBTOTAL REDEVELOPMENT PROPERTIES / WEIGHTED AVG.
          439,382  ��59.4%        
                         
150 Radnor Chester Road   Radnor PA 1983  335,458   78.5%  5,419   23.20 
201 King of Prussia Road   Radnor PA 2001  251,372   57.1%  3,352   33.71 
170 Radnor Chester Road   Radnor PA 1983  72,962   88.6%  115   5.34 
130 Radnor Chester Road   Radnor PA 1983  71,349   32.2%  270   11.75 
                         
SUBTOTAL LEASE-UP PROPERTIES / WEIGHTED AVG.
          395,683   59.4%        
                         
                                 
                              Average 
                          Total Base Rent  Annualized 
                  Net  Percentage  for the Twelve  Rental Rate 
              Year Rentable  Leased as of  Months Ended  as of 
              Built/ Square  December 31,  December 31,  December 31, 
Property Name     Location State  Renovated Feet  2007 (a)  2007 (b) (000’s)  2007 (c) 
4805 Lake Brooke Drive     Glen Allen VA  1996   61,249   100.0%  853   16.65 
9100 Arboretum Parkway     Richmond VA  1988   57,917   96.3%  917   18.00 
2812 Emerywood Parkway     Henrico VA  1980   56,984   100.0%  841    
2277 Dabney Road  (f) Richmond VA  1986   50,400   100.0%  266   7.49 
9200 Arboretum Parkway     Richmond VA  1988   49,542   71.4%  486   14.65 
9210 Arboretum Parkway     Richmond VA  1988   48,012   100.0%  676   14.42 
2212-2224 Tomlynn Street  (f) Richmond VA  1985   45,353   100.0%  220   7.21 
2221-2245 Dabney Road  (f) Richmond VA  1994   45,250   86.2%  267   7.83 
2251 Dabney Road  (f) Richmond VA  1983   42,000   100.0%  184   6.00 
2161-2179 Tomlynn Street  (f) Richmond VA  1985   41,550   100.0%  256   7.86 
2256 Dabney Road  (f) Richmond VA  1982   33,413   100.0%  218   8.02 
2246 Dabney Road  (f) Richmond VA  1987   33,271   100.0%  285   10.64 
2244 Dabney Road  (f) Richmond VA  1993   33,050   100.0%  298   10.86 
9211 Arboretum Parkway     Richmond VA  1991   30,791   89.9%  376   14.23 
2248 Dabney Road  (f) Richmond VA  1989   30,184   94.8%  163   8.48 
2130-2146 Tomlynn Street  (f) Richmond VA  1988   29,700   100.0%  258   10.85 
2120 Tomlyn Street  (f) Richmond VA  1986   23,850   100.0%  144   8.13 
2240 Dabney Road  (f) Richmond VA  1984   15,389   100.0%  139   11.20 
4364 South Alston Avenue     Durham NC  1985   56,601   100.0%  1,132   20.54 
                                 
                                 
SUBTOTAL FULLY OWNED      PROPERTIES / WEIGHTED AVG.              24,883,344   94.7%        
                                 
                                 
1177 East Belt Line Road     Coppell TX  1998   150,000   100.0%  1,833   12.87 
181 Washington Street     Conshohocken PA  1999   115,122   88.2%  3,020   28.95 
200 Barr Harbour Drive     Conshohocken PA  1998   86,425   100.0%  2,098   33.08 
                                 
SUBTOTAL CONSOLIDATED JOINT      VENTURES / WEIGHTED AVG.              351,547   96.1%        
                                 
300 Delaware Avenue     Wilmington DE  1989   298,071   78.0%  3,046   17.22 
1333 Broadway     Oakland CA  1972   237,246   72.5%  4,555   26.33 
One Radnor Corporate Center     Radnor PA  1998   185,166   65.9%  3,983   34.69 
6600 Rockledge Drive  (d) Bethesda MD  1981   160,173   57.7%  1,192    
1000 Atrium Way     Mt. Laurel NJ  1989   97,158   50.9%  847   20.14 
Two Righter Parkway  (d) Wilmington DE  1987   95,514   67.4%  186    
100 Lenox Drive     Lawrenceville NJ  1991   92,980   0.0%      
SUBTOTAL REDEVELOPMENT      PROPERTIES / WEIGHTED AVG.              1,166,308   62.8%        
                                 

-32-


(a) Calculated by dividing net rentable square feet included in leases signed on or before December 31, 20062007 at the property by the aggregate net rentable square feet of the property.
 
(b) “Total Base Rent” for the twelve months ended December 31, 20062007 represents base rents received during such period, excluding tenant reimbursements, calculated in accordance with generally accepted accounting principles (GAAP) determined on a straight-line basis.
 
(c) “Average Annualized Rental Rate” is calculated as follows: (i) for office leases written on a triple net basis, the sum of the annualized contracted base rental rates payable for all space leased as of December 31, 2006 (without giving effect to free rent or scheduled rent increases that would be taken into account under GAAP)2007 plus the 20062007 budgeted operating expenses excluding tenant electricity; and (ii) for office leases written on a full service basis, the annualized contracted base rent payable for all space leased as of December 31, 2006.2007. In both cases, the annualized rental rate is divided by the total square footage leased as of December 31, 20062007 without giving effect to free rent or scheduled rent increases that would be taken into account under GAAP.
 
(d) These properties are subject to a ground lease with a third party.
 
(e) We hold our interest in Two Logan Square (100 North 18th Street) primarily through our ownership of second and third mortgages that are secured by this property and that are junior to a first mortgage.mortgage with a third party. Our ownership of these two mortgages currently provides us with all of the cash flows from Two Logan Square after the payment of operating expenses and debt service on the first mortgage.
 
(f) These properties are industrial facilities.
The following table shows information regarding rental rates and lease expirations for the Properties at December 31, 20062007 and assumes that none of the tenants exercisesexercise renewal options or termination rights, if any, at or prior to scheduled expirations:
                                                
 Final Percentage    Final Percentage  
 Rentable Final Annualized of Total Final    Rentable Final Annualized of Total Final  
 Number of Square Annualized Base Rent Annualized    Number of Square Annualized Base Rent Annualized  
Year of Leases Footage Base Rent Per Square Base Rent    Leases Footage Base Rent Per Square Base Rent  
Lease Expiring Subject to Under Foot Under Under    Expiring Subject to Under Foot Under Under  
Expiration Within the Expiring Expiring Expiring Expiring Cumulative  Within the Expiring Expiring Expiring Expiring Cumulative
December 31, Year Leases Leases (a) Leases Leases Total  Year Leases Leases (a) Leases Leases Total
2007  405   3,093,670  $65,018,414  $21.02   11.2%  11.2%
2008  319   3,224,632   68,055,879   21.11   11.8%  23.0% 406 2,893,658  $57,606,004  $19.91  9.9%  9.9%
2009  340   3,651,654   79,335,298   21.73   13.7%  36.7% 353 3,384,497 76,409,406 22.58  13.1%  23.0%
2010  274   3,669,111   80,071,219   21.82   13.9%  50.6% 320 3,744,780 84,549,839 22.58  14.5%  37.5%
2011  248   3,377,304   73,218,213   21.68   12.7%  63.3% 242 3,371,149 77,695,968 23.05  13.3%  50.8%
2012  99   1,620,205   39,995,511   24.69   6.9%  70.2% 221 2,445,311 61,109,061 24.99  10.5%  61.2%
2013  49   1,109,288   24,415,811   22.01   4.2%  74.4% 92 1,429,059 33,865,946 23.70  5.8%  67.0%
2014  43   1,463,277   31,220,832   21.34   5.4%  79.8% 75 1,540,578 37,747,376 24.50  6.5%  73.5%
2015  31   1,346,511   33,219,278   24.67   5.7%  85.5% 37 1,393,137 33,395,384 23.97  5.7%  79.2%
2016  35   630,168   15,738,836   24.98   2.7%  88.2% 38 845,779 19,878,591 23.50  3.4%  82.6%
2017 and thereafter  51   2,608,623   67,760,193   25.98   11.8%  100.0%
2017 44 1,405,511 40,341,917 28.70  6.9%  89.6%
2018 and thereafter 43 2,157,325 60,950,626 28.25  10.4%  100.0%
                              
  1,894   25,794,443  $578,049,484  $22.41   100.0%     
                    1,871 24,610,784  $583,550,118  $23.71  100.0% 
           
 
(a) “Final Annualized Base Rent” for each lease scheduled to expire represents the cash rental rate of base rents, excluding tenant reimbursements, in the final month prior to expiration multiplied by 12. Tenant reimbursements generally include payment of real estate taxes, operating expenses and common area maintenance and utility charges.

-33-


At December 31, 2006,2007, the Properties were leased to 1,6231,650 tenants that are engaged in a variety of businesses. The following table sets forth information regarding leases at the Properties with the 20 tenants with the largest amounts leased based upon Annualized EscalatedBase Rent as of December 31, 2006:2007:
                        
 Weighted Percentage of                         
 Average Aggregate Percentage Annualized Aggregate  Weighted
Average
 Aggregate Percentage Annualized Percentage of
Aggregate
 Number Remaining Square of Aggregate Escalated Annualized  Number Remaining Leased of Aggregate Base Annualized
 of Lease Term Feet Leased Rent (in Escalated  of Lease Term Square Leased Rent (in Base
Tenant Name (a) Leases in Months Leased Square Feet 000) (b) Rent  Leases in Months Feet Square Feet 000) (b) Rent
Kaiser Foundation Health Plan 2 47 483,693  1.8% $17,682  2.9% 2 35 483,893  2.0% $15,395  3.0%
Northrop Grumman Corporation 5 63 519,493  2.0% 15,379  2.5% 6 82 533,873  2.2% 14,677  2.9%
Pepper Hamilton LLP 2 82 305,198  1.2% 9,981  2.0%
State of New Jersey 7 33 441,488  1.7% 13,323  2.2% 7 152 441,488  1.8% 8,945  1.8%
7-Eleven, Inc. 1 4 504,351  1.9% 12,222  2.0%
Pepper Hamilton LLP 2 94 295,873  1.1% 11,101  1.8%
Lockheed Martin 9 48 548,579  2.1% 10,385  1.7%
Dechert LLP 2 127 242,288  1.0% 7,833  1.5%
Wells Fargo Bank, N.A. 6 43 368,879  1.4% 9,379  1.5% 6 34 376,721  1.5% 7,832  1.5%
Verizon 6 46 409,574  1.6% 8,990  1.5% 6 34 410,035  1.7% 7,633  1.5%
Dechert LP 2 139 242,288  0.9% 8,086  1.3%
IBM 5 43 284,940  1.1% 7,811  1.3%
Bearingpoint, Inc. 2 95 243,122  0.9% 7,655  1.2% 3 74 269,431  1.1% 7,570  1.5%
Wachovia Corporation 11 97 274,749  1.1% 7,430  1.5%
Lockheed Martin 9 38 548,579  2.2% 7,193  1.4%
General Services Administration — U.S. Govt. 18 34 348,699  1.4% 6,663  1.3%
Computer Associates International 2 35 255,572  1.0% 5,968  1.2%
AT&T 8 25 335,223  1.3% 7,397  1.2% 7 15 270,732  1.1% 5,730  1.1%
General Services Administration — U.S. Govt. 17 40 330,242  1.3% 7,374  1.2%
Drinker Biddle & Reath 2 87 218,743  0.8% 6,476  1.0%
Blank Rome LLP 1 181 223,886  0.8% 6,419  1.0% 1 169 239,236  1.0% 4,548  0.9%
Penske Truck Leasing 1 198 352,641  1.3% 6,006  1.0%
Marsh USA, Inc. 3 30 154,797  0.6% 5,344  0.9% 3 18 154,797  0.6% 4,532  0.9%
World Savings & Loan Corporation 1 132 148,175  0.6% 5,265  0.9%
Computer Sciences 5 71 252,765  1.0% 5,130  0.8% 5 59 252,765  1.0% 4,341  0.9%
Vignette Corporation 2 49 142,745  0.5% 4,927  0.8%
Omnicare Clinical Research 1 31 150,000  0.6% 3,749  0.7%
Deltek Systems, Inc. 3 51 116,172  0.5% 3,516  0.7%
Woodcock Washburn, LLC 1 168 109,323  0.4% 3,498  0.7%
KPMG, LLP 2 31 95,690  0.4% 3,466  0.7%
             
              
Consolidated Total/Weighted Average 87 66 6,501,497  24.7% $176,351  28.7% 97 67 5,879,241  23.8% $140,500  27.7%
                           
 
(a) The identified tenant includes affiliates in certain circumstances.
 
(b) Annualized EscalatedBase Rent represents the monthly EscalatedBase Rent, excluding tenant reimbursements, for each lease in effect at December 31, 20062007 multiplied by 12. Escalated Rent represents fixed base rental amounts plus tenantTenant reimbursements whichgenerally include payment of real estate taxes, operating expenses and common area maintenance and utility charges. We estimate operating expense reimbursements based on historical amounts and comparable market data.
Real Estate Ventures
As of December 31, 2006,2007, we had an aggregate investment of approximately $74.6$71.6 million in eleven14 unconsolidated Real Estate Ventures (net of returns of investment). We formed these ventures with unaffiliated third parties, or acquired them, to develop office properties or to acquire land in anticipation of possible development of office properties. Nineproperties or properties we owned. Ten of the Real Estate Ventures own fifteen44 office buildings that contain an aggregate of approximately 2.74.4 million net rentable square feet, one Real Estate Venture developed a hotel property that contains 137 rooms, and one Real Estate Venture is developing an office property locatedconstructed and sold condominiums in Charlottesville, Virginia.VA and two Real Estate Ventures are in the planning stages of office developments in Conshohocken, PA and Charlottesville, VA.
As of December 31, 2006,2007, we also had investments in three Real Estate Ventures that are considered to be variable interest entities under FIN 46R and of which we are the primary beneficiary. We also have an investment in one Real Estate Venture where we serve as the general partner and are deemed to control the entity based on the fact that the limited partner does not have substantive participating rights in accordance with EITF 04-05. The financial information for two of these four Real Estate Ventures (Four and Six Tower Bridge) wasthree real estate ventures is consolidated into our consolidated financial statements effective Marchas of December 31, 2004. Prior to March 31, 2004, we accounted for our investment in these two Real Estate Ventures under the equity method.2007.
We account for our remaining non-controlling interests in the Real Estate Ventures using the equity method. Our non-controlling ownership interests range from 6%5% to 50%, subject to specified priority allocations in certain of the Real Estate Ventures. Our investments, initially recorded at cost, are subsequently adjusted for our share of the Real Estate Ventures’ income or loss and contributions to capital and distributions.

-34-


As of December 31, 2006,2007, we had guaranteed repayment of approximately $0.6$0.3 million of loans for the Real Estate Ventures. We also provide customary environmental indemnities and completion guarantees in

-34-


connection with construction and permanent financing both for our own account and on behalf of the Real Estate Ventures.
Item 3. Legal Proceedings
We are involved from time to time in litigation, including intenant disputes with tenants and disputes arising out of agreements to purchase or sell properties. Given the nature of our business activities, we generally consider these lawsuits to be routine to the conduct of our business. Because of the very nature of litigation, including its adversarial nature and the jury system, we cannot predict the result of any lawsuit.
Lawsuits have been brought against owners and managers of multifamily and office properties that assert claims of personal injury and property damage caused by the presence of mold in the properties. We have been named as a defendant in two lawsuits in the State of New Jersey that allege personal injury as a result of the presence of mold. In 2005, one of these lawsuits was dismissed by way of summary judgment with prejudice. The plaintiffs seek unspecified damages in the remaining lawsuit. We referred this lawsuit to our environmental insurance carrier and, as of the date of this Form 10-K, the insurance carrier is defendingcontinuing to defend this claim.
Item 4. Submission of Matters to a Vote of Security Holders
No matters were submitted to a vote of our shareholders during the fourth quarter of the year ended December 31, 2006.2007.
PART II
Item 5. Market for Registrant’s Common Equity and Related Shareholder Matters and Issuer Purchases of Equity Securities
Our common shares are traded on the New York Stock Exchange (“NYSE”) under the symbol “BDN.” There is no established trading market for the Class A units of the Operating Partnership. On February 22, 2007,2008, there were 720702 holders of record of our common shares and 5149 holders of record of the Class A units (in addition to Brandywine Realty Trust). On February 22, 2007,2008, the last reported sales price of the common shares on the NYSE was $35.18.$16.71. The following table sets forth the quarterly high and low closing sales price per common share reported on the NYSE for the indicated periods and the distributions paid by us with respect to each such period.
             
  Share Price Share Price Distributions
  High Low Declared For Quarter
First Quarter 2005 $30.06  $27.61  $0.44 
Second Quarter 2005 $30.90  $27.49  $0.44 
Third Quarter 2005 $32.71  $29.56  $0.44 
Fourth Quarter 2005 $29.69  $26.30  $0.44 
First Quarter 2006 $31.90  $28.94  $0.44 
Second Quarter 2006 $32.17  $27.65  $0.44 
Third Quarter 2006 $33.83  $30.98  $0.44 
Fourth Quarter 2006 $35.37  $31.55  $0.44 
In connection with our merger with Prentess, we declared a dividend of $0.02 per common share on December 21, 2005, paid on January 17, 2006 to shareholders of record on January 4, 2006.
             
  Share Price Share Price Distributions
  High Low Declared For Quarter
First Quarter 2006 $31.90  $28.94  $0.44 
Second Quarter 2006 $32.17  $27.65  $0.44 
Third Quarter 2006 $33.83  $30.98  $0.44 
Fourth Quarter 2006 $35.37  $31.55  $0.44 
First Quarter 2007 $36.14  $32.04  $0.44 
Second Quarter 2007 $33.79  $28.43  $0.44 
Third Quarter 2007 $28.58  $23.35  $0.44 
Fourth Quarter 2007 $26.86  $17.78  $0.44 
For each quarter during 20062007 and 2005,2006, the Operating Partnership paid a cash distribution to holders of its Class A units equal in amount to the dividends paid on the Company’s common shares for such quarter.
In connection with our January 5, 2006 merger with Prentiss Properties Trust, we declared a dividend of $0.02 per common share on December 21, 2005, paid on January 17, 2006 to shareholders of record on January 4, 2006.

-35-


In order to maintain the status of Brandywine Realty Trust as a REIT, we must make annual distributions to shareholders of at least 90% of itsour taxable income (not including net capital gains). Future distributions will be declared at the discretion of our Board of Trustees and will depend on our actual cash flow, our financial condition, capital requirements, the annual distribution requirements under the REIT provisions of the Internal Revenue Code of 1986 and such other factors as our Board deems relevant.
The following table provides information as of December 31, 20062007 with respect to compensation plans under which our equity securities are authorized for issuance:
(a)(b)(c)
Plan categoryNumber of securities to beWeighted-average exerciseNumber of securities
issued upon exercise ofprice of outstandingremaining available for
outstanding options,options, warrants andfuture issuance under
warrants and rightsrightsequity compensation plans
(excluding securities
reflected in column (a))
Equity compensation plans approved by security holders (1)1,286,075$26.45(2)4,129,630
Equity compensation plans not approved by security holders
Total1,286,075$26.45(2)4,129,630
             
      (c) 
      Number of securities 
  (a)  (b)  remaining available for 
  Number of securities to be  Weighted-average  future issuance under 
  issued upon exercise of  exercise price of  equity compensation plans 
  outstanding options,  outstanding options,  (excluding securities 
Plan category warrants and rights  warrants and rights  reflected in column (a)) 
Equity compensation plans approved by security holders (1)  1,070,099  $26.13(2)  4,168,364 
Equity compensation plans not approved by security holders         
Total  1,070,099  $26.13   4,168,364 
 
(1) Relates to our Amended and Restated 1997 Long-Term Incentive Plan. In May 2007, the Company’s shareholders approved an amendment to the Company’s Amended and Restated 1997 Long-Term Incentive Plan and(the “1997 Plan”). The amendment provided for the merger of the Prentiss Properties Trust 2005 Share Incentive Plan that we assumed in our January 2006 merger(the “Prentiss 2005 Plan”) with Prentiss Properties Trust. Under eachand into the 1997 Plan, thereby transferring into the 1997 Plan all of these two plans, the Compensation Committee of our Board of Trustees may award restricted or unrestricted common shares, options to acquire common shares and performance shares or units or other instruments that have a value tied to our common shares. In May 2005, our shareholders authorized an increase to the number of common shares that may be issued or subject toremained available for award under the 1997 Long-Term IncentivePrentiss 2005 Plan. The Company had previously assumed the Prentiss 2005 Plan, from 5,000,000 to 6,600,000. The May 2005 amendment provides that 500,000together with other Prentiss incentive plans, as part of the shares under theCompany’s January 2006 acquisition of Prentiss Properties Trust (“Prentiss”). The 1997 Plan are availablereserves 500,000 common shares solely for awards under options and share appreciation rights that have an exercise or strike price not less thanat least equal to the market price of ourthe common shares on the date of award and the remaining 6,100,000 shares under the 1997 Plan are available for any type of award, underincluding restricted share and performance share awards and options. Incentive stock options may not be granted with an exercise price that is lower than the Plan.market price of the common shares on the grant date. All options awarded by the Company to date are non-qualified stock options that generally had an initial vesting schedule that ranged from two to ten years.
 
(2) Weighted-average exercise price of outstanding options; excludes restricted common shares.
The following table presents information related to our share repurchases:

-36-


The following table presents information related to our share repurchases:
                 
          Purchased as Part of  Shares that May Yet Be 
  Total Number of  Average Price Paid  Publicly Announced  Purchased Under the 
Period Shares Purchased  per Share  Plans or Programs  Plans or Programs (a) 
              (in thousands) 
 
October 2006  1,829,000  $32.80      2,319,800 
November 2006           2,319,800 
December 2006           2,319,800 
               
Total  1,829,000            
               
                 
              
          Purchased as Part of Shares that May Yet Be
  Total Number of Average Price Paid Publicly Announced Purchased Under the
     Period Shares Purchased per Share Plans or Programs Plans or Programs (a)
 
              (in thousands)
January 2007  39,957(b) $32.65      2,319,800 
February 2007           2,319,800 
March 2007  1,301,000   34.34   1,301,000   1,018,800 
April 2007  265,000   33.38   265,000   753,800 
May 2007           753,800 
June 2007  1,128(b)  29.47      753,800 
July 2007  214,600   27.50   214,600   539,200 
August 2007           539,200 
September 2007           539,200 
October 2007           539,200 
November 2007           539,200 
December 2007           539,200 
                 
Total  1,821,685       1,780,600     
                 
 
(a) On May 2, 2006, our Board of Trustees authorized an increase in the number of common shares that we may repurchase, whether in open-market or privately negotiated transactions. The Board authorized us to purchase up to an aggregate of 3,500,000 common shares (inclusive of remaining share repurchase availability under the Board’s prior authorization from September 2001). There is no expiration date on the share repurchase program. The 1,829,000 shares shown above were purchased with proceedsprogram and the Board can cancel this program at any time.
(b)Represents Common Shares cancelled by the Company upon vesting of our 3.875% exchangeable notes and did not reduce capacity under the share repurchase plan.restricted Common Shares previously awarded to Company employees in satisfaction of tax withholding obligations.

-37-


SHARE PERFORMANCE GRAPH
The Securities and Exchange Commission requires us to present a chart comparing the cumulative total shareholder return on the common shares with the cumulative total shareholder return of (i) a broad equity index and (ii) a published industry or peer group index. The following chart compares the cumulative total shareholder return for the common shares with the cumulative shareholder return of companies on (i) the S&P 500 Index (ii) the Russell 2000 and (iii) the NAREIT ALL-REIT Total Return Index as provided by NAREIT for the period beginning December 31, 20012002 and ending December 31, 2006.2007.
                                                
 Period Ending  Period Ending 
Index 12/31/01 12/31/02 12/31/03 12/31/04 12/31/05 12/31/06  12/31/02 12/31/03 12/31/04 12/31/05 12/31/06 12/31/07 
  
Brandywine Realty Trust 100.00 111.81 147.33 171.86 173.68 215.51  100.00 131.76 153.70 155.32 192.74 110.30 
S&P 500 100.00 77.90 100.24 111.14 116.59 135.00  100.00 128.68 142.69 149.70 173.34 182.86 
Russell 2000 100.00 79.52 117.09 138.55 144.86 171.47  100.00 147.25 174.24 182.18 215.64 212.26 
NAREIT All Equity REIT Index 100.00 103.82 142.37 187.33 210.12 283.78  100.00 137.13 180.44 202.38 273.34 230.45 

-38-


Item 6. Selected Financial Data
The following table sets forth selected financial and operating data and should be read in conjunction with the financial statements and related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in this Annual Report on Form 10-K. The selected data have been revised to reflect the reclassification of losses from early extinguishments of debt, in accordance with SFAS No. 145, and the disposition of all properties since January 1, 2002,2003, which have been reclassified as discontinued operations for all periods presented in accordance with SFAS No. 144.
Brandywine Realty Trust
(in thousands, except per common share data and number of properties)
                                        
Year Ended December 31, 2006 2005 2004 2003 2002  2007 2006 2005 2004 2003
    
Operating Results
  
Total revenue $662,801 $380,624 $316,557 $293,108 $277,553  $683,972 $630,285 $364,435 $299,618 $274,809 
Income (loss) from continuing operations  (14,031) 38,179 56,483 72,774 43,445  28,761  (18,729) 32,778 49,559 65,424 
Net income 10,482 42,766 60,301 86,678 62,984  56,453 10,482 42,767 60,301 86,678 
Income allocated to Common Shares 2,490 34,774 55,081 54,174 51,078  48,461 2,490 34,775 55,081 54,174 
Income from continuing operations per Common Share  
Basic $(0.25) $0.54 $1.07 $1.05 $0.85  $0.24 $(0.30) $0.44 $0.94 $0.85 
Diluted $(0.24) $0.54 $1.07 $1.05 $0.84  $0.24 $(0.30) $0.44 $0.93 $0.85 
Earnings per Common Share  
Basic $0.03 $0.62 $1.15 $1.43 $1.40  $0.56 $0.03 $0.62 $1.15 $1.43 
Diluted $0.03 $0.62 $1.15 $1.43 $1.39  $0.55 $0.03 $0.62 $1.15 $1.43 
Cash distributions declared per Common Share $1.76 $1.78 (a) $1.76 $1.76 $1.76  $1.76 $1.76 $1.78 (a) $1.76 $1.76 
  
Balance Sheet Data
  
Real estate investments, net of accumulated depreciation $4,739,726 $2,541,486 $2,363,865 $1,695,355 $1,745,981  $4,656,925 $4,739,726 $2,541,486 $2,363,865 $1,695,355 
Total assets 5,508,263 2,805,745 2,633,984 1,855,776 1,919,288  5,214,099 5,509,018 2,805,745 2,633,984 1,855,776 
Total indebtedness 3,152,230 1,521,384 1,306,669 867,659 1,004,729  3,100,969 3,152,230 1,521,384 1,306,669 867,659 
Total liabilities 3,486,346 1,663,022 1,444,116 950,431 1,097,793  3,386,745 3,487,101 1,663,022 1,444,116 950,431 
Minority interest 123,991 37,859 42,866 133,488 135,052  84,119 123,991 37,859 42,866 133,488 
Convertible preferred shares    37,500 132,300      37,500 
Beneficiaries’ equity 1,897,926 1,104,864 1,147,002 771,857 686,443  1,743,235 1,897,926 1,104,864 1,147,002 771,857 
  
Other Data
  
Cash flows from:  
Operating activities 241,566 125,147 152,890 118,793 128,836  219,817 241,566 125,147 152,890 118,793 
Investing activities  (915,794)  (252,417)  (682,652)  (34,068) 5,038  44,473  (915,794)  (252,417)  (682,652)  (34,068)
Financing activities 692,433 119,098 536,556  (102,974)  (120,532)  (284,069) 692,433 119,098 536,556  (102,974)
  
Property Data
  
Number of properties owned at year end 313 251 246 234 238  257 313 251 246 234 
Net rentable square feet owned at year end 31,764 19,600 19,150 15,733 16,052  28,888 31,764 19,600 19,150 15,733 
 
(a) Includes $0.02 special distribution declared in December 2005 for shareholders of record for the period January 1, 2006 through January 4, 2006 (pre-Prentiss merger period).

-39-


Brandywine Operating Partnership, L.P.
(in thousands, except per unit data and number of properties)
                                        
Year Ended December 31, 2006 2005 2004 2003 2002  2007 2006 2005 2004 2003
    
Operating Results
  
Total revenue $662,801 $380,624 $316,557 $293,108 $277,553  $683,972 $630,285 $364,435 $299,618 $274,809 
Income (loss) from continuing operations  (15,059) 39,262 59,118 82,068 52,820  29,672  (19,975) 33,667 51,930 74,367 
Net income 10,626 44,013 63,081 96,467 73,136  58,599 10,626 44,013 63,081 96,467 
Income from continuing operations per Common Partnership Unit  
Basic $(0.25) $0.54 $1.07 $1.06 $0.86  $0.24 $(0.30) $0.44 $0.93 $0.87 
Diluted $(0.24) $0.54 $1.07 $1.06 $0.86  $0.24 $(0.30) $0.44 $0.93 $0.87 
Earnings per Common Partnership Units  
Basic $0.03 $0.62 $1.15 $1.43 $1.41  $0.56 $0.03 $0.62 $1.15 $1.43 
Diluted $0.03 $0.62 $1.14 $1.43 $1.40  $0.55 $0.03 $0.62 $1.14 $1.43 
Cash distributions declared per Common Partnership Unit $1.76 $1.78 (a) $1.76 $1.76 $1.76  $1.76 $1.76 $1.78  (a) $1.76 $1.76 
  
Balance Sheet Data
  
Real estate investments, net of accumulated depreciation $4,739,726 $2,541,486 $2,363,865 $1,695,355 $1,745,981  $4,656,925 4,739,726 2,541,486 2,363,865 1,695,355 
Total assets 5,508,263 2,805,745 2,633,984 1,855,776 1,919,288  5,214,099 5,509,018 2,805,745 2,633,984 1,855,776 
Total indebtedness 3,152,230 1,521,384 1,306,669 867,659 1,004,729  3,100,969 3,152,230 1,521,384 1,306,669 867,659 
Total liabilities 3,486,346 1,662,967 1,443,934 951,484 1,098,846  3,386,745 3,487,101 1,662,967 1,443,934 951,484 
Series B Preferred Units    97,500 97,500      97,500 
Redeemable limited partnership units 131,711 54,300 60,586 46,505 38,984  68,819 131,711 54,300 60,586 46,505 
Partners’ equity 1,855,770 1,088,478 1,129,464 760,287 683,958  1,758,535 1,855,770 1,088,478 1,129,464 760,287 
  
Other Data
  
Cash flows from:  
Operating activities 241,566 125,147 152,890 118,793 128,836  219,817 241,566 125,147 152,890 118,793 
Investing activities  (915,794)  (252,417)  (682,652)  (34,068) 5,038  44,473  (915,794)  (252,417)  (682,652)  (34,068)
Financing activities 692,433 119,098 536,556  (102,974)  (120,532)  (284,069) 692,433 119,098 536,556  (102,974)
  
Property Data
  
Number of properties owned at year end 313 251 246 234 238  257 313 251 246 234 
Net rentable square feet owned at year end 31,764 19,600 19,150 15,733 16,052  28,888 31,764 19,600 19,150 15,733 
 
(a) Includes $0.02 special distribution declared in December 2005 for unitholders of record for the period January 1, 2006 through January 4, 2006 (pre-Prentiss merger period).

-40-


Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations
The following discussion should be read in conjunction with the consolidated financial statements appearing elsewhere herein and is based primarily on our consolidated financial statements for the years ended December 31, 2007, 2006 2005 and 2004.2005.
OVERVIEW
As of December 31, 20062007 we managed our portfolio within nineseven geographic segments: (1) Pennsylvania—West,Pennsylvania, (2) Pennsylvania—North,New Jersey/Delaware, (3) New Jersey, (4) Urban, (5) Richmond, Virginia, (6)(4) California—North, (7)(5) California—South, (8) Mid-Atlantic(6) Metropolitan Washington, D.C. and (9)(7) Southwest. The Pennsylvania—WestPennsylvania segment includes properties in Chester, Delaware, Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery counties in the Philadelphia suburbs ofand the City fo Philadelphia in Pennsylvania. The Pennsylvania—North segment includes properties north of Philadelphia in Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery counties. The New JerseyJersey/Delaware segment includes properties in counties in the southern and central partspart of New Jersey including Burlington, Camden and Mercer counties and in Bucks County, Pennsylvania. The Urban segment includes properties in the City of Philadelphia, Pennsylvania and the state of Delaware. The Richmond, Virginia segment includes properties primarily in Albemarle, Chesterfield and Henrico counties, the CitiesCity of Richmond and Durham, North Carolina. The California—North segment includes properties in the CitiesCity of Oakland and Concord. The California—South segment includes properties in the CitiesCity of Carlsbad and San Diego.Rancho Bernardo. The Mid-AtlanticMetropolitan Washington, D.C. segment includes properties in Northern Virginia and the Cities of Bethesda and Rockville,suburban Maryland. The Southwest segment includes properties in Dallas and Travis countiescounty of Texas.
We receive income primarily from rental revenue (including tenant reimbursements) from our properties and, to a lesser extent, from the management of properties owned by third parties and from investments in the Real Estate Ventures.
Our financial performance is dependent upon the demand for office, industrial and other commercial space in our markets and prevailing interest rates.
Through our January 2006 acquisition of Prentiss, we acquired interests in properties that contain an aggregate of 14.0 million net rentable square feet. Through this acquisition, we also entered into new markets, including markets in California, Metropolitan Washington, D.C., and Texas. Accordingly, the reported historical financial information for periods prior to this transaction is not believed to be fully indicative of our future operating results or financial condition.
As we seek to increase revenue through our operating activities, our management also seeks to minimize operating risks, including (i) tenant rollover risk, (ii) tenant credit risk and (iii) development risk.
Tenant Rollover Risk:
We are subject to the risk that tenant leases, upon expiration, are not renewed, that space may not be relet, or that the terms of renewal or reletting (including the cost of renovations) may be less favorable to us than the current lease terms. Leases accounting for approximately 11.2%9.9% of our aggregate final annualized base rents as of December 31, 20062007 (representing approximately 11.0%10.0% of the net rentable square feet of the Properties) expire without penalty in 2007.2008. We maintain an active dialogue with our tenants in an effort to maximize lease renewals. Our retention rate for leases that were scheduled to expire in 20062007 was 78.7%72.8%. If we are unable to renew leases or relet space under expiring leases, at anticipated rental rates, or if tenants terminate their leases early, our cash flow would be adversely impacted.
Tenant Credit Risk:
In the event of a tenant default, we may experience delays in enforcing our rights as a landlord and may incur substantial costs in protecting our investment. Our management regularly evaluates our accounts receivable reserve policy in light of our tenant base and general and local economic conditions. Our accounts receivable allowance was $9.3$10.2 million or 9.0% of total receivables (including accrued rent

-41-


receivable) as of December 31, 2006 compared to $4.9 million or 7.6%9.2% of total receivables (including accrued rent receivable) as of December 31, 2005.2007 compared to $9.3 million or 9.0% of total receivables (including accrued rent receivable) as of December 31, 2006.
Development Risk:
As of December 31, 2006,2007, we had in development or redevelopment nine14 sites aggregating approximately 1.43.7 million square feet. We estimate the total cost of these projects to be $304.4$718.3 million and we had incurred $141.2$425.1 million of these costs as of December 31, 2006.2007. We are actively marketing space at these projects to prospective tenants but can provide no assurance as to the timing or terms of any leases of space

-41-


at these projects. As of December 31, 2006,2007, we owned approximately 490417 acres of undeveloped land. Risks associated with development of this land include construction cost increases or overruns and construction delays, insufficient occupancy rates, building moratoriums and inability to obtain necessary zoning, land-use, building, occupancy and other required governmental approvals.
CRITICAL ACCOUNTING POLICIES AND ESTIMATES
Management’s Discussion and Analysis of Financial Condition and Results of Operations discusses our consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses for the reporting periods. Certain accounting policies are considered to be critical accounting policies, as they require management to make assumptions about matters that are highly uncertain at the time the estimate is made and changes in the accounting estimate are reasonably likely to occur from period to period. Management believes the following critical accounting policies reflect our more significant judgments and estimates used in the preparation of our consolidated financial statements. For a summary of all of our significant accounting policies, see Note 2 to our consolidated financial statements included elsewhere in this report.
Revenue Recognition
We recognize rental revenue on the straight-line basis from the later of the date of the commencement of the lease or the date of acquisition of the property subject to existing leases, which averages minimum rents over the terms of the leases. Certain lease agreements contain provisions that require tenants to reimburse a pro rata share of real estate taxes and common area maintenance costs.
Real Estate Investments
Real estate investments are carried at cost. We record acquisition of real estate investments under the purchase method of accounting and allocate the purchase price to land, buildings and intangible assets on a relative fair value basis. Depreciation is computed using the straight-line method over the useful lives of buildings and capital improvements (5 to 55 years) and over the shorter of the lease term or the life of the asset for tenant improvements. Direct construction costs related to the development of Properties and land holdings are capitalized as incurred. We expense routine repair and maintenance expenditures and capitalize those items that extend the useful lives of the underlying assets.
Real Estate Ventures
When we obtain an economic interest in an entity, we evaluate the entity to determine if the entity is deemed a variable interest entity (“VIE”), and if we are deemed to be the primary beneficiary, in accordance with FASB Interpretation No.46 R,No.46R, “Consolidation of Variable Interest Entities” (“FIN 46R”). If the entity is not deemed to be a VIE, and we serve as the general partner within the entity, we evaluate to determine if our presumed control as the general partner is overcome by the “kick out” rights and other substantive participating rights of the limited partners in accordance with EITF 04-05, “Determining Whether a General Partner, or the General Partners as a Group, Controls a Limited Partnership or Similar Entity When the Limited Partners Have Certain Rights (“EITF 04-05”).

-42-


We consolidate (i) entities that are VIEs and of which we are deemed to be the primary beneficiary and (ii) entities that are non-VIEs which we control. Entities that we account for under the equity method (i.e., at cost, increased or decreased by our share of earnings or losses, less distributions) include (i) entities that are VIEs and of which we are not deemed the primary beneficiary and (ii) entities that are non-VIEs which we do not control, but over which we have the ability to exercise significant influence. We will reconsider our determination of whether an entity is a VIE and who the primary beneficiary is if events occur that are likely to cause a change in the original determinations.

-42-


Impairment of Long-Lived Assets
Our management reviews investments in real estate and real estate ventures for impairment if facts and circumstances indicate that the carrying value of such assets may not be recoverable. Measurement of any impairment loss is based on the fair value of the asset, determined using customary valuation techniques, such as the present value of expected future cash flows.
In accordance with SFAS No. 144 (“SFAS 144”),Accounting for the Impairment or Disposal of Long-Lived Assets, long-lived assets, such as real estate investments and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of would be separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The assets and liabilities relating to assets classified as held-for-sale would be presented separately in the appropriate asset and liability sections of the balance sheet.
Income Taxes
The Company has elected to be treated as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”). In addition, we havethe Company has several subsidiary REITs. In order to maintain their qualification as a REIT, the Company and each of its REIT subsidiaries are required to, among other things, distribute at least 90% of itstheir REIT taxable income to its stockholders and meet certain tests regarding the nature of its income and assets. As REITs, the Company and its REIT subsidiaries are not subject to federal income tax with respect to the portion of its income that meets certain criteria and is distributed annually to the stockholders. Accordingly, no provision for federal income taxes is included in the accompanying consolidated financial statements with respect to the operations of these operations.REITs. The Company and its REIT subsidiaries intend to continue to operate in a manner that allows them to continue to meet the requirements for taxation as REITs. Many of these requirements, however, are highly technical and complex. If the Company or one of its REIT subsidiaries were to fail to meet these requirements, the Company would be subject to federal income tax. The Company is subject to certain state and local taxes. Provision for such taxes has been included in general and administrative expenses in the Company’s Consolidated Statements of Operations and Comprehensive Income.
WeThe Company may elect to treat one or more of ourits subsidiaries as a taxable REIT subsidiary (“TRS”). In general, a TRS of the Company may perform additional services for our tenants and generally may engage in any real estate or non-real estate related business (except for the operation or management of health care facilities or lodging facilities or the provision to any person, under a franchise, license or otherwise, of rights to any brand name under which any lodging facility or health care facility is operated). A TRS is subject to corporate federal income tax. We haveThe Company has elected to treat certain of ourits corporate subsidiaries as TRSs, these entities provide third party property management services and certain services to tenants that could not otherwise be provided. At December 31, 2006,2007, our TRSs had tax net operating loss (“NOL”) carryforward of approximately $3.0$2.5 million, expiring from 2013 to 2020. We have ascribed a full valuation allowance to our net deferred tax assets.

-43-

We adopted the provisions of FASB Interpretation No. 48,Accounting for Uncertainty in Income Taxes, an Interpretation of FASB Statement No. 109(“FIN 48”) on January 1, 2007. As a result of the implementation of FIN 48, we recognized no material adjustments regarding our tax accounting treatment. We expect to recognize interest and penalties, to the extent incurred related to uncertain tax positions, if any, as income tax expense, which would be included in general and administrative expense.


Allowance for Doubtful Accounts
We maintain an allowance for doubtful accounts that represents an estimate of losses that may be incurred from the inability of tenants to make required payments. The allowance is an estimate based on two calculations that are combined to determine the total amount reserved. First, we evaluate specific accounts

-43-


where we have determined that a tenant may have an inability to meet its financial obligations. In these situations, we use our judgment, based on the facts and circumstances, and records a specific reserve for that tenant against amounts due to reduce the receivable to the amount that we expect to collect. These reserves are re-evaluated and adjusted as additional information becomes available. Second, a reserve is established for all tenants based on a range of percentages applied to receivable aging categories. If the financial condition of our tenants were to deteriorate, additional allowances may be required.
Deferred Costs
We incur direct costs related to the financing, development and leasing of our properties. Management exercises judgment in determining whether such costs meet the criteria for capitalization or must be expensed. Capitalized financing fees are amortized over the related loan term and capitalized leasing costs are amortized over the related lease term. Management re-evaluates the remaining useful lives of leasing costs as the creditworthiness of our tenants and economic and market conditions change.
Purchase Price Allocation
We allocate the purchase price of properties to net tangible and identified intangible assets acquired based on fair values. Above-market and below-market in-place lease values for acquired properties are recorded based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) our estimate of the fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancellable term of the lease. Capitalized above-market lease values are amortized as a reduction of rental income over the remaining non-cancellable terms of the respective leases. Capitalized below-market lease values are amortized as an increase of rental income over the remaining non-cancellable terms of the respective leases, including any fixed-rate renewal periods.
Other intangible assets also include amounts representing the value of tenant relationships and in-place leases based on our evaluation of the specific characteristics of each tenant’s lease and our overall relationship with the respective tenant. We estimate the cost to execute leases with terms similar to the remaining lease terms of the in-place leases, include leasing commissions, legal and other related expenses. This intangible asset is amortized to expense over the remaining term of the respective leases. We estimate fair value through methods similar to those used by independent appraisers or by using independent appraisals. Factors that we consider in our analysis include an estimate of the carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. We also consider information obtained about each property as a result of our pre-acquisition due diligence, marketing and leasing activities in estimating the fair value of the tangible and intangible assets acquired. In estimating carrying costs, we include real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, which primarily range from three to twelve months.
Characteristics that we consider in allocating value to our tenant relationships include the nature and extent of our business relationship with the tenant, growth prospects for developing new business with the tenant, the tenant’s credit quality and expectations of lease renewals. The value of tenant relationship intangibles is amortized over the remaining initial lease term and expected renewals, but in no event longer than the remaining depreciable life of the building. The value of in-place leases is amortized over the remaining non-cancellable term of the respective leases and any fixed-rate renewal periods.
In the event that a tenant terminates its lease, the unamortized portion of each intangible, including market rate adjustments, in-place lease values and tenant relationship values, would be charged to expense.

-44-


RESULTS OF OPERATIONS
Comparison of the Year Ended December 31, 2007 to the Year Ended December 31, 2006
The table below shows selected operating information for the Same Store Properties and the Total Portfolio. The Same Store Properties consists of 228 properties containing an aggregate of approximately 22.5 million net rentable square feet that we owned for the entire twelve-month periods ended December 31, 2007 and substantially all of the period ended December 31, 2006. We consider the properties that we acquired in the Prentiss merger on January 5, 2006 as part of our Same Store Portfolio and, therefore, the results of operations for the year ended December 31, 2006 do not include four days of activity. This table also includes a reconciliation from the Same Store Properties to the Total Portfolio (i.e., all properties owned by us as of December 31, 2007 and 2006) by providing information for the properties which were acquired, under development, redevelopment or placed into service and administrative/elimination information for the years ended December 31, 2007 and 2006.
The Total Portfolio net income presented in the table agrees to the net income of Brandywine Realty Trust. The only difference between the reported net income of Brandywine Realty Trust and Brandywine Operating Partnership is the allocation of the minority interest attributable to continuing and discontinued operations for limited partnership units of the Operating Partnership that is reflected in the statement of operations for Brandywine Realty Trust.

-45-


                                                 
             Acquired/Completed  Development/Redevelopment  Other    
  Same Store Properties Properties  Properties (a)  (Eliminations) (b)  All Properties
          Increase/                                  Increase/ 
(dollars in thousands) 2007  2006  (Decrease)  2007  2006  2007  2006  2007  2006  2007  2006  (Decrease) 
Revenue:                                                
Cash rents $422,709  $417,427  $5,282  $66,306  $25,311  $13,142  $21,756  $20,979  $20,188  $523,136  $484,682  $38,454 
Straight-line rents  12,808   15,214   (2,406)  13,367   11,558   1,122   532   626   82   27,923   27,386   537 
Rents — FAS 141  8,561   7,331   1,230   1,388   584   1,506   (701)        11,455   7,214   4,241 
                                     
Total rents  444,078   439,972   4,106   81,061   37,453   15,770   21,587   21,605   20,270   562,514   519,282   43,232 
Tenant reimbursements  72,521   69,378   3,143   5,675   2,370   3,298   3,260   3,910   3,809   85,404   78,817   6,587 
Termination fees  9,137   6,625   2,512   809   100   238   506   52      10,236   7,231   3,005 
Third party management fees, labor reimbursement and leasing                       19,691   19,453   19,691   19,453   238 
Other  2,488   2,815   (327)  361   121   (31)  58   3,309   2,508   6,127   5,502   625 
                                     
                                                 
Total revenue  528,224   518,790   9,434   87,906   40,044   19,275   25,411   48,567   46,040   683,972   630,285   53,687 
 
Operating Expenses:                                                
Property operating expenses  159,265   154,340   4,925   24,105   13,547   8,944   9,640   (3,184)  (5,603)  189,130   171,924   17,206 
Real estate taxes  52,227   51,311   916   6,438   3,531   2,408   2,219   3,822   3,747   64,895   60,808   4,087 
Management expenses                       10,361   10,675   10,361   10,675   (314)
                                     
Subtotal  211,492   205,651   5,841   30,543   17,078   11,352   11,859   10,999   8,819   264,386   243,407   20,979 
Net operating income  316,732   313,139   3,593   57,363   22,966   7,923   13,552   37,568   37,221   419,586   386,878   32,708 
Administrative expenses                       28,144      28,182   29,644   (1,462)
Depreciation and amortization  178,561   180,081   (1,520)  37,543   15,539   11,459   12,167   14,749   22,923   242,312   230,710   11,602 
                                     
Operating Income (loss) $138,171  $133,058  $5,113  $19,820  $7,427  $(3,536) $1,385  $(5,325) $14,298  $149,092  $126,524  $22,568 
     
Number of properties  225           18       14               257         
Square feet (in thousands)  21,943           3,292       3,653               28,888         
Other Income (Expense):                                                
Interest income                                      4,040   9,513   (5,473)
Interest expense                                      (162,675)  (171,177)  8,502 
Interest expense — Deferred financing costs                                      (4,496)  (4,607)  111 
Loss on settlement of treasury lock agreements                                      (3,698)     (3,698)
Equity in income of real estate ventures                                      6,955   2,165   4,790 
Net gain on disposition of depreciated real estate                                      40,498      40,498 
Net gain on disposition of undepreciated real estate                                      421   14,190   (13,769)
Gain on termination of purchase contract                                         3,147   (3,147)
         ��                                    
Income (loss) before minority interest                                      30,137   (20,245)  50,382 
Minority interest — partners’ share of consolidated real estate ventures                                      (465)  270   (735)
Minority interest attributable to continuing operations — LP units                                      (911)  1,246   (2,157)
                                              
Income (loss) from continuing operations                                      28,761   (18,729)  47,490 
Income (loss) from discontinued operations                                      27,692   29,211   (1,519)
                                              
Net Income (loss)                                     $56,453  $10,482  $45,971 
                                              
Earnings per common share                                     $0.56  $0.03  $0.53 
                                              
     
EXPLANATORY NOTES
(a)- Results include: seven developments and seven redevelopment properties.
(b)- Represents certain revenues and expenses at the corporate level as well as various intercompany costs that are eliminated in consolidation and third-party management fees. Also included are revenues and expenses from the 29 DRA properties.

-46-


Total Revenue
Cash rents from the Total Portfolio increased by $38.5 million from 2006 to 2007, primarily reflecting:
1)An additional $5.3 million at the Same Store Portfolio from increased occupancy and increased rents received on lease renewals.
2)An additional $41.0 million from six properties that we acquired during 2007 and six development/redevelopment properties (including additional occupancy at Cira Centre) that we completed and placed in service in 2007 and two that were placed in service in December 2006.
3)These increases were offset by the decrease of $8.6 million in cash rents at our development/redevelopment properties primarily as a result of six buildings, which are now included in redevelopment, that were occupied during 2006.
Our rents at the Total Portfolio that we recognized from the net amortization of above and below market leases at acquired properties, in conformity with SFAS No. 141, increased by $4.2 million primarily as a result of $1.2 million of above market leases in our Same Store Portfolio being fully amortized and the acquisition of eight properties during 2007. Two of these properties are included in the Development/Redevelopment properties.
Tenant reimbursements at the Total Portfolio increased by $6.6 million primarily as a result of increased operating expenses of $21.0 million.
Operating Expenses and Real Estate Taxes
Property operating expenses, including real estate taxes, at the Total Portfolio increased by $21.0 million from 2006 to 2007, primarily reflecting:
1)An increase of $5.8 million at the Same Store Portfolio, primarily due to increased occupancy and real estate tax reassessments. Increased occupancy at our properties causes an increase in the amount of expense incurred for utilities, security, and janitorial services.
2)The incurrence of $13.5 million of property operating expenses for six of the properties acquired during 2007 and eight development/redevelopment properties that we completed and placed in service during or after December 2006.
Depreciation and Amortization Expense
Depreciation and amortization increased by $11.6 million in 2007 compared to 2006, primarily reflecting:
1)The incurrence of $22.0 million of depreciation and amortization expense on account of six properties that we acquired during 2007 and eight development/redevelopment properties (including additional occupancy at Cira Centre) that we completed and placed in service during or after December 2006.
2)This increase was offset by $11.9 million of accelerated depreciation expense for one of our properties (50 E. Swedesford Road) which was demolished as part of an office park development in suburban Philadelphia during 2006. This property is included in Development/Redevelopment Properties.
3)The increase is also offset by a decrease of $1.5 million in our Same Store Portfolio. This decrease is the result of assets within our Same Store Portfolio being fully amortized subsequent to 2006.
Administrative Expenses
Our administrative expenses decreased by approximately $1.5 million in 2007 compared to 2006, primarily reflecting higher costs that we incurred in 2006 as part of our integration activities following our January 2006 merger with Prentiss partially offset by the severance costs incurred in the third quarter of 2007.
Interest Income/ Expense

-47-


We used our investment in marketable securities to pay down defeased debt in the fourth quarter of 2006. This pay down caused a decrease $6.0 million in interest income. This decrease was partially offset by the amount of interest income earned on funds held in escrow with a qualified intermediary as part of completed 1031 like-kind transactions.
Interest expense decreased by $8.5 million primarily due to an increase in capitalized interest of $7.9 million during 2007 compared to 2006. The increased amount of capitalized interest is the result of a greater number of development and redevelopment projects and increased project funding for those projects that are under development in both periods. At December 31, 2007, we had seven projects under development and seven projects under redevelopment with total project costs on which we are presently capitalizing interest of $249.8 million. As of December 31, 2006, we had six projects under development and three projects under redevelopment with total project costs on which we were capitalizing interest through that date of $141.2 million.
This decrease was offset by increased interest expense on our unsecured debt based on the timing of the issuances of unsecured debt during 2007 and 2006 as noted in the liquidity and capital resources section below.
Loss on Settlement of Treasury Lock Agreements
In July 2007, in anticipation of an expected debt offering, we entered into four treasury lock agreements. The treasury lock agreements were designated as cash flow hedges on interest rate risk and qualified for hedge accounting. The agreements were settled on September 21, 2007, the original termination date of each agreement, at a total cost of $3.7 million. During the fourth quarter of 2007, we determined that the planned debt issuance was not probable and recorded $3.7 million as an expense for the residual balance of $3.7 million.
Equity in income of Real Estate Ventures
The increase of $4.8 million over 2006 is primarily due to a distribution of $3.9 million received as a result of our residual profit interest in a Real Estate Venture and the completion of an office property that was placed in service by a Real Estate Venture during 2007.
Net gain on disposition of depreciated real estate
As more fully discussed in Note 3 to our Consolidated Financial Statements, we recognized a gain on the partial transfer of interests in properties to which we retained a significant continuing involvement with the properties through our joint venture interest and our management and leasing services. As a result of this continuing involvement, we have determined that the gain on disposition and the operations of the properties should not be included in discontinued operations.
Net gain on disposition of undepreciated real estate
This line represents the gain recorded in each year for undeveloped land parcels that were sold. The parcels are not included in discontinued operations since they were not developed prior to sale. We sold seven land parcels in 2007 and three in 2006.
Gain on termination of purchase contract
We held a fifty percent economic interest in an approximately 141,724 square foot office building located at 101 Paragon Drive, Montvale, New Jersey. The remaining fifty percent interest was held by Donald E. Axinn, one of the Company’s Trustees. Although we and Mr. Axinn had each committed to provide one half of the $11 million necessary to repay the mortgage loan secured by this property at the maturity of the loan, in February 2006 an unaffiliated third party entered into an agreement to purchase this property for $18.3 million. As a result of the purchase by an unaffiliated third party during August 2006, we recognized a $3.1 million gain on termination of our under a 1998 contribution agreement, modified in 2005, that entitled us to the fifty percent interest in the joint venture to operate the property.

-48-


Minority Interest-partners’ share of consolidated Real Estate Ventures
Minority interest-partners’ share of consolidated Real Estate Ventures represents the portion of income from our consolidated Real Estate Ventures that is allocated to our minority interest partners.
As of December 31, 2007 we held an ownership interest in three properties through consolidated Real Estate Ventures, compared to 14 properties owned by consolidated Real Estate Ventures at December 31, 2006.
On March 1, 2007, we acquired the 49% minority interest in one of our consolidated real estate ventures that owned 10 office properties containing an aggregate of 1.1 million net rentable square feet for a purchase price of $63.7 million.
Minority Interest attributable to continuing operations — LP units
Minority interest attributable to continuing operations — LP units, represents the equity in loss (income) attributable to the portion of the Operating Partnership not owned by us. Minority interests owned 4.2% and 4.6% of the Operating Partnership as of December 31, 2007 and 2006, respectively.
Discontinued Operations
During 2007, we sold one property in East Norriton, PA, five properties in Dallas, TX, 11 properties in Reading and Harrisburg, PA, one in Voorhees, NJ, one property in West Norriton, PA and one property in Newark, DE. These properties had total revenue of $14.6 million, operating expenses of $11.4 million, gains on sale of $25.7 million and minority interest attributable to discontinued operations of $1.2 million.
The December 31, 2006 amount is reclassified to include the operations of the properties sold during 2007, as well as the 23 properties that were sold during the year ended December 31, 2006. Therefore, the discontinued operations amount for the year-ended 2006 includes 43 properties with total revenue of $92.7 million, operating expenses of $79.3 million, interest expense of $0.8 million and minority interest of $1.9 million. The eight properties that were sold in the first quarter of 2006 did not have gains on sale since such properties were acquired as part of the Prentiss merger and the value ascribed to those properties in purchase accounting was approximately the fair value amount for which the properties were sold.
Net Income
Net income increased by $47.5 million from 2006 primarily as a result of an increase of $22.6 million in Operating Income and the gain on disposition of depreciated real estate of $40.5 million noted above. These increases are offset by the gain on sale of undepreciated real estate of $14.2 million and gain on termination of our purchase contract of $3.1 million earned in 2006. Net income is significantly impacted by depreciation of operating properties and amortization of acquired intangibles. These charges do not affect our ability to pay dividends and may not be comparable to those of other real estate companies. Such charges can be expected to continue until the values ascribed to the lease intangibles are fully amortized. These intangibles are amortizing over the related lease terms or estimated duration of the tenant relationship.
Earnings per Common Share
Earnings per share (diluted and basic) were $0.56 for 2007 as compared to (diluted and basic) of $0.03 for 2006 as a result of the factors described above and a decrease in the average number of common shares outstanding. The decrease in the average number of common shares outstanding is the result of 1.8 million shares repurchased in 2007 and 1.2 million shares that we repurchased in 2006. This decrease in the number of shares was partially offset by the issuance of shares upon option exercises and restricted share vesting.

-49-


RESULTS OF OPERATIONS
Comparison of the Year Ended December 31, 2006 to the Year Ended December 31, 2005
The table below shows selected operating information for the Same Store Properties and the Total Portfolio. The Same Store Properties consists of 234 properties containing an aggregate of approximately 17.5 million net rentable square feet that we owned for the entire twelve-month periods ended December 31, 2006 and 2005. This table also includes a reconciliation from the Same Store Properties to the Total Portfolio (i.e., all properties owned by us as of December 31, 2006 and 2005) by providing information for the properties which were acquired, sold, or placed into service and administrative/elimination information for the years ended December 31, 2006 and 2005.
The Total Portfolio net income presented in the table agrees to the net income of Brandywine Realty Trust. The only difference between the reported net income of Brandywine Realty Trust and Brandywine Operating Partnership is the allocation of the minority interest attributable to continuing and discontinued operations for limited partnership units of the Operating Partnership that is reflected in the statement of operations for Brandywine Realty Trust.

-45--50-


                                                         
                  Acquired  Development  Other/    
  Same Store Properties  Properties  Properties (a)  Eliminations (b)  All Properties 
          Increase/  %                                  Increase/  % 
(dollars in thousands) 2006  2005  (Decrease)  Change  2006  2005  2006  2005  2006  2005  2006  2005  (Decrease)  Change 
Revenue:                                                        
Cash rents $296,811  $292,439  $4,372   1.5% $200,753  $1,342  $24,163  $8,400  $(912) $297  $520,815  $302,478  $218,337   72.2%
Straight-line rents  8,636   11,141   (2,505)  -22.5%  9,111   165   11,504   2,984         29,251   14,290   14,961   104.7%
Rents — FAS 141  2,713   1,546   1,167   75.5%  7,405   (33)  (249)  (243)  1   180   9,870   1,450   8,420   580.7%
                                           
Total rents  308,160   305,126   3,034   1.0%  217,269   1,474   35,418   11,141   (911)  477   559,936   318,218   241,718   76.0%
Tenant reimbursements  48,086   46,705   1,381   3.0%  28,698   98   3,007   1,130   679   629   80,470   48,562   31,908   65.7%
Other (c)  9,499   8,153   1,346   16.5%  2,195      108   613   10,593   5,078   22,395   13,844   8,551   61.8%
                                           
                                                        
Total revenue  365,745   359,984   5,761   1.6%  248,162   1,572   38,533   12,884   10,361   6,184   662,801   380,624   282,177   74.1%
                                                         
Operating Expenses:                                                        
Property operating expenses  114,455   112,656   1,799   1.6%  72,798   552   14,454   7,614   (13,706)  (9,630)  188,001   111,192   76,809   69.1%
Real estate taxes  36,682   34,387   2,295   6.7%  24,422   190   4,124   3,320   356   283   65,584   38,180   27,404   71.8%
                                           
Subtotal  151,137   147,043   4,094   2.8%  97,220   742   18,578   10,934   (13,350)  (9,347)  253,585   149,372   104,213   69.8%
                                                         
Net operating income  214,608   212,941   1,667   0.8%  150,942   830   19,955   1,950   23,711   15,531   409,216   231,252   177,964   77.0%
 
Administrative expenses           0.0%              29,647   17,982   29,647   17,982   11,665   64.9%
Depreciation and amortization  113,247   101,074   12,173   12.0%  117,175   461   15,313   5,326   2,394   2,257   248,129   109,118   139,011   127.4%
                                           
Operating Income (loss) $101,361  $111,867  $(10,506)  -9.4% $33,767  $369  $4,642  $(3,376) $(8,330) $(4,708) $131,440  $104,152  $27,288   26.2%
                                                         
Number of properties  234               62       17               313             
Square feet (in thousands)  17,533               11,261       2,970               31,764             
                                                         
Other Income (Expense):                                                        
Interest income                                          9,513   1,370   8,143   594%
Interest expense                                          (171,177)  (70,152)  (101,025)  144%
Interest expense — Deferred Financing Costs                                          (4,607)  (3,766)  (841)  22%
Equity in income of real estate ventures                                          2,165   3,172   (1,007)  -32%
Net gain on sales of interests in real estate                                          14,190   4,640   9,550   206%
Gain on termination of purchase contract                                          3,147      3,147   100%
                                                     
Income (loss) before minority interest                                          (15,329)  39,416   (54,745)  -139%
Minority interest — partners’ share of consolidated real estate ventures                                          270      270   100%
Minority interest attributable to continuing operations — LP units                                          1,028   (1,237)  2,265   183%
                                                     
Income (loss) from continuing operations                                          (14,031)  38,179   (52,210)  -137%
Income (loss) from discontinued operations                                          24,513   4,588   19,925   434%
                                                     
Net Income (loss)                                         $10,482  $42,767  $(32,285)  -75%
                                                     
Earnings per common share                                         $0.03  $0.62  $(0.59)  -95%
                                                     
EXPLANATORY NOTES
                                                 
              Acquired  Development  Other/   
  Same Store Properties Properties  Properties (a)  Eliminations (b)  All Properties
          Increase/                                  Increase/ 
(dollars in thousands) 2006  2005  (Decrease)  2006  2005  2006  2005  2006  2005  2006  2005  (Decrease) 
Revenue:                                                
Cash rents $296,811  $292,439  $4,372  $200,753  $1,342  $24,163  $8,400  $(912) $297  $520,815  $302,478  $218,337 
Straight-line rents  8,636   11,141   (2,505)  9,111   165   11,504   2,984         29,251   14,290   14,961 
Rents - FAS 141  2,713   1,546   1,167   7,405   (33)  (249)  (243)  1   180   9,870   1,450   8,420 
                                     
Total rents  308,160   305,126   3,034   217,269   1,474   35,418   11,141   (911)  477   559,936   318,218   241,718 
Tenant reimbursements  48,086   46,705   1,381   28,698   98   3,007   1,130   679   629   80,470   48,562   31,908 
Other (c)  9,499   8,153   1,346   2,195      108   613   10,593   5,078   22,395   13,844   8,551 
                                     
Total revenue  365,745   359,984   5,761   248,162   1,572   38,533   12,884   10,361   6,184   662,801   380,624   282,177 
                                                 
Operating Expenses:                                                
Property operating expenses  114,455   112,656   1,799   72,798   552   14,454   7,614   (13,706)  (9,630)  188,001   111,192   76,809 
Real estate taxes  36,682   34,387   2,295   24,422   190   4,124   3,320   356   283   65,584   38,180   27,404 
                                     
Subtotal  151,137   147,043   4,094   97,220   742   18,578   10,934   (13,350)  (9,347)  253,585   149,372   104,213 
     
Net operating income  214,608   212,941   1,667   150,942   830   19,955   1,950   23,711   15,531   409,216   231,252   177,964 
     
Administrative expenses                       29,647   17,982   29,647   17,982   11,665 
Depreciation and amortization  113,247   101,074   12,173   117,175   461   15,313   5,326   2,394   2,257   248,129   109,118   139,011 
                                     
     
Operating Income (loss) $101,361  $111,867  $(10,506) $33,767  $369  $4,642  $(3,376) $(8,330) $(4,708) $131,440  $104,152  $27,288 
                                                 
Number of properties  234           62       17               313         
Square feet (in thousands)  17,533           11,261       2,970               31,764         
                                                 
Other Income (Expense):                                                
Interest income                                      9,513   1,370   8,143 
Interest expense                                      (171,177)  (70,152)  (101,025)
Interest expense — Deferred Financing Costs                                      (4,607)  (3,766)  (841)
Equity in income of real estate ventures                                      2,165   3,172   (1,007)
Net gain on sales of interests in real estate                                      14,190   4,640   9,550 
Gain on termination of purchase contract                                      3,147      3,147 
                                              
Income (loss) before minority interest                                      (15,329)  39,416   (54,745)
Minority interest - partners’ share of consolidated real estate ventures                                      270      270 
Minority interest attributable to continuing operations — LP units                                      1,028   (1,237)  2,265 
                                              
Income (loss) from continuing operations                                      (14,031)  38,179   (52,210)
Income (loss) from discontinued operations                                      24,513   4,588   19,925 
                                              
Net Income (loss)                                     $10,482  $42,767  $(32,285)
                                              
Earnings per common share                                     $0.03  $0.62  $(0.59)
                                              
 
EXPLANATORY NOTES
(a)- Results include: nine developments/redevelopments, four lease-up assets and three properties placed in service
 
(b)- Represents certain revenues and expenses at the corporate level as well as various intercompany costs that are eliminated in consolidation and third-party management fees
 
(c)- Includes net termination fee income of $6,133 for 2006 and $5,583 for 2005 for the same store property portfolio and $948 for 2006 for the acquired properties

-46--51-


Total Revenue
Revenue increased by $282.2 million primarily due to the acquired properties (primarily Prentiss), which represents $246.6 million of this increase. The increase is also the result of 4 properties placed in service, including Cira Centre, which contributed $25.7 million to this increase.
The increase in total revenue from our same store properties of $5.8 million is primarily attributable to increased occupancy as well as increased tenant reimbursements resulting from higher property operating expenses.
Operating Expenses and Real Estate Taxes
Property operating expenses increased by $76.3 million primarily due to the acquisition of Prentiss and other properties, which represents $72.2 million of this increase. Property operating expenses attributable to the increased occupancy of Cira Centre and other completed developments resulted in an additional $6.8 million of property operating expense.
Real estate taxes increased by $27.4 million primarily due to the acquisition of Prentiss and other properties, which represents $24.2 million of this increase. The remainder of the increase primarily is the result of increased real estate tax assessments in our same store portfolio and properties placed in service.
Depreciation and Amortization Expense
Depreciation and amortization increased by $139.0 million primarily due to the acquisition of Prentiss and other properties, which increased total portfolio depreciation expense by $116.7 million. A significant portion of the increase, $11.9 million, is also due to accelerated depreciation expense associated with the demolition of one of our properties as part of an office park development in suburban Philadelphia. This property was part of our same store portfolio; therefore the remaining increase in depreciation and amortization for our same store portfolio is $0.3 million. This increase resulted from the timing of assets being placed in service upon completion of tenant improvement and capital improvement projects subsequent to the end of the nine month period ending September 30, 2005. The depreciation and amortization for our development properties increased by $10.0 million as a result of timing of the properties being completed and placed into service.
Administrative Expenses
Administrative expenses increased by approximately $11.9 million primarily due to the acquisition of Prentiss. Of this increase, $3.6 million was primarily attributable to increased payroll and related costs associated with employees that we hired as part of the acquisition of Prentiss. We also incurred an additional $4.1 million in professional fees in connection with our merger integration activities. The remainder of the increase reflects other increased costs of the combined companies which includes an increase in deferred compensation expense of $2.2 million.
Interest Income/ Expense
Interest expense and deferred financing costs increased by approximately $101.9 million primarily as a result of 14 fixed rate mortgages, three unsecured notes, and one note secured by U.S. treasury notes (“PPREFI debt”) that we assumed or entered into to finance the Prentiss merger. The mortgages assumed have maturity dates ranging from 2009 through 2016 and the unsecured notes have maturities ranging from 2008 through 2035.
The PPREFI debt had a maturity of February 2007, but we elected to prepay this debt in November 2006.
The PPREFI debt was defeased by Prentiss in the fourth quarter of 2005 and was secured by an investment in U.S. treasury notes. The interest earned on the treasury notes is included in interest income and

-47--52-


substantially offsets the amount of interest expense incurred on the PPREFI debt, resulting in an immaterial amount of net interest expense incurred. The increase of $8.1 million in interest income is primarily attributable to the interest income earned on these treasury notes.
See the Notes to Consolidated Financial in Part IV, Item 15 for details of our mortgage indebtedness and unsecured notes outstanding.
Gain on termination of purchase contract
We held a fifty percent economic interest in an approximately 141,724 square foot office building located at 101 Paragon Drive, Montvale, New Jersey. The remaining fifty percent interest was held by Donald E. Axinn, one of the Company’s Trustees. Although we and Mr. Axinn had each committed to provide one half of the $11 million necessary to repay the mortgage loan secured by this property at the maturity of the loan, in February 2006 an unaffiliated third party entered into an agreement to purchase this property for $18.3 million. As a result of the purchase by an unaffiliated third party during August 2006, we recognized a $3.1 million gain on termination of itsour rights under a 1998 contribution agreement, modified in 2005, that entitled the Partnershipus to the 50%fifty percent interest in the joint venture to operate the property.
Minority Interest-partners’ share of consolidated real estate ventures
Minority interest-partners’ share of consolidated real estate ventures represents the portion of income from our consolidated joint ventures that is allocated to our minority interest partners.
As of December 31, 2006 we held an ownership interest in 15 properties through consolidated Real Estate Ventures, compared to two properties owned by consolidated Real Estate Ventures at December 31, 2005.
Minority Interest attributable to continuing operations LP units
Minority interest attributable to continuing operations LP units represents the equity in loss (income) attributable to the portion of the Operating Partnership not owned by us. The increase from the prior year is primarily the result of the fact that at December 31, 2006 the LP units share in our net loss from continuing operations compared to their share of net income from continuing operations in the prior year. Minority interests owned 4.6% and 3.4% of the Operating Partnership as of December 31, 2006 and 2005, respectively. The change in minority interest ownership is primarily the result of the Class A units that we issued in the Prentiss acquisition.
Discontinued Operations
Income from discontinued operations increased by $19.9 million from the prior year as a result of the sale of eight properties in Chicago, IL, five in Dallas, TX, and one in Allen, TX that we acquired in the Prentiss acquisition. We also sold five properties that were previously included in our same store portfolio. These 19 properties combined had net income of $7.7 million and gain on sale of $20.2 million during the year ended December 31, 2006 before minority interest. Included in the gain on sale amount was $1.8 million attributable to minority interest in the Chicago property that was sold by one of our consolidated Real Estate Ventures.
Net Income
Net income declined by $32.3 million in the year ended December 31, 2006, compared to the same period in 2005 as increased revenues in 2006 were offset by increases in operating expenses (primarily depreciation and amortization) and financing costs. All major financial statement captions increased as a result of our acquisition of Prentiss and the related financing required to complete the transaction. A significant element of these increases relate to additional depreciation and amortization charges from the significant property additions (including both the TRC acquisition in 2004 and the Prentiss acquisition) and

-48-


the values ascribed to related acquired intangibles (e.g., in-place leases). These charges do not affect our

-53-


ability to pay dividends and may not be comparable to those of other real estate companies that have not made such acquisitions. Such charges can be expected to continue until the values ascribed to the lease intangibles are fully amortized. These intangibles are amortizing over the related lease terms or estimated tenant relationship. In addition, a significant portion of the decrease in net income is attributable to the $11.9 million in depreciation expense described in the Depreciation and Amortization Expense section above.
Earnings per Common Share
Earnings per common share of $0.03 for the year ended December 31, 2006 as compared to earnings per common share of $0.62 in 2005 declined as a result of the factors described in “Net Income” above and an increase in the average number of common shares outstanding. We issued 34.6 million common shares in our acquisition of Prentiss.
Comparison of the Year Ended December 31, 2005 to the Year Ended December 31, 2004
The table below shows selected operating information for the Same Store Property Portfolio and the Total Portfolio. The Same Store Property Portfolio consists of 226 Properties containing an aggregate of approximately 15.0 million net rentable square feet that we owned for the entire twelve-month periods ended December 31, 2005 and 2004. This table also includes a reconciliation from the Same Store Property Portfolio to the Total Portfolio (i.e., all properties owned by us as of December 31, 2005 and 2004) by providing information for the properties which were acquired, sold, or placed into service and administrative/elimination information for the years ended December 31, 2005 and 2004.

-49-


                                                         
                  Acquired  Development  Other/    
  Same Store Properties  Properties (a)  Properties  Eliminations (b)  All Properties 
          Increase/  %                                  Increase/  % 
(dollars in thousands) 2005  2004  (Decrease)  Change  2005  2004  2005  2004  2005  2004  2005  2004  (Decrease)  Change 
Revenue:                                                        
Rents $245,234  $248,725   (3,491)  -1.4% $75,500  $22,177  $7,338  $4,729  $0  $0  $328,072  $275,631  $52,441   19.0%
Tenant reimbursements  37,071   34,037   3,034   8.9%  11,460   3,040   753   549   225   (54)  49,509   37,572   11,937   31.8%
Other  7,329   3,967   3,362   84.7%  907   326   594   60   5,049   7,665   13,879   12,018   1,861   15.5%
                                           
Total revenue  289,634   286,729   2,905   1.0%  87,867   25,543   8,685   5,338   5,274   7,611   391,460   325,221   66,239   20.4%
                                                         
Operating Expenses:                                                        
Property operating expenses  91,423   88,266   3,157   3.6%  30,079   7,883   3,615   2,218   (10,241)  (8,510)  114,876   89,857   25,019   27.8%
Real estate taxes  28,814   27,399   1,415   5.2%  9,402   2,563   1,164   1,069   31   31   39,411   31,062   8,349   26.9%
                                           
Subtotal  120,237   115,665   4,572   4.0%  39,481   10,446   4,779   3,287   (10,210)  (8,479)  154,287   120,919   33,368   27.6%
                                                         
Net Operating Income  169,397   171,064   (1,667)  -1.0%  48,386   15,097   3,906   2,051   15,484   16,090   237,173   204,302   32,871   16.1%
                                                         
Administrative expenses           0.0%              17,982   15,100   17,982   15,100   2,882   19.1%
Depreciation and amortization  68,744   63,968   4,776   7.5%  38,776   13,221   3,313   1,669   1,053   1,046   111,886   79,904   31,982   40.0%
                                           
 
Operating Income  100,653   107,096   (6,443)  -6.0%  9,610   1,876   593   382   (3,551)  (56)  107,305   109,298   (1,993)  -1.8%
 
Other Income (Expense):                                                        
Interest income                                          1,376   840   536   63.8%
Interest expense                                          (74,363)  (55,061)  (19,302)  35.1%
Equity in income of real estate ventures                                          3,172   2,024   1,148   56.7%
Net gain on sales of interest in real estate                                          4,640   2,975   1,665   56.0%
                                                     
Income before minority interest                                          42,130   60,076   (17,946)  -29.9%
Minority interest attributable to continuing operations                                          (1,331)  (2,472)  1,141   -46.2%
                                                     
Income from continuing operations                                          40,799   57,604   (16,805)  -29.2%
Income from discontinued operations                                          1,968   2,699   (731)  -27.1%
                                                     
Net income                                          42,767   60,303   (17,536)  -29.1%
                                                     
Earnings per common share                                         $0.62  $1.15  $(0.53)  -46.1%
                                                     
EXPLANATORY NOTES
(a)- Represents the operations of properties acquired that are not included in the definition of the Same Store Property Portfolio, primarily the TRC properties acquired on September 21, 2004.
(b)- Represents certain revenue and expenses at the corporate level as well as various intercompany costs that are eliminated in consolidation.

-50-


Revenue
Revenue increased by $66.2 million primarily due to properties that were acquired in 2005 and a full year of operations of those properties acquired in 2004, primarily the TRC Properties acquired in September 2004. Revenue for Same Store Properties increased by $2.9 million due to increased tenant reimbursement revenue resulting from increased property operating expenses in 2005 as compared to 2004. Other revenue represents lease termination fees, bankruptcy settlement proceeds, leasing commissions and third-party management fees. Total Portfolio other revenue increased by $1.9 million in 2005 primarily due to an increase in net termination fees associated with tenant terminations in 2005 offset by the settlement of a previously disclosed litigation in 2004 ($1.0 million plus accrued interest on our security deposit that was released).
Operating Expenses and Real Estate Taxes
Property operating expenses increased by $25.0 million in 2005 primarily due to properties acquired in 2005 and a full year of operations of properties acquired in 2004 as well as increased repairs and maintenance costs, snow removal costs, electric expense, security expense, janitorial costs and HVAC maintenance expense at existing properties in our same store property portfolio and our development properties.
Real estate taxes increased by $8.3 million primarily due to properties acquired in 2005 and a full year of real estate taxes for our properties acquired in 2004 as well as increased real estate tax assessments in 2005 at existing properties in our same store property portfolio and our development properties as a result of higher tax rates and property assessments.
Interest Expense
Interest expense increased by $19.3 million in 2005 primarily due to: (i) an increase in average debt as a result of debt incurred to finance our acquisitions in 2005/2004 and our increased development activity and (ii) an increase in average rates on debt outstanding as a result of the increase in LIBOR rates on our credit facilities. These increases were partially offset by an increase in the amount of interest capitalized which is primarily attributable to our development of Cira Centre.
Depreciation and Amortization Expense
Depreciation and amortization expense increased by $32.0 million in 2005 primarily due to properties acquired in 2005, a full year of depreciation and amortization of properties acquired during 2004 and additional amortization from tenant improvements and leasing commissions paid during 2005. Depreciation and amortization expense for the same store properties increased by $4.8 million primarily as a result of the write-off of tenant improvements and intangibles for spaces that were vacated during 2005.
Administrative Expenses
Administrative expenses increased by $2.9 million in 2005 primarily due to increased payroll and related costs associated with employees that we hired as part of our TRC acquisition in September 2004, higher compensation and benefits costs for employees and increased spending on process and technology improvements.
Equity in Income of Real Estate Ventures
Equity in income of Real Estate Ventures increased by $1.1 million in 2005 as a result of increased net income from the Real Estate Ventures. The increased net income resulted from the sale of condominium units by one of the Real Estate Venture in 2005.

-51-


Net Gains on Sales of Interests in Real Estate
During 2005, we sold three parcels of land, realizing net gains totaling $4.6 million. The increase from the prior year of $1.6 million is a result of the value of the land parcels sold in each year compared to their carrying values at the time of sale.
Minority Interest
Minority interest from continuing operations represents the equity in income attributable to the portion of the Operating Partnership and the consolidated Real Estate Ventures not owned by us. Minority interest from continuing operations decreased by $1.1 million in 2005 primarily due to decreased net income from our Operating Partnership and a decrease in the minority interest ownership percentage.
Discontinued Operations
Discontinued operations decreased by $0.7 million in 2005 primarily due to the timing of property sales for assets included in discontinued operations in 2005 as compared to 2004.
Net Income
Net income declined in 2005 by $17.5 million as increased revenues were not sufficient to offset increases in operating and financing costs. All major financial statement captions increased as a result of the Company’s significant property acquisitions in fiscal 2004 and 2005 and the related financing required to complete those transactions. It should be noted that a significant element of these costs relate to additional depreciation and amortization charges relating to the significant property additions and the values ascribed to related acquired intangibles (e.g., in-place leases). These charges do not affect the Company’s ability to pay dividends and may not be comparable to those of other real estate companies that have not made such acquisitions. Such charges can be expected to continue until the values ascribed to the lease intangibles are fully amortized. These intangibles are amortizing over the related lease terms or estimated tenant relationship. The size of these non-cash charges are expected to increase in the future as a result of the Prentiss transaction.
Earnings per Common Share
Earnings per common share of $0.62 in 2005 as compared to earnings per common share of $1.15 in 2004 as a result of the factors described in net income above and an increase in the average number of shares outstanding as a result of offerings completed in 2004.
LIQUIDITY AND CAPITAL RESOURCES
General
Our principal liquidity needs for the next twelve months are as follows:
  fund normal recurring expenses,
 
  meet debt service requirements,
fund capital expenditures, including capital and tenant improvements and leasing costs,
 
  fund current development and redevelopment costs,
fund new property acquisitions, and
 
  fund distributions declared by our Board of Trustees.Trustees, including the minimum distribution required to maintain our REIT qualification under the Internal Revenue Code.
We believe that our liquidity needs will be satisfied through cash flows generated by operationsour operating and financing activities. Rental revenue, expense recoveries from tenants, and other income from operations are our principal sources of cash that we use to pay operating expenses, debt service, recurring capital expenditures and the minimum distributions required to maintain our REIT qualification. We seek to increase cash flows from our properties by maintaining quality standards for our properties that promote high occupancy rates and permit increases in rental rates while reducing tenant turnover and controlling operating expenses. Our revenue also

-52-


includes third-party fees generated by our property management, leasing, development and construction businesses. We believe our revenue, together with proceeds from equity and debt financings, will continue to provide funds for our short-term liquidity needs. However, material changes in our operating or financing activities may adversely affect our net cash flows. Such changes, in turn, would adversely affect our ability to fund distributions, debt service payments and tenant improvements. In addition, a material adverse change in our cash provided by operations would affect our compliance withthe financial performance covenants under our unsecured credit facility and unsecured notes.
Our principal liquidity needs for periods beyond twelve months are for costs of developments, redevelopments, property acquisitions, scheduled debt maturities, major renovations, expansions, leasing commissions, tenant improvements and other non-recurring capital improvements. We draw on multiple financing sources to fund our long-term capital needs. We use our credit facility for general business purposes, including the acquisition, development and redevelopment of properties and the repayment of other debt.
As In October 2007, we entered into a result of our acquisition of Prentiss, we have additional short and long-term liquidity requirements. Historically, we have satisfied these requirements principally through the most advantageous source of capital at that time, including public offerings of unsecured debt and private placements of secured and unsecured debt, sales of common and preferred equity, capital raised through the disposition of assets, and joint venture transactions. We believe these sources of capital will continue to be available to fund our capital needs.
We funded the approximately $1.05 billion cash portion of the Prentiss merger consideration, related transaction costs and prepayments of approximately $543.3 million in Prentiss mortgage debt at the closing of the merger through (i) a $750$150.0 million unsecured term loan, thatin April 2007 and March 2006, we repaidsold $300.0 million and $850.0 million, respectively of unsecured notes and in March 2006; (ii) approximately $676.5September and October 2006, we sold an aggregate of $345.0 million of cash from Prudential’s acquisitionexchangeable unsecured notes. As of Prentiss properties;December 31, 2007 we also had approximately $611.9 million of mortgage loans. We expect to continue to use the debt and (iii) approximately $195.0 million throughequity markets for our revolving credit facility.long-term capital needs.
Our ability to incur additional debt is dependent upon a number of factors, including our credit ratings, the value of our unencumbered assets, our degree of leverage and borrowing restrictions imposed by our current lenders. We currently have investment grade ratings for prospective unsecured debt offerings from

-54-


three major rating agencies. If a rating agency were to downgrade our credit rating, our access to capital in the unsecured debt market would be more limited and the interest rate under our existing credit facility and term loan would increase.
Our ability to sell common and preferred shares is dependent on, among other things, general market conditions for REITs, market perceptions about usour company and the current trading price of our shares. We regularly analyze which source of capital is most advantageous to us at any particular point in time. The equity markets may not be consistently available on terms that we consider attractive.
The asset sales during 2006 and 2007 have also been a significant source of cash. During 2007, we sold 49 properties containing an aggregate of 5.2 million net rentable square feet and eight land parcels containing an aggregate 56.2 acres for aggregate proceeds of $604.5 million. We have several options for the use of proceeds from asset sales, including the acquisition of assets in our core markets, repayment of debt and repurchase of our shares.
Cash Flows
The following summary discussion of our cash flows is based on the consolidated statement of cash flows included in our consolidated financial statements and is not meant to be an all-inclusive discussion of the changes in our cash flows for the periods presented.
As of December 31, 20062007 and 2005,2006, we maintained cash and cash equivalents of $25.4$5.6 million and $7.2$25.4 million, respectively. This $18.2$19.8 million increasedecrease was the result of the following changes in cash flow from our various activities:

-53-


                        
Activity 2006 2005 2004  2007 2006 2005 
Operating $241,566 $125,147 $152,890  $219,817 $241,566 $125,147 
Investing  (915,794)  (252,417)  (682,652) 44,473  (915,794)  (252,417)
Financing 692,433 119,098 536,556   (284,069) 692,433 119,098 
              
Net cash flows $18,205 $(8,172) $6,794  $(19,779) $18,205 $(8,172)
              
Our principal source of cash flows is from the operation of our properties. Our increasedThe decrease in cash flowflows from operating activities was primarily the result of the timing of the cash receipts from our tenants and cash expenditures in the normal course of operations of our properties. The decrease in cash from operations is primarily attributablealso a result of the timing of property sales during the year. As we have sold more properties than we have acquired in 2007, our acquisition of Prentiss.cash related to property operations has decreased.
The increasedecrease in ourcash outflows from investing activities in 2006 over 2005 iswas primarily attributable to our acquisition of Prentiss inon January 5, 2006 and other property and land acquisitions totalingduring year ended December 31, 2006 resulting in a cash outflow of $1,167.1 million. In addition,million compared to the $88.9 million outflow we incurred approximately $242.5during the year ended December 31, 2007 for acquisitions. During 2007, we acquired the ownership interest of our minority interest partner in a previously consolidated real estate venture for $63.7 million. These outflows were offset by net proceeds on property sales of $472.6 million of capital expendituresand $347.7 million for the properties that we own. These increases in investing activities are offset by the net proceeds of $257.6 million receivedyears ended December 31, 2007 and 2006, respectively.
Decreased cash flow from the sale of eight properties in Chicago and seven properties in Texas that we acquired in our acquisition of Prentiss and subsequently sold. We received net proceeds of $92.0 million from sales of properties and land in our same store portfolio. We redeemed marketable securities of $181.6 million that had been escrowed to secure a secured notes payable.
The increase in our financing activities in 2006 as compared to 2005 iswas primarily attributable to our repurchase of 1.8 million shares for $59.4 million during the year ended December 31, 2007 compared to our issuance in 2006 of $1,195.0$850.0 million of unsecured notes resultingfor the same period in net2006. During the year ended December 31, 2007, we repaid our $300.0 million 2009 three year floating rate note, issued in March 2006, using proceeds from our Credit Facility. We also issued $300.0 million of $1,186.0 million. Theunsecured notes during the year ended December 31, 2007 and used those proceeds wereto pay-down indebtedness on our Credit Facility. We also used to repay the $750.0 millionproceeds from the unsecured term loan of $150.0 million that we obtainedentered into in connection with our acquisition of Prentiss, as well asOctober 2007 to repay a portion of the outstanding borrowingspay-down indebtedness on our credit facility. This cash inflow is offset by our repurchase of common shares totaling $94.5 million and our four distribution payments totaling $151.1 million.Credit Facility.

-55-


Capitalization
Indebtedness
On October 15, 2007, we entered into a term loan agreement that provides for an unsecured term loan in the amount of $150.0 million. We used the proceeds to reduce outstanding indebtedness under our revolving credit facility. The term loan matures on October 18, 2010 and may be extended at our option for two one-year periods but not beyond the maturity date of our revolving credit facility.
On June 29, 2007, we amended our $600.0 million unsecured revolving credit facility (the “Credit Facility”). The amendment extended the maturity date of the Credit Facility from December 22, 2009 to June 29, 2011 (subject to an extension of one year, at our option, upon our payment of an extension fee equal to 15 basis points of the committed amount under the Credit Facility). The amendment also reduced the per annum variable interest rate on outstanding balances from Eurodollar plus 0.80% to Eurodollar plus 0.725% per annum. In addition, the amendment reduced the quarterly facility fee from 20 basis points to 17.5 basis points per annum. The interest rate and facility fee are subject to adjustment upon a change in our unsecured debt ratings. The amendment also lowered to 7.50% from 8.50% the capitalization rate used in the calculation of several of the financial covenants; increased our swing loan availability from $50.0 million to $60.0 million; and increased the number of competitive bid loan requests available to us from two to four in any 30 day period. Borrowings are always available to the extent of borrowing capacity at the stated rates, however, the competitive bid feature allows banks that are part of the lender consortium under the Credit Facility to bid to make loans to us at a reduced Eurodollar rate. We have the option to increase the Credit Facility to $800.0 million subject to the absence of any default and our ability to acquire additional commitments from our existing lenders or new lenders.
On April 30, 2007, we consummated the public offering of $300.0 million aggregate principal amount of unsecured 5.70% Guaranteed Notes due 2017 and used the net proceeds from this offering to reduce borrowings under the Credit Facility.
In April 2007, we entered into a $20.0 million Sweep Agreement to be used for cash management purposes. Borrowings under the Sweep Agreement bear interest at one-month LIBOR plus 0.75% per annum.
On November 29, 2006, we called for redemption of our $300.0 million Floating Rate Guaranteed Notes due 2009 and repaid these notes on January 2, 2007 in accordance with the November call using proceeds from our Credit Facility. As a result of the early repayment of these notes, we incurred accelerated amortization of $1.4 million in associated deferred financing costs in the fourth quarter 2006. We funded the prepayments of these notes from borrowings under our Credit Facility and there were no penalties associated with these prepayments.
On October 4, 2006, we sold $300.0 million aggregate principal amount of unsecured 3.875% Exchangeable Guaranteed Notes due 2026 in reliance upon an exemption from registration rights under Rule 144A under the Securities Act of 1933 and sold an additional $45.0 million of 3.875% Exchangeable Guaranteed Notes due 2026 on October 16, 2006 to cover over-allotments. We have registered the resale of the exchangeable notes. At certain times and upon certain events, the notes are exchangeable for cash up to their principal amount and, with respect to the remainder, if any, of the exchange value in excess of such principal amount, cash or our common shares. The initial exchange rate is 25.4065 shares per $1,000 principal amount of notes (which is equivalent to an initial exchange price of $39.36 per share). We may not redeem the notes prior to October 20, 2011 (except to preserve our status as a REIT for U.S. federal income tax purposes), but we may redeem the notes at any time thereafter, in whole or in part, at a redemption price equal to the principal amount of the notes to be redeemed plus accrued and unpaid interest. In addition, on October 20, 2011, October 15, 2016 and October 15, 2021 as well as upon the occurrence of certain change in control transactions prior to October 20, 2011, holders of notes may require us to repurchase all or a portion of the notes at a purchase price equal to the principal amount of the notes to be purchased plus accrued and unpaid interest. We used net proceeds from the notes to repurchase

-56-


approximately $60.0 million of common shares at a price of $32.80 per share and for general corporate purposes, including the repayment of outstanding borrowings under the Credit Facility.
On March 28, 2006, we consummated the public offering of $850.0 million of unsecured notes, consisting of (1) $300.0 million aggregate principal amount of Floating Rate Guaranteed Notes due 2009, (2) $300.0 million aggregate principal amount of 5.75% Guaranteed Notes due 2012 and (3) $250.0 million aggregate principal amount of 6.00% Guaranteed Notes due 2016. We used the net proceeds from this offering to repay a $750.0 million unsecured term loan and to reduce borrowings under the Credit Facility.
The Operating Partnership is the issuer of our unsecured notes, and Brandywine Realty Trust has fully and unconditionally guaranteed the payment of principal and interest on the notes.
As of December 31, 2006,2007, we had approximately $3.16$3.1 billion of outstanding indebtedness. The table below summarizes our mortgage notes payable, our unsecured notes, and our revolving credit facility at December 31, 20062007 and 2005:2006:
                
 December 31  December 31 
 2006 2005  2007 2006 
 (dollars in thousands)  (dollars in thousands) 
Balance:
  
Fixed rate $2,718,171 $1,417,611  $2,741,632 $2,718,171 
Variable rate 439,162 103,773  359,337 439,162 
          
Total $3,157,333 $1,521,384  $3,100,969 $3,157,333 
          
  
Percent of Total Debt:
  
Fixed rate  86.1%  93.2%  88.4%  86.1%
Variable rate  13.9%  6.8%  11.6%  13.9%
          
Total  100%  100%  100%  100%
          
 
Weighted-average interest rate at period end:
  
Fixed rate  5.6%  5.9%  5.5%  5.6%
Variable rate  6.0%  5.3%  5.8%  6.0%
Total  5.6%  5.7%
The variable rate debt shown above generally bears interest based on various spreads over a LIBOR (the term of which we select). The December 31, 2006 fixed rate balance includes $90.0 million of variable rate debt that is effectively fixed at 6% via an interest rate hedge.

-54-


Unsecured Credit Facilityperiodically selected by us.
We use credit facility borrowings for general business purposes, including the acquisition, development and redevelopment of properties and the repayment of other debt. In December 2005,we replaced our then existing unsecured credit facility with a $600 million unsecured credit facility (the “Credit Facility”) that matures in December 2009, subject to a one year extension option upon payment of a fee and the absence of any defaults. Borrowings under the new Credit Facility generally bear interest at LIBOR (LIBOR was 5.33% as of December 31, 2006) plus a spread over LIBOR ranging from 0.55% to 1.10% based on our unsecured senior debt rating. We have an option to increase the maximum borrowings under the Credit Facility to $800 million subject to the absence of any defaults and our ability to obtain additional commitments from our existing or new lenders.
Our interest rate incurred under our revolving credit facility and term loan is subject to modification depending on our rating status with qualified agencies.
As of December 31, 2006,2007, we had $60$120 million of borrowings and $24$13.5 million of letters of credit outstanding under the Credit Facility, leaving $516$466.5 million of unused availability. On January 2, 2007, we used $300 million of borrowings under the Credit Facility to payoff the $300 million unsecured floating rate notes due 2009; notice of this payoff was given in November 2006. For the years ended December 31, 20062007 and 2005,2006, our weighted average interest rates, including the effects of interest rate hedges discussed in Note 129 to the consolidated financial statements included herein, and including both the new Credit Facility and prior credit facility, were 5.93%6.25% and 4.585.93 % per annum, respectively.

-57-


The Credit Facility contains financial and non-financial covenants, including covenants that relate to our incurrence of additional debt; the granting of liens; consummation of mergers and consolidations; the disposition of assets and interests in subsidiaries; the making of loans and investments; and the payment of dividends. The restriction on dividends permits us to pay dividends into the greater of (i) an amount required for us to retain our qualification as a REIT and (ii) otherwise limits dividends to 90%95% of our funds from operations. The Credit Facility also contains financial covenants that require us to maintain an interest coverage ratio, a fixed charge coverage ratio, an unsecured debt ratio and an unencumbered cash flow ratio above certain specified minimum levels; to maintain net worth above an amount determined on a specified formula; and to maintain a leverage ratio and a secured debt ratio below certain maximum levels. Another financial covenant limits the ratio of unsecured debt to unencumbered properties. We were in compliance with all financial covenants as of December 31, 2006.
Unsecured Notes
On March 28, 2006, the Operating Partnership consummated the public offering of (1) $300,000,000 aggregate principal amount of its unsecured floating rate notes due 2009, (2) $300,000,000 aggregate principal amount of its 5.75% notes due 2012 and (3) $250,000,000 aggregate principal amount of its 6.00% notes due 2016. The Company guaranteed the payment of principal and interest on these notes.
On October 4, 2006, we completed an offering of $300.0 million aggregate principal amount of 3.875% senior convertible notes due 2026 in an offering made in reliance upon an exemption from registration rights under Rule 144A under the Securities Act of 1933 and issued an additional $45 million of exchangeable notes on October 16, 2006 to cover over-allotments. At certain times and upon the occurrence of certain events, the notes are convertible into cash up to their principal amount and, with respect to the remainder, if any, of the conversion value in excess of such principal amount, cash or shares of the Company’s common stock. The initial conversion rate will be 25.4065 shares per $1,000 principal amount of notes (which is equivalent to an initial conversion price of $39.36 per share). The notes may not be redeemed by us prior to October 20, 2011 (except to preserve the Company’s status as a REIT for U.S, federal income tax purposes), but are redeemable anytime thereafter, in whole or in part, at a redemption price equal to the principal amount of the notes plus any accrued and unpaid interest (including additional interest), if any. In addition, on October 20, 2011, October 15, 2016, and October 15, 2021, or upon the occurrence of certain change in control transactions prior to October 20, 2011, note holders may require us to repurchase all or a portion of the notes at a purchase price equal to the principal amount plus any accrued and unpaid interest on the notes. Net proceeds from the October 2006 Debt Offering were used to repurchase approximately $60.0 million of the Company’s common stock at a price of $32.80 per share and for general corporate purposes, including the repayment of outstanding borrowings under our unsecured revolving credit facility.

-55-


On November 29, 2006, we gave notice of redemption of the $300 million floating rate guaranteed notes due 2009 issued by the Operating Partnership and repaid these notes on March 28, 2006. The Operating Partnership repaid the 2009 Notes on January 2, 2007 and incurred accelerated amortization of the associated deferred financing costs of $1.4 million in the fourth quarter 2006 after giving prepayment notice in November 2006.2007.
The indenture relating tounder which we issued our unsecured notes, contains variousand the note purchase agreement that governs an additional $113.0 million of 4.34% unsecured notes that mature in December 2008, contain financial restrictions and requirements,covenants, including (1) a leverage ratio not to exceed 60%, (2) a secured debt leverage ratio not to exceed 40%, (3) a debt service coverage ratio of greater than 1.5 to 1.0 and (4) an unencumbered asset value of not less than 150% of unsecured debt. In addition, the note purchase agreement relating to our $113 million unsecured notes that matureWe were in 2008 containscompliance with all covenants that are similar to the above covenants.
Unsecured Term Loans
On March 28, 2006, we terminated and repaid all amounts outstanding under the $750 million term loan agreement that we had entered into on January 5, 2006 in connection with our acquisition of Prentiss.

-56-


Mortgage Indebtedness
The following table sets forth information regarding our mortgage indebtedness outstanding at December 31, 2006 and 2005:
                 
          Effective    
  December 31,  December 31,  Interest Rate  Maturity 
Property / Location 2006  2005  @ 12/31/06  Date 
111 Arrandale Blvd $  $1,043     Aug-06
429 Creamery Way     2,927     Sep-06
Interstate Center  552   766   6.19%(b) Mar-07
440 & 442 Creamery Way  5,421   5,581   8.55% Jul-07
Norriton Office Center     5,191   8.50% Oct-07
481 John Young Way  2,294   2,360   8.40% Nov-07
400 Commerce Drive  11,797   11,989   7.12% Jun-08
Two Logan Square  71,348   72,468   5.78%(a) Jul-09
The Bluffs  10,700      6.00%(a) Jul-09
Pacific Ridge  14,500      6.00%(a) Aug-09
Pacific View/Camino  26,000      6.00%(a) Aug-09
Computer Associates Building  31,000      6.00%(a) Aug-09
200 Commerce Drive  5,841   5,911   7.12%(a) Jan-10
Presidents Plaza  30,900      6.00%(a) May-10
1333 Broadway  24,418      5.18%(a) May-10
The Ordway  46,199      7.95%(a) Aug-10
World Savings Center  27,524      7.91%(a) Nov-10
Plymouth Meeting Exec.  44,103   44,687   7.00%(a) Dec-10
Four Tower Bridge  10,626   10,763   6.62% Feb-11
Arboretum I, II, III & V  22,750   23,238   7.59% Jul-11
Midlantic Drive/Lenox Drive/DCC I  62,678   63,803   8.05% Oct-11
Research Office Center  42,205      7.64%(a) Oct-11
Concord Airport Plaza  38,461      7.20%(a) Jan-12
Six Tower Bridge  14,744   15,083   7.79% Aug-12
Newtown Square/Berwyn Park/Libertyview  63,231   64,429   7.25% May-13
Coppell Associates  3,737      6.89% Dec-13
Southpoint III  4,949   5,431   7.75% Apr-14
Tysons Corner  100,000      4.84%(a) Aug-15
Coppell Associates  16,600      5.75% Mar-16
Grande A  59,513   61,092   7.48% Jul-27
Grande A     11,456     Jul-27
Grande A     1,551     Jul-27
Grande B  77,535   79,036   7.48% Jul-27
               
Principal balance outstanding  869,626   488,805         
Plus: unamortized fixed-rate debt premiums  14,294   5,972         
               
Total mortgage indebtedness $883,920  $494,777         
               
(a)Loans were assumed upon acquisition of the related property. Interest rates presented above reflect the market rate at the time of acquisition.
(b)For loans that bear interest at a variable rate, the rates in effect at December 31, 2006 have been presented.
The mortgage note payable balance of $5.1 million for Norriton Office Center as of December 31, 2006,2007.
We have mortgage loans that are collateralized by certain of our properties. Payments on mortgage loans are generally due in monthly installments of principal and interest, or interest only.
We intend to refinance or repay our mortgage loans as they mature, primarily through the use of unsecured debt or equity.
Our charter documents do not includedlimit the amount or form of indebtedness that we may incur, and our policies on debt incurrence are solely within the discretion of our Board, subject to financial covenants in the table above, is included in Mortgage notes payableCredit Facility, indenture and other liabilities held for sale on the balance sheet.credit agreements.
Guaranties.As of December 31, 2006,2007, we had guaranteed repayment of approximately $0.6$0.3 million of loans on behalf of certain Real Estate Ventures. See Item 2. Properties Real Estate Ventures. We also provide customary environmental indemnities and completion guarantees in connection with construction and permanent financing both for our own account and on behalf of certain of the Real Estate Ventures.

-57-


Share Repurchases
We maintain a share repurchase program under which our Board has authorized us to repurchase our common shares from time to time. Our Board initially authorized this program in 1998 and has periodically replenished capacity under the program, including, most recently, on May 2, 2006 when our Board restored capacity to 3.5 million common shares. During the year ended December 31, 2006,2007, we repurchased approximately 1.21.8 million common shares under this program at an average price of $29.22$33.36 per share, leaving approximately 2.30.5 million shares in remaining capacity.capacity at December 31, 2007. Our Board has not limited the duration of the program.
On October 4, 2006 we repurchased 1,829,000 common shares with a portion of the proceeds of our 3.875% Exchangeable Guaranteed Notesprogram; however, it may be terminated at an average purchase price of $32.80 per share (approximately $60.0 million in aggregate). We repurchased these shares under a separate Board authorization that provided that the shares repurchased did not reduce capacity under the share repurchase program.any time.
Off-Balance Sheet Arrangements
We are not dependent on any off-balance sheet financing arrangements for liquidity. Our off-balance sheet arrangements are discussed in Note 4 to the financial statements, “Investment in Unconsolidated Real Estate Ventures”. Additional information about the debt of our unconsolidated Real Estate Ventures is included in “Item 2 Properties”.

-58-


Our interest rate incurred under our revolving credit facility is subject to modification depending on our rating status with qualified agencies.
Shelf Registration Statement
We maintain a shelf registration statement for the issuance of common shares, preferred shares, depositary shares and warrants and unsecured debt securities. Subject to our ongoing compliance with securities laws, and if warranted by market conditions, we may offer and sell equity and debt securities from time to time under the registration statement.
Short- and Long-Term Liquidity
We believe that our cash flow from operations is adequate to fund our short-term liquidity requirements. Cash flow from operations is generated primarily from rental revenues and operating expense reimbursements from tenants and management services income from providing services to third parties. We intendsintend to use these funds to meet short-term liquidity needs, which are to fund operating expenses, debt service requirements, recurring capital expenditures, tenant allowances, leasing commissions and the minimum distributions required to maintain the Company’sour REIT qualification under the Internal Revenue Code.
We expect to meet our long-term liquidity requirements, such as for property acquisitions, development, investments in real estate ventures, scheduled debt maturities, major renovations, expansions and other significant capital improvements, through cash from operations, borrowings under ourthe Credit Facility, other long-termadditional unsecured and secured and unsecured indebtedness, the issuance of equity securities, contributions from joint venture investors and the proceeds from the disposition of selected assets.asset dispositions.
Inflation
A majority of our leases provide for reimbursement of real estate taxes and operating expenses either on a triple net basis or over a base amount. In addition, many of our office leases provide for fixed base rent increases. We believe that inflationary increases in expenses will be partially offset by expense reimbursement and contractual rent increases.

-58-


Commitments and Contingencies
The following table outlines the timing of payment requirements related to our contractual commitments as of December 31, 2006.2007.
                                        
 Payments by Period (in thousands)  Payments by Period (in thousands) 
 Less than More than  Less than More than 
 Total 1 Year 1-3 Years 3-5 Years 5 Years  Total 1 Year 1-3 Years 3-5 Years 5 Years 
Mortgage notes payable (a) $869,626 $20,232 $190,733 $320,864 $337,797  $601,833 $22,278 $230,145 $183,313 $166,097 
Mortgage notes payable on asset classified as held for sale (a) 5,105 5,105    
Revolving credit facility (b) 60,000  60,000   
Unsecured debt (a), (b) 2,211,610  688,000 945,000 578,610 
Revolving credit facility 130,727 10,727  120,000  
Unsecured term loan 150,000  150,000   
Unsecured debt (a, 2,211,610 113,000 575,000 645,000 878,610 
Ground leases (c)(b) 280,185 1,736 3,472 3,637 271,340  302,096 1,736 4,304 4,636 291,420 
Interest expense 917,108 161,258 284,222 236,432 235,196 
Development contracts (c) 22,188 15,941 6,247     
Other liabilities 2,495  1,807  688  1,798  1,110  688 
                      
 $3,429,021 $27,073 $944,012 $1,269,501 $1,188,435  $4,337,360 $324,940 $1,251,028 $1,189,381 $1,572,011 
                      
 
(a) Amounts do not include unamortized discounts and/or premiums.
 
(b)Our revolving credit facility was used to repay the $300 million floating rate notes due 2009 on January 2, 2007. Accordingly, these amounts are shown as payable in 2009, which is the maturity of the credit facility.
(c)(b) Future minimum rental payments under the terms of all non-cancelable ground leases under which we are the lessee are expensed on a straight-line basis regardless of when payments are due. Certain of the land leases provide for prepayment of rent on a present value basis using a fixed discount rate. Further, certain of the land lease for properties (currently under development) provide for contingent rent participation by the lessor in certain capital transactions and net operating cash flows of the property after certain returns are achieved by us. Such amounts if any, will be reflected as contingent rent when incurred. The leases also provide for payment by us of certain operating cost relating to the land, primarily real estate taxes. The above schedule of future minimum rental payments does not included any contingent rent amounts nor any reimbursed expenses.
(c)Represents contractual obligations for certain development projects and does not contemplate all costs expected to be incurred for such developments.
As part of our September 2004 acquisition of a portfolio of properties from The Rubenstein Company (which we refer to as the TRC Properties in September 2004,acquisition), we agreed to issue to the sellers up to a maximum of $9.7 million of Class A Units of the Operating Partnership if certain of the acquired properties achieve at least 95% occupancy prior to September 21, 2007. The maximum number of Units that we are obligatedagreed to issue declinesdeclined monthly and as of December 31, 2006, the maximum balance payable under this arrangement was $1.8 million, with2007 we had no amount currently due.further obligation whatsoever.

-59-


As part of the TRC acquisition, we acquired our interest in Two Logan Square, a 696,477 square foot office building in Philadelphia, primarily through our ownership of a second and third mortgage secured by this property. This property is consolidated as the borrower is a variable interest entity and we, through our ownership of the second and third mortgages are the primary beneficiary. We currently do not expect to take title to Two Logan Square until, at the earliest, September 2019. In the event thatIf we take fee title to Two Logan Square upon a foreclosure of our mortgage, we have agreed to make a payment topay an unaffiliated third party withthat holds a residual interest in the fee owner of this property. Theproperty an amount of the payment would beequal to $0.6 million if(if we must pay a state and local transfer tax upon taking title,title) and $2.9 million if(if no transfer tax is payable upon the transfer.transfer).
As part of our 2006 acquisition of Prentiss Properties Trust, the TRC acquisition in 2004 and several of our other acquisitions,transactions, we agreed not to sell certain of the properties we acquired properties.in transactions that would trigger taxable income to the former owners. In the case of the TRC Properties,acquisition, we agreed not to sell the acquired properties for periods ranging from threeup to 15 years from the acquisition date as follows: 201 King of Prussia Road, 555 East Lancaster Avenue and 300 Delaware Avenue (three years)(January 2008); One Rodney Square and 130/150/170 Radnor Financial Center (10 years)(January 2015); and One Logan Square, Two Logan Square and Radnor Corporate Center (15 years)(January 2020). At December 31, 2006,In the Prentiss acquisition, we had agreedassumed the obligation of Prentiss not to sell Concord Airport Plaza before March 2018 and 6600 Rockledge before July 2008. We also agreed not sell 14 other properties that contain an aggregate 1.0of 1.2 million square feet for periods that expire throughby the end of 2008. Our agreements generally provide that we may dispose of the subject properties only in transactions that qualify as tax-free exchanges under Section 1031 of the Internal Revenue Code or in other tax deferred transactions. In the event thatIf we were to sell anya restricted property before expiration of the properties within the applicable restricted period in a non-exempt transactions,transaction, we would be required to paymake significant tax liabilities that would be incurred bypayments to the parties who sold us the applicable property.property on account of tax liabilities triggered to them.
We invest in our properties and regularly incur capital expenditures in the ordinary course to maintain the properties. We believe that such expenditures enhance our competitiveness. We also enter into construction, utility and service contracts in the ordinary course of business which may extend beyond one year. These contracts typically provide for cancellation with insignificant or no cancellation penalties.

-59-


Interest Rate Risk and Sensitivity Analysis
The analysis below presents the sensitivity of the market value of our financial instruments to selected changes in market rates. The range of changes chosen reflects our view of changes which are reasonably possible over a one-year period. Market values are the present value of projected future cash flows based on the market rates chosen.
Our financial instruments consist of both fixed and variable rate debt. As of December 31, 2006,2007, our consolidated debt consisted of $889.0$61.2 million (including $90.0 million of variable interest rate debt that is fixed through interest rate swaps) in fixed rate mortgages, and $0.6 million in variable rate mortgage notes, $60.0$120 million borrowings under our Credit Facility, $11 million of swing line borrowings, $150 million borrowings in an unsecured term loan and $2.3$2.1 billion in unsecured notes (net of discounts) of which $1.8$2.0 billion are fixed rate borrowings and $439.0$79 million are variable rate borrowings. All financial instruments were entered into for other than trading purposes and the net market value of these financial instruments is referred to as the net financial position. Changes in interest rates have different impacts on the fixed and variable rate portions of our debt portfolio. A change in interest rates on the fixed portion of the debt portfolio impacts the net financial instrument position, but has no impact on interest incurred or cash flows. A change in interest rates on the variable portion of the debt portfolio impacts the interest incurred and cash flows, but does not impact the net financial instrument position.
In November 2007, we entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap is for a notional amount of $25.0 million at a fixed rate of 3.747% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt.
In October 2007, we entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap is for a notional amount of $25.0 million at a fixed rate of 4.415% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt. The fair value of the hedge at December 31, 2007 was $(0.5) million and is included in other liabilities and accumulated other comprehensive income in the accompanying consolidated balance sheet.
In September 2007, we entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap has a starting notional amount of $63.7 million increasing to a maximum amount of $155.0 million, at a fixed rate of 4.709% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt. The fair value of the hedge at December 31, 2007 was $(2.7) million and is included in other liabilities and accumulated other comprehensive income in the accompanying consolidated balance sheet.
If market rates of interest on our variable rate debt increase by 1%, the increase in annual interest expense on our variable rate debt would decrease future earnings and cash flows by approximately $4.4 million.$2.5 million net of the hedged portion of variable rate debt. If market rates of interest on our variable rate debt decrease by 1%, the decrease in interest expense on our variable rate debt would increase future earnings and cash flows by approximately $4.4 million.$2.5 million net of the hedged portion of variable rate debt.
If market rates of interest increase by 1%, the fair value of our outstanding fixed-rate debt would decrease by approximately $102.8$86.9 million. If market rates of interest decrease by 1%, the fair value of our outstanding fixed-rate mortgage debt would increase by approximately $109.9$92.1 million.

-60-


As of December 31, 2006,2007, based on prevailing interest rates and credit spreads, the fair value of our unsecured notes and fixed rate mortgages was $1.83$2.6 billion.
Item 7A. Quantitative and Qualitative Disclosure About Market Risk
See discussion in Management’s Discussion and Analysis included in Item 7 herein.
Item 8. Financial Statements and Supplementary Data
The financial statements and supplementary financial data of Brandywine Realty Trust and Brandywine Operating Partnership, L.P. and the reports thereon of PricewaterhouseCoopers LLP with respect thereto are listed under Item 15(a) and filed as part of this Annual Report on Form 10-K. See Item 15.
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
None
Item 9A. Controls and Procedures
Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures
Under the supervision and with the participation of each registrant’s management, including its principal executive officer and principal financial officer, each registrant’s management conducted an evaluation of the registrant’s disclosure controls and procedures, as such term is defined under Rule 13a-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the Exchange Act). Based on this evaluation, the principal executive officer and the principal financial officer of each registrant concluded

-60-


that each registrant’s disclosure controls and procedures were effective as of the end of the period covered by this annual report. There were no changes in the internal control over financial reporting of each registrant that occurred during the three-month period ended December 31, 2006 that have materially affected, or are reasonably likely to materially affect, its internal control over financial reporting.
Management’s Report on Internal Control Over Financial Reporting
The management of each registrant is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f).
Under the supervision and with the participation of each registrant’s management, including its principal executive officer and principal financial officer, each registrant’s management conducted an evaluation of the effectiveness of the registrant’s internal control over financial reporting based on the framework inInternal Control — Integrated Frameworkissued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this evaluation under the framework inInternal Control — Integrated Framework, each registrant’s management concluded that the registrant’s internal control over financial reporting was effective as of December 31, 2006.2007.
Management of each registrant has excluded our investments in Four and Six Tower Bridge Associates from its evaluation of the effectiveness of internal control over financial reporting as of December 31, 20062007 because we do not have the right or authority to assess the internal controls of the individual entities and we also lack the ability, in practice, to make the assessment. Four and Six Tower Bridge Associates are two real estate partnerships, created prior to December 15, 2003, which we consolidate under Financial Accounting Standards Board Interpretation (FIN) 46R, “Consolidation of Variable Interest Entities.” We started consolidating Four and Six Tower Bridge Associates on March 31, 2004. The total assets and total revenue of Four and Six Tower Bridge Associates represent, in the aggregate, less than 1% of our consolidated total assets and consolidated total revenue as of and for the year ended December 31, 2006.2007.

-61-


The management assessment of the effectiveness of each registrant’s internal control over financial reporting as of December 31, 20062007 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their reports which are included herein.
Changes in Internal Control over Financial Reporting.
There have not been any changes in either registrant’s internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the fourth fiscal quarter to which this report relates that have materially affected, or are reasonably likely to materially affect, either registrant’s internal control over financial reporting.
Item 9B. Other Information
None
PART III
Item 10. Directors and Executive Officers of the Registrant
Incorporated herein by reference to the Company’s definitive proxy statement to be filed with respect to its 2008 Annual Meeting of Shareholders expected to be held on May 9, 2007.Shareholders.
Item 11. Executive Compensation

-61-


Incorporated herein by reference to the Company’s definitive proxy statement to be filed with respect to its 2008 Annual Meeting of Shareholders expected to be held on May 9, 2007.Shareholders.
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters
Incorporated herein by reference to the Company’s definitive proxy statement to be filed with respect to its 2008 Annual Meeting of Shareholders expected to be held on May 9, 2007.Shareholders.
Item 13. Certain Relationships and Related Transactions
Incorporated herein by reference to the Company’s definitive proxy statement to be filed with respect to its 2008 Annual Meeting of Shareholders expected to be held on May 9, 2007.Shareholders.
Item 14. Principal Accountant Fees and Services
Incorporated herein by reference to the Company’s definitive proxy statement to be filed with respect to its 2008 Annual Meeting of Shareholders expected to be held on May 9, 2007.Shareholders.
PART IV
Item 15. Exhibits and Financial Statement Schedules.
      (a) 1. and 2. Financial Statements and Schedules
The financial statements and schedules of Brandywine Realty Trust and Brandywine Operating Partnership listed below are filed as part of this annual report on the pages indicated.

-62-


Index to Financial Statements and Schedules
BRANDYWINE REALTY TRUST
     
  Page
BRANDYWINE REALTY TRUST
 
  F-1 
     
  F-3 
     
  F-4 
     
  F-5 
     
  F-6 
     
  F-7 
     
  F-8 
     
  F-40F-42 
     
  F-41F-43 
BRANDYWINE OPERATING PARTNERSHIP, L.P.
     
  Page 
  F-47F-48 
     
  F-49F-50 
     
  F-50F-51 
     
  F-51F-52 
     
  F-52F-53 
     
  F-53F-54 
     
  F-54F-55 
     
  F-86F-91 
     
  F-87F-92 

-63-


3.Exhibits
   
Exhibits No. Description
 
2 Agreement and Plan of Merger dated as of October 3, 2005 by and among Brandywine Realty Trust, Brandywine Operating Partnership, L.P., Brandywine Cognac I, LLC, Brandywine Cognac II, LLC, Prentiss Properties Trust and Prentiss Properties Acquisition Partners, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 4, 2005 and incorporated herein by reference)
   
3.1.1 Amended and Restated Declaration of Trust of Brandywine Realty Trust (amended and restated as of May 12, 1997) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated June 9, 1997 and incorporated herein by reference)
   
3.1.2 Articles of Amendment to Declaration of Trust of Brandywine Realty Trust (September 4, 1997) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated September 10, 1997 and incorporated herein by reference)
   
3.1.3 Articles of Amendment to Declaration of Trust of Brandywine Realty Trust (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated June 3, 1998 and incorporated herein by reference)
   
3.1.4 Articles Supplementary to Declaration of Trust of Brandywine Realty Trust (September 28, 1998) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 13, 1998 and incorporated herein by reference)
   
3.1.5 Articles of Amendment to Declaration of Trust of Brandywine Realty Trust (March 19, 1999) (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 1998 and incorporated herein by reference)
   
3.1.6 Articles Supplementary to Declaration of Trust of Brandywine Realty Trust (April 19, 1999) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated April 26, 1999 and incorporated herein by reference)
   
3.1.7 Articles Supplementary to Declaration of Trust of Brandywine Realty Trust (December 30, 2003) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-A dated December 29, 2003 and incorporated herein by reference)
   
3.1.8 Articles Supplementary to Declaration of Trust of Brandywine Realty Trust (February 5, 2004) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-A dated February 5, 2004 and incorporated herein by reference)
   
3.1.9 Articles of Amendment to Declaration of Trust of Brandywine Realty Trust (October 3, 2005) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 4, 2005 and incorporated herein by reference)
   
3.1.10 Second Amended and Restated Partnership Agreement of Brandywine Realty Services Partnership (previously filed as an exhibit to Brandywine Realty Trust’s Registration statement of Form S-11 (File No. 33-4175) and incorporated herein by reference)
   
3.1.11 Amended and Restated Articles of Incorporation of Brandywine Realty Services Corporation (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2002 and incorporated herein by reference)
   
3.1.12 Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (the “Operating Partnership”) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 17, 1997 and incorporated herein by reference)
   
3.1.13 First Amendment to Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 17, 1997 and incorporated herein by reference)
   
3.1.14 Second Amendment to the Amended and Restated Agreement of Limited Partnership Agreement of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated April 13, 1998 and incorporated herein by reference)
   
3.1.15 Third Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated May 14, 1998 and incorporated herein by reference)
   
3.1.16 Fourth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 13, 1998 and incorporated herein by reference)
   
3.1.17 Fifth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 13, 1998 and incorporated herein by reference)
   
3.1.18 Sixth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 13, 1998 and incorporated herein by reference)
   
3.1.19 Seventh Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2003 and incorporated herein by reference)
   
3.1.20 Eighth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2003 and incorporated herein by reference)

-64-


   
Exhibits No. Description
   
3.1.21 Ninth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2003 and incorporated herein by reference)
   
3.1.22 Tenth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2003 and incorporated herein by reference)
   
3.1.23 Eleventh Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2003 and incorporated herein by reference)
   
3.1.24 Twelfth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2003 and incorporated herein by reference)
   
3.1.25 Thirteenth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated September 21, 2004 and incorporated herein by reference)
   
3.1.26 Fourteenth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
3.1.27 Fifteenth Amendment to the Amended and Restated Agreement of Limited Partnership of Brandywine Operating Partnership, L.P. (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated August 18, 2006 and incorporated herein by reference)
   
3.1.28 List of partners of Brandywine Operating Partnership, L.P.
   
3.2 Amended and Restated Bylaws of Brandywine Realty Trust (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 14, 2003 and incorporated herein by reference)
   
4.1 Form of 7.50% Series C Cumulative Redeemable Preferred Share Certificate (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-A dated December 29, 2003 and incorporated herein by reference)
   
4.2 Form of 7.375% Series D Cumulative Redeemable Preferred Share Certificate (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-A dated February 5, 2004 and incorporated herein by reference)
   
4.3.1 Indenture dated October 22, 2004 by and among Brandywine Operating Partnership, L.P., Brandywine Realty Trust, certain subsidiaries of Brandywine Operating Partnership, L.P. named therein and The Bank of New York, as Trustee (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 22, 2004 and incorporated herein by reference)
   
4.3.2 First Supplemental Indenture dated as of May 25, 2005 by and among Brandywine Operating Partnership, L.P., Brandywine Realty Trust, certain subsidiaries of Brandywine Operating Partnership, L.P. named therein and The Bank of New York, as Trustee (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated May 26, 2005 and incorporated herein by reference)
   
4.3.3 Second Supplemental Indenture dated as of October 4, 2006 by and among Brandywine Operating Partnership, L.P., Brandywine Realty Trust and the Bank of New York, as Trustee (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 4, 2006 and incorporated herein by reference)
   
4.4 Form of $275,000,000 4.50% Guaranteed Note due 2009 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 22, 2004 and incorporated herein by reference)
   
4.5 Form of $250,000,000 5.40% Guaranteed Note due 2014 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 22, 2004 and incorporated herein by reference)
   
4.6 Form of $300,000,000 5.625% Guaranteed Note due 2010 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 20, 2005 and incorporated herein by reference)
   
4.7 Form of $300,000,000 aggregate principal amount of Floating Rate Guaranteed Note due 2009 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated March 28, 2006 and incorporated herein by reference).
   
4.8 Form of $300,000,000 aggregate principal amount of 5.75% Guaranteed Note due 2012 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated March 28, 2006 and incorporated herein by reference).
   
4.9 Form of $250,000,000 aggregate principal amount of 6.00% Guaranteed Note due 2016 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated March 28, 2006 and incorporated herein by reference).
   
4.10 Form of 3.875% Exchangeable Guaranteed Notes due 2026 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 4, 2006 and incorporated herein by reference)
   
10.14.11 Amended and Restated Revolving Credit Agreement dated asForm of December 22, 2005$300,000,000 aggregate principal amount of 5.70% Guaranteed Notes due 2017 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 23, 2005April 30, 2007 and incorporated herein by reference)
   
10.1Second Amended and Restated Revolving Credit Agreement dated as of June 29, 2007 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated June 29, 2007 and incorporated herein by reference)
10.2Term Loan Agreement dated as of October 15, 2007 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 16, 2007 and incorporated herein by reference)
10.3 Term Loan Agreement dated as of January 5, 2006 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.310.4 Note Purchase Agreement dated as of November 15, 2004 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated November 15, 2004 and incorporated herein by reference)

-65-


   
10.4Exhibits No.Description
10.5 Tax Indemnification Agreement dated May 8, 1998, by and between Brandywine Operating Partnership, L.P. and the parties identified on the signature page (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated May 14, 1998 and incorporated herein by reference)
   
10.510.6 Contribution Agreement dated as of July 10, 1998 (with Donald E. Axinn) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated July 30, 1998 and incorporated herein by reference)

-65-


   
Exhibits No.Description
10.610.7 First Amendment to Contribution Agreement (with Donald E. Axinn) (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 13, 1998 and incorporated herein by reference)
   
10.710.8 Form of Donald E. Axinn Options** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated July 30, 1998 and incorporated herein by reference)
   
10.810.9 Modification Agreement dated as of June 20, 2005 between Brandywine Operating Partnership, L.P. and Donald E. Axinn (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated June 21, 2005 and incorporated herein by reference)
10.9Consent and Confirmation Agreement with Donald E. Axinn (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 15, 2006 and incorporated herein by reference)
   
10.10 Contribution Agreement dated August 18, 2004 with TRC Realty, Inc.-GP, TRC-LB LLC and TRC Associates Limited Partnership (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated August 19, 2004 and incorporated herein by reference)
   
10.11 Registration Rights Agreement (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated September 21, 2004 and incorporated herein by reference)
   
10.12 Tax Protection Agreement (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated September 21, 2004 and incorporated herein by reference)
   
10.13 Alternative Asset Purchase Agreement (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
10.14Registration Rights Agreement dated as of October 3, 2005 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 4, 2005 and incorporated herein by reference)
   
10.1510.14 Letter to Cohen & Steers Capital Management, Inc. (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended June 30, 2003 and incorporated herein by reference)
   
10.1610.15 Sales Agreement with Brinson Patrick Securities Corporation (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated November 29, 2004 and incorporated herein by reference)
   
10.1710.16 Registration Rights Agreement dated as of October 4, 2006 relating to 3.875% Exchangeable Guaranteed Notes due 2026 (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 4, 2006 and incorporated herein by reference)
   
10.1810.17 Common Share Delivery Agreement (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated October 4, 2006 and incorporated herein by reference)
   
10.1910.18 2006 Amended and Restated Agreement dated as of January 5, 2006 with Anthony A. Nichols, Sr.** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.2010.19 Amended and Restated Employment Agreement dated as of February 9, 2007 of Gerard H. Sweeney** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 14, 2007 and incorporated herein by reference)
   
10.21Employment Agreement with Robert K. Wiberg (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated as of November 2, 2005 and incorporated herein by reference)
10.22Employment Agreement with Daniel K. Cushing (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated as of November 2, 2005 and incorporated herein by reference)
10.23Employment Agreement with Christopher M. Hipps (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated as of November 2, 2005 and incorporated herein by reference)
10.24Employment Agreement with Michael J. Cooper (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated as of November 2, 2005 and incorporated herein by reference)
10.25Employment Agreement with Gregory S. Imhoff** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
10.2610.20 Employment Agreement with Howard M. Sipzner** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 12, 2006 and incorporated herein by reference)
   
10.2710.21 Employment Agreement with Darryl M. Dunn** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2007 and incorporated herein by reference)
   
10.2810.22 Consulting Agreement with Michael V. Prentiss** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.2910.23 Consulting Agreement with Thomas F. August** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.3010.24 Third Amended and Restated Employment Agreement with Michael V. Prentiss**(previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.3110.25 First Amendment to the Third Amended and Restated Employment Agreement with Michael V. Prentiss** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.3210.26 Second Amendment to the Third Amended and Restated Employment Agreement with Michael V. Prentiss** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.3310.27 Amended and Restated Employment Agreement with Thomas F. August** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.3410.28 First Amendment to the Amended and Restated Employment Agreement with Thomas F. August** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
10.29Second Amendment to the Amended and Restated Employment Agreement with Thomas F. August** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
10.30Employment Letter Agreement with Robert K. Wiberg dated January 15, 2008**(previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 22, 2008 and incorporated herein by reference)
10.31Change in Control and Severance Protection Agreement with Robert K. Wiberg**(previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 22, 2008 and incorporated herein by reference)
10.32Form of Acknowledgment and Waiver Agreement** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)

-66-


   
Exhibits No. Description
   
10.3510.33 Second Amendment to the Amended and Restated Employment Agreement with Thomas F. August** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
10.36Form of Acknowledgment and Waiver Agreement** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
10.371997 Long-Term Incentive PlanPlan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended March 31, 20052007 and incorporated herein by reference)
   
10.3810.34 Amended and Restated Executive Deferred Compensation Plan effective March 25, 2004** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended March 31, 2004 and incorporated herein by reference)
   
10.3910.35 Amended and Restated Executive Deferred Compensation Plan effective January 1, 2006** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 26, 2006 and incorporated herein by reference)
   
10.4010.36 Amended and Restated2007 Non-Qualified Stock Option Award to Gerard H. Sweeney** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 1998 and incorporated herein by reference)
10.412002 RestrictedEmployee Share Award for Gerard H. Sweeney*Purchase Plan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended June 30, 2002March 31, 2007 and incorporated herein by reference)
   
10.422002 Form of Restricted Share Award for Executive Officers (other than the President and Chief Executive Officer)** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended June 30, 2002 and incorporated herein by reference)
10.432002 Restricted Share Award to Christopher P. Marr** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated August 27, 2002 and incorporated herein by reference)
10.442002 Non-Qualified Option to Gerard H. Sweeney** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended September 30, 2002 and incorporated herein by reference)
10.452003 Restricted Share Award to Gerard H. Sweeney** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2002 and incorporated herein by reference)
10.462003 Restricted Share Award to Anthony S. Rimikis** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2002 and incorporated herein by reference)
10.472003 Restricted Share Award to H. Jeffrey De Vuono** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2002 and incorporated herein by reference)
10.482003 Restricted Share Award to George D. Sowa** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2002 and incorporated herein by reference)
10.492003 Restricted Share Award to Brad A. Molotsky** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2002 and incorporated herein by reference)
10.502003 Restricted Share Award to Christopher P. Marr** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-K for the fiscal year ended December 31, 2002 and incorporated herein by reference)
10.5110.37 2004 Restricted Share Award to Gerard H. Sweeney** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended March 31, 2004 and incorporated herein by reference)
   
10.5210.38 Form of 2004 Restricted Share Award to executive officers (other than the President and Chief Executive Officer)** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended March 31, 2004 and incorporated herein by reference)
   
10.53Form of 2004 Restricted Share Award to non-executive trustees** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended June 30, 2004 and incorporated herein by reference)
10.5410.39 Form of 2004 Restricted Share Award to non-executive trustee (Wyche Fowler)** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 22, 2004 and incorporated herein by reference)
   
10.5510.40 2005 Restricted Share Award to Gerard H. Sweeney** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 15, 2005 and incorporated herein by reference)
   
10.5610.41 Form of 2005 Restricted Share Award to executive officers (other than the President and Chief Executive Officer)** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 15, 2005 and incorporated herein by reference)
   
10.5710.42 Form of 2005 Restricted Share Award to non-executive trustees** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated May 26, 2005 and incorporated herein by reference)
   
10.5810.43 2006 Restricted Share Award to Gerard H. Sweeney** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 15, 2006 and incorporated herein by reference)
   
10.5910.44 Form of 2006 Restricted Share Award to executive officers (other than the President and Chief Executive Officer)** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 15, 2006 and incorporated herein by reference)
   
10.6010.45 Form of 2006 Restricted Share Award to non-executive trustees** (previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended March 31, 2006 and incorporated herein by reference)
   
10.6110.46Form of 2007 Restricted Share Award to non-executive trustee**(previously filed as an exhibit to Brandywine Realty Trust’s Form 10-Q for the quarter ended March 31, 2007 and incorporated herein by reference)
10.47 Performance Share Award to Howard M. Sipzner ** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 12, 2006 and incorporated herein by reference)
   
10.6210.48 2007 Performance Share Award to Gerard H. Sweeney** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 14, 2007 and incorporated herein by reference)

-67-


   
Exhibits No.Description
10.6310.49 Form of 2007 Performance Share Award to executive officers (other than the President and Chief Executive Officer)** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 14, 2007 and incorporated herein by reference)
   
10.6410.50 Form of Severance Agreement for executive officers** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated February 15, 2005 and incorporated herein by reference)
   
10.6510.51 Change of Control Agreement with Howard M. Sipzner** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 12, 2006 and incorporated herein by reference)
   
10.6610.52 Summary of Trustee Compensation** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated March 17, 2006 and incorporated herein by reference)
   
10.6710.53 Prentiss Properties Trust 1996 Share Incentive Plan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.6810.54 First Amendment to the Prentiss Properties Trust 1996 Share Incentive Plan**(previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.6910.55 Second Amendment to the Prentiss Properties Trust 1996 Share Incentive Plan**(previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7010.56 Amendment No. 3 to the Prentiss Properties Trust 1996 Share Incentive Plan**(previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7110.57 Fourth Amendment to the Prentiss Properties Trust 1996 Share Incentive Plan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7210.58 Amendment No. 5 to the Prentiss Properties Trust 1996 Share Incentive Plan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7310.59 Sixth Amendment to the Prentiss Properties Trust 1996 Share Incentive Plan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7410.60 Prentiss Properties Trust 2005 Share Incentive Plan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7510.61 Amended and Restated Prentiss Properties Trust Trustees’ Share Incentive Plan**(previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)

-67-


   
10.76Exhibits No.Description
10.62 Amendment No. 1 to the Amended and Restated Prentiss Properties Trust Trustees’ Share Incentive Plan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7710.63 Second Amendment to the Amended and Restated Prentiss Properties Trust Trustees’ Share Incentive Plan** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7810.64 Form of Restricted Share Award** (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated January 10, 2006 and incorporated herein by reference)
   
10.7910.65 2006 Long-Term Outperformance Compensation Program (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated September 1, 2006 and incorporated herein by reference)
   
12.1 Statement re Computation of Ratios of Brandywine Realty Trust
   
12.2 Statement re Computation of Ratios of Brandywine Operating Partnership, L.P.
   
14.1 Code of Business Conduct and Ethics (previously filed as an exhibit to Brandywine Realty Trust’s Form 8-K dated December 22, 2004 and incorporated herein by reference)
   
21 List of subsidiaries
   
23.1 Consent of PricewaterhouseCoopers LLP relating to financial statements of Brandywine Realty Trust
   
23.2 Consent of PricewaterhouseCoopers LLP relating to financial statements of Brandywine Operating Partnership, L.P.
   
31.1 Certifications of the Chief Executive Officer of Brandywine Realty Trust required by Rule 13a-14(a) under the Securities Exchange Act of 1934.
   
31.2 Certifications of the Chief Financial Officer of Brandywine Realty Trust required by Rule 13a-14(a) under the Securities Exchange Act of 1934.
   
31.3 Certifications of the Chief Executive Officer of Brandywine Realty Trust in its capacity as the general partner of Brandywine Operating Partnership, L.P., required by Rule 13a-14(a) under the Securities Exchange Act of 1934.
   
31.4 Certifications of the Chief Financial Officer of Brandywine Realty Trust, in its capacity as the general partner of Brandywine Operating Partnership, L.P., required by Rule 13a-14(a) under the Securities Exchange Act of 1934.
   
32.1 Certifications of the Chief Executive Officer of Brandywine Realty Trust required under Rule 13a-14(b) of the Securities Exchange Act of 1934.
   
32.2 Certifications of the Chief Financial Officer of Brandywine Realty Trust required by Rule 13a-14(b) under the Securities Exchange Act of 1934.
   
32.3 Certifications of the Chief Executive Officer of Brandywine Realty Trust, in its capacity as the general partner of Brandywine Operating Partnership, L.P., required by Rule 13a-14(b) under the Securities Exchange Act of 1934.
   
32.4 Certifications of the Chief Financial Officer of Brandywine Realty Trust, in its capacity as the general partner of Brandywine Operating Partnership, L.P., required by Rule 13a-14(b) under the Securities Exchange Act of 1934.
 
** Management contract or compensatory plan or arrangement.
(c)(1)The Financial Statements of G & I Interchange Office, LLC will be filed on Form 10-K/A by March 31, 2008.

-68-


SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
     
 BRANDYWINE REALTY TRUST
 
 
 
By:  /s/ Gerard H. Sweeney
  
  Gerard H. Sweeney
President and Chief Executive Officer  
Date: February 28, 20072008
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
     
Signature Title Date
/s/ Walter D’Alessio
 
Walter D’Alessio
 Chairman of the Board and Trustee February 28, 20072008
Walter D’Alessio
     
/s/ Gerard H. Sweeney
 
Gerard H. Sweeney
 President, Chief Executive Officer and Trustee (Principal Executive Officer) February 28, 20072008
    
/s/ Howard M. Sipzner
 
Howard M. Sipzner
 Executive Vice President and Chief Financial Officer (Principal Financial Officer) February 28, 20072008
     
/s/ Darryl M. Dunn
 
Darryl M. Dunn
 Vice President, Chief Accounting Officer & Treasurer
(Principal (Principal Accounting Officer)
 February 28, 20072008
     
/s/ D. Pike Aloian
D. Pike Aloian
 Trustee February 28, 20072008
D. Pike Aloian
     
/s/ Thomas F. August
Thomas F. August
Donald E. Axinn
 Trustee February 28, 20072008
Donald E. Axinn
     
/s/ Donald E. Axinn
Donald E. Axinn
Wyche Fowler
 Trustee February 28, 20072008
Wyche Fowler
     
/s/ Wyche Fowler
Wyche Fowler
Michael J. Joyce
 Trustee February 28, 20072008
Michael J. Joyce
     
/s/ Michael J. Joyce
Michael J. Joyce
Anthony A. Nichols, Sr.
 Trustee February 28, 20072008
Anthony A. Nichols, Sr.
     
/s/ Anthony A. Nichols, Sr.
Anthony A. Nichols, Sr.
Charles P. Pizzi
 Trustee February 28, 20072008
Charles P. Pizzi    
/s/ Charles P. Pizzi
Charles P. Pizzi
TrusteeFebruary 28, 2007
/s/ Michael V. Prentiss
Michael V. Prentiss
TrusteeFebruary 28, 2007

-69-


SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
     
 
BRANDYWINE OPERATING PARTNERSHIP, L.P.

 
 
 By:  Brandywine Realty Trust, its General Partner   
    
  By: Brandywine Realty Trust, its General Partner 
 
By:  /s/ Gerard H. Sweeney
  
  Gerard H. Sweeney
President and Chief Executive Officer  
Date: February 28, 20072008
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
     
Signature Title Date
/s/ Walter D’Alessio
 
Walter D’Alessio
 Chairman of the Board and Trustee February 28, 20072008
     
/s/ Gerard H. Sweeney
 
Gerard H. Sweeney
 President, Chief Executive Officer and Trustee (Principal Executive Officer) February 28, 20072008
     
/s/ Howard M. Sipzner
 
Howard M. Sipzner
 Executive Vice President and Chief Financial Officer (Principal Financial Officer) February 28, 20072008
     
/s/ Darryl M. Dunn
 
Darryl M. Dunn
 Vice President, Chief Accounting Officer & Treasurer
(Principal (Principal Accounting Officer)
 February 28, 20072008
     
/s/ D. Pike Aloian
D. Pike Aloian
 Trustee February 28, 20072008
D. Pike Aloian
     
/s/ Thomas F. August
Thomas F. August
Donald E. Axinn
 Trustee February 28, 20072008
Donald E. Axinn
     
/s/ Donald E. Axinn
Donald E. Axinn
Wyche Fowler
 Trustee February 28, 20072008
Wyche Fowler
     
/s/ Wyche Fowler
Wyche Fowler
Michael J. Joyce
 Trustee February 28, 20072008
Michael J. Joyce
     
/s/ Michael J. Joyce
Michael J. Joyce
Anthony A. Nichols, Sr.
 Trustee February 28, 20072008
��Anthony A. Nichols, Sr.   
/s/ Anthony A. Nichols, Sr.
Anthony A. Nichols, Sr.
 TrusteeFebruary 28, 2007
     
/s/ Charles P. Pizzi
Charles P. Pizzi
 Trustee February 28, 20072008
Charles P. Pizzi    
/s/ Michael V. Prentiss
Michael V. Prentiss
TrusteeFebruary 28, 2007

-70-


Report of Independent Registered Public Accounting Firm
To the Board of Trustees and Shareholders of Brandywine Realty Trust:
We have completed integrated audits of Brandywine Realty Trust’s and its subsidiaries (collectively the “Company”) consolidated financial statements and of its internal control over financial reporting as of December 31, 2006, in accordance with the standards of the Public Company Accounting Oversight Board (United States). Our opinions, based on our audits, are presented below.
Consolidated financial statements and financial statement schedules
In our opinion, the consolidated financial statements listed in the index appearing under Item 15(a)(2)(1) present fairly, in all material respects, the financial position of Brandywine Realty Trust and its subsidiaries (collectively the “Company”(the "Company") at December 31, 20062007 and 2005,2006, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 20062007 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedules listed in the index appearing under Item 15(a)(2) present fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. TheseAlso in our opinion, the Company maintained, in all material respects, effective internal control over financial statements and financial statement schedules arereporting as of December 31, 2007, based on criteria established in Internal Control - Integrated Framework issued by the responsibilityCommittee of Sponsoring Organizations of the Company’s management. Our responsibilityTreadway Commission (COSO). The Company's management is to express an opinion onresponsible for these financial statements and financial statement schedules, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in Management's Report on Internal Control over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on these financial statements, on the financial statement schedules, and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the auditaudits to obtain reasonable assurance about whether the financial statements are free of material misstatement. An auditmisstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements includesincluded examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
Internal control over financial reporting
Also, in our opinion, management’s assessment, included in the accompanying Form 10-K appearing under Item 9A, that the Company maintained effective internal control over financial reporting as of December 31, 2006 based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), is fairly stated, in all material respects, based on those criteria. Furthermore, in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2006, based on criteria established in Internal Control — Integrated Framework issued by the COSO. The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting. Our responsibility is to express opinions on management’s assessment and on the effectiveness of the Company’s internal control over financial reporting based on our audit. We conducted our audit of internal control over financial reporting in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. An audit of internal control over financial reporting includesincluded obtaining an understanding of internal control over financial reporting, evaluating management’s assessment,assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control andbased on the assessed risk. Our audits also included performing such other procedures as we considerconsidered necessary in the circumstances. We believe that our audit providesaudits provide a reasonable basis for our opinions.
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of

F - 1


financial statements for external purposes in accordance with generally accepted accounting principles. A company’scompany's internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the

F - 1


company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’scompany's assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
As described in Management’s Report on Internal Control Over Financial Reporting, management has excluded the Company’s investments in Four and Six Tower Bridge Associates from its assessment of internal control over financial reporting as of December 31, 20062007 because the Company does not have the right and authority to assess the internal control over financial reporting of the individual entities and it lacks the ability to influence or modify the internal control over financial reporting of the individual entities. Four and Six Tower Bridge Associates are two real estate partnerships, created prior to December 13, 2003, which the Company started consolidating under Financial Accounting Standards Board Interpretation No. 46R, “Consolidation of Variable Interest Entities” on March 31, 2004. We have also excluded Four and Six Tower Bridge Associates from our audit of internal control over financial reporting. The total assets and total revenue of Four and Six Tower Bridge are two consolidated real estate partnerships whose total assets and total revenuesAssociates represent, in the aggregate less than 1% and 1%, respectively, of the relatedCompany’s consolidated financial statement amounts as of and for the year ended December 31, 2006.2007.
/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 28, 200727, 2008

F - 2


BRANDYWINE REALTY TRUST
CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share information)
                
 December 31,  December 31, 
 2006 2005  2007 2006 
ASSETS
  
Real estate investments:  
Operating properties $4,927,305 $2,560,061  $4,813,563 $4,927,305 
Accumulated depreciation  (515,698)  (390,333)  (558,908)  (515,698)
          
Operating real estate investments, net 4,411,607 2,169,728  4,254,655 4,411,607 
Construction-in-progress 217,886 273,240 
Land held for development 110,233 98,518 
Development land and construction-in-progress 402,270 328,119 
          
Total real estate investments, net 4,739,726 2,541,486 
 
Total real estate invesmtents, net 4,656,925 4,739,726 
Cash and cash equivalents 25,379 7,174  5,600 25,379 
Restricted cash 22,557 18,498 
Accounts receivable, net 19,957 12,874  17,057 19,957 
Accrued rent receivable, net 71,589 47,034  83,098 71,589 
Asset held for sale 126,016    126,016 
Investment in real estate ventures, at equity 74,574 13,331  71,598 74,574 
Deferred costs, net 73,708 37,602  87,123 73,708 
Intangible assets, net 281,251 78,097  218,149 281,251 
Other assets 73,506 49,649  74,549 96,818 
          
 
Total assets $5,508,263 $2,805,745  $5,214,099 $5,509,018 
     
      
LIABILITIES AND BENEFICIARIES’ EQUITY
  
Mortgage notes payable $883,920 $494,777  $611,898 $883,920 
Unsecured term loan 150,000  
Unsecured notes 2,208,310 936,607  2,208,344 2,208,310 
Unsecured credit facility 60,000 90,000  130,727 60,000 
Accounts payable and accrued expenses 108,400 52,635  80,732 108,400 
Distributions payable 42,760 28,880  42,368 42,760 
Tenant security deposits and deferred rents 55,697 20,953  65,241 55,697 
Acquired below market leases, net of accumulated amortization of $26,009 and $6,931 92,527 34,704 
Acquired below market leases, net of accumulated amortization of $36,544 and $26,009 67,281 92,527 
Other liabilities 13,906 4,466  30,154 14,661 
Mortgage notes payable and other liabilities held for sale 20,826    20,826 
          
Total liabilities 3,486,346 1,663,022  3,386,745 3,487,101 
Minority interest — partners’ share of consolidated real estate ventures 34,428    34,428 
Minority interest attributable to continuing operations — LP units 89,563 37,859 
 
Commitments and contingencies (Note 22) 
 
Minority interest — LP units 84,119 89,563 
Commitments and contingencies (Note 19) 
Beneficiaries’ equity:  
Preferred Shares (shares authorized-20,000,000):  
7.50% Series C Preferred Shares, $0.01 par value; issued and outstanding–2,000,000 in 2006 and 2005 20 20 
7.375% Series D Preferred Shares, $0.01 par value; issued and outstanding–2,300,000 in 2006 and 2005 23 23 
Common Shares of beneficial interest, $0.01 par value; shares authorized 200,000,000; issued and outstanding–88,327,041 in 2006 and 56,179,075 in 2005 883 562 
7.50% Series C Preferred Shares, $0.01 par value; issued and outstanding- 2,000,000 in 2007 and 2006 20 20 
7.375% Series D Preferred Shares, $0.01 par value; issued and outstanding- 2,300,000 in 2007 and 2006 23 23 
Common Shares of beneficial interest, $0.01 par value; shares authorized 200,000,000; 88,623,635 and 88,327,041 issued in 2007 and 2006, respectively and 87,015,600 and 88,327,041 outstanding in 2007 and 2006, respectively 870 883 
Additional paid-in capital 2,311,541 1,369,913  2,319,410 2,311,541 
Common shares in treasury, at cost, 1,599,637 shares at December 31, 2007  (53,449)  
Cumulative earnings 423,764 413,282  480,217 423,764 
Accumulated other comprehensive income (loss) 1,576  (3,169)  (1,885) 1,576 
Cumulative distributions  (839,881)  (675,767)  (1,001,971)  (839,881)
          
Total beneficiaries’ equity 1,897,926 1,104,864  1,743,235 1,897,926 
          
Total liabilities, minority interest and beneficiaries’ equity $5,508,263 $2,805,745  $5,214,099 $5,509,018 
          
The accompanying notes are an integral part of these consolidated financial statements.

F - 3


BRANDYWINE REALTY TRUST
CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except share and per share information)
                        
 Years ended December 31,  Years ended December 31, 
 2006 2005 2004  2007 2006 2005 
Revenue:
  
Rents $559,936 $318,218 $267,710  $562,514 $519,282 $302,530 
Tenant reimbursements 80,470 48,562 36,849  85,404 78,817 48,069 
Termination fees 10,236 7,231 6,083 
Third party management fees, labor reimbursement and leasing 19,691 19,453 3,582 
Other 22,395 13,844 11,998  6,127 5,502 4,171 
              
Total revenue 662,801 380,624 316,557  683,972 630,285 364,435 
  
Operating Expenses:
  
Property operating expenses 188,001 111,192 86,358  189,130 171,924 103,968 
Real estate taxes 65,584 38,180 29,895  64,895 60,808 36,356 
Management expenses 10,361 10,675 1,394 
Depreciation and amortization 248,132 109,118 77,521  242,312 230,710 106,175 
Administrative expenses 29,644 17,982 15,100  28,182 29,644 17,982 
              
Total operating expenses 531,361 276,472 208,874  534,880 503,761 265,875 
              
Operating income
 131,440 104,152 107,683  149,092 126,524 98,560 
Other Income (Expense):
  
Interest income 9,513 1,370 841  4,040 9,513 1,370 
Interest expense  (171,177)  (70,152)  (52,642)  (162,675)  (171,177)  (70,380)
Interest expense — Deferred financing costs  (4,607)  (3,766)  (1,968)
Interest expense - Deferred financing costs  (4,496)  (4,607)  (3,540)
Loss on settlement of treasury lock agreements  (3,698)   
Equity in income of real estate ventures 2,165 3,172 2,023  6,955 2,165 3,171 
Net gain on sale of interests in real estate 14,190 4,640 2,975 
Net gain on sale of interests in depreciated real estate 40,498   
Net gain on sale of interests in undepreciated real estate 421 14,190 4,640 
Gain on termination of purchase contract 3,147     3,147  
              
Income (loss) before minority interest
  (15,329) 39,416 58,912  30,137  (20,245) 33,821 
Minority interest — partners’ share of consolidated real estate ventures 270   
Minority interest attributable to continuing operations — LP units 1,028  (1,237)  (2,429)
Minority interest - partners’ share of consolidated real estate ventures  (465) 270  
Minority interest attributable to continuing operations - LP units  (911) 1,246  (1,043)
              
Income (loss) from continuing operations
  (14,031) 38,179 56,483  28,761  (18,729) 32,778 
 
Discontinued operations:
  
Income from discontinued operations 7,681 2,555 827  3,184 12,597 8,150 
Net gain on disposition of discontinued operations 20,243 2,196 3,137  25,743 20,243 2,196 
Minority interest — partners’ share of consolidated real estate ventures  (2,239)   
Minority interest attributable to discontinued operations — LP units  (1,172)  (163)  (144)
Minority interest - partners’ share of consolidated real estate ventures   (2,239)  
Minority interest attributable to discontinued operations - LP units  (1,235)  (1,390)  (357)
              
Income from discontinued operations 24,513 4,588 3,820  27,692 29,211 9,989 
              
Net income
 10,482 42,767 60,303  56,453 10,482 42,767 
Income allocated to Preferred Shares  (7,992)  (7,992)  (9,720)  (7,992)  (7,992)  (7,992)
Preferred Share redemption gain   4,500 
              
Income allocated to Common Shares
 $2,490 $34,775 $55,083  $48,461 $2,490 $34,775 
              
  
Basic earnings per Common Share:
  
Continuing operations $(0.25) $0.54 $1.07  $0.24 $(0.30) $0.44 
Discontinued operations 0.27 0.08 0.08  0.32 0.33 0.18 
              
 $0.03 $0.62 $1.15  $0.56 $0.03 $0.62 
              
 
Diluted earnings per Common Share:
  
Continuing operations $(0.24) $0.54 $1.07  $0.24 $(0.30) $0.44 
Discontinued operations 0.27 0.08 0.08  0.32 0.32 0.18 
       
 $0.03 $0.62 $1.15        
        $0.55 $0.03 $0.62 
        
Dividends declared per common share
 $1.76 $1.78 $1.76  $1.76 $1.76 $1.78 
  
Basic weighted average shares outstanding
 89,552,301 55,846,268 47,781,789  87,272,148 89,552,301 55,846,268 
  
Diluted weighted average shares outstanding
 90,070,825 56,104,588 48,018,704  87,321,276 90,070,825 56,104,588 
The accompanying notes are an integral part of these consolidated financial statements.

F - 4


BRANDYWINE REALTY TRUST
CONSOLIDATED STATEMENTS OF OTHER COMPREHENSIVE (LOSS) INCOME
(in thousands)
                        
 Years ended December 31,  Years ended December 31, 
 2006 2005 2004  2007 2006 2005 
Net income $10,482 $42,767 $60,303  $56,453 $10,482 $42,767 
 
Other comprehensive income:  
Unrealized gain (loss) on derivative financial instruments 1,330  (713) 309   (3,600) 1,330  (713)
Less: minority interest — consolidated real estate venture partner’s share of unrealized gain (loss) on derivative financial instruments  (302)   
Less: minority interest - consolidated real estate venture partner’s share of unrealized gain (loss) on derivative financial instruments   (302)  
Settlement of treasury locks    (3,238)  (3,860)   
Settlement of forward starting swaps 3,266 240   1,148 3,266 240 
Realized gain on derivative financial instruments   450 2,809 
Reclassification of realized (gains)/losses on derivative financial instruments to operations, net 122    3,436 122 450 
Unrealized gain (loss) on available-for-sale securities 328  (16)  (852)  (585) 328  (16)
              
Total other comprehensive income (loss) 4,744  (39)  (972)  (3,461) 4,744  (39)
              
Comprehensive income $15,226 $42,728 $59,331  $52,992 $15,226 $42,728 
              
The accompanying notes are an integral part of these consolidated financial statements.

F - 5


BRANDYWINE REALTY TRUST
CONSOLIDATED STATEMENTS OF BENEFICIARIES’ EQUITY
For the years ended December 31, 2007, 2006 2005 and 2004  
2005
(in thousands, except number of shares)
                  
 Accumulated      Accumulated    
 Number of Par Value of Number of Par Value of Number of Par Value of Par Value of Other      Number of Par Value of Number of Par Value of Par Value of Other     
 Preferred A Preferred A Preferred C Preferred C Preferred D Preferred D Number of Common Additional Paid-in Employee Share Cumulative Comprehensive Cumulative   
 Shares Shares Shares Shares Shares Shares Common Shares Shares Capital Stock Loans Warrants Earnings Income (Loss) Distributions Total 
BALANCE, December 31, 2003 750,000 $8 2,000,000 $20  $ 41,040,710 $411 $938,262 $(1,533) $401 $310,212 $(2,158) $(473,766) $771,857 
Net income 60,303 60,303 
Other comprehensive income  (972)  (972)
Vesting of Restricted Stock 88,406 1 1,642 1,643 
Issuance of Preferred Shares 2,300,000 23 55,515 55,538 
Conversion of Preferred Series A Shares  (750,000)  (8) 1,339,286 13  (6)  (1)
Redemption of Preferred Shares 4,500 4,500 
Issuance of Common Shares 12,235,000 122 336,562 336,684 
Issuance of trustee/bonus shares 2,191  55 55 
Payment of employee stock loans 1,112 1,112 
Exercise of warrants/options 587,159 6 14,940  (401) 14,545 
Amortization of stock options 102 102 
Preferred Share distributions  (9,720)  (9,720)
Distributions ($1.76 per share)  (88,644)  (88,644)
                                Preferred C Preferred C Preferred D Preferred D Number of Common AdditionalPaid-in Common Shares in Employee Cumulative Comprehensive Cumulative   
  Shares Shares Shares Shares Common Shares Shares Capital Treasury Stock Loans Earnings Income (Loss) Distributions Total 
BALANCE, December 31, 2004  $ 2,000,000 $20 2,300,000 $23 55,292,752 $553 $1,347,072 $(421) $ $370,515 $(3,130) $(567,630) $1,147,002   2,000,000  $20   2,300,000  $23   55,292,752  $553  $1,347,072  $  $(421) $370,515  $(3,130) $(567,630) $1,147,002 
                                                     
Net income 42,767 42,767                                       42,767           42,767 
Other comprehensive income  (39)  (39)                                          (39)      (39)
Vesting of Restricted Stock 69,746 1 1,539 1,540                   69,746   1   1,539                       1,540 
Conversion of LP units to common shares 107,692 1 2,584 2,585                   107,692   1   2,584                       2,585 
Issuance of trustee/bonus shares 3,204  90 90                   3,204      90                       90 
Payment of employee stock loans 50 50                                   50               50 
Exercise of warrants/options 705,681 7 18,999 19,006                   705,681   7   18,999                       19,006 
Preferred Share distributions  (7,992)  (7,992)                                              (7,992)  (7,992)
Distributions ($1.78 per share)  (100,145)  (100,145)                                              (100,145)  (100,145)
                                                                       
                                                     
BALANCE, December 31, 2005  $ 2,000,000 $20 2,300,000 $23 56,179,075 $562 $1,370,284 $(371) $ $413,282 $(3,169) $(675,767) $1,104,864   2,000,000  $20   2,300,000  $23   56,179,075  $562  $1,370,284  $  $(371) $413,282  $(3,169) $(675,767) $1,104,864 
                                                     
Net income 10,482 10,482                                       10,482           10,482 
Other comprehensive income 4,745 4,745                                           4,745       4,745 
Vesting of Restricted Stock 81,142 1 1,886 1,887                   81,142   1   1,886                       1,887 
Conversion of LP units to common shares 14,700  488 488                   14,700      488                       488 
Issuance of Common Shares 34,542,151 345 1,021,828 1,022,173                   34,542,151   345   1,021,828                       1,022,173 
Repurchase of Common Shares  (3,009,200)  (30)  (94,443)  (94,473)                  (3,009,200)  (30)  (94,443)                      (94,473)
Issuance of trustee/bonus shares 3,257  90 90                   3,257      90                       90 
Payment of employee stock loans 371 371                                   371               371 
Exercise of warrants/options 515,916 5 11,408 11,413                   515,916   5   11,408                       11,413 
Preferred Share distributions  (7,992)  (7,992)                                              (7,992)  (7,992)
Distributions ($1.76 per share)  (156,122)  (156,122)                                              (156,122)  (156,122)
                                                                       
                                                     
BALANCE, December 31, 2006  $ 2,000,000 $20 2,300,000 $23 88,327,041 $883 $2,311,541 $ $ $423,764 $1,576 $(839,881) $1,897,926   2,000,000  $20   2,300,000  $23   88,327,041  $883  $2,311,541  $  $  $423,764  $1,576  $(839,881) $1,897,926 
                                                                                   
Net income                                      56,453           56,453 
Other comprehensive income                                          (3,461)      (3,461)
Vesting of Restricted Stock                  66,086   1   2,097                       2,098 
Conversion of LP units to common shares                  21,951      716                       716 
Minority interest reclassification                        (2,828)                      (2,828)
Repurchase of Common Shares in Treasury and for deferred comp plan                  (1,780,600)  (18)     (59,408)                  (59,426)
Common Shares used for deferred comp plan                  172,565   2      5,959                   5,961 
Issuance of trustee/bonus shares                  1,664      53                       53 
Deferred compensation obligation                                             
Exercise of warrants/options                  206,893   2   7,831                       7,833 
Preferred Share distributions                                              (7,992)  (7,992)
Distributions ($1.76 per share)                                              (154,098)  (154,098)
                                        
                                                    
BALANCE, December 31, 2007  2,000,000  $20   2,300,000  $23   87,015,600  $870  $2,319,410  $(53,449) $  $480,217  $(1,885) $(1,001,971) $1,743,235 
                                        
The accompanying notes are an integralintergral part of these consolidated financial statements.

F - 6


BRANDYWINE REALTY TRUST
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
                        
 Years ended December 31,  Years ended December 31, 
 2006 2005 2004  2007 2006 2005 
Cash flows from operating activities:
  
Net income (loss) $10,482 $42,767 $60,303 
Adjustments to reconcile net income (loss) to net cash from operating activities: 
Net income $56,453 $10,482 $42,767 
Adjustments to reconcile net income to net cash from operating activities: 
Depreciation 186,454 84,561 64,175  179,724 186,454 84,561 
Amortization:  
Deferred financing costs 4,607 3,721 5,088  4,497 4,607 3,721 
Deferred leasing costs 12,258 8,895 7,841  15,672 12,258 8,895 
Acquired above (below) market leases, net  (9,034)  (1,542)  (406)  (12,225)  (9,034)  (1,542)
Acquired lease intangibles 66,317 18,573 8,112  51,669 66,317 18,573 
Deferred compensation costs 3,447 2,764 2,114  4,672 3,447 2,764 
Straight-line rent  (31,326)  (14,952)  (6,023)  (28,304)  (31,326)  (14,952)
Provision for doubtful accounts 3,510 792 467  3,147 3,510 792 
Real estate venture income in excess of distributions  (15)  (769)  (293)  (55)  (15)  (769)
Net gain on sale of interests in real estate  (34,433)  (6,820)  (6,111)  (66,662)  (34,433)  (6,820)
Gain on termination of purchase contract  (3,147)      (3,147)  
Minority interest 2,113 1,400 2,573  2,611 2,113 1,400 
Changes in assets and liabilities:  
Accounts receivable 1,365  (598)  (1,769) 6,448 1,365  (598)
Other assets  (4,855)  (11,810) 9,840   (6,268)  (4,855)  (11,810)
Accounts payable and accrued expenses  (1,154)  (2,407) 3,199   (10,524)  (1,154)  (2,407)
Tenant security deposits and deferred rents 29,209  (40) 3,750  12,634 29,209  (40)
Other liabilities 5,768 612 30  6,328 5,768 612 
              
Net cash from operating activities 241,566 125,147 152,890  219,817 241,566 125,147 
 
Cash flows from investing activities:
  
Acquisition of Prentiss  (935,856)      (935,856)  
Acquisition of properties  (231,244)  (92,674)  (569,343)  (88,890)  (231,244)  (92,674)
Acquisition of minority interest in consolidated real estate venture  (63,732)   
Sales of properties, net 347,652 29,428 22,283  472,590 347,652 29,428 
Proceeds from termination of purchase contract 3,147     3,147  
Capital expenditures  (242,516)  (177,035)  (131,998)  (267,103)  (242,516)  (177,035)
Investment in marketable securities 181,556 423    181,556 423 
Investment in unconsolidated Real Estate Ventures  (753)  (269)  (233)  (897)  (753)  (269)
Restricted cash  (2,981)  (518)  (1,320) 4,898  (2,981)  (518)
Cash distributions from unconsolidated Real Estate Ventures in excess of equity in income 3,762 462 1,402  3,711 3,762 462 
Increase in cash due to consolidation of variable interest entities   426 
Proceeds from repayment of mortgage notes receivable   6,470 
Leasing costs  (38,561)  (12,234)  (10,339)  (16,104)  (38,561)  (12,234)
              
Net cash from investing activities  (915,794)  (252,417)  (682,652)
Net cash from (used in) investing activities 44,473  (915,794)  (252,417)
 
Cash flows from financing activities:
  
Proceeds from Credit Facility borrowings 726,000 372,142 570,000  959,602 726,000 372,142 
Repayments of Credit Facility borrowings  (756,000)  (434,142)  (723,000)  (888,875)  (756,000)  (434,142)
Proceeds from mortgage notes payable 20,520     20,520  
Repayments of secured debt  (213,338)  (23,457)  (50,165)
Repayments of mortgage notes payable  (272,027)  (213,338)  (23,457)
Proceeds from term loan 750,000  433,000  150,000 750,000  
Repayments of term loan  (750,000)   (533,000)   (750,000)  
Proceeds from unsecured notes 1,193,217 299,976 636,398  300,000 1,193,217 299,976 
Proceeds from forward starting swap termination 3,266   
Repayments of unsecured notes  (299,925)   
Net settlement of of hedge transactions  (2,712) 3,266  
Repayments on employee stock loans 371 50 1,112   371 50 
Proceeds from issuance of shares, net   406,767 
Debt financing costs  (14,319)  (4,026)  (13,580)  (4,474)  (14,319)  (4,026)
Exercise of stock options 11,414 18,999   6,011 11,414 18,999 
Repurchases of Common Shares and minority interest units  (94,472)  (239)  (95,436)  (59,426)  (94,472)  (239)
Distributions paid to shareholders  (151,102)  (106,608)  (90,457)  (162,368)  (151,102)  (106,608)
Distributions to minority interest holders  (33,124)  (3,597)  (5,083)  (9,875)  (33,124)  (3,597)
              
Net cash from financing activities 692,433 119,098 536,556 
Net cash used in (from) financing activities  (284,069) 692,433 119,098 
              
Increase (decrease) in cash and cash equivalents 18,205  (8,172) 6,794   (19,779) 18,205  (8,172)
Cash and cash equivalents at beginning of period 7,174 15,346 8,552  25,379 7,174 15,346 
              
Cash and cash equivalents at end of period $25,379 $7,174 $15,346  $5,600 $25,379 $7,174 
              
Supplemental disclosure:  
Cash paid for interest, net of capitalized interest $154,258 $53,450 $43,281  $182,790 $154,258 $53,450 
Supplemental disclosure of non-cash activity:  
Common shares issued in the Prentiss acquisition 1,022,173     1,022,173  
Operating Partnership units issued in Prentiss acquisitions 64,103     64,103  
Operating Partnership units issued in property acquisitions 13,819  10,000 
Debt assumed in property acquisitions   79,330 
Operating Partnership units issued in property acquistions  13,819  
Debt, minority interest and other liabilities, net, assumed in the Prentiss acquisition 679,520     679,520  
The accompanying notes are an integral part of these consolidated financial statements.

F - 7


BRANDYWINE REALTY TRUST
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
DECEMBER 31, 2007, 2006 2005 AND 20042005
1.ORGANIZATION AND NATURE OF OPERATIONS
Brandywine Realty Trust, a Maryland real estate investment trust, or REIT, is a self-administered and self-managed real estate investment trust, or REIT, active in acquiring, developing, redeveloping, leasing and managing office and industrial properties. Brandywine Realty Trust owns its assets and conducts its operations through Brandywine Operating Partnership, L.P. a Delaware limited partnership (the “Operating Partnership”) and subsidiaries of the Operating Partnership. Brandywine Realty Trust, the Operating Partnership and their consolidated subsidiaries are collectively referred to below as the “Company.”
As of December 31, 2006,2007, the Company owned 261216 office properties, 23 industrial facilities and one mixed-use property (collectively, the “Properties”) containing an aggregate of approximately 28.224.9 million net rentable square feet. The Company also has sixseven properties under development threeand seven properties under redevelopment and four lease-up properties containing an aggregate 2.13.7 million net rentable square feet. As of December 31, 2006,2007, the Company consolidates three office properties owned by real estate ventures containing 0.4 million net rentable square feet. Therefore, the Company owns and consolidates 257 properties with an aggregate of 29.0 million net rentable square feet. As of December 31, 2007, the Company owned economic interests in 1114 unconsolidated real estate ventures that contain approximately 2.7 million net rentable square feet and in four consolidated real estate ventures that own 15 office properties containing approximately 1.54.4 million net rentable square feet (collectively, the “Real Estate Ventures”). In addition, as of December 31, 2006,2007, the Company owned approximately 490417 acres of undeveloped land. The Properties and the properties owned by the Real Estate Ventures are located in and surrounding Philadelphia, PA, Wilmington, DE, Southern and Central New Jersey, Richmond, VA, Metropolitan Washington, D.C., Dallas/Fort Worth, Austin, TX and Oakland San Diego and Los Angeles.Rancho Bernardo, CA. In addition to managing properties that the Company owns, as of December 31, 2006,2007, the Company was managing approximately 11.014.5 million net rentable square feet of office and industrial properties for third parties.
All references to building square footage, acres, occupancy percentage and the number of buildings are unaudited.
Brandywine Realty Trust is the sole general partner of the Operating Partnership and, as of December 31, 2007, owned a 95.8% interest in the Operating Partnership. The Company conducts its third-party real estate management services business primarily through five management companies (collectively, the “Management Companies”): Brandywine Realty Services Corporation (“BRSCO”), BTRS, Inc. (“BTRS”), Brandywine Properties I Limited, Inc. (“BPI”), (“BDN”) Brokerage LLC (“BBL”) and Brandywine Properties Management, L.P. (“BPM”). Each of BRSCO, BTRS and BPI is a taxable REIT subsidiary. The Operating Partnership owns, directly and indirectly, currently 100% of each of BRSCO, BTRS, BPI, BBL and BPM.
Prior to December 2007, 5% of BRSCO, one of the consolidated management services companies, was owned by a partnership comprised of a current executive and former executive of the Company, each of whom is a member of the Company’s Board of Trustees, In December 2007, the Operating Partnership bought out this interest for a nominal amount and BRSCO is now wholly owned.
As of December 31, 2007, the Management Companies were managing properties containing an aggregate of approximately 43.0 million net rentable square feet, of which approximately 28.5 million net rentable square feet related to Properties owned by the Company and approximately 14.5 million net rentable square feet related to properties owned by third parties and Real Estate Ventures.
As more fully described in Note 3, on January 5, 2006, the Company acquired Prentiss Properties Trust (“Prentiss”) pursuant to an Agreement and Plan of Merger (the “Merger Agreement”) that the Company entered into with Prentiss on October 3, 2005.
Brandywine Realty Trust is the sole general partner of the Operating Partnership and, as of December 31, 2006, owned a 95.7% interest in the Operating Partnership. The Company conducts its third-party real estate management services business primarily through four management companies (collectively, the “Management Companies”): Brandywine Realty Services Corporation (“BRSCO”), BTRS, Inc., (“BTRS”) Brandywine Properties I Limited, Inc. (“BPI”) and Brandywine Properties Management, L.P. (“BPM”). Each of BRSCO, BTRS and BPI is a taxable REIT subsidiaries. The Operating Partnership owns a 95% interest in BRSCO and the remaining 5% interest is owned by a partnership comprised of a current executive and former executive of the Company, each of whom is a member of the Company’s Board of Trustees. The Operating Partnership owns, directly and indirectly, 100% of each of BTRS, BPI and BPM.
As of December 31, 2006, the Management Companies were managing properties containing an aggregate of approximately 42.3 million net rentable square feet, of which approximately 28.2 million net rentable square feet related to Properties owned by the Company and approximately 13.0 million net rentable square feet related to properties owned by third parties and Real Estate Ventures.

F - 8


2.SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Principles of Consolidation
When the Company obtains an economic interest in an entity, the Company evaluates the entity to determine if the entity is deemed a variable interest entity (“VIE”), and if the Company is deemed to be the primary beneficiary, in accordance with FASB Interpretation No. 46R, “Consolidation of Variable Interest

F - 8


Entities” (“FIN 46R”). When an entity is not deemed to be a VIE, the Company considers the provisions of EITF 04-05, “Determining Whether a General Partner, or the General Partners as a Group, Controls a Limited Partnership or Similar Entity When the Limited Partners Have Certain Rights” (“EITF 04-05”). The Company consolidates (i) entities that are VIEs and of which the Company is deemed to be the primary beneficiary and (ii) entities that are non-VIEs which the Company controls and the limited partners do not have the ability to dissolve the entity or remove the Company without cause nor substantive participating rights. Entities that the Company accounts for under the equity method (i.e., at cost, increased or decreased by the Company’s share of earnings or losses, plus contributions, less distributions) include (i) entities that are VIEs and of which the Company is not deemed to be the primary beneficiary (ii) entities that are non-VIEs which the Company does not control, but over which the Company has the ability to exercise significant influence and (iii) entities that are non-VIE’s that the Company controls through its general partner status, but the limited partners in the entity have the substantive ability to dissolve the entity or remove the Company without cause or have substantive participating rights. The Company will reconsider its determination of whether an entity is a VIE and who the primary beneficiary is, and whether or not the limited partners in an entity have substantive rights, if certain events occur that are likely to cause a change in the original determinations. The portion of these entities not owned by the Company is presented as minority interest as of and during the periods consolidated. All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Management makes significant estimates regarding revenue, impairment of long-lived assets, allowance for doubtful accounts and deferred costs.
Operating Properties
Operating properties are carried at historical cost less accumulated depreciation and impairment losses.
The cost of operating properties reflects their purchase price or development cost. Costs incurred for the acquisition and renovation of an operating property are capitalized to the Company’s investment in that property. Ordinary repairs and maintenance are expensed as incurred; major replacements and betterments, which improve or extend the life of the asset, are capitalized and depreciated over their estimated useful lives. Fully-depreciated assets are removed from the accounts.
Purchase Price Allocation
The Company allocates the purchase price of properties to net tangible and identified intangible assets acquired based on fair values. Above-market and below-market in-place lease values for acquired properties are recorded based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) the Company’s estimate of the fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease. Capitalized above-market lease values are amortized as a reduction of rental income over the remaining non-cancelable terms of the respective leases. Capitalized below-market lease values are amortized as an increase to rental income over the remaining non-cancelable terms of the respective leases, including any below market fixed-rate renewal periods.
Other intangible assets also include amounts representing the value of tenant relationships and in-place leases based on the Company’s evaluation of the specific characteristics of each tenant’s lease and the Company’s overall relationship with the respective tenant. The Company estimates the cost to execute

F - 9


leases with terms similar to the remaining lease terms of the in-place leases, including leasing commissions, legal and other related expenses. This intangible asset is amortized to expense over the remaining term of the respective leases. Company estimates of value are made using methods similar to those used by independent appraisers or by using independent appraisals. Factors considered by the Company in this

F - 9


analysis include an estimate of the carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. In estimating carrying costs, the Company includes real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, which primarily range from three to twelve months. The Company also considers information obtained about each property as a result of its pre-acquisition due diligence, marketing and leasing activities in estimating the fair value of the tangible and intangible assets acquired. The Company also uses the information obtained as a result of its pre-acquisition due diligence as part of its consideration of FIN 47,Accounting for Conditional Asset Retirement Obligations (“FIN 47”) and when necessary, will record a conditional asset retirement obligation as part of its purchase price.
Characteristics considered by the Company in allocating value to its tenant relationships include the nature and extent of the Company’s business relationship with the tenant, growth prospects for developing new business with the tenant, the tenant’s credit quality and expectations of lease renewals, among other factors. The value of tenant relationship intangibles is amortized over the remaining initial lease term and expected renewals, but in no event longer than the remaining depreciable life of the building. The value of in-place leases is amortized over the remaining non-cancelable term of the respective leases and any fixed-rate renewal periods.
In the event that a tenant terminates its lease, the unamortized portion of each intangible, including market rate adjustments (above or below), in-place lease values and tenant relationship values, would be charged to expense.expense and market rate adjustments would be recorded to revenue.
Depreciation and Amortization
The costs of buildings and improvements are depreciated using the straight-line method based on the following useful lives: buildings and improvements (five to 55 years) and tenant improvements (the shorter of the lease term or the life of the asset).
Construction in Progress
Project costs directly associated with the development and construction of a real estate project are capitalized as construction in progress. In addition, interest, real estate taxes and general and administrativeother expenses that are directly associated with the Company’s development activities are capitalized until the property is placed in service. Internal direct construction costs totaling $4.8 million in 2007, $4.9 million in 2006 and $3.4 million in 2005 and $3.0interest totaling $17.5 million in 2004 and interest totaling2007, $9.5 million in 2006 and $9.6 million in 2005 and $3.0 million in 2004 were capitalized related to development of certain Properties and land holdings.
Impairment of Long-Lived Assets
Statement of Financial Accounting Standard No. 144 (“SFAS 144”),Accounting for the Impairment or Disposal of Long-Lived Assets, provides a single accounting model for long-lived assets as held-for-sale, broadens the scope of businesses to be disposed of that qualify for reporting as discontinued operations and changes the timing of recognizing losses on such operations.
In accordance with SFAS 144, long-lived assets, such as real estate investments and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of are separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The other assets and liabilities related to assets classified as held-for-sale are presented separately in the consolidated balance sheet. As of December 31, 2006, Company had two property classified as held for sale. The Company had no properties classified as held for sale at December 31, 2005.2007. As of December 31, 2006, Company had two properties classified as held for sale.

F - 10


Cash and Cash Equivalents
Cash and cash equivalents are highly-liquid investments with original maturities of three months or less. The Company maintains cash equivalents in financial institutions in excess of insured limits, but believes this risk is mitigated by only investing in or through major financial institutions.
Restricted Cash
Restricted cash consists of cash held as collateral to provide credit enhancement for the Company’s mortgage debt, cash for property taxes, capital expenditures and tenant improvements. Restricted cash is included in other assets as discussed below.
Accounts Receivable
Leases with tenants are accounted for as operating leases. Minimum annual rentals under tenant leases are recognized on a straight-line basis over the term of the related lease. The cumulative difference between lease revenue recognized under the straight-line method and contractual lease payment terms is recorded as “accrued rent receivable, net” on the accompanying balance sheets. Included in current tenant receivables are tenant reimbursements which are comprised of amounts recoverable from tenants for common area maintenance expenses and certain other recoverable expenses that are recognized as revenue in the period in which the related expenses are incurred. As of December 31, 2007, no tenant represented more than 10% of accounts receivable. As of December 31, 2006, one tenant represented approximately 17% of accounts receivable, a significant portion of which is for reimbursements in connection with a tenant improvement project. As of December 31, 2005, no tenant represented more than 10% of accounts receivable.
Tenant receivables and accrued rent receivables are carried net of the allowances for doubtful accounts of $3.8 million and $6.4 million in 2007, respectively, and $4.5 million and $4.8 million in 2006, respectively and $1.9 million and $3.0 million in 2005, respectively. The allowance is an estimate based on two calculations that are combined to determine the total amount reserved. First, the Company evaluates specific accounts where it has determined that a tenant may have an inability to meet its financial obligations. In these situations, the Company uses its judgment, based on the facts and circumstances, and records a specific reserve for that tenant against amounts due to reduce the receivable to the amount that the Company expects to collect. These reserves are reevaluated and adjusted as additional information becomes available. Second, a reserve is established for all tenants based on a range of percentages applied to receivable aging categories. These percentages are based on historical collection and write-off experience. If the financial condition of the Company’s tenants were to deteriorate, additional allowances may be required.
Investments in Unconsolidated Real Estate Ventures
The Company accounts for its investments in unconsolidated Real Estate Ventures under the equity method of accounting as it is not the primary beneficiary (for VIE’s) and the Company exercises significant influence, but does not control these entities under the provisions of the entities’ governing agreements pursuant to EITF 04-05. These investments are recorded initially at cost, as Investments in Real Estate Ventures, and subsequently adjusted for equity in earnings and cash contributions and distributions.
On a periodic basis, management assesses whether there are any indicators that the value of the Company’s investments in unconsolidated Real Estate Ventures may be other than temporarily impaired. An investment is impaired only if the value of the investment, as estimated by management, is less than the carrying value of the investment. To the extent impairment has occurred, the loss shall be measured as the excess of the carrying amount of the investment over the value of the investment, as estimated by management.
To the extent that the Company acquires an interest in or contributes assets to a Real Estate Venture project, the difference between the Company’s cost basis in the investment in venture and in the assets, intangibles and liabilities of the Real Estate Venture is amortized over the life of the related assets, intangibles and liabilities and such adjustment is included in the Company’s share of equity in income of unconsolidated ventures.

F - 11


Deferred Costs
Costs incurred in connection with property leasing are capitalized as deferred leasing costs. Deferred leasing costs consist primarily of leasing commissions and internal leasing costs that are amortized on the straight-line method over

F - 11


the life of the respective lease which generally ranges from one to 15 years. Management re-evaluates the remaining useful lives of leasing costs as economic and market conditions change.
Costs incurred in connection with debt financing are capitalized as deferred financing costs and charged to interest expense over the terms of the related debt agreements. Deferred financing costs consist primarily of loan fees which are amortized over the related loan term. Management re-evaluates the remaining useful lives of financing costs as economic and market conditions change.
Other Assets
As of December 31, 2007, other assets included prepaid real estate taxes of $8.0 million, prepaid insurance of $5.6 million, marketable securities of $3.2 million, deposits on properties expected to be purchased in 2008 totaling $1.6 million, a tenant allowance totalling $8.0 million, cash surrender value of life insurance of $7.7 million, furniture, fixtures and equipment of $7.2 million, restricted cash of $17.2 million and $16.0 million of other assets. Also included in this balance are a $3.1 million note receivable with a 20 year amortization period for principal and interest (balloon payment in March 2008) that bears interest at 8.5% and a $7.8 million note receivable with a 20 year amortization period for principal and interest (balloon payment in December 2008) that bears interest at 8.5%.
As of December 31, 2006, other assets included a direct financing lease of $14.6 million, prepaid real estate taxes of $9.7 million, prepaid insurance of $4.4 million, marketable securities of $6.8 million, deposits on properties expected to be purchased in 2007 totaling $2.2 million, cash surrender value of life insurance of $11.6 million, furniture, fixtures and equipment of $5.8$6.8 million, restricted cash of $22.6 and $6$18.4 million of other assets. Also included in this balance are a $4.3 million note receivable with a 20 year amortization period for principal and interest (balloon payment in December 2007)March 2008) that bears interest at 7.5%8.5% and an $8.0 million note receivable with a 20 year amortization period for principal and interest (balloon payment in December 2007)2008) that bears interest at 7.5%.
As of December 31, 2005, other assets included a direct financing lease of $15.2 million, prepaid real estate taxes of $8.1 million, deposits on properties to be purchased in 2006 totaling $6.9 million, cash surrender value of life insurance of $8.2 million, furniture, fixtures and equipment of $2.6 million and $4.3 million of other assets. Also included in this balance is a $4.3 million note receivable with a 20 year amortization period for principal and interest (balloon payment in December 2007) that bears interest at 7.5%8.5%.
Revenue Recognition
Rental revenue is recognized on the straight-line basis from the later of the date of the commencement of the lease or the date of acquisition of the property subject to existing leases, which averages minimum rents over the terms of the leases. The cumulative difference between lease revenue recognized under this method and contractual lease payment terms is recorded as “accrued rent receivable” on the accompanying balance sheets. The straight-line rent adjustment increased revenue by approximately $25.0 million in 2007, $31.3 million in 2006 and $15.0 million in 20052005. Deferred rents on the balance sheet represent rental revenue received prior to their due dates and $6.0amounts paid by the tenant for certain improvements considered to be landlord assets that will remain the Company’s property at the end of the tenant’s lease term. The amortization of these amounts paid by the tenant for such improvements is calculated on a straight-line basis over the term of the tenant’s lease and is a component of straight-line rental income and increased revenue by $3.3 million in 2004. The leases2007 and $1.3 million in 2006. Leases also typically provide for tenant reimbursement of a portion of common area maintenance and other operating expenses.expenses to the extent that a tenant’s pro rata share of expenses exceeds a base year level set in the lease. Other income is recorded when earned and is primarily comprised of termination fees received from tenants, bankruptcy settlement fees, third party leasing commissions, and third party management fees. During 2007, 2006, 2005, and 2004,2005, the Company earned $10.2 million, $7.8 million, $6.1 million, and $1.5$6.1 million in termination fees. In 2004, the Company recorded approximately $1.0 million plus accrued interest as other income relating to the settlement of litigation. Additionally, during 2004, the Company recorded approximately $0.9 million in other income from the favorable settlement of an accrued liability. Deferred rents represent rental revenue received from tenants prior to their due dates.
No tenant represented greater than 10% of the Company’s rental revenue in 2007, 2006 2005 or 2004.2005.
Income Taxes
The Company has elected to be treated as a REIT under Sections 856 through 860 of the Internal Revenue

F - 12


Code of 1986, as amended (the “Code”). In addition, the Company has several subsidiary REITs. In order to maintain their qualification as a REIT, the Company and its REIT subsidiaries are required to, among other things, distribute at least 90% of its REIT taxable income to its stockholders and meet certain tests regarding the nature of its income and assets. As REITs, the Company and its REIT subsidiaries are not subject to federal income tax with respect to the portion of its income that meets certain criteria and is distributed annually to the stockholders. Accordingly, no provision for federal income taxes is included in the accompanying consolidated financial statements with respect to the operations of these operations.entities. The Company and its REIT subsidiaries intend to continue to operate in a manner that allows them to continue to meet the requirements for taxation as REITs. Many of these requirements, however, are highly technical and complex. If the Company or one of its REIT subsidiaries were to fail to meet these requirements, the Company would be subject to federal income tax. The Company is subject to certain state and local taxes. Provision for such taxes has been included in general and administrative expenses in the Company’s Consolidated Statements of Operations and Comprehensive Income.

F - 12


The tax basis in the Company’s assets was $4.5 billion as of December 31, 2007 and $4.2 billion as of December 31, 2006 and $1.9 billion as of December 31, 2005.2006.
The Company is subject to a 4% federal excise tax if sufficient taxable income is not distributed within prescribed time limits. The excise tax equals 4% of the annual amount, if any, by which the sum of (a) 85% of the Company’s ordinary income and (b) 95% of the Company’s net capital gain exceeds cash distributions and certain taxes paid by the Company. No excise tax was incurred in 2007, 2006, 2005, or 2004.2005.
The Company may elect to treat one or more of its subsidiaries as a taxable REIT subsidiary (“TRS”). In general, a TRS of the Company may perform additional services for tenants of the Company and generally may engage in any real estate or non-real estate related business (except for the operation or management of health care facilities or lodging facilities or the provision to any person, under a franchise, license or otherwise, of rights to any brand name under which any lodging facility or health care facility is operated). A TRS is subject to corporate federal income tax. The Company has elected to treat certain of its corporate subsidiaries as TRSs, these entities provide third party property management services and certain services to tenants that could not otherwise be provided. At December 31, 2006,2007, the Company’s TRSs had tax net operating loss (“NOL”) carryforwardcarryforwards of approximately $3.0$2.5 million, expiring from 2013 to 2020.2027. The Company has ascribed a full valuation allowance to its net deferred tax assets.
The Company adopted the provisions of FASB Interpretation No. 48,Accounting for Uncertainty in Income Taxes, an Interpretation of FASB Statement No. 109 (“FIN 48”) on January 1, 2007. As a result of the implementation of FIN 48, the Company recognized no material adjustments regarding our tax accounting treatment. The Company expects to recognize interest and penalities, to the extent incurred related to uncertain tax positions, if any, as income tax expense, which would be included in general and administrative expense.
Earnings Per Share
Basic earnings per share is calculated by dividing income allocated to Common Shares by the weighted-average number of shares outstanding during the period. Diluted earnings per share includes the effect of common share equivalents outstanding during the period.
Stock-Based Compensation Plans
The Company maintains shareholder-approved equity incentive plans. The Compensation Committee of the Company’s Board of Trustees authorizes awards under these plans. In May 2005,2007, the Company’s shareholders approved an amendment to the Company’s Amended and Restated 1997 Long-Term Incentive Plan (the “1997 Plan”) that increased. The amendment provided for the numbermerger of commonthe Prentiss Properties Trust 2005 Share Incentive Plan (the “Prentiss 2005 Plan”) with and into the 1997 Plan, thereby transferring into the 1997 Plan all of the shares that may be issued or subject toremained available for award under the Prentiss 2005 Plan. The Company had previously assumed the Prentiss 2005 Plan, together with other Prentiss incentive plans, as part of the Company’s January 2006 acquisition of Prentiss Properties Trust (“Prentiss”). The 1997 Plan from 5,000,000 to 6,600,000. The May 2005 amendment provided thatreserves 500,000 of thecommon shares under the 1997 Plan are available solely for awards under options and share appreciation rights that have an exercise or strike price not less thanat least equal to the market price of the common shares on the date of award and the remaining 6,100,000 shares under the 1997 Plan are available for any type of award, under the 1997 Plan.including restricted share and performance share awards and options. Incentive stock options may not be granted atwith an exercise prices lessprice that is lower than fair valuethe market price of the common shares aton the time of grant.grant date. All options awarded by the Company to date are non-qualified stock options that generally vested overhad an initial vesting schedule that ranged from two to fiveten years. As of December 31, 2006, 2.62007, approximately 4.1 million common shares remained available for future award under the 1997 Plan. As part ofPlan (including the Company’s January 2006 acquisition of Prentiss, the Company assumed Prentiss’ three share incentive plans. As of December 31, 2006, approximately 1,700,000 common500,000 shares remainthat are limited to option

F - 13


awards as described above, and without giving effect to any shares that would become available for issuance or subject to award under the assumed Prentiss share incentive plans; however, any such issuances or awards under the assumed Prentiss plan may be made only to those Company employees who had been employed by Prentiss immediately priorif and to the Company’s acquisition of Prentissextent that outstanding awards lapse, expire or to those Company employees hired after the Prentiss acquisition.are forfeited).
On January 1, 2002, the Company began to expense the fair value of stock-based compensation awards granted subsequent to January 1, 2002, over the applicable vesting period as a component of general and administrative expenses in the Company’s consolidated Statements of Operations. The Company recognized stock-based compensation expense of $4,672,000 in 2007, $3,447,000 in 2006 and $2,764,000 in 2005 and $2,114,000 in 2004.
For stock-based compensation awards granted prior to 2002, the Company accounted for stock options issued under the recognition and measurement provisions of APB No. 25,Accounting for Stock Issued to Employees and Related Interpretations. Under this method, no stock-based compensation expense was recognized. Because stock options granted prior to 2002 vested over a three-year term, the resulting compensation cost based on the fair value of the awards on the date of grant, on a pro forma basis, would have been expensed in 2004, 2005, and 2006. Accordingly, had the Company applied the fair value recognition provisions of SFAS 123, the net income applicable to common shares would remain the same

F - 13


on a pro forma basis for in 2006 and would have been reduced by $511,000 and $556,000 in 2005 and 2004, respectively, with no change in basic or diluted net income per share.2005.
Comprehensive Income
Comprehensive income or loss is recorded in accordance with the provisions of SFAS 130 (“SFAS 130”),Reporting Comprehensive Income. SFAS 130 establishes standards for reporting comprehensive income and its components in financial statements. Comprehensive income includes unrealized gains and losses on available-for-sale securities and the effective portions of changes in the fair value of derivatives.
Accounting for Derivative Instruments and Hedging Activities
The Company accounts for its derivative instruments and hedging activities under SFAS No. 133 (“SFAS 133”),Accounting for Derivative Instruments and Hedging Activities, and its corresponding amendments under SFAS No. 138,Accounting for Certain Derivative Instruments and Hedging Activities – An Amendment of SFAS 133. SFAS 133 requires the Company to measure every derivative instrument (including certain derivative instruments embedded in other contracts) at fair value and record them in the balance sheet as either an asset or liability. For derivatives designated as fair value hedges, the changes in fair value of both the derivative instrument and the hedged item are recorded in earnings. For derivatives designated as cash flow hedges, the effective portions of changes in the fair value of the derivative are reported in other comprehensive income. Changes in fair value of derivative instruments and ineffective portions of hedges are recognized in earnings in the current period. During 2007, the Company recognized $0.2 million in the statement of operations for the ineffective portion of its cash flow hedges and $3.7 million upon termination of certain of its cash flow hedges. For the three years ended December 31, 2005, 20042006 and 2003,2005, the Company was not party to any derivative contract designated as a fair value hedge and there are no ineffective portions of our cash flow hedges. See Note 12.8.
The Company actively manages its ratio of fixed-to-floating rate debt. To manage its fixed and floating rate debt in a cost-effective manner, the Company, from time to time, enters into interest rate swap agreements as cash flow hedges, under which it agrees to exchange various combinations of fixed and/or variable interest rates based on agreed upon notional amounts. See Note 12.8.
Reclassifications
Certain amounts have been reclassified in prior years to conform to the current year presentation. The reclassifications are primarily due to the treatment of sold properties as discontinued operations on the statement of operations for all periods presented.presented and the reclassification of labor reimbursements received under our third party contracts to a gross presentation.
New Pronouncements
In December 2007, the FASB issued Statement No. 141 (revised 2007),“Business Combinations”(“SFAS 141(R)”), which establishes principles and requirements for how the acquirer shall recognize and measure in its financial statements the identifiable assets acquired, liabilities assumed, any noncontrolling interest in the acquiree and goodwill acquired in a business combination. This statement is effective for business combinations for which the acquisition date is on or after the beginning of the first annual reporting period beginning on or after December 15, 2008. The Company is currently assessing the potential impact that the adoption of SFAS 141(R) will have on its financial position and results of operations.
In December 2007, the FASB issued Statement No. 160,“Noncontrolling Interests in Consolidated Financial Statements — an Amendment of ARB No. 51”(“SFAS 160”), which establishes and expands

F - 14


accounting and reporting standards for minority interests, which will be recharacterized as noncontrolling interests, in a subsidiary and the deconsolidation of a subsidiary. SFAS 160 is effective for business combinations for which the acquisition date is on or after the beginning of the first annual reporting period beginning on or after December 15, 2008. This statement is effective for fiscal years beginning on or after December 15, 2008. The Company is currently assessing the potential impact that the adoption of SFAS 160 will have on its financial position and results of operations.
In June 2007, the Accounting Standards Executive Committee of the American Institute of Certified Public Accountants (“AICPA”) issued Statement of Position 07-1, “Clarification of the Scope of the Audit and Accounting Guide Investment Companies and Accounting by Parent Companies and Equity Method Investors for Investments in Investment Companies” (“SOP 07-1”). SOP 07-1 addresses when the accounting principles of the AICPA Audit and Accounting Guide “Investment Companies” must be applied by an entity and whether investment company accounting must be retained by a parent company in consolidation or by an investor in the application of the equity method of accounting. In addition, SOP 07-1 includes certain disclosure requirements for parent companies and equity method investors in investment companies that retain investment company accounting in the parent company’s consolidated financial statements or the financial statements of an equity method investor. On February 14, 2008, FSP No. SOP 07-1-1 was issued to delay indefinitely the effective date of SOP 07-1 and prohibit adoption of SOP 07-1 for an entity that has not early adopted SOP 07-1 before issuance of the final FSP. The Company is currently evaluating the impact and believes that the adoption of this standard will not have a material effect on its financial position and results of operations.
In February 2007, the FASB issued Statement No. 159, “The Fair Value Option for Financial Assets and Financial Liabilities” (“SFAS 159”), which gives entities the option to measure eligible financial assets, financial liabilities and firm commitments at fair value on an instrument-by-instrument basis, that are otherwise not permitted to be accounted for at fair value under other accounting standards. The election to use the fair value option is available when an entity first recognizes a financial asset or financial liability or upon entering into a firm commitment. Subsequent changes (i.e., unrealized gains and losses) in fair value must be recorded in earnings. Additionally, SFAS 159 allows for a one-time election for existing positions upon adoption, with the transition adjustment recorded to beginning retained earnings. This statement is effective for fiscal years beginning after November 15, 2007. The Company is currently assessing the potential impact that the adoption of SFAS 159 will have on its financial position and results of operations.
In September 2006, the FASB issued Statement No. 157,Fair Value Measurements(“SFAS No. 157”). SFAS No. 157 provides guidance for using fair value to measure assets and liabilities. This statement clarifies the principle that fair value should be based on the assumptions that market participants would use when pricing the asset or liability. SFAS No. 157 establishes a fair value hierarchy, giving the highest priority to quoted prices in active markets and the lowest priority to unobservable data. SFAS No. 157 applies whenever other standards require assets or liabilities to be measured at fair value. SFAS No. 157 also provides for certain disclosure requirements, including, but not limited to, the valuation techniques used to measure fair value and a discussion of changes in valuation techniques, if any, during the period. This statement is effective in fiscal years beginning after November 15, 2007.2007, except for nonfinancial assets and nonfinancial liabilities that are not recognized or disclosed at fair value on a recurring basis, for which the effective date is fiscal years beginning after November 15, 2008. The Company is currently evaluating the impact and believes that the adoption of this standard on January 1, 2008 will not have a material effect on our consolidated financial statements.
In June 2006, the FASB issued Interpretation No. 48,Accounting for Uncertainty in Income Taxes, an Interpretation of FASB Statement No. 109(“FIN 48”). FIN 48 clarifies the accounting for uncertainty in income taxes recognized in a company’s financial statements and prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. FIN 48 also provides guidance on description, classification, interest and penalties, accounting in interim periods, disclosure and transition. FIN 48 became effective on January 1, 2007. The Company is currently evaluating the impact of adopting FIN 48.
In October 2005, the FASB issued Staff Position No. 13-1 “Accounting for Rental Costs Incurred during a Construction Period” (“FSP FAS 13-1”). FSP FAS 13-1 addresses the accounting for rental costs associated with operating leases that are incurred during the construction period. FSP FAS 13-1 makes no distinction between the right to use a leased asset during the construction period and the right to use that asset after the construction period. Therefore, rental costs associated with ground or building operating

F - 14


leases that are incurred during a construction period shall be recognized as rental expense, allocated over the lease term in accordance with SFAS No. 13 and Technical Bulletin 85-3. The terms of FSP FAS 13-1 are not applicable to lessees that account for the sale or rental of real estate projects in accordance with SFAS No. 67, “Accounting for Costs and Initial Rental Operations of Real Estate Projects.” FSP FAS 13-1 was effective for the first reporting period beginning after December 15, 2005. Retrospective application in accordance with SFAS 154 is permitted but not required. The adoption of FSP FAS 13-1 did not have a material effect on the consolidated financial statements of the Company.
In May 2005, the FASB issued SFAS No. 154, “Accounting Changes and Error Corrections” (“SFAS 154”). SFAS 154 replaces APB No. 20, “Accounting Changes” and SFAS No. 3, “Reporting Accounting Changes in Interim Financial Statements” and establishes retrospective application as the required method for reporting a change in accounting principle. SFAS 154 provides guidance for determining whether a retrospective application of a change in accounting principle is impracticable and for reporting a change when retrospective application is impracticable. SFAS 154 is effective for accounting changes and corrections of errors made in fiscal years beginning after December 15, 2005. The Company adopted SFAS 154 on January 1, 2006 and this adoption had no effect on the Company’sits financial position and results of operations.
In March 2005, the FASB issued FIN 47,Accounting for Conditional Asset Retirement Obligations, an interpretation of FASB Statement No. 143,Asset Retirement Obligations. FIN 47 provides clarification of the term “conditional asset retirement obligation” as used in SFAS 143, defined as a legal obligation to perform an asset retirement activity in which the timing and/or method of settlement are conditional on a future event that may or may not be within the control of the company. Under this standard, a company must record a liability for a conditional asset retirement obligation if the fair value of the obligation can be reasonably estimated. FIN 47 became effective in the Company’s fiscal quarter ended December 31, 2005. The Company adopted FIN 47 as required effective December 31, 2005 and the initial application of FIN 47 did not have a material effect on the consolidated financial statements of the Company.
3.REAL ESTATE INVESTMENTS
As of December 31, 20062007 and 2005,2006, the gross carrying value of the Company’s Properties was as follows:

F - 15


                
 December 31,  December 31, 
 2006 2005  2007 2006 
 (amounts in thousands)  (amounts in thousands) 
Land $756,400 $456,736  $727,979 $756,400 
Building and improvements 3,807,040 1,951,252  3,672,638 3,807,040 
Tenant improvements 363,865 152,073  412,946 363,865 
          
 $4,927,305 $2,560,061  $4,813,563 $4,927,305 
          
Acquisitions and Dispositions
The Company’s acquisitions were accounted for by the purchase method. The results of each acquired property are included in the Company’s results of operations from their respective purchase dates.
2007
DRA Joint Venture
On December 19, 2007, the Company formed G&I Interchange Office LLC, a new joint venture (the “Venture”) with G&I VI Investment Interchange Office LLC (“G&I VI”), an investment vehicle advised by DRA Advisors LLC. The Venture included interest in 29 office properties which were located in various counties in Pennsylvania, containing an aggregate of 1,616,227 net rentable square feet. The Company transferred or contributed 100% interests in 26 properties and transferred to the Venture an 89% interest in three of the properties with the remaining 11% interest in the three properties subject to a put/call at fixed prices after three years. In connection with the formation, the Company effectively transferred an 80% interest in the venture to G&I IV for cash and the venture borrowed approximately $184.0 million in third party financing the aggregate proceeds of which were distributed to the Company. The Company used the net proceeds of these transactions of approximately $230.9 million that it received in this transaction to reduce outstanding indebtedness under the Company’s unsecured revolving credit facility.
The Company was hired by the Venture to perform property management and leasing services. The joint venture agreements provide for certain control rights and participation as a joint venture partner and, based on an evaluation of control rights, the Company will not consolidate the Venture subsequent to its formation.
In connection with these transactions, the Company recorded a gain as a partial sale of $40.5 million. The Company’s continuing involvement with the properties through its joint venture interest and management fees and leasing commissions represents a significant continuing involvement in the properties. Accordingly, under EITF 03-13, “Applying the Conditions in Paragraph 42 of FASB Statement No. 144 in Determining Whether to Report Discontinued Operations”, the Company has determined that the gain on sale and the operations of the properties should not be included in discontinued operations.
Other 2007 Acquisitions and Dispositions
On November 30, 2007, the Company sold 111/113 Pencader Drive, an office property located in Newark, Delaware containing 52,665 net rentable square feet, for a sales price of $5.1 million.
On November 15, 2007, the Company sold 2490 Boulevard of the Generals, an office property located in West Norriton, Pennsylvania containing 20,600 net rentable square feet, for a sales price of $1.5 million.
On September 7, 2007, the Company sold seven land parcels located in the Iron Run Business Park in Lehigh County, Pennsylvania containing an aggregate 51.5 acres of land, for an aggregate sales price of $6.6 million.
On July 19, 2007, the Company acquired the United States Post Office building, an office property located in Philadelphia, Pennsylvania containing 862,692 net rentable square feet, for an aggregate purchase price of $28.0 million. The Company intends to redevelop the building into office space for the Internal Revenue Service (“IRS”). As part of this acquisition, the Company also acquired a 90 year ground lease interest in an adjacent parcel of ground of approximately 2.54 acres, commonly referred to as the “postal annex”. The

F - 16


Company is currently demolishing the existing structure located on the postal annex and intends to rebuild a parking facility containing approximately 733,000 square feet that will primarily be used by the IRS employees upon their move into the planned office space at the Post Office building. The remaining postal annex ground leased parcels can also accommodate additional office, retail, hotel and residential development and the Company is currently in the planning stage with respect to these parcels and is seeking specific zoning authorization related thereto.
On July 19, 2007, the Company acquired five office properties containing 508,607 net rentable square feet and a 4.9 acre land parcel in the Boulders office park in Richmond, Virginia for an aggregate purchase price of $96.3 million. The Company funded $36.6 million of the purchase price using the remaining proceeds from the sale of the 10 office properties located in Reading and Harrisburg, Pennsylvania in March 2007.
On May 10, 2007, the Company acquired Lake Merritt Tower, an office property located in Oakland, California containing 204,278 net rentable square feet for an aggregate purchase price of $72.0 million. A portion of the proceeds from the sale of the 10 office properties located in Reading and Harrisburg, Pennsylvania in March 2007 was used to fully fund this purchase.
On April 30, 2007, the Company sold Cityplace Center, an office property located in Dallas, Texas containing 1,295,832 net rentable square feet, for a sales price of $115.0 million.
On March 30, 2007, the Company sold 10 office properties located in Reading and Harrisburg, Pennsylvania containing 940,486 net rentable square feet, for an aggregate sales price of $112.0 million. The Company structured this transaction to qualify as a like-kind exchange under Section 1031 of the Internal Revenue Code and the cash from the sale was held by a qualified intermediary for purposes of accomplishing the like-kind exchange as noted in the above transactions.
On March 30, 2007, the Company sold 1007 Laurel Oak, an office property located in Voorhees, New Jersey containing 78,205 net rentable square feet, for a sales price of $7.0 million.
On March 1, 2007, the Company acquired the remaining 49% interest in a consolidated real estate venture previously owned by Stichting Pensioenfonds ABP containing ten office properties for a purchase price of $63.7 million. The Company owned a 51% interest in this real estate venture through the acquisition of Prentiss in January 5, 2006 and had already consolidated this venture. This purchase was accounted for as a step acquisition and the difference between the purchase price of the minority interest and the carrying value of the pro rata share of the assets of the real estate venture was allocated to the real estate venture’s assets and liabilities based on their relative fair value.
On January 31, 2007, the Company sold George Kachel Farmhouse, an office property located in Reading, Pennsylvania containing 1,664 net rentable square feet, for a sales price of $0.2 million.
On January 19, 2007, the Company sold four office properties located in Dallas, Texas containing 1,091,186 net rentable square feet and a 4.7 acre land parcel, for an aggregate sales price of $107.1 million.
On January 18, 2007, the Company sold Norriton Office Center, an office property located in East Norriton, Pennsylvania containing 73,394 net rentable square feet, for a sales price of $7.8 million.
2006
Prentiss Acquisition
On January 5, 2006, the Company acquired Prentiss pursuant to the Merger Agreement that the Company entered into with Prentiss on October 3, 2005. In conjunction with the Company’s acquisition of Prentiss, designees of The Prudential Insurance Company of America (“Prudential”) acquired certain of Prentiss’ properties that contain an aggregate of approximately 4.32 million net rentable square feet for a total consideration of approximately $747.7 million. Through its acquisition of Prentiss (and after giving effect to the Prudential acquisition of certain of Prentiss’ properties), the Company acquired a portfolio of 79

F - 17


office properties (including 13 properties that are owned by consolidated Real Estate Ventures and 7 properties that are owned by an unconsolidated Real Estate Venture) that contain an aggregate of 14.0

F - 15


million net rentable square feet. The results of the operations of Prentiss have been included in the Company’s condensed consolidated financial statements since January 5, 2006.
The Company funded the approximately $1.05 billion cash portion of the merger consideration, related transaction costs and prepayments of approximately $543.3 million in Prentiss mortgage debt at the closing of the merger through (i) a $750 million unsecured term loan that maturesmatured on January 4, 2007; (ii) approximately $676.5 million of cash from Prudential’s acquisition of certain of the Prentiss properties; and (iii) approximately $195.0 million through borrowing under a revolving credit facility.
The following table summarizes the fair value of the assets acquired and liabilities assumed at the date of acquisition (in thousands):
     
  At January 5, 2006 
Real estate investments
    
Land — operating $282,584 
Building and improvements  1,942,728 
Tenant improvements  120,610 
Construction in progress and land inventory  57,329 
    
Total real estate investments acquired  2,403,251 
Rent receivables
  6,031 
Other assets acquired:
    
Intangible assets:    
In-place leases  187,907 
Relationship values  98,382 
Above-market leases  26,352 
    
Total intangible assets acquired  312,641 
Investment in real estate ventures  66,921 
Investment in marketable securities  193,089 
Other assets  8,868 
    
Total other assets  581,519 
    
Total assets acquired
  2,990,801 
     
Liabilities assumed:
    
Mortgage notes payable  532,607 
Unsecured notes  78,610 
Secured note payable  186,116 
Security deposits and deferred rent  6,475 
Other liabilities:    
Below-market leases  78,911 
Other liabilities  43,995 
    
Total other liabilities assumed  122,906 
Total liabilities assumed  926,714 
Minority interest  104,658 
    
Net assets acquired
 $1,959,429 
    
In the acquisition of Prentiss, each then outstanding Prentiss common share was converted into the right to receive 0.69 of a Brandywine common share and $21.50 in cash (the “Per Share Merger Consideration”) except that 497,884 Prentiss common shares held in the Prentiss Deferred Compensation Plan converted solely into 720,737 Brandywine common shares. In addition, each then outstanding unit (each, a “Prentiss OP Unit”) of limited partnership interest in the Prentiss operating partnership subsidiary was, at the option of the holder, converted into Prentiss Common Shares with the right to receive the Per Share Merger Consideration or 1.3799 Class A Units of the Operating Partnership (“Brandywine Class A Units”). Accordingly, based on 49,375,723 Prentiss common shares outstanding and 139,000 Prentiss OP Units electing to receive merger consideration at closing of the acquisition, the Company issued 34,541,946

F - 18


Brandywine common shares and paid an aggregate of approximately $1.05 billion in cash to the accounts

F - 16


of the former Prentiss shareholders. Based on 1,572,612 Prentiss OP Units outstanding at closing of the acquisition that did not elect to receive merger consideration, the Operating Partnership issued 2,170,047 Brandywine Class A Units. In addition, options issued by Prentiss that were exercisable for an aggregate of 342,662 Prentiss common shares were converted into options exercisable for an aggregate of 496,037 Brandywine common shares at a weighted average exercise price of $22.00 per share. Through its acquisition of Prentiss the Company also assumed approximately $611.2 million in aggregate principal amount of Prentiss debt.
Each Brandywine Class A Unit that was issued in the merger is subject to redemption at the option of the holder. The Operating Partnership may, at its option, satisfy the redemption either for an amount, per unit, of cash equal to the then market price of one Brandywine common share (based on the prior ten-day trading average) or for one Brandywine common share.
For purposes of computing the total purchase price reflected in the financial statements, the common shares, operating units, restricted shares and options that were issued in the Prentiss transaction were valued based on the average trading price per Brandywine common share of $29.54. The average trading price was based on the average of the high and low trading prices for each of the two trading days before, the day of and the two trading days after the merger was announced (i.e., September 29, September 30, October 3, October 4 and October 5).
The Company considered the provisions of FIN 47 for these acquisitions and, where necessary, recorded a conditional asset retirement obligation as part of the purchase price. The aggregate asset retirement obligation recorded in connection with the Prentiss acquisition was approximately $2.7 million.
Pro forma information relating to the acquisition of Prentiss is presented below as if Prentiss was acquired and the related financing transactions occurred on January 1, 2006 and 2005. These pro forma results are not necessarily indicative of the results which actually would have occurred if the acquisition had occurred on the first day of the periods presented, nor does the pro forma financial information purport to represent the results of operations for future periods (in thousands, except per share amounts):
                
 December 31,  December 31, 
 2006 2005  2006 2005 
 (unaudited)  (unaudited) 
Pro forma revenue $665,205 $644,273  $633,689 $626,834 
  
Pro forma loss from continuing operations  (13,682)  (19,637)  (18,379)  (25,072)
  
Pro forma income (loss) allocated to common shares 2,839  (23,041)
Pro forma loss allocated to common shares 2,840  (23,075)
  
Earnings per common share from continuing operations  
Basic — as reported $(0.25) $0.54  $(0.30) $0.44 
          
Basic — as pro forma $(0.24) $(0.31) $(0.29) $(0.37)
     
     
Diluted — as reported $(0.24) $0.54  $(0.30) $0.44 
       
Diluted — as pro forma $(0.24) $(0.31) $(0.29) $(0.37)
          
  
Earnings per common share  
Basic — as reported $0.03 $0.62  $0.03 $0.62 
          
Basic — as pro forma $0.03 $(0.26) $0.03 $(0.26)
          
Diluted — as reported $0.03 $0.62  $0.03 $0.62 
          
Diluted — as pro forma $0.03 $(0.26) $0.03 $(0.26)
          
Subsequent to its acquisition of Prentiss and the related sale of certain properties to Prudential, the Company sold seventeen of the acquired properties that contain an aggregate of 2.9 million net rentable square feet and one parcel of land containing 10.9 acres.

F - 1719


Other 2006 Acquisitions and Dispositions
In addition to the acquisition and disposition activity related to Prentiss, during 2006, the Company also acquired fivedid the following:
On December 18, 2006, the Company sold 105/140 Terry Drive, an office propertiesproperty located in Newtown, Pennsylvania containing 839,704128,666 net rentable square feet, for a sales price of $16.2 million.
On December 1, 2006, the Company sold a parcel of land located in Newtown, Pennsylvania containing 59.0 acres, for a sales price of $19.0 million.
On November 16, 2006, the Company acquired 2251 Corporate Park Drive, an office property located in Herndon, Virginia containing 158,016 net rentable square feet, for a purchase price of $59.0 million.
On November 15, 2006, the Company sold 5 and 93.4 acres6 Cherry Hill Executive Campus, two office properties located in Cherry Hill, New Jersey containing an aggregate of developable land167,017 net rentable square feet, for an aggregate sales price of $17.6 million.
On August 28, 2006, the Company sold 111 Presidential Boulevard, an office property located in Bala Cynwyd, Pennsylvania containing 172,894 net rentable square feet, for a sales price of $34.9 million.
On August 21, 2006, the Company acquired 2340 and 2355 Dulles Corner Boulevard, two office properties located in Herndon, Virginia containing an aggregate of 443,581 net rentable square feet, for an aggregate purchase price of $245.1$133.2 million. In addition to sales of assets acquired in the Prentiss merger,
On July 12, 2006, the Company sold six110 Summit Drive, an office propertiesproperty located in Exton, Pennsylvania containing 512,23743,660 net rentable square feet, and three parcelsfor a sales price of $3.7 million.
On June 27, 2006, the Company acquired a parcel of land located in Goochland County, Virginia containing 65.823.2 acres, for a purchase price of $4.6 million.
On June 21, 2006, the Company sold a parcel of land located in Westampton, New Jersey containing 5.5 acres, for a sales price of $0.4 million.
On April 21, 2006, the Company acquired a parcel of land located in Newtown, Pennsylvania containing 5.5 acres, for a purchase price of $1.9 million.
On April 20, 2006, the Company sold a parcel of land located in Radnor, Pennsylvania containing 1.3 acres, for a sales price of $4.5 million.
On April 17, 2006, the Company acquired a parcel of land located in Mount Laurel, New Jersey containing 47.9 acres, for a purchase price of $6.7 million.
On April 4, 2006, the Company acquired One Paragon Place, an aggregate $96.2 million, realizingoffice property located in Richmond, Virginia containing 145,127 net gains totaling $31.5rentable square feet, for a purchase price of $24.0 million.
On February 1, 2006, the Company acquired 100 Lenox Drive, an office property located in Lawrenceville, New Jersey containing 92,980 net rentable square feet, for a purchase price of $10.2 million.
2005
During 2005, the Company acquired one industrial property containing 385,884 net rentable square feet, two office properties containing 283,511 net rentable square feet and 36.4 acres of developable land for an aggregate purchase price of $94.5 million. The Company sold the industrial property acquired during 2005 containing 385,884 net rentable square feet and three parcels of land containing 18.0 acres for an aggregate $30.2 million, realizing net gains totaling $6.8 million.
2004
During 2004, the Company acquired one office property in Marlton, New Jersey, totaling 170,000 square feet, and one land parcel totaling 58.4 acres for aggregate consideration of $22.9 million.
On September 21, 2004, the Operating Partnership completed the acquisition of 100% of the partnership interests in The Rubenstein Company, L.P. (“TRC”). Through the acquisition, the Operating Partnership acquired 14 office properties (the “TRC Properties”) located in Pennsylvania and Delaware that contain approximately 3.5 million net rentable square feet. The results of TRC’s operations have been included in the condensed consolidated financial statements since that date.
The aggregate consideration for the TRC Properties was $631.3 million including $29.3 million of closing costs, debt prepayment penalties and debt premiums that are included in the basis of the assets acquired. The consideration was paid with $540.4 million of cash, $79.3 million of debt assumed, $1.6 million of other liabilities assumed, and 343,006 Class A Units valued at $10.0 million. The value of the debt assumed was based on prevailing market rates at the time of acquisition. The value of the Class A Units was based on the average trading price of the Company’s common shares.

F - 1820


The following table summarizes the fair value of the assets acquired and liabilities assumed at the date of acquisition (in thousands):
     
  At September 21, 
  2004 
Real estate investments
    
Land $105,302 
Building and improvements  434,795 
Tenant improvements  20,322 
    
Total real estate investments acquired  560,419 
     
Rent receivables
  5,537 
Other assets acquired:
    
Intangible assets:    
In-Place leases  49,455 
Relationship values  35,548 
Above-market leases  13,240 
    
Total intangible assets acquired  98,243 
Other assets  6,292 
    
Total Other assets  104,535 
    
Total assets acquired
  670,491 
     
Liabilities assumed:
    
Mortgage notes payable  79,330 
Security deposits and deferred rent  618 
Other liabilities:    
Below-market leases  39,204 
Other liabilities  943 
    
Total other liabilities assumed  40,147 
    
Total liabilities assumed  120,095 
    
Net assets acquired
 $550,396 
    
The net assets acquired above do not include any amounts potentially due to the sellers as contingent consideration as part of the transaction. The Operating Partnership has agreed to issue the sellers up to a maximum of $9.7 million of additional Class A Units if certain of the TRC Properties achieve at least 95% occupancy prior to September 21, 2007. The maximum number of Units that we are obligated to issue declines monthly and, as of December 31, 2006, the maximum balance payable under this arrangement was $1.8 million, with no amount currently due.
At the closing of this transaction, the Operating Partnership agreed not to sell the TRC Properties in a transaction that would trigger taxable income to the contributors (i.e., sellers) for periods ranging from three to 15 years. In the event that the Operating Partnership sells any of the properties in such a transaction within the applicable restricted period, the Operating Partnership will be required to pay significant tax liabilities that would be incurred by the contributors.
The Operating Partnership financed the TRC acquisition using the net proceeds from its September 2004 Common Share offering, after repayment of the Operating Partnership’s $100.0 million unsecured term loan facility, and the net proceeds received from two unsecured term loans.
During 2004, the Company sold two office properties containing 141,000 net rentable square feet, two industrial properties containing 184,000 net rentable square feet and three land parcels containing 29.3 acres for an aggregate of $31.4 million, realizing a net gain of $2.1 million. As part of the sale of one property, the Company provided the buyer with $4.4 million in mortgage financing.
Additionally, the Company purchased and sold a land parcel containing 93 acres in two separate transactions with unrelated third parties. The purchase and sale resulted in a net gain of approximately $1.5 million.As part of the sale, the Company provided the buyer with $4.0 million in mortgage financing. Subsequent to the sale and prior to December 31, 2004, the mortgage financing was repaid in full.
During 2004, the Company recognized a $2.5 million deferred gain from the sale of a property in 2002 that did not previously qualify for gain recognition under the full-accrual method. During 2004, the buyer of the property repaid the seller provided financing and the criteria for gain recognition under the full-accrual

F - 19


method were met. The deferred gain recognized was presented within discontinued operations consistent with the historical operating results from the property.
4.INVESTMENT IN UNCONSOLIDATED REAL ESTATE VENTURES
As of December 31, 2006, the Company2007, we had an aggregate investment of approximately $74.6$71.6 million in 1114 unconsolidated Real Estate Ventures (net of returns of investment). The Company or PrentissWe formed these ventures with unaffiliated third parties, or acquired them, to develop office properties or to acquire land in anticipation of possible development of office properties. NineTen of the Real Estate Ventures own 1544 office buildings that contain an aggregate of approximately 2.74.4 million net rentable square feet, one Real Estate Venture developed a hotel property that contains 137 rooms, and one Real Estate Venture is developing anconstructed and sold condominiums in Charlottesville, VA and two Real Estate Ventures are in the planning stages of office property locateddevelopments in Albemarle County,Conshohocken, PA and Charlottesville, VA.
The Company also has investments in three Real Estate Ventures that are variable interest entities under FIN 46R and of which the Company is the primary beneficiary, and one investment in a Real Estate Venture for which the Company serves as the general partner and the limited partner does not have substantive participating rights. These entities are consolidated by the Company.
The Company accounts for its unconsolidated interests in its Real Estate Ventures using the equity method. Unconsolidated interests range from 6%5% to 50%, subject to specified priority allocations in certain of the Real Estate Ventures.
The amounts reflected belowin the following tables (except for carrying amount and the Company’s share of equity and income) are based on the historical financial information of the individual Real Estate Ventures. One of the Real Estate Ventures, acquired in connection with the Prentiss acquisition, had a negative equity balance on a historical cost basis as a result of historical depreciation and distribution of excess financing proceeds. The Company reflected its acquisition of this Real Estate Venture interest at its relative fair value as of the date of the purchase of Prentiss. The difference between allocated cost and the underlying equity in the net assets of the investee is accounted for as if the entity were consolidated (i.e., allocated to the Company’s relative share of assets and liabilities with an adjustment to recognize equity in earnings for the appropriate additional depreciation/amortization).
The Company’s investment in Real Estate Ventures as of December 31, 20062007 and the Company’s share of the Real Estate Ventures’ income (loss) for the year ended December 31, 20062007 was as follows (in thousands):

F - 21


                        
 Company’s Share      
 of 2007 Real Estate Real Estate Current  
                         Ownership Carrying Venture Venture Interest Debt
 Percentage (1) Amount Income (Loss) Debt at 100% Rate Maturity Percentage (1) Amount Income (Loss) Debt at 100% Rate Maturity
    
Two Tower Bridge Associates  35% $2,290 $(102) $11,430  6.82% May-08  35% $2,287 $(344) $11,816  6.82% May-08
Five Tower Bridge Associates  15% 162 57 29,927  6.77% Feb-09  15% 162  29,260  6.77% Feb-09
Seven Tower Bridge Associates  10% 299    N/A N/A 
Eight Tower Bridge Associates  5.5% 1,184  (175) 41,830  7.68% Feb-12  5.5%  (198)  68,464  7.68% Feb-12
1000 Chesterbrook Boulevard  50% 2,608 660 26,791  6.88% Nov-11  50% 2,333 669 26,410  6.88% Nov-11
PJP Building Two, LC  30% 143 107 5,282  6.12% Nov-23  30% 177 124 5,107  6.12% Nov-23
PJP Building Three, LC  25% 30 76  N/A N/A   25%  (26)   N/A N/A 
PJP Building Five, LC  25% 169 59 6,503  6.47% Aug-19  25% 148 54 6,380  6.47% Aug-19
PJP Building Six, LC  25% 75  4,597  7.08%  (3)  25% 96 21 8,033  6.35% Jun-09
PJP Building Seven, LC  25% 75  1,296 6.35% Oct-10
Macquarie BDN Christina LLC  20% 3,351 927 74,500  4.62% Jan-09  20% 2,854 1,228 74,500  4.62% Jan-09
Broadmoor Austin Associates  50% 63,793 446 117,249  5.79% Apr-11  50% 62,775 680 109,020  5.79% Apr-11
Residence Inn Tower Bridge  50% 769 110 14,480  5.63% Jan-16  50% 616 472 14,480  5.63% Feb-16
Invesco, L.P. (2)  35%    N/A N/A 
G&I Interchange Office LLC (DRA) (2)G&I Interchange Office LLC (DRA) (2) 20%   184,000  5.78% Jan-15
Invesco, L.P. (3)  35%  4,051  N/A N/A   
      
 $74,574 $2,165 $332,589  $71,598 $6,955 $538,766 
      
 
(1) Ownership percentage represents the Company’s entitlement to residual distributions after payments of priority returns, where applicable.
 
(2) See Note 3 — Real Estate Investments for description of formation of the Venture. The Company retained a 20% interest and received distributions from financing in excess of its basis. The Company has no commitment to fund and no expectation of operating losses, accordingly, the Company’s carrying value has not been reduced below zero.
(3)The Company’s interest consists solely of a residual profits interest.
(3)Property This distribution represents the Company’s final distribution from the Venture and, therefore, it is under development as of December 31, 2006, with an expected completion dateno longer included in the first quarter of 2007, at which time the outstanding balance is expected to be converted to permanent financing.our total real estate venture count.
The following is a summary of the financial position of the unconsolidated Real Estate Ventures in which the Company had investment interests as of December 31, 20062007 and 20052006 (in thousands):

F - 20


                
 December 31, December 31,
 2006 2005 2007 2006
Net property $365,168 $286,601  $630,327 $365,168 
Other assets 52,935 32,291  63,458 52,935 
Other Liabilities 28,764 24,855  34,149 28,764 
Debt 332,589 205,018  538,766 332,589 
Equity 56,888 88,995  120,870 56,888 
Company’s share of equity (Company basis) 74,574 13,331  71,598 74,574 
The following is a summary of results of operations of the unconsolidated Real Estate Ventures in which the Company had interests as of December 31, 2007, 2006 2005 and 20042005 (in thousands):
                        
 Year ended December 31, Year ended December 31,
 2006 2005 2004 2007 2006 2005
Revenue $70,381 $59,346 $46,906  $75,541 $70,381 $59,346 
Operating expenses 26,878 29,387 19,395  25,724 26,878 29,387 
Interest expense, net 21,711 12,324 11,843  21,442 21,711 12,324 
Depreciation and amortization 10,808 9,359 9,514  15,526 17,808 9,359 
Net income 12,711 8,276 6,154  12,849 5,176 8,276 
Company’s share of income (Company basis) 2,165 3,172 2,023  6,955 2,165 3,172 
As of December 31, 2006,2007, the aggregate principal payments of non-recourse debt payable to third-parties is as follows (in thousands):

F - 22


        
2007 $28,166 
2008 20,592  $16,653 
2009 38,109  121,684 
2010 9,336  11,105 
2011 110,440  106,505 
2012 and thereafter 125,946 
2012 69,280 
Thereafter 213,539 
      
 $332,589  $538,766 
      
As of December 31, 2006,2007, the Company had guaranteed repayment of approximately $0.6$0.3 million of loans on behalf of certain Real Estate Ventures. The Company also provides customary environmental indemnities in connection with construction and permanent financing both for its own account and on behalf of its Real Estate Ventures. For certain of the Real Estate Ventures with construction projects, the Company’s expectation is that it will be required to fund approximately $10.6 million of the construction costs through capital calls.
5.DEFERRED COSTS
As of December 31, 20062007 and 2005,2006, the Company’s deferred costs were comprised of the following (in thousands):
                        
 December 31, 2005  December 31, 2007 
 Accumulated Deferred Costs,  Accumulated Deferred Costs, 
 Total Cost Amortization net  Total Cost Amortization net 
Leasing Costs $83,629 $(28,278) $55,351  $99,077 $(31,259) $67,818 
Financing Costs 24,648  (6,291) 18,357  27,597  (8,292) 19,305 
              
Total $108,277 $(34,569) $73,708  $126,674 $(39,551) $87,123 
              
                        
 December 31, 2005  December 31, 2006 
 Accumulated Deferred Costs,  Accumulated Deferred Costs, 
 Total Cost Amortization net  Total Cost Amortization net 
Leasing Costs $52,476 $(23,116) $29,360  $83,629 $(28,278) $55,351 
Financing Costs 9,793  (1,551) 8,242  24,648  (6,291) 18,357 
              
Total $62,269 $(24,667) $37,602  $108,277 $(34,569) $73,708 
              

F - 21


During 2007, 2006 2005 and 2004,2005, the Company capitalized internal direct leasing costs of $8.2 million, $8.3 million $4.7 million and $4.0$4.7 million, respectively, in accordance with SFAS No. 91 and related guidance.
6.INTANGIBLE ASSETS/ASSETS AND LIABILITIES
As of December 31, 20062007 and 2005,2006, the Company’s intangible assets/liabilities were comprised of the following (in thousands):

F - 23


            
             December 31, 2007 
 Accumulated Deferred Costs,  Accumulated Deferred Costs, 
 Total Cost Amortization net  Total Cost Amortization net 
In-place lease value $207,513 $(52,293) $155,220  $180,456 $(65,742) $114,714 
Tenant relationship value 124,605  (19,572) 105,033  121,094  (32,895) 88,199 
Above market leases acquired 32,667  (11,669) 20,998  29,337  (14,101) 15,236 
              
Total $364,785 $(83,534) $281,251  $330,887 $(112,738) $218,149 
              
  
Below market leases acquired $118,536 $(26,009) $92,527  $103,825 $(36,544) $67,281 
              
            
 December 31, 2005             
   Accumulated    December 31, 2006 
 Total Cost Amortization Deferred Costs, net  Accumulated Deferred Costs, 
    Total Cost Amortization net 
In-place lease value $47,965 $(12,575) $35,390  $207,513 $(52,293) $155,220 
Tenant relationship value 37,845  (5,606) 32,239  124,605  (19,572) 105,033 
Above market leases acquired 14,404  (3,936) 10,468  32,667  (11,669) 20,998 
              
Total $100,214 $(22,117) $78,097  $364,785 $(83,534) $281,251 
              
  
Below market leases acquired $41,635 $(6,931) $34,704  $118,536 $(26,009) $92,527 
              
For the yearyears ended December 31, 2007, 2006, 2005, and 20042005 the Company wrote-off $4.1 million, $1.2 million, $1.1 million, and $0.2$1.1 million, respectively of intangible assets as a result of tenant move-outs prior to the end of the associated lease terms. TheDuring 2007, the Company wrote off approximately $0.4 and approximately $0.1 million of intangible liabilities as a result of tenant move-outs in each of the years ending December 31, 2006, 2005, and 2004.2005.
As of December 31, 2006,2007, the Company’s annual amortization for its intangible assets/liabilities are as follows (in thousands, assumes no early terminations):
                
 Assets Liabilities  Assets Liabilities 
2007 $56,795 $19,735 
2008 46,827 15,039  $48,725 $14,904 
2009 41,312 13,013  42,377 11,984 
2010 34,470 10,513  35,344 9,567 
2011 27,584 8,725  27,358 7,841 
2012 21,067 6,899 
Thereafter 74,263 25,502  43,278 16,086 
          
Total $281,251 $92,527  $218,149 $67,281 
          

F - 22


7.MORTGAGE NOTES PAYABLEDEBT OBLIGATIONS
The following table sets forth information regarding the Company’s mortgage indebtedness outstanding at December 31, 20062007 and 20052006 (in thousands):

F - 24


                 
          Effective    
  December 31,  December 31,  Interest Rate  Maturity 
Property / Location 2006  2005  @ 12/31/06  Date 
111 Arrandale Blvd $  $1,043     Aug-06
429 Creamery Way     2,927     Sep-06
Interstate Center  552   766   6.19%(b) Mar-07
440 & 442 Creamery Way  5,421   5,581   8.55% Jul-07
Norriton Office Center     5,191   8.50% Oct-07
481 John Young Way  2,294   2,360   8.40% Nov-07
400 Commerce Drive  11,797   11,989   7.12% Jun-08
Two Logan Square  71,348   72,468   5.78%(a) Jul-09
The Bluffs  10,700      6.00%(a) Jul-09
Pacific Ridge  14,500      6.00%(a) Aug-09
Pacific View/Camino  26,000      6.00%(a) Aug-09
Computer Associates Building  31,000      6.00%(a) Aug-09
200 Commerce Drive  5,841   5,911   7.12%(a) Jan-10
Presidents Plaza  30,900      6.00%(a) May-10
1333 Broadway  24,418      5.18%(a) May-10
The Ordway  46,199      7.95%(a) Aug-10
World Savings Center  27,524      7.91%(a) Nov-10
Plymouth Meeting Exec.  44,103   44,687   7.00%(a) Dec-10
Four Tower Bridge  10,626   10,763   6.62% Feb-11
Arboretum I, II, III & V  22,750   23,238   7.59% Jul-11
Midlantic Drive/Lenox Drive/DCC I  62,678   63,803   8.05% Oct-11
Research Office Center  42,205      7.64%(a) Oct-11
Concord Airport Plaza  38,461      7.20%(a) Jan-12
Six Tower Bridge  14,744   15,083   7.79% Aug-12
Newtown Square/Berwyn Park/Libertyview  63,231   64,429   7.25% May-13
Coppell Associates  3,737      6.89% Dec-13
Southpoint III  4,949   5,431   7.75% Apr-14
Tysons Corner  100,000      4.84%(a) Aug-15
Coppell Associates  16,600      5.75% Mar-16
Grande A  59,513   61,092   7.48% Jul-27
Grande A     11,456     Jul-27
Grande A     1,551     Jul-27
Grande B  77,535   79,036   7.48% Jul-27
               
Principal balance outstanding  869,626   488,805         
Plus: unamortized fixed-rate debt premiums  14,294   5,972         
               
Total mortgage indebtedness $883,920  $494,777         
               
MORTGAGE DEBT:
                     
           Effective        
  December 31,  December 31,   Interest      Maturity 
Property / Location 2007  2006   Rate      Date 
Interstate Center $  $552   6.19%      Mar-07
The Bluffs     10,700   6.00%(a)    Apr-07
Pacific Ridge     14,500   6.00%(a)    Apr-07
Pacific View/Camino     26,000   6.00%(a)     Apr-07
Computer Associates Building     31,000   6.00%(a)     Apr-07
Presidents Plaza     30,900   6.00%(a)     Apr-07
440 & 442 Creamery Way     5,421   8.55%      May-07
Grande A     59,513   7.48%      Jul-07
Grande B     77,535   7.48%      Jul-07
481 John Young Way     2,294   8.40%      Dec-07
400 Commerce Drive  11,575   11,797   7.12%      Jun-08
Two Logan Square  70,124   71,348   5.78%(a)     Jul-09
200 Commerce Drive  5,765   5,841   7.12%(a)     Jan-10
1333 Broadway  23,997   24,418   5.18%(a)     May-10
The Ordway  45,509   46,199   7.95%(a)     Aug-10
World Savings Center  27,142   27,524   7.91%(a)     Nov-10
Plymouth Meeting Exec.  43,470   44,103   7.00%(a)     Dec-10
Four Tower Bridge  10,518   10,626   6.62%      Feb-11
Arboretum I, II, III & V  22,225   22,750   7.59%      Jul-11
Midlantic Drive/Lenox Drive/DCC I  61,276   62,678   8.05%      Oct-11
Research Office Center  41,527   42,205   7.64%(a)     Oct-11
Concord Airport Plaza  37,570   38,461   7.20%(a)     Jan-12
Six Tower Bridge  14,472   14,744   7.79%      Aug-12
Newtown Square/Berwyn Park/Libertyview  62,125   63,231   7.25%      May-13
Coppell Associates  3,512   3,737   6.89%      Dec-13
Southpoint III  4,426   4,949   7.75%      Apr-14
Tysons Corner  100,000   100,000   4.84%(a)     Aug-15
Coppell Associates  16,600   16,600   5.75%      Feb-16
                   
     
Principal balance outstanding  601,833   869,626             
     
Plus: unamortized fixed-rate debt premiums, net  10,065   14,294             
                   
Total mortgage indebtedness $611,898  $883,920             
                   
                     
UNSECURED DEBT:
                    
Sweep Agreement Line  10,727     Libor + 0.75%    Mar-08
Private Placement Notes due 2008  113,000   113,000   4.34%      Dec-08
2009 Three Year Notes     300,000  Libor + 0.45%    Apr-09
2009 Five Year Notes  275,000   275,000   4.62%      Nov-09
Bank Term Loan  150,000     Libor + 0.80%    Oct-10
2010 Five Year Notes  300,000   300,000   5.61%      Dec-10
Line-of-Credit  120,000   60,000  Libor + 0.725%    Jun-11
3.875% Exchangeable Notes  345,000   345,000   3.87%     Oct-11
2012 Six Year Notes  300,000   300,000   5.77%     Apr-12
2014 Ten Year Notes  250,000   250,000   5.53%     Nov-14
2016 Ten Year Notes  250,000   250,000   5.95%     Apr-16
2017 Ten Year Notes  300,000      5.72%     May-17
Indenture IA (Preferred Trust I)  27,062   27,062  Libor + 1.25%    Mar-35
Indenture IB (Preferred Trust I)  25,774   25,774  Libor + 1.25%    Apr-35
Indenture II (Preferred Trust II)  25,774   25,774  Libor + 1.25%    Jul-35
                   
Principal balance outstanding  2,492,337   2,271,610             
Plus: unamortized fixed-rate debt discounts, net  (3,266)  (3,300)            
                   
Total unsecured indebtedness $2,489,071  $2,268,310             
                   
Total Debt Obligations $3,100,969  $3,152,230             
                   
 
(a) Loans were assumed upon acquisition of the related property. Interest rates presented above reflect the market rate at the time of acquisition.
(b)For loans that bear interest at a variable rate, the rates in effect at December 31, 2006 have been presented.
The mortgage note payable balance of $5.1 million for Norriton Office Center as of December 31, 2006, not included in the table above, is included in Mortgage notes payable and other liabilities held for sale on the balance sheet. This property was held for sale at December 31, 2006 and sold in January 2007.

F - 25


During 2007, 2006 2005 and 2004,2005, the Company’s weighted-average interest rate on its mortgage notes payable was 6.57%6.74%, 7.17%6.57% and 6.80%7.17%, respectively. As of December 31, 20062007 and 2005,2006, the net carrying value of the Company’s Properties that are encumbered by mortgage indebtedness was $1,003.5 million and $1,498.9 million, respectively.
On April 30, 2007, the Operating Partnership completed an underwritten public offering of $300 million aggregate principal amount of 5.70% unsecured notes due 2017 (the “2017 Notes”). Brandywine Realty Trust guaranteed the payment of principal and $779.2 million, respectively.interest on the 2017 Notes. The Company used proceeds from these notes to reduce borrowings under the Company’s revolving credit facility.

F - 23


As of December 31,On November 29, 2006, the Company’sCompany irrevocably called for redemption of the $300 million aggregate principal payments, excluding paymentsamount of unsecured floating rate notes due 2009 (the “2009 Notes”) and repaid these notes on one mortgage note heldJanuary 2, 2007 in accordance with the November call using proceeds from our Credit Facility. As a result of the early repayment of these notes, the Company incurred accelerated amortization of $1.4 million in associated deferred financing costs in the fourth quarter 2006.
On October 4, 2006, the Operating Partnership sold $300.0 million aggregate principal amount of unsecured 3.875% Exchangeable Guaranteed Notes due 2026 in reliance upon an exemption from registration rights under Rule 144A under the Securities Act of 1933 and sold an additional $45 million of 3.875% Exchangeable Guaranteed Notes due 2026 on October 16, 2006 to cover over-allotments. The Operating Partnership has registered the resale of the exchangeable notes. At certain times and upon certain events, the notes are exchangeable for sale at December 31, 2006, are as follows (in thousands):
     
2007 $20,643 
2008  25,228 
2009  168,237 
2010  192,601 
2011  140,128 
Thereafter  337,083 
    
Total mortgage indebtedness $883,920 
    
8.UNSECURED NOTES
The following table sets forth information regardingcash up to their principal amount and with respect to the remainder, if any, of the exchange value in excess of such principal amount, cash or the Company’s unsecuredcommon shares. The initial exchange rate is 25.4065 shares per $1,000 principal amount of notes (which is equivalent to an initial exchange price of $39.36 per share). The Operating Partnership may not redeem the notes prior to October 20, 2011 (except to preserve the Company’s status as a REIT for U.S. federal income tax purposes), but we may redeem the notes at any time thereafter, in whole or in part, at a redemption price equal to the principal amount of the notes to be redeemed plus accrued and unpaid interest. In addition, on October 20, 2011, October 15, 2016 and October 15, 2021 as well as upon the occurrence of certain change in control transactions prior to October 20, 2011, holders of notes may require the Company to repurchase all or a portion of the notes at a purchase price equal to the principal amount plus accrued and unpaid interest. The Operating Partnership used net proceeds from the notes to repurchase approximately $60.0 million of the Company’s common stock at a price of $32.80 per share and for general corporate purposes, including the repayment of outstanding at December 31, 2006 and December 31, 2005 (in thousands):borrowings under the Credit Facility.
                 
  December 31,  December 31,  Stated  Effective 
Year of Maturity 2006  2005  Interest Rate  Interest Rate 
2008  113,000   113,000   4.34%  4.34%(a)
2009  300,000     Libor + 0.45%  5.78%(a)
2009  275,000   275,000   4.50%  4.62%(a)
2010  300,000   300,000   5.63%  5.61%(a)
2011  345,000      3.88%  3.88%
2012  300,000      5.75%  5.77%(a)
2014  250,000   250,000   5.40%  5.53%(a)
2016  250,000      6.00%  5.95%(a)
2035  27,062     Libor + 1.25%  6.58%
2035  25,774     Libor + 1.25%  6.58%
2035  25,774     Libor + 1.25%  6.58%
               
Total face amount $2,211,610  $938,000         
Less: unamortized discounts  (3,300)  (1,393)        
               
Total unsecured notes $2,208,310  $936,607         
               
(a)Rates include the effect of amortization of discounts and costs related to settlement of treasury lock agreements.
On March 28, 2006, the Operating Partnership completed an underwritten public offering of (1) $300,000,000 aggregate principal amount of unsecured floating rate notes duethe 2009 (the “2009 Notes”),Notes, (2) $300,000,000$300 million aggregate principal amount of 5.75% unsecured notes due 2012 (the “2012 Notes”) and (3) $250,000,000$250 million aggregate principal amount of 6.00% unsecured notes due 2016 (the “2016 Notes”). Brandywine Realty Trust guaranteed the payment of principal and interest on the 2009 Notes, the 2012 Notes and the 2016 Notes. The Company used proceeds from these notes to repay a term loan obtained to finance a portion of the consideration paid in the Prentiss merger and to reduce borrowings under the Company’s revolving credit facility.
In March 2006, in anticipation of the offering of the 2009 Notes, the 2012 Notes and the 2016 Notes, the Company entered into forward starting swaps. The forward starting swaps were designated as cash flow hedges of interest rate risk and qualified for hedge accounting. The forward starting swaps were for notional amounts totaling $200.0 million at an all-in-rate of 5.2%. Two of the forward starting swaps had a six year maturity date and one had a ten year maturity date. The forward starting swaps were settled in March 2006 upon the completion of the offering of the 2009, 2012, and 2016 Notes at a total benefit of approximately $3.3 million. The benefit was recorded as a component of accumulated other comprehensive income in the accompanying consolidated balance sheet and is being amortized to interest expense over the term of the unsecured notes.
On October 4, 2006, the Company completed an offering of $300.0 million aggregate principal amount of 3.875% senior convertible notes due 2026 in an offering made in reliance upon an exemption from registration rights under Rule 144A under the Securities Act of 1933 and issued an additional $45 million of exchangeable notes on October 16, 2006 to cover over-allotments. At certain times and upon the occurrence of certain events, the notes are convertible into cash up to their principal amount and, with respect to the remainder, if any, of the exchange value in excess of such principal amount, cash or shares of the Company’s common shares. The initial exchange rate is 25.4065 shares per $1,000 principal amount of notes (which is equivalent to an initial exchange price of $39.36 per share). The notes may not be redeemed by the Company prior to October 20, 2011 (except to preserve the Company’s status as a REIT for U.S, federal income tax purposes), but are redeemable anytime thereafter, in whole or in part, at a

F - 24


redemption price equal to the principal amount of the notes plus any accrued and unpaid interest (including additional interest), if any. In addition, on October 20, 2011, October 15, 2016, and October 15, 2021, or upon the occurrence of certain change in control transactions prior to October 20, 2011, note holders may require the Company to repurchase all or a portion of the notes at a purchase price equal to the principal amount plus any accrued and unpaid interest on the notes. Net proceeds from the October 2006 Debt Offering were used to repurchase approximately $60.0 million of the Company’s common stock at a price of $32.80 per share and for general corporate purposes, including the repayment of outstanding borrowings under the Company’s unsecured revolving credit facility.
On November 24, 2006, the Company prepaid a secured note (the “Defeased Note”) having an outstanding balance of $180.1 million. The Defeased Note had a maturity date of February 2007 and related to a voluntary defeasance of secured debt by Prentiss in the fourth quarter of 2005 in which Prentiss exercised the right to complete a voluntary defeasance of a $180.1 million secured loan. Pursuant to the defeasance, Prentiss assigned its obligations under the Defeased Note to an unrelated successor entity together with funds to acquire U.S. Treasury Securities sufficient to provide for the payment in full of debt service (including interest and principal) on the Defeased Note from the defeasance date through the loan maturity date.
On November 29, 2006, the Company gave notice of redemption of the 2009 Notes and redeemed the 2009 Notes on January 2, 2007.
The Company’sOperating Partnership’s indenture relating to unsecured notes contains financial restrictions and requirements, including (1) a leverage ratio not to exceed 60%, (2) a secured debt leverage ratio not to exceed 40%, (3) a debt service coverage ratio of greater than 1.5 to 1.0, and (4) an unencumbered asset value of not less than 150% of unsecured debt. In addition, the note purchase agreement relating to the Operating Partnership’s $113 million principal amount of unsecured notes due 2008 contains covenants that are similar to the covenants in the indenture.
InOn October 2005,15, 2007, the Company entered into a term loan agreement (the “Term Loan Agreement”) that provides for an unsecured term loan (the “Term Loan”) in anticipationthe amount of $150.0 million . The Company used the proceeds to pay down a portion of the offeringoutstanding amount on its $600.0 million unsecured revolving credit facility. The Term Loan matures on October 18, 2010 and may be extended at the Company’s option for two, one-year periods but not beyond the maturity date of its revolving credit facility. There is no scheduled principal amortization of the 2010 Notes,Term Loan and the Operating Partnership entered into forward starting swaps. The forward starting swaps were designated as cash flow hedges of interest rate risk and qualified for hedge accounting. The forward starting swaps were for notional amounts totaling $125.0 million for an expiration of five years at an all-in-rate of 4.9%. The forward starting swaps were settledCompany may prepay borrowings in December 2005 upon the completionwhole or in part without premium or penalty. Portions of the offeringTerm Loan bear interest at a

F - 26


per annum floating rate equal to: (i) the higher of (x) the 2010 Notesprime rate or (y) the federal funds rate plus 0.50% per annum or (ii) a London interbank offered rate that is the rate at a total benefit of approximately $0.2 million.which Eurodollar deposits for one, two, three or six months are offered plus between 0.475% and 1.10% per annum (the “Libor Margin”), depending on the Company’s debt rating. The benefit was recordedTerm Loan Agreement contains financial and operating covenants. Financial covenants include minimum net worth, fixed charge coverage ratio, maximum leverage ratio, restrictions on unsecured and secured debt as a componentpercentage of accumulatedunencumbered assets and other comprehensive income in the accompanying consolidated balance sheet and is being amortized to interest expense over the term of the unsecured notes.
On December 20, 2005, thefinancial tests. Operating Partnership completed an underwritten public offering of $300 million aggregate principal amount of 5.625% unsecured notes due December 15, 2010 (the “2010 Notes”). Brandywine Realty Trust guaranteed the payment of principal and interestcovenants include limitations on the 2010 Notes
9.UNSECURED CREDIT FACILITYCompany’s ability to incur additional indebtedness, grant liens on assets, enter into affiliate transactions, and pay dividends.
The Company utilizes credit facility borrowings for general business purposes, including the acquisition, development and redevelopment of properties and the repayment of other debt. In December 2005,On June 29, 2007, the Company replacedamended its then existing credit facility with a $600.0 million unsecured revolving credit facility (the “Credit Facility”) that matures in. The amendment extended the maturity date of the Credit Facility from December 22, 2009 to June 29, 2011 (subject to an extension of one year, at the Company’s option, upon its payment of an extension fee equal to 15 basis points of the committed amount under the Credit Facility). The amendment also reduced the per annum variable interest rate on outstanding balances from Eurodollar plus 0.80% to Eurodollar plus 0.725% per annum. In addition, the amendment reduced the facility fee paid quarterly from 20 basis points to 17.5 basis points per annum. The interest rate and facility fee are subject to adjustment upon a one-year extension option.change in the Company’s unsecured debt ratings. The amendment also lowered to 7.50% from 8.50% the capitalization rate used in the calculation of several of the financial covenants; increased our swing loan availability from $50.0 million to $60.0 million; and increased the number of competitive bid loan requests available to the Company from two to four in any 30 day period. Borrowings are always available to the extent of borrowing capacity at the stated rates, however, the competitive bid feature allows banks that are part of the lender consortium under the Credit Facility generally bear interestto bid to make loans to the Company at LIBOR plus a spread over LIBOR ranging from 0.55% to 1.10% based on the Company’s unsecured senior debt rating.reduced Eurodollar rate. The Company has the option to increase the Credit Facility to $800.0 million subject to the absence of any defaults and the Company’s ability to acquire additional commitments from its existing lenders or new lenders. As of December 31, 2006,2007, the Company had $60.0$120.0 million of borrowings and $24.2$13.5 million of letters of credit outstanding under the Credit Facility, leaving $516.0$466.5 million of unused availability. TheAs of December 31, 2007 and 2006, the weighted-average interest rate on the Company’s unsecured credit facilities,Credit Facility, including the effect of interest rate hedges, was 5.93% in 2006, 4.58% in 20056.25% and 3.79% in 2004.5.93%, respectively.

F - 25


The Credit Facility requires the maintenance of ratios related to minimum net worth, debt-to-total capitalization and fixed charge coverage and includes non-financial covenants.
10.UNSECURED TERM LOANS
On March 28, 2006,In April 2007, the Company terminated, and repaid all amountsentered into a $20.0 million Sweep Agreement (the “Sweep Agreement”) to be used for cash management purposes. Borrowings under the Sweep Agreement bear interest at one-month LIBOR plus 0.75%. As of December 31, 2007 the Company had $10.7 million of borrowing outstanding under the $750 million Term LoanSweep Agreement, that it entered into on January 5, 2006 with JPMorgan Chase Bank, N.A., as Administrative Agent and Syndication Agent, J.P. Morgan Securities Inc., as Lead Arranger and Sole Bookrunner, and the lenders identified therein. The Company entered into the Term Loan Agreement in connection with its acquisition through the merger of Prentiss on January 5, 2006.
During 2004, the Company repaid all amounts outstanding under its $100 million unsecured term loan facility. The $100.0 million unsecured term loan bore interest at LIBOR plus a spread ranging from 1.05% to 1.9% per annum based on the Company’s leverage.
In connection with the TRC acquisition in September 2004, the Company obtained two term loans: a $320 million unsecured term loan due in 2007 (the “2007 Term Loan”) and a $113 million term loan due in 2008 (the “2008 Term Loan”). In October 2004, the Company repaid all amounts outstanding under its 2007 Term Loan with proceeds of the 2009 and 2014 unsecured notes issued on October 22, 2004. In December 2004, the Company repaid the 2008 Term Loan with the proceeds of the 2008 unsecured notes, which were issued by the Operating Partnership. Brandywine Realty Trust has guaranteed the payment of the principal of and interest on the 2008 unsecured notes. A former partner in TRC has also provided a guaranty of the 2008 unsecured notes (although this guaranty does not in any way limit or diminish the obligations of the Operating Partnership or obligations arising under the guarantee that Brandywine Realty Trust provided). As a result of the repayments of the 2007 and 2008 Term Loans, the Company wrote-off approximately $3.0leaving $9.3 million of unamortized deferred financing costs in 2004. These write-offs are presented as deferred financing costs within interest expense in the consolidated statement of operations. While outstanding, the 2007 and 2008 Term Loans bore interest at LIBOR plus spreads of 1.1% and 1.35%, respectively.unused availability.
As of December 31, 2006 and 2005,2007, the Company had no unsecured term loans outstanding.Company’s aggregate principal payments, are as follows (in thousands):
11.
     
2008 $146,005 
2009  354,955 
2010  600,189 
2011  597,261 
2012  351,053 
Thereafter  1,044,707 
    
Total principal payments $3,094,170 
Net unamortized premiums/discounts  6,799 
    
Outstanding indebtedness $3,100,969 
    
8.FAIR VALUE OF FINANCIAL INSTRUMENTS
The following fair value disclosure was determined by the Company using available market information and discounted cash flow analyses as of December 31, 20062007 and 2005,2006, respectively. The discount rate used in calculating fair value is the sum of the current risk free rate and the risk premium on the date of acquiring or assuming the instruments or obligations. Considerable judgment is necessary to interpret

F - 27


market data and to develop the related estimates of fair value. Accordingly, the estimates presented are not necessarily indicative of the amounts that the Company could realize upon disposition. The use of different estimation methodologies may have a material effect on the estimated fair value amounts. The Company believes that the carrying amounts reflected in the Consolidated Balance Sheets at December 31, 20062007 and 20052006 approximate the fair values for cash and cash equivalents, accounts receivable, other assets, accounts payable, accrued expenses and borrowings under variable rate debt instruments.
The following are financial instruments for which the Company estimates of fair value differ from the carrying amounts (in thousands):
                 
  December 31, 2006 December 31, 2005
  Carrying Fair Carrying Fair
  Amount Value Amount Value
Mortgage payable $888,470  $859,490  $481,006  $521,607 
Unsecured Notes payable $1,829,701  $1,826,357  $936,607  $920,470 
                 
  December 31, 2007 December 31, 2006
  Carrying Fair Carrying Fair
  Amount Value Amount Value
Mortgage payable, net of premiums $611,898  $597,287  $888,470  $859,490 
Unsecured notes payable, net of discounts $2,129,734  $1,996,475  $1,829,701  $1,826,357 

F - 26


12.9.RISK MANAGEMENT AND USE OF FINANCIAL INSTRUMENTS
Risk Management
In the normal course of its on-going business operations, the Company encounters economic risk. There are three main components of economic risk: interest rate risk, credit risk and market risk. The Company is subject to interest rate risk on its interest-bearing liabilities. Credit risk is the risk of inability or unwillingness of tenants to make contractually required payments. Market risk is the risk of declines in the value of properties due to changes in rental rates, interest rates or other market factors affecting the valuation of properties held by the Company.
Use of Derivative Financial Instruments
The Company’s use of derivative instruments is limited to the utilization of interest rate agreements or other instruments to manage interest rate risk exposures and not for speculative purposes. The principal objective of such arrangements is to minimize the risks and/or costs associated with the Company’s operating and financial structure, as well as to hedge specific transactions. The counterparties to these arrangements are major financial institutions with which the Company and its affiliates may also have other financial relationships. The Company is potentially exposed to credit loss in the event of non-performance by these counterparties. However, because of the high credit ratings of the counterparties, the Company does not anticipate that any of the counterparties will fail to meet these obligations as they come due. The Company does not hedge credit or property value market risks.
The Company entered into two interest rate swaps in January 2006 aggregating $90 million in notional amount as part of its acquisition of Prentiss. The instruments are used to hedge the risk of interest cash outflows on secured variable rate debt on properties that are owned by one of our consolidated Real Estate Ventures. One of the swaps with a notional amount of $20 million has a maturity date of February 1, 2010 and the other with a notional amount of $70 million has a maturity date of August 1, 2008.
The Company also entered into forward starting swaps in March 2006 as more fully described in Note 8.risks through derivative financial instruments.
The Company formally assesses, both at inception of the hedge and on an on-going basis, whether each derivative is highly-effective in offsetting changes in cash flows of the hedged item. If management determines that a derivative is not highly-effective as a hedge or if a derivative ceases to be a highly-effective hedge, the Company will discontinue hedge accounting prospectively.
Outstanding Derivatives
In November 2007, the Company entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap is for a notional amount of $25.0 million at a fixed rate of 3.747% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt. The hedge had a nominal fair value at December 31, 2007 that is included in other liabilities and accumulated other comprehensive income in the accompanying consolidated balance sheet.
In October 2007, the Company entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap is for a notional amount of $25.0 million at a fixed rate of 4.415% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt. The fair value of the hedge at December 31, 2007 was $(0.5) million and is included in other liabilities and accumulated other comprehensive income in the accompanying consolidated balance sheet.

F - 28


In September 2007, the Company entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap has a starting notional amount of $63.7 million increasing to a maximum amount of $155.0 million, at a fixed rate of 4.709% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt. The fair value of the hedge at December 31, 2007 was $(2.7) million and is included in other liabilities and accumulated other comprehensive income in the accompanying consolidated balance sheet.
Terminated Derivatives
In July 2007, in anticipation of an expected debt offering, the Company entered into four treasury lock agreements. The treasury lock agreements were designated as cash flow hedges on interest rate risk and qualified for hedge accounting. The treasury lock agreements have an expiration of 5 years with the following trade dates, notional amounts and all-in rates:
Trade DateNotional AmountAll-in Rate
July 10, 2007$50.0 million4.984%
July 18, 2007$50.0 million4.915%
July 20, 2007$25.0 million4.848%
July 25, 2007$25.0 million4.780%
The agreements were settled on September 21, 2007, the original termination date of each agreement, at a total cost of $3.9 million. During the fourth quarter upon completion of the DRA transaction, the Company determined it was probable that the forecasted transaction would not occur and accordingly, recorded an expense for the residual balance of $3.7 million. During the quarter ended September 30, 2007, the Company recorded the ineffective portion of these agreements, totaling $0.2 million, in the accompanying consolidated statement of operations.
In March 2007, in anticipation of the offering of 2017 Notes, the Company entered into two treasury lock agreements. The treasury lock agreements were designated as cash flow hedges on interest rate risk and qualified for hedge accounting. Each of the treasury lock agreements were for notional amounts of $75.0 million for an expiration of 10 years at all-in rates of 4.5585% and 4.498%. The agreements were settled in April 2007 upon completion of the offering of the 2017 Notes at a total benefit of $1.1 million, with nominal ineffectiveness. This benefit was recorded as a component of accumulated other comprehensive income in the accompanying consolidated balance sheet and is being amortized over the term of the 2017 Notes.
In March 2006, in anticipation of the offering of the 2009 Notes, the 2012 Notes and the 2016 Notes, the Company entered into forward starting swaps. The forward starting swaps were designated as cash flow hedges of interest rate risk and qualified for hedge accounting. The forward starting swaps were for notional amounts totaling $200.0 million at an all-in-rate of 5.2%. Two of the forward starting swaps had a nine year maturity date and one had a ten year maturity date. The forward starting swaps were settled in March 2006 upon the completion of the offering of the 2009, 2012, and 2016 Notes at a total benefit of approximately $3.3 million with nominal ineffectiveness. The benefit was recorded as a component of accumulated other comprehensive income in the accompanying consolidated balance sheet and is being amortized to interest expense over the term of the unsecured notes.
The Company entered into two interest rate swaps in January 2006 aggregating $90 million in notional amount as part of its acquisition of Prentiss. The instruments were used to hedge the risk of interest cash outflows on secured variable rate debt on properties that were included as part of the real estate venture in which the Company purchased the remaining 49% of the minority interest partner’s share in March 2007. One of the swaps with a notional amount of $20 million had a maturity date of February 1, 2010 at an all-in rate of 4.675%. The other, with a notional amount of $70 million, had a maturity date of August 1, 2008 at an all in rate of 4.675%. The agreements were settled in April 2007 in connection with the repayment of five mortgage notes, at a total benefit of $0.4 million with nominal ineffectiveness.

F - 29


Concentration of Credit Risk
Concentrations of credit risk arise when a number of tenants related to the Company’s investments or rental operations are engaged in similar business activities, or are located in the same geographic region, or have similar economic features that would cause their inability to meet contractual obligations, including those to the Company, to be similarly affected. The Company regularly monitors its tenant base to assess potential concentrations of credit risk. Management believes the current credit risk portfolio is reasonably well diversified and does not contain any unusual concentration of credit risk. No tenant accounted for 10% or more of the Company’s rents during 2007, 2006 2005 and 2004. See Note 19 for geographic segment information.2005.

F - 27


13.10.DISCONTINUED OPERATIONS
For the years ended December 31, 2007, 2006 2005 and 2004,2005, income from discontinued operations relates to 2844 properties containing approximately 4,074,6497,304,131 million net rentable square feet that the Company has sold since January 1, 2004 and two properties containing 8 buildings and one land parcel designated as held-for-sale as of December 31, 2006. The following table summarizes the balance sheet information for the two properties containing 8 buildings and one land parcel identified as held for sale at December 31, 2006 (in thousands):
     
Real Estate Investments:    
Operating Properties $110,709 
Accumulated depreciation  (6,050)
    
   104,659 
     
Other assets  21,357 
Total Assets Held for Sale $126,016 
    
     
Mortgage note payable and other liabilities $20,826 
    
2005.
The following table summarizes revenue and expense information for the 2844 properties sold since January 1, 2004 and the two properties containing 8 buildings designated as held-for-sale as of December 31, 20062005 (in thousands):
                        
 Years Ended December 31,  Years Ended December 31, 
 2006 2005 2004  2007 2006 2005 
Revenue:
  
Rents $43,410 $10,060 $8,336  $12,844 $84,064 $25,750 
Tenant reimbursements 5,314 1,010 1,120  1,531 6,967 1,503 
Termination fees  529  
Other 982 41 36  214 1,151 49 
              
Total revenue 49,706 11,111 9,492  14,589 92,711 27,302 
  
Expenses:
  
Property operating expenses 17,769 3,862 4,166  5,013 33,660 9,691 
Real estate taxes 6,145 1,316 1,441  1,644 10,921 3,140 
Depreciation & amortization 17,284 2,939 2,607  4,748 34,706 5,882 
              
Total operating expenses 41,198 8,117 8,214  11,405 79,287 18,713 
  
Operating income
 8,508 2,994 1,278  3,184 13,424 8,589 
Interest income 14 6    13 6 
Interest expense  (841)  (445)  (451)   (840)  (445)
              
 
Income from discontinued operations before gain on sale of interests in real estate and minority interest 7,681 2,555 827  3,184 12,597 8,150 
 
Net gain on sale of interests in real estate 18,486 2,196 3,136  25,743 20,243 2,196 
Minority interest — partners’ share of net gain on sale 1,757      (1,757)  
Minority interest — partners’ share of consolidated real estate venture  (2,239)      (482)  
Minority interest attributable to discontinued operations — LP units  (1,172)  (163)  (144)  (1,235)  (1,390)  (357)
              
Income from discontinued operations $24,513 $4,588 $3,819  $27,692 $29,211 $9,989 
              
Discontinued operations have not been segregated in the consolidated statements of cash flows. Therefore, amounts for certain captions will not agree with respective data in the consolidated statements of operations.
14.11.MINORITY INTEREST IN OPERATING PARTNERSHIP AND CONSOLIDATED REAL ESTATE VENTURES
Minority interest in Operating Partnership is comprised
As of Class A Units of limited partnership interest (“Class A Units”)December 31, 2007 and until their redemption in February 2004, Series B Preferred Units of limited partnership interest (“Series B Preferred Units”)2006, the aggregate book value of the Operating Partnership. The Operating Partnership issuedminority interest associated with these units in the accompanying consolidated balance sheet was $81.2 million and $89.6 million, respectively and the Company believes that the aggregate settlement value of these interests to persons that contributed assets towas approximately $68.8 million and $131.7 million, respectively. This amount is based on the Operating Partnership. The Operating Partnership is obligated to redeem, at the requestnumber of a holder, each Class A Unit for cash or one Common Share, at the option of the Company. Each Series B Preferred Unit had a stated value of $50.00 and was convertible, at the option of the holder, into Class A Units at a conversion price of $28.00. Income allocated to minority interest includes the amount of the Series B Preferred Unit distributionunits outstanding and the proclosing share price on the balance sheet date.

F - 2830


rata share of net income of the Operating Partnership allocated to the Class A Units. In February 2004, the Operating Partnership redeemed the Series B Preferred Units for an aggregate price of $93.0 million together with accrued but unpaid distributions from January 1, 2004. The Series B Preferred Units had an aggregate stated value of $97.5 million and accrued distributions at 7.25. The Company recorded a $4.5 million gain related to the redemption. The Company declared distributions of $0.8 million in 2004 to the holders of Series B Preferred Units and $2.0 million in 2006, $3.6 million in 2005 and $3.3 million in 2004 to holders of Class A Units. As of December 31, 2006 and 2005, the Company had outstanding 3,961,235 Class A Units and 1,945,267 Class A Units, respectively, held by third party investors. No Series B Preferred Units were outstanding as of December 31, 2006 and 2005.
During the year ended December 31, 2006, 424,608 Class A units were issued in connection with the acquisitionacquisitions of a property. These Class A units were subsequently redeemed for $13.5 million and this amount is included in distributions to minority interest holders on the consolidated statement of cash flows.
Consolidated Real Estate Ventures
As of December 31, 2006 and 2005, the aggregate book value of the minority interest associated with these units in the accompanying consolidated balance sheet was $89.6 million and $37.9 million, respectively and2007, the Company believesowned interests in three consolidated real estate ventures that the aggregate settlement value of these interests wasown three office properties containing approximately $131.70.4 million and $54.3 million, respectively. This amount is based on the number of units outstanding and the closing share price on the balance sheet date.
net rentable square feet. As of December 31, 2006, the Company owned interests in four consolidated real estate ventures that ownowned 15 office properties containing approximately 1.5 million net rentable square feet.
On March 1, 2007, the Company acquired the remaining 49% interest in a real estate venture previously owned by Stichting Pensioenfonds ABP containing ten office properties for a purchase price of $63.7 million. The Company owned a 51% interest in this real estate venture through the acquisition of Prentiss on January 5, 2006. Minority interest in Real Estate Ventures represents the portion of these consolidated real estate ventures not owned by the Company.
For the remaining consolidated joint ventures, the minority interest is reflected at zero carrying amount as a result of accumulated losses and distributions in excess of basis.
The minority interests associated with certain of the Real Estate Ventures, that have finite lives under the terms of the partnership agreements represent mandatorily redeemable interests as defined in SFAS 150. As of December 31, 20062007 and 2005,2006, the aggregate book value of these minority interests in the accompanying consolidated balance sheet was $0 and the Company believes that the aggregate settlement value of these interests was approximately $8.1 million. This amount is based on the estimated liquidation values of the assets and liabilities and the resulting proceeds that the Company would distribute to its Real Estate Venture partners upon dissolution, as required under the terms of the respective partnership agreements. Subsequent changes to the estimated fair values of the assets and liabilities of the consolidated Real Estate Ventures will affect the Company’s estimate of the aggregate settlement value. The partnership agreements do not limit the amount that the minority partners would be entitled to in the event of liquidation of the assets and liabilities and dissolution of the respective partnerships.
15.12.BENEFICIARIES’ EQUITY
Earnings per Share (EPS)
The following table details the number of shares and net income used to calculate basic and diluted earnings per share (in thousands, except share and per share amounts; results may not add due to rounding):

F - 2931


                                                
 For the years ended December 31,  For the years ended December 31, 
 2006 2005 2004  2007 2006 2005 
 Basic Diluted Basic Diluted Basic Diluted  Basic Diluted Basic Diluted Basic Diluted 
Income (loss) from continuing operations $(14,031) $(14,031) $38,179 $38,179 $56,483 $56,483  $28,761 $28,761 $(18,729) $(18,729) $32,778 $32,778 
Income from discontinued operations 24,513 24,513 4,588 4,588 3,819 3,819  27,692 27,692 29,211 29,211 9,989 9,989 
Income allocated to Preferred Shares  (7,992)  (7,992)  (7,992)  (7,992)  (9,720)  (9,720)  (7,992)  (7,992)  (7,992)  (7,992)  (7,992)  (7,992)
Preferred Share redemption/conversion benefit (charge)     4,500 4,500 
                          
 $2,490 $2,490 $34,775 $34,775 $55,082 $55,082  $48,461 $48,461 $2,490 $2,490 $34,775 $34,775 
                          
Weighted-average shares outstanding 89,552,301 89,552,301 55,846,268 55,846,268 47,781,789 47,781,789  87,272,148 87,272,148 89,552,301 89,552,301 55,846,268 55,846,268 
Options, warrants and unvested restricted stock  518,524  258,320  236,915   49,128  518,524  258,320 
                          
Total weighted-average shares outstanding 89,552,301 90,070,825 55,846,268 56,104,588 47,781,789 48,018,704  87,272,148 87,321,276 89,552,301 90,070,825 55,846,268 56,104,588 
                          
Earnings per Common Share:  
Continuing operations $(0.25) $(0.24) $0.54 $0.54 $1.07 $1.07  $0.24 $0.24 $(0.30) $(0.30) $0.44 $0.44 
Discontinued operations 0.27 0.27 0.08 0.08 0.08 0.08  0.32 0.32 0.33 0.32 0.18 0.18 
                          
Total $0.03 $0.03 $0.62 $0.62 $1.15 $1.15  $0.56 $0.55 $0.03 $0.03 $0.62 $0.62 
                          
Securities (including Series A Preferred Shares of the Company and Class A Units of the Operating Partnership) totaling 3,838,229 in 2007, 3,961,235 in 2006 and 1,945,267 in 2005 and 2,061,459 in 2004 were excluded from the earnings per share computations because their effect would have been antidilutive. The Series A Preferred Shares were converted to Common Shares in November 2004.
Common and Preferred Shares
On December 19, 2006,11, 2007, the Company declared a distribution of $0.44 per Common Share, totaling $39.0$38.5 million, which was paid on January 15, 200718, 2008 to shareholders of record as of January 5,December 30, 2007. On December 19,11, 2006, the Company declared distributions on its Series C Preferred Shares and Series D Preferred Shares to holders of record as of December 30, 2006.January 4, 2008. These shares are entitled to a preferential return of 7.50% and 7.375%, respectively. Distributions paid on January 15, 2007 to holders of Series C Preferred Shares and Series D Preferred Shares totaled $0.9 million and $1.1 million, respectively.
Common Share Repurchases
We maintainThe Company maintains a share repurchase program under which ourthe Board has authorized us to repurchase our common shares from time to time. OurThe Board initially authorized this program in 1998 and has periodically replenished capacity under the program, including, most recently, onprogram. On May 2, 2006 when ourthe Company’s Board restored capacity to 3.5 million common shares.
The Company repurchased 1.8 million shares during the year ended December 31, 2007 for aggregate consideration of $59.4 million under its share repurchase program. As of December 31, 2007, the Company may purchase an additional 0.5 million shares under the plan. 1.6 million of these shares are held in treasury to give the Company the ability to reissue such shares and are reflected as shares held in treasury on the consolidated balance sheet. 0.2 million of these shares were repurchased as part of the Company’s deferred compensation program and are not included as shares held in treasury on the consolidated balance sheet.
During the year ended December 31, 2006, wethe Company repurchased approximately 1.2 million common shares under this program at an average price of $29.22 per share. The shares repurchased in 2006 were retired and therefore are not included as shares held in treasury on the balance sheet.
Repurchases may be made from time to time in the open market or in privately negotiated transactions, subject to market conditions and compliance with legal requirements. The share leaving approximately 2.3 million in remaining capacity. Our Board hasrepurchase program does not limitedcontain any time limitation and does not obligate the duration ofCompany to repurchase any shares. The Company may discontinue the program.program at any time.

F - 32


On October 4, 2006 wethe Company repurchased 1,829,0001.8 million common shares with a portion of the proceeds of our 3.875% Exchangeable Guaranteed Notes at an average purchase price of $32.80 per share (approximately $60.0 million in aggregate). WeThe Company repurchased these shares under a separate Board authorization that provided that the shares repurchased did not reduce capacity under the share repurchase program.
Share Based Compensation
In December 2004, the FASB issued SFAS No. 123(R), “Share-Based Payment” (“SFAS 123(R)”). SFAS 123(R) is an amendment of SFAS 123 and requires that the compensation cost relating to share-based payment transactions be recognized in the financial statements. The cost is required to be measured based on the fair value of the equity or liability instruments issued. SFAS 123(R) also contains additional minimum disclosures requirements including, but not limited to, the valuation method and assumptions

F - 30


used, amounts of compensation capitalized and modifications made. The effective date of SFAS 123(R) was subsequently amended by the SEC to be as of the beginning of the first interim or annual reporting period of the first fiscal year that begins on or after December 15, 2005, and allows several different methods of transition. The Company adopted SFAS 123(R) using the prospective method on January 1, 2006. This adoption did not have a material effect on our consolidated financial statements.
Stock Options
At December 31, 2006,2007, the Company had 1,286,0751,070,099 options outstanding under its shareholder approved equity incentive plan. No options were unvested as of December 31, 20062007 and therefore there is no remaining unrecognized compensation expense associated with these options. Option activity as of December 31, 20062007 and changes during the twelve months ended December 31, 20062007 were as follows:
                 
      Weighted  Weighted Average    
      Average  Remaining Contractual  Aggregate Intrinsic 
  Shares  Exercise Price  Term (in years)  Value (in 000’s) 
Outstanding at January 1, 2006  1,276,722   26.82   2.15   1,888 
Prentiss options converted to Company options as part of the Prentiss acquisition (see Note 3)  496,037   22.00   1.14   5,580 
Exercised  (486,684)  22.88   0.55   5,048 
Forfeited     ��      
 
             
Outstanding at December 31, 2006  1,286,075  $26.45   1.50   8,739 
             
 
Vested at December 31, 2006  1,286,075  $26.45   1.50   8,739 
Exercisable at December 31, 2006  1,286,075  $26.45   1.50   8,739 
                 
      Weighted Weighted Average  
      Average Remaining Contractual Aggregate Intrinsic
  Shares Exercise Price Term (in years) Value (in 000’s)
Outstanding at January 1, 2007  1,286,075  $26.45   1.50  $8,739 
Exercised  (198,495) $28.80   0.87  $1,171 
Forfeited  (17,481)         
                 
                 
Outstanding at December 31, 2007  1,070,099  $26.13   0.54  $(8,775)
                 
                 
Vested at December 31, 2007 (1)  1,070,099  $26.13   0.54  $(8,775)
Exercisable at December 31, 2007 (1)  1,070,099  $26.13   0.54  $(8,775)
There were no option awards granted to employees during the years ended December 31, 2006, 2005, and 2004.
(1)There were 825,389 options that expired unexercised on January 1, 2008.
                        
 Years ended December 31,                        
 2005 2004 Years ended December 31,
 Weighted Weighted 2006 2005
 Average Average Weighted Weighted
 Weighted Remaining Weighted Remaining Average Average
 Average Contractual Average Contractual Weighted Remaining Weighted Remaining
 Exercise Term Exercise Term Average Contractual Average Contractual
 Shares Price (in Years) Shares Price (in Years) Exercise Term Exercise Term
              Shares Price (in Years) Shares Price (in Years)
Outstanding at beginning of year 2,008,022 26.89 2,372,627 26.70  1,276,722 $26.82 2,008,022 $26.89 
 
Granted     
Prentiss options converted to Company options as part of the Prentiss acquisition (See Note 3) 496,037 $22.00   
Exercised  (705,678) 26.94  (337,161) 25.39   (486,684) $22.88  (705,678) $26.94 
Forfeite/Expired  (25,622) 28.80  (27,444) 28.93 
         
Forfeited/Expired    (25,622) $28.80 
Outstanding at end of year 1,276,722 26.82 1.97 2,008,022 26.89 2.88  1,286,075 $26.45 1.50 1,276,722 $26.82 1.97 
             
         
Exercisable at end of year 1,276,722 26.82 2,008,022 26.89  1,286,075 $26.45 1,276,722 $26.82 
              

F - 33


The Company has the ability and intent to issue shares upon stock option exercises. Historically, the Company has issued new common shares to satisfy such exercises.
401(k) Plan
The Company sponsors a 401(k) defined contribution plan for its employees. Each employee may contribute up to 100% of annual compensation, subject to specific limitations under the Internal Revenue Code. At its discretion, the Company can make matching contributions equal to a percentage of the employee’s elective contribution and profit sharing contributions. Employees vest in employer

F - 31


contributions over a three-year service period. The Company contributions were $0.6 million in 2007, $1.1 million in 2006, and $1.0 million in 2005 and $0.9 million in 2004.2005.
Restricted StockShare Awards
The Company’s primary form of share-based compensation has been restricted shares issued under a shareholder approved equity incentive plan that authorizes various equity-based awards. As of December 31, 2006, 338,8602007, 409,282 restricted shares were outstanding and vest over fiveunvested. The vesting period for these shares ranges from three to seven years from the initial grant date. The remaining compensation expense to be recognized for the 338,860409,282 restricted shares outstandingunvested at December 31, 20062007 was approximately $9.8$10.7 million. That expense is expected to be recognized over a weighted average remaining vesting period of 2.42.8 years. For the year ended December 31, 2006,2007, the Company recognized $2.9$3.3 million of compensation expense related to outstandingunvested restricted shares which is included in administrative expenses. The following table summarizes the Company’s restricted share activity for the twelve-months ended December 31, 2006:2007:
                
 Weighted  Weighted 
 Average Grant  Average Grant 
 Shares Date Fair value  Shares Date Fair value 
Non-vested at January 1, 2006 316,134 $25.76 
Non-vested at January 1, 2007 338,860 $28.23 
Granted 240,136 30.72  227,709 34.94 
Vested  (160,972) 26.28   (107,143) 26.45 
Forfeited  (56,438) 28.24   (50,144) 32.28 
          
Non-vested at December 31, 2006 338,860 $28.23 
Non-vested at December 31, 2007 409,282 $31.91 
          
Outperformance Program
On August 28, 2006, the Compensation Committee of the Company’s Board of Trustees adopted a long-term incentive compensation program (the “outperformance program” ).). The Company will make payments (in the form of common shares) to executive-participants under the outperformance program only if the Company’s total shareholder return exceeds percentage hurdles established under the outperformance program. The dollar value of any payments will depend on the extent to which our performance exceeds the hurdles. The Company established the outperformance program under the 1997 Plan.
If the total shareholder return (share price appreciation plus cash dividends) during a three-year measurement period exceeds either of two hurdles (with one hurdle keyed to the greater of a fixed percentage and an industry-based index, and the other hurdle keyed to a fixed percentage), then the Company will fund an incentive compensation pool in accordance with a formula and make pay-outs from the compensation pool in the form of vested and restricted common shares. The awards issued are accounted for in accordance with FASB No. 123R.SFAS 123(R). The fair value of the awards on the date of grant,August 28, 2006, as adjusted for estimated forfeitures, was approximately $5.6 million and will be amortized into expense over the five-year period beginning on the date of grant using a graded vesting attribution model. The fair value of $5.6 million on the date of the initial grant represents approximately 89.9%86.5% of the total that may be awarded, including the effects of a 3.4% forfeiture;awarded; the remaining amount available will be valued when the awards are granted to individuals. In January 2007, the Company awarded an additional 4.5% under the outperformance program. The fair value of the additional award is $0.3 million and will be amortized over the remaining portion of the 5 year period. On the date of each grant, the awards were valued using a Monte Carlo simulation. For the years ended December 31, 2007 and 2006, the Company recognized $1.4 million and $0.5 million, respectively, of compensation expense related to the outperformance program.

F - 34


Employee Share Purchase Plan
On May 9, 2007, the Company’s shareholders approved the 2007 Non-Qualified Employee Share Purchase Plan (the “ESPP”). The ESPP is intended to provide eligible employees with a convenient means to purchase common shares of the Company through payroll deductions and voluntary cash purchases at an amount equal to 85% of the average closing price per share for a specified period. The maximum participant contribution for any plan year is limited to the lesser of 20% of compensation or $25,000. The number of shares reserved for issuance under the ESPP is 1.25 million. Employees will be eligible to make purchases under the ESPP beginning in January 2008, accordingly there were no purchases made during the year ended December 31, 2006, the Company recognized $0.5 million of compensation expenses related to the outperformance program.2007.
16.13.PREFERRED SHARES
In 1998, the Company issued $37.5 million of convertible preferred shares with a 7.25% coupon rate (the Series A Preferred Shares). Each Series A Preferred Share had a stated value of $50.00 and was convertible into Common Shares, at the option of the holder, at a conversion price of $28.00. The Series A Preferred Shares distribution was subject to an increase, if quarterly distributions paid to Common Share holders exceeded $0.51 per share. In November 2004, the holders of the Series A Preferred Shares converted the shares into 1.3 million Common Shares at a price of $24.00.

F - 32


In 2003, the Company issued 2,000,000 7.50% Series C Cumulative Redeemable Preferred Shares (the “Series C Preferred Shares”) for net proceeds of $48.1 million. The Series C Preferred Shares are perpetual. The Company may not redeem Series C Preferred Shares before December 30, 2008 except to preserve its REIT status. On or after December 30, 2008, the Company, at its option, may redeem the Series C Preferred Shares, in whole or in part, by paying $25.00 per share plus accrued but unpaid dividends.
In 2004, the Company issued 2,300,000 7.375% Series D Cumulative Redeemable Preferred Shares (the “Series D Preferred Shares”) for net proceeds of $55.5 million. The Series D Preferred Shares are perpetual. The Company may not redeem Series D Preferred Shares before February 27, 2009 except to preserve its REIT status. On or after February 27, 2009, the Company, at its option, may redeem the Series D Preferred Shares, in whole or in part, by paying $25.00 per share plus accrued but unpaid dividends.
17.14.DISTRIBUTIONS
                        
 Years ended December 31,  Years ended December 31, 
 2006 2005 2004  2007 2006 2005 
Common Share Distributions:  
Ordinary income $1.33 $1.37 $1.48  $1.16 $1.33 $1.37 
Capital gain 0.30 0.08 0.28  0.46 0.30 0.08 
Split year dividend (a) 0.13 0.31    0.13 0.31 
Non-taxable distributions 0.14   
              
Distributions per share (b) $1.76 $1.76 $1.76  $1.76 $1.76 $1.76 
              
Percentage classified as ordinary income  75.6%  77.8%  84.1%  65.9%  75.6%  77.8%
Percentage classified as capital gain  17.0%  4.6%  15.9%  26.1%  17.0%  4.6%
Percentage classified as split year dividend  7.4%  17.6%  0.0%  0.0%  7.4%  17.6%
Percentage classified as non-taxable distribution  8.0%  0.0%  0.0%
  
Preferred Share Distributions:  
       
Total distributions declared $7,992,000 $7,992,000 $9,720,000  $7,992,000 $7,992,000 $7,992,000 
 
(a) Split year dividend amount shown for 2006 was taxable in 2005 and paid in 2006.
(b) The Company also declared a special distribution of $0.02, in addition to the $1.76, in December 2005 for shareholders of record for the period January 1, 2006 through January 4, 2006.
18.15.ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
The following table details the components of accumulated other comprehensive income (loss) as of and for the three years ended December 31, 20062007 (in thousands):

F - 3335


                        
 Unrealized Gains Cash Flow Accumulated Other  Unrealized Gains Cash Flow Accumulated Other 
 (Losses) on Securities Hedges Comprehensive Loss  (Losses) on Securities Hedges Comprehensive Loss 
Balance at January 1, 2004 $868 $(3,026) $(2,158)
Balance at January 1, 2005 $16 $(3,146) $(3,130)
 
Change during year  (696) 309  (387) 241  (713)  (472)
Settlement of treasury locks   (3,238)  (3,238)  240 240 
Reclassification adjustments for losses reclassified into operations  (156) 2,809 2,653   (257) 450 193 
       
 
Balance at December 31, 2004 16  (3,146)  (3,130)
 
Change during year 241  (713)  (472)
Settlement of forward starting swaps  240 240 
Reclassification adjustments for losses reclassified into operations  (257) 450 193 
       
        
Balance at December 31, 2005   (3,169)  (3,169)   (3,169)  (3,169)
 
Change during year  1,330 1,330   1,331 1,331 
Minority interest — consolidated real estate venture partner’s share of unrealized (gains)/losses on derivative financial instruments   (302)  (302)   (302)  (302)
Settlement of forward starting swaps   3,266     3,266 3,266 
Reclassification adjustments for (gains) losses reclassified into operations 328 122 3,716  328 122 450 
              
 
Balance at December 31, 2006 $328 $1,247 $1,575  328 1,248 1,576 
       
Change during year   (3,600)  (3,600)
Minority interest — consolidated real estate venture partner’s share of unrealized (gains)/losses on derivative financial instruments    
Settlement of treasury locks   (3,860)  (3,860)
Settlement of forward starting swaps  1,148 1,148 
Reclassification adjustments for (gains) losses reclassified into operations  (585) 3,436 2,851 
       
Balance at December 31, 2007 $(257) $(1,628) $(1,885)
       
Over time, the unrealized gains and losses held in Accumulated Other Comprehensive Income (“AOCI”) will be reclassified to earnings in the same period(s) in which hedged items are recognized in earnings. The current balance held in AOCI is expected to be reclassified to earnings over the lives of the current hedging instruments, or for realized losses on forecasted debt transactions, over the related term of the debt obligation, as applicable. As of December 31, 2007, AOCI includes unrealized losses of ($2.7) million and net realized gains of $1.1 million on cash flow hedges.
During the years ending December 31, 20062007 and 2005,2006, the Company reclassified approximately $0.1($0.1) million and $0.5$0.1 million, respectively, to interest expense associated with treasury lock agreements and forward starting swaps previously settled (see Note 12)7).
19.16.SEGMENT INFORMATION
As of December 31, 2006,2007, the Company currently manages its portfolio within nineseven segments: (1) Pennsylvania—West,Pennsylvania, (2) Pennsylvania—North,New Jersey/Delaware, (3) New Jersey, (4) Urban, (5) Richmond, Virginia, (6)(4) California—North, (7)(5) California—South, (8) Mid-Atlantic(6) Metropolitan Washington D.C and (9)(7) Southwest. The Pennsylvania—WestPennsylvania segment includes properties in Chester, Delaware, Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery counties in the Philadelphia suburbs of Pennsylvania. The Pennsylvania—North segment includes properties northand the City of Philadelphia in Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery counties.Pennsylvania. The New JerseyJersey/Delaware segment includes properties in counties in the southern and central partspart of New Jersey including Burlington, Camden and Mercer counties and in Bucks County, Pennsylvania. The Urban segment includes properties in the City of Philadelphia, Pennsylvania and the state of Delaware. The Richmond, Virginia segment includes properties primarily in Albemarle, Chesterfield and Henrico counties, the City of Richmond and Durham, North Carolina. The California—North segment includes properties in the City of Oakland and Concord. The California—South segment includes properties in the City of Carlsbad and San Diego.Rancho Bernardo. The Mid-AtlanticMetropolitan Washington, D.C. segment includes properties in Northern Virginia and the Maryland suburbs.suburban Maryland. The Southwest segment includes properties in Dallas and Travis countiescounty of Texas. The corporate group is responsible for cash and investment management, development of certain real estate properties during the construction period, and certain other general support functions. Land held for development and construction in progress are transferred to operating properties by region upon completion of the associated construction or project.

F - 3436


Segment information for the three years ended December 31, 2007, 2006 2005 and 20042005 is as follows (in thousands):
                                                            
 New Jersey Richmond, California - California - Metropolitan,       
 Pennsylvania /Delaware Virginia North South D.C. Southwest Corporate Total 
2007: 
Real estate investments, at cost: 
Operating properties $1,682,839 $663,503 $348,310 $472,818 $106,303 $1,302,833 $236,957 $ $4,813,563 
Developed land and construction-in-progress $ $ $ $ $ $ $ $402,270 $402,270 
Total revenue $275,626 $120,461 $39,140 $64,989 $13,565 $134,596 $37,855 $(2,260) $683,972 
Property operating expenses and real estate taxes 104,393 53,382 14,445 26,565 5,571 47,032 16,440  (3,442) 264,386 
                   
Net operating income $171,233 $67,079 $24,695 $38,424 $7,994 $87,564 $21,415 $1,182 $419,586 
 Pennsylvania - Pennsylvania Richmond, California - California -                            
 West North New Jersey Urban Virginia North South Mid-Atlantic Southwest Corporate Total  
2006:  
Real estate investments, at cost:  
Operating properties $922,347 $530,436 $570,009 $568,008 $244,519 $396,927 $95,942 $1,255,940 $343,177 $ $4,927,305  $1,814,592 $681,574 $244,592 $414,856 $118,265 $1,265,818 $387,608 $ $4,927,305 
Construction-in-progress          217,886 217,886 
Land held for development          110,233 110,233 
 
Developed land and construction-in-progress $ $ $ $ $ $ $ $328,119 $328,119 
Total revenue $124,301 $74,391 $96,926 $85,995 $32,526 $58,203 $11,564 $112,344 $57,734 $8,817 $662,801  $246,422 $117,548 $33,317 $60,679 $14,326 $119,807 $33,586 $4,600 $630,285 
Property operating expenses and real estate taxes 39,163 38,124 41,334 34,362 11,876 23,016 4,039 33,897 23,872 3,902 253,585  99,085 49,871 12,441 24,494 5,435 39,981 11,951 149 243,407 
                                          
Net operating income $85,138 $36,267 $55,592 $51,633 $20,650 $35,187 $7,525 $78,447 $33,862 $4,915 $409,216  $147,337 $67,677 $20,876 $36,185 $8,891 $79,826 $21,635 $4,451 $386,878 
                                          
  
2005:  
Real estate investments, at cost: 
Operating properties $867,089 $558,803 $562,832 $351,407 $219,930 $ $ $ $ $ $2,560,061 
Construction-in-progress          273,240 273,240 
Land held for development          98,518 98,518 
 
Total revenue $111,911 $72,154 $96,683 $65,643 $28,758 $ $ $ $ $5,475 $380,624  $215,840 $117,606 $29,794 $ $ $ $ $1,195 $364,435 
Property operating expenses and real estate taxes 39,116 32,517 39,152 27,183 11,612      (208) 149,372  84,110 47,242 11,732      (1,366) 141,718 
                                          
Net operating income $72,795 $39,637 $57,531 $38,460 $17,146 $ $ $ $ $5,683 $231,252  $131,730 $70,364 $18,062 $ $ $ $ $2,561 $222,717 
                                          
 
2004: 
Total revenue $87,535 $73,882 $94,096 $26,319 $27,099 $ $ $ $ $7,626 $316,557 
Property operating expenses and real estate taxes 25,677 31,079 35,599 12,126 11,772      116,253 
                       
Net operating income $61,858 $42,803 $58,497 $14,193 $15,327 $ $ $ $ $7,626 $200,304 
                       

F - 3537


Net operating income is defined as total revenue less property operating expenses and real estate taxes. Segment net operating income includes revenue, real estate taxes and property operating expenses directly related to operation and management of the properties owned and managed within the respective geographical region. Segment net operating income excludes property level depreciation and amortization, revenue and expenses directly associated with third party real estate management services, expenses associated with corporate administrative support services, and inter-company eliminations. Below is a reconciliation of consolidated net operating income to consolidated income from continuing operations:
                        
 Year Ended December 31,  Year Ended December 31, 
 2006 2005 2004  2007 2006 2005 
 (amounts in thousands)  (amounts in thousands) 
Consolidated net operating income (loss) $409,216 $231,252 $200,304  $419,586 $386,878 $222,717 
Less:  
Interest income 9,513 1,370 841 
Interest expense  (171,177)  (70,152)  (52,642)  (162,675)  (171,177)  (70,380)
Deferred financing costs  (4,607)  (3,766)  (1,968)  (4,496)  (4,607)  (3,540)
Loss on settlement of treasury lock agreements  (3,698)   
Depreciation and amortization  (248,132)  (109,118)  (77,521)  (242,312)  (230,710)  (106,175)
Administrative expenses  (29,644)  (17,982)  (15,100)  (28,182)  (29,644)  (17,982)
Minority interest — partners’ share of consolidated real estate ventures 270     (465) 270  
Minority interest attributable to continuing operations — LP units 1,028  (1,237)  (2,429)  (911) 1,246  (1,043)
Plus:  
Interest income 4,040 9,513 1,370 
Equity in income of real estate ventures 2,165 3,172 2,023  6,955 2,165 3,171 
Net gain on sales of interests in real estate 14,190 4,640 2,975 
Net gain on sales of interests in depreciated real estate 40,498   
Net gain on sales of interests in undepreciated real estate 421 14,190 4,640 
Gain on termination of purchase contract 3,147     3,147  
              
Income (loss) from continuing operations  (14,031) 38,179 56,483  28,761  (18,729) 32,778 
Income (loss) from discontinued operations 24,513 4,588 3,819  27,692 29,211 9,989 
              
Net income (loss) $10,482 $42,767 $60,302  $56,453 $10,482 $42,767 
              
20.17.RELATED-PARTY TRANSACTIONS
In 1998, the Board authorized the Company to make loans totaling up to $5.0 million to enable employees of the Company to purchase Common Shares at fair market value. The loans have five-year terms, are full recourse, and are secured by the Common Shares purchased. The Company made loans under this program in 1998, 1999 and 2001. Interest, payable quarterly, accrues on the loans at the lower of the interest rate borne on borrowings under the Company’s Credit Facility or a rate based on the dividend payments on the Common Shares. As of December 31, 2005, the interest rate was 4.18% per annum. The loans are payable at the earlier of the stated maturity date or 90 days following the employee’s termination. As of December 31, 2005, the outstanding balance of the loan totaled $0.3 million and was secured by an aggregate of 18,803 Common Shares. These loans were repaid in full by December 31, 2006.
The Company held a fifty percent economic interest in an approximately 141,724 square foot office building located at 101 Paragon Drive, Montvale, New Jersey. The remaining fifty percent interest was held by Donald E. Axinn, one of the Company’s Trustees. Although the Company and Mr. Axinn had each committed to provide one half of the $11 million necessary to repay the mortgage loan secured by this property at the maturity of the loan, in February 2006 an unaffiliated third party entered into an agreement to purchase this property for $18.3 million. As a result of the purchase by an unaffiliated third party during August 2006, the Company recognized a $3.1 million gain on termination of its rights under a 1998 contribution agreement, modified in 2005, that entitled the Company to the 50% interest in the joint venture to operate the property. This gain is shown separately on the Company’s income statement as a gain on termination of purchase contract.
The Company owned 384,615 shares of Cypress Communications, Inc. (“Cypress”) Common Stock. These shares were redeemed in July 2005 for $0.3 million. The redemption was the result of Cypress’s merger with another company. Prior to this merger, an officer of the Company held a position on Cypress’s Board of Directors.

F - 3638


21.18.OPERATING LEASES
The Company leases properties to tenants under operating leases with various expiration dates extending to 2023.2030. Minimum future rentals on non-cancelable leases at December 31, 20062007 are as follows (in thousands):
        
Year Minimum Rent  Minimum Rent
2007 $526,755 
2008 488,853  $515,156 
2009 426,608  467,402 
2010 349,210  402,579 
2011 264,411  337,340 
   
2012 277,940 
Thereafter 879,490  1,323,580 
   
Total minimum future rentals presented above do not include amounts to be received as tenant reimbursements for operating costs.
22.19.COMMITMENTS AND CONTINGENCIES
Legal Proceedings
The Company is involved from time to time in litigation on various matters, including disputes with tenants and disputes arising out of agreements to purchase or sell properties. Given the nature of the Company’s business activities, these lawsuits are considered routine to the conduct of its business. The result of any particular lawsuit cannot be predicted, because of the very nature of litigation, the litigation process and its adversarial nature, and the jury system. The Company does not expect that the liabilities, if any, that may ultimately result from such legal actions will have a material adverse effect on the consolidated financial position, results of operations or cash flows of the Company.
There have been recent reports of lawsuits against owners and managers of multifamily and office properties asserting claims of personal injury and property damage caused by the presence of mold in residential units or office space. The Company has been named as a defendant in two lawsuits in the State of New Jersey that allege personal injury as a result of the presence of mold. In 2005, one lawsuit was dismissed by way of summary judgment with prejudice. Unspecified damages are sought on the remaining lawsuit. The Company has referred this lawsuitslawsuit to its environmental insurance carrier and, as of the date of this Form 10-K, the insurance carrier is tenderingcontinuing to tender a defense to this claim.
Letters-of-Credit
Under certain mortgages, the Company has funded required leasing and capital reserve accounts for the benefit of the mortgage lenders with letters-of-credit which totaled $24.2$13.5 million at December 31, 2006.2007. The Company is also required to maintain escrow accounts for taxes, insurance and tenant security deposits and these accounts aggregated $22.6$7.5 million at December 31, 2006.2007. Tenant rents at properties that secure these mortgage loans are deposited into the loan servicer’s depository accounts, which are used to fund debt service, operating expenses, capital expenditures and the escrow and reserve accounts, as necessary. Any excess cash is included in cash and cash equivalents.
Ground Rent
Future minimum rental payments under the terms of all non-cancelable ground leases under which the Company is the lessee are expensed on a straight-line basis regardless of when payments are due. Minimum future rentalsrental payments on non-cancelable leases at December 31, 20062007 are as follows (in thousands):

F - 3739


       
2007 $1,736 
2008 1,736  $1,736 
2009 1,736  1,986 
2010 1,818  2,318 
2011 1,818  2,318 
2012 and there after 271,340 
2012 2,318 
Thereafter 291,420 
Certain of the land leases provide for prepayment of rent on a present value basis using a fixed discount rate. Further, certain of the land lease for properties (currently under development) provide for contingent rent participation by the lessor in certain capital transactions and net operating cash flows of the property after certain returns are achieved by the Company. Such amounts, if any, will be reflected as contingent rent when incurred. The leases also provide for payment by the Company of certain operating costs relating to the land, primarily real estate taxes. The above schedule of future minimum rental payments do not include any contingent rent amounts nor any reimbursed expenses.
Other Commitments or Contingencies
As of December 31, 2006,2007, the Company owned 490417 acres of land for future development.
As part of the Company’s September 2004 acquisition of a portfolio of properties from The Rubenstein Company (which the Company refers to as the TRC Properties in September 2004,acquisition), the Company agreed to issue to the sellers up to a maximum of $9.7 million of Class A Units of the Operating Partnership if certain of the acquired properties achieveachieved at least 95% occupancy prior to September 21, 2007. The maximum number of Units that the Company is obligatedagreed to issue declinesdeclined monthly and as of December 31, 2006, the maximum amount payable under this arrangement was $1.8 million,expired on September 21, 2007 with no amount currently due.additional obligation.
As part of the TRC acquisition, the Company acquired its interest in Two Logan Square, a 696,477 square foot office building in Philadelphia, primarily through its ownership of a second and third mortgage secured by this property. This property is consolidated as the borrower is a variable interest entity and the Company, through its ownership of the second and third mortgages, is the primary beneficiary. The Company currently does not expect to take title to Two Logan Square until, at the earliest, September 2019. In the event thatIf the Company takes fee title to Two Logan Square upon a foreclosure of its mortgage, we havethe Company has agreed to make a payment topay an unaffiliated third party withthat holds a residual interest in the fee owner of this property. Theproperty an amount of the payment would beequal to $0.6 million if the Company(if we must pay a state and local transfer upon taking title,title) and $2.9 million if(if no transfer tax is payable upon the transfer.transfer).
As part of itsthe Company’s 2006 acquisition of Prentiss Properties Trust, the TRC Propertiesacquisition in 2004 and several of our other acquisitions,transactions, the Company agreed not to sell certain of the properties it acquired properties.in transactions that would trigger taxable income to the former owners. In the case of the TRC Properties,acquisition, the Company agreed not to sell the acquired properties for periods ranging from threeup to 15 years from the acquisition date as follows: 201 Radnor Financial Center,king of Prussia Road, 555 Radnor Financial CenterEast Lancaster Avenue and 300 Delaware Avenue (three years)(January 2008); One Rodney Square and 130/150/170 Radnor Financial Center (10 years)(January 2015); and One Logan Square, Two Logan Square and Radnor Corporate Center (15 years)(January 2020). At December 31, 2006,In the Prentiss acquisition, the Company had agreedassumed the obligation of Prentiss not to sell Concord Airport Plaza before March 2018 and 6600 Rockledge before July 2008. The Company also agreed not sell 14 other properties that contain an aggregate 1.0of 1.2 million square feet for periods that expire throughby the end of 2008. The Company’s agreements generally provide that the Companyit may dispose of the subject properties only in transactions that qualify as tax-free exchanges under Section 1031 of the Internal Revenue Code or in other tax deferred transactions. In the event thatIf the Company sells anywere to sell a restricted property before expiration of the properties within the applicable restricted period in a non-exempt transactions,transaction, the Company would be required to paymake significant tax liabilities that would be incurred bypayments to the parties who sold the Companyit the applicable property.property on account of tax liabilities attributed to them.
The Company invests in its properties and regularly incursincur capital expenditures in the ordinary course to maintain the properties. The Company believes that such expenditures enhance our competitiveness. The Company also enters into construction, utility and service contracts in the ordinary course of business which may extend beyond one year. These contracts typically provide for cancellation with insignificant or no cancellation penalties.
23.20.SUBSEQUENT EVENT
DuringOn January 2007,14, 2008, the Company sold two properties7130 Ambassador Drive, an office property located in Allentown, Pennsylvania containing eight buildings, classified as held for sale asan aggregate of December 31, 2006, totaling 26.8 million114,049 net rentable square feet, and one land parcel consisting of 4.7 acres for an aggregate sales price of $114.9$5.8 million.
The Company paid off its $300.0 million 2009 three year notes in January 2007, notice of which was given in November 2006 using proceeds borrowed from the Company’s unsecured credit facility.

F - 3840


24.21.SUMMARY OF QUARTERLY RESULTS (UNAUDITED)
The following is a summary of quarterly financial information as of and for the years ended December 31, 20062007 and 20052006 (in thousands, except per share data):
                            
 1st 2nd 3rd 4th 1st 2nd 3rd 4th
 Quarter Quarter Quarter Quarter
2007: 
Total revenue $165,429 $166,637 $177,748 $174,158 
Net income 19,372 1,204 2,367 33,510 
Income (loss) allocated to Common Shares 17,374  (794) 369 31,512 
Basic earnings (loss) per Common Share $0.20 $(0.01) $ $0.36 
Diluted earnings (loss) per Common Share $0.19 $(0.01) $ $0.36 
 Quarter Quarter Quarter Quarter 
2006:  
Total revenue $153,582 $161,523 $172,962 $174,734  $146,749 $153,347 $164,284 $165,905 
Net income (loss)  (2,642)  (11,556) 564 24,116   (2,642)  (11,556) 564 24,116 
Income (loss) allocated to Common Shares  (4,640)  (13,554)  (1,434) 22,118   (4,640)  (13,554)  (1,434) 22,118 
 
Basic earnings (loss) per Common Share $(0.05) $(0.15) $(0.02) $0.25  $(0.05) $(0.15) $(0.02) $0.25 
Diluted earnings (loss) per Common Share $(0.05) $(0.15) $(0.02) $0.25 
 
2005: 
Total revenue $96,690 $92,843 $93,431 $97,660 
Net income 9,415 8,930 15,794 8,626 
Income allocated to Common Shares 7,417 6,932 13,796 6,628 
 
Basic earnings per Common Share $0.13 $0.12 $0.25 $0.12 
Diluted earnings per Common Share $0.13 $0.12 $0.24 $0.12 
Diluted earnings per (loss) Common Share $(0.05) $(0.15) $(0.02) $0.25 
The summation of quarterly earnings per share amounts do not necessarily equal the full year amounts. The above information was updated to reclassify amounts to discontinued operations. See Note 10.

F - 3941


Brandywine Realty Trust
Schedule II
Schedule II
Valuation and Qualifying Accounts
(in thousands)
                                
 Balance at Balance  Balance at Balance 
 Beginning at End  Beginning at End 
Description of Period Additions (1) Deductions of Period  of Period Additions Deductions (2) of Period 
Allowance for doubtful accounts:  
Year ended December 31, 2006 $4,877 $4,434 $ $9,311��
 
Year ended December 31, 2007 $9,311 $2,147 $1,296 $10,162 
         
Year ended December 31, 2006 (1) $4,877 $4,434 $ $9,311 
                  
Year ended December 31, 2005 $4,085 $792 $ $4,877  $4,085 $792 $ $4,877 
                  
Year ended December 31, 2004 $4,031 $467 $413 $4,085 
         
 
(1) The 2006 additions includes $3.5 million of current year expense and $0.9 million of allowances against receivables assumed in the Prentiss acquisition.
(2)Deductions represent amounts that the Company had fully reserved for in prior periods and pursuit of collection of such amounts was ceased during the period.

F - 40


BRANDYWINE REALTY TRUST
Real Estate and Accumulated Depreciation — December 31, 2006
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
One Greentree Centre Marlton NJ     345   4,440   804   345   5,244   5,589   3,031   1982   1986   40 
Three Greentree Centre Marlton NJ     323   6,024   590   324   6,614   6,937   4,289   1984   1986   40 
Two Greentree Centre Marlton NJ     264   4,693   312   264   5,005   5,269   3,311   1983   1986   40 
1155 Business Center Drive Horsham PA  2,407   1,029   4,124   783   1,029   4,906   5,936   1,436   1990   1996   40 
120 West Germantown Pike Plymouth Meeting PA     685   2,773   1,092   685   3,865   4,550   1,525   1984   1996   40 
140 West Germantown Pike Plymouth Meeting PA     481   1,976   554   482   2,530   3,011   929   1984   1996   40 
18 Campus Boulevard Newtown Square PA  3,227   787   3,312   5   787   3,317   4,104   1,156   1990   1996   40 
2240/2250 Butler Pike Plymouth Meeting PA     1,104   4,627   331   1,104   4,959   6,062   1,939   1984   1996   40 
2260 Butler Pike Plymouth Meeting PA     661   2,727   315   662   3,042   3,703   1,000   1984   1996   40 
3329 Street Road -Greenwood Square Bensalem PA     350   1,401   590   350   1,991   2,341   896   1985   1996   40 
3331 Street Road -Greenwood Square Bensalem PA     1,126   4,511   1,295   1,126   5,806   6,932   2,002   1986   1996   40 
3333 Street Road -Greenwood Square Bensalem PA     851   3,407   966   851   4,374   5,224   1,654   1988   1996   40 
456 Creamery Way Exton PA     635   2,548   (47)  635   2,500   3,136   824   1987   1996   40 
457 Haddonfield Road Cherry Hill NJ  10,689   2,142   9,120   490   2,142   9,610   11,752   3,340   1990   1996   40 
468 Thomas Jones Way Exton PA     526   2,112   163   527   2,275   2,801   747   1990   1996   40 
486 Thomas Jones Way Exton PA     806   3,256   159   806   3,415   4,221   1,206   1990   1996   40 
500 Enterprise Drive Horsham PA     1,303   5,188   (253)  1,303   4,935   6,238   1,778   1990   1996   40 
500 North Gulph Road King Of Prussia PA     1,303   5,201   1,255   1,303   6,456   7,759   2,246   1979   1996   40 
650 Dresher Road Horsham PA  1,609   636   2,501   404   636   2,905   3,541   1,108   1984   1996   40 
6575 Snowdrift Road Allentown PA     601   2,411   437   601   2,848   3,449   822   1988   1996   40 
700 Business Center Drive Horsham PA  1,625   550   2,201   848   550   3,049   3,599   1,248   1986   1996   40 
7248 Tilghman Street Allentown PA     731   2,969   (32)  731   2,937   3,668   980   1987   1996   40 
7310 Tilghman Street Allentown PA     553   2,246   510   553   2,755   3,309   1,178   1985   1996   40 
800 Business Center Drive Horsham PA  2,098   896   3,585   18   896   3,603   4,499   1,150   1986   1996   40 
8000 Lincoln Drive Marlton NJ     606   2,887   688   606   3,575   4,181   1,184   1997   1996   40 
One Progress Drive Horsham PA     1,399   5,629   232   1,399   5,861   7,260   1,936   1986   1996   40 
One Righter Parkway Wilmington DE  10,076   2,545   10,195   563   2,545   10,757   13,303   3,440   1989   1996   40 
1 Foster Avenue Gibbsboro NJ     93   364   42   93   406   499   116   1972   1997   40 
10 Foster Avenue Gibbsboro NJ     244   971   233   244   1,203   1,448   356   1983   1997   40 
100 Berwyn Park Berwyn PA  6,884   1,180   7,290   1,560   1,180   8,850   10,030   2,685   1986   1997   40 
100 Commerce Drive Newark DE     1,160   4,633   1,134   1,160   5,768   6,927   1,808   1989   1997   40 
100 Katchel Blvd Reading PA     1,881   7,423   158   1,881   7,582   9,462   2,183   1970   1997   40 
1000 Atrium Way Mt. Laurel NJ     2,061   8,180   1,065   2,061   9,245   11,306   2,599   1989   1997   40 
1000 Howard Boulevard Mt. Laurel NJ     2,297   9,288   1,328   2,297   10,616   12,913   3,402   1988   1997   40 
10000 Midlantic Drive Mt. Laurel NJ     3,206   12,857   1,100   3,206   13,957   17,163   4,347   1990   1997   40 
100-300 Gundy Drive Reading PA     6,495   25,180   7,583   6,495   32,763   39,258   9,563   1970   1997   40 
1007 Laurel Oak Road Voorhees NJ     1,563   6,241   16   1,564   6,256   7,820   1,754   1996   1997   40 
1120 Executive Boulevard Marlton NJ     2,074   8,415   541   2,074   8,956   11,030   2,864   1987   1997   40 
1336 Enterprise Drive West Goshen PA     731   2,946   52   731   2,998   3,729   926   1989   1997   40 
15000 Midlantic Drive Mt. Laurel NJ     3,061   12,254   165   3,061   12,419   15,480   3,710   1991   1997   40 
17 Campus Boulevard Newtown Square PA  5,002   1,108   5,155   48   1,108   5,203   6,311   1,357   2001   1997   40 
2 Foster Avenue Gibbsboro NJ     185   730   42   185   772   957   225   1974   1997   40 
20 East Clementon Road Gibbsboro NJ     769   3,055   496   769   3,552   4,320   1,072   1986   1997   40 
200 Berwyn Park Berwyn PA  9,415   1,533   9,460   2,071   1,533   11,531   13,064   3,386   1987   1997   40 
2000 Midlantic Drive Mt. Laurel NJ  9,160   2,202   8,823   780   2,203   9,602   11,805   3,083   1989   1997   40 
220 Commerce Drive Fort Washington PA     1,086   4,338   945   1,010   5,359   6,369   1,537   1985   1997   40 
300 Berwyn Park Berwyn PA  12,594   2,206   13,422   2,618   2,206   16,041   18,246   4,878   1989   1997   40 
300 Welsh Road — Building I Horsham PA  2,370   894   3,572   978   894   4,550   5,444   1,352   1980   1997   40 
321 Norristown Road Lower Gwyned PA     1,290   5,176   1,580   1,221   6,825   8,046   2,268   1988   1997   40 
323 Norristown Road Lower Gwyned PA     1,685   6,751   4,263   1,601   11,098   12,699   3,471   1988   1997   40 
4 Foster Avenue Gibbsboro NJ     183   726   93   183   820   1,002   255   1974   1997   40 
4000 Midlantic Drive Mt. Laurel NJ  2,980   714   5,085   (1,939)  714   3,146   3,860   951   1998   1997   40 
5 Foster Avenue Gibbsboro NJ     9   32   26   9   58   67   14   1968   1997   40 
5 U.S. Avenue Gibbsboro NJ     21   81   3   21   84   105   23   1987   1997   40 
50 East Clementon Road Gibbsboro NJ     114   964   3   114   967   1,081   271   1986   1997   40 
500 Office Center Drive Fort Washington PA     1,617   6,480   1,517   1,617   7,997   9,614   2,141   1974   1997   40 
501 Office Center Drive Fort Washington PA     1,796   7,192   13,223   1,796   20,415   22,211   4,538   1974   1997   40 
6 East Clementon Road Gibbsboro NJ     1,345   5,366   664   1,345   6,030   7,375   1,813   1980   1997   40 
655 Business Center Drive Horsham PA  1,698   544   2,529   696   544   3,225   3,769   1,282   1997   1997   40 
7 Foster Avenue Gibbsboro NJ     231   921   140   231   1,061   1,292   321   1983   1997   40 
748 Springdale Drive Exton PA     236   931   216   236   1,146   1,383   327   1986   1997   40 
855 Springdale Drive Exton PA     838   3,370   2,679   838   6,049   6,887   1,117   1986   1997   40 
9000 Midlantic Drive Mt. Laurel NJ  5,789   1,472   5,895   111   1,472   6,007   7,478   1,809   1989   1997   40 
Five Eves Drive Marlton NJ     703   2,819   772   703   3,592   4,294   1,090   1986   1997   40 
Four A Eves Drive Marlton NJ     539   2,168   243   539   2,411   2,950   764   1987   1997   40 

F - 41


BRANDYWINE REALTY TRUST
Real Estate and Accumulated Depreciation — December 31, 2006
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
Four B Eves Drive Marlton NJ     588   2,369   327   588   2,696   3,284   814   1987   1997   40 
Main Street — Piazza Voorhees NJ     696   2,802   262   696   3,064   3,760   1,007   1990   1997   40 
Main Street — Plaza 1000 Voorhees NJ     2,732   10,942   3,627   2,732   14,569   17,301   4,886   1988   1997   40 
Main Street — Promenade Voorhees NJ     531   2,052   191   532   2,242   2,774   745   1988   1997   40 
Two Eves Drive Marlton NJ     818   3,461   (31)  818   3,429   4,248   1,087   1987   1997   40 
100 Gateway Centre Parkway Richmond VA     391   5,410   125   391   5,535   5,926   674   2001   1998   40 
1000 First Avenue King Of Prussia PA  3,054   2,772   10,936   703   2,772   11,639   14,411   2,869   1980   1998   40 
1009 Lenox Drive Lawrenceville NJ     4,876   19,284   3,139   4,876   22,422   27,299   7,008   1989   1998   40 
1020 First Avenue King Of Prussia PA  2,441   2,168   8,576   433   2,168   9,008   11,177   2,287   1984   1998   40 
1040 First Avenue King Of Prussia PA  3,277   2,860   11,282   1,036   2,860   12,318   15,178   3,084   1985   1998   40 
1060 First Avenue King Of Prussia PA  2,985   2,712   10,953   1,883   2,712   12,836   15,548   2,913   1987   1998   40 
14 Campus Boulevard Newtown Square PA  5,117   2,244   4,217   (22)  2,244   4,196   6,439   1,659   1998   1998   40 
150 Corporate Center Drive Camp Hill PA     964   3,871   239   964   4,109   5,074   1,146   1987   1998   40 
1957 Westmoreland Street Richmond VA  2,604   1,061   4,241   235   1,061   4,476   5,537   1,158   1975   1998   40 
200 Corporate Center Drive Camp Hill PA     1,647   6,606   164   1,647   6,771   8,417   1,817   1989   1998   40 
2100-2116 West Laburnam Avenue Richmond VA  552   2,482   8,846   2,300   2,482   11,146   13,628   2,847   1976   1998   40 
2130-2146 Tomlynn Street Richmond VA  985   353   1,416   289   353   1,705   2,058   499   1988   1998   40 
2161-2179 Tomlynn Street Richmond VA  1,040   423   1,695   222   423   1,917   2,340   497   1985   1998   40 
2201-2245 Tomlynn Street Richmond VA  2,576   1,020   4,067   283   1,020   4,351   5,370   1,172   1989   1998   40 
2212-2224 Tomlynn Street Richmond VA  1,211   502   2,014   72   502   2,085   2,588   536   1985   1998   40 
2221-2245 Dabney Road Richmond VA  1,250   530   2,123   203   530   2,326   2,856   595   1994   1998   40 
2240 Dabney Road Richmond VA  617   264   1,059   10   264   1,069   1,333   267   1984   1998   40 
2244 Dabney Road Richmond VA  1,291   550   2,203   38   550   2,241   2,791   563   1993   1998   40 
2246 Dabney Road Richmond VA  1,062   455   1,822   32   455   1,855   2,309   473   1987   1998   40 
2248 Dabney Road Richmond VA  1,337   512   2,049   200   512   2,249   2,761   601   1989   1998   40 
2251 Dabney Road Richmond VA  972   387   1,552   111   387   1,663   2,050   449   1983   1998   40 
2256 Dabney Road Richmond VA  847   356   1,427   275   356   1,702   2,058   409   1982   1998   40 
2277 Dabney Road Richmond VA  1,185   507   2,034   16   507   2,050   2,557   514   1986   1998   40 
2401 Park Drive Harrisburg PA     182   728   187   182   916   1,097   293   1984   1998   40 
2404 Park Drive Harrisburg PA     167   668   249   167   918   1,084   269   1983   1998   40 
2490 Boulevard of the Generals King Of Prussia PA     348   1,394   53   348   1,447   1,795   409   1975   1998   40 
2511 Brittons Hill Road Richmond VA  2,820   1,202   4,820   1,849   1,202   6,669   7,871   1,482   1987   1998   40 
2812 Emerywood Parkway Henrico VA  3,156   1,069   4,281   1,783   1,069   6,064   7,133   1,934   1980   1998   40 
300 Arboretum Place Richmond VA  13,832   5,450   21,892   1,827   5,450   23,719   29,169   6,429   1988   1998   40 
300 Corporate Center Drive Camp Hill PA     4,823   19,301   1,145   4,823   20,446   25,269   5,437   1989   1998   40 
303 Fellowship Drive Mt. Laurel NJ  1,789   1,493   6,055   584   1,494   6,638   8,132   1,696   1979   1998   40 
304 Harper Drive Moorestown NJ  777   657   2,674   379   657   3,052   3,710   769   1975   1998   40 
305 Fellowship Drive Mt. Laurel NJ  1,617   1,421   5,768   1,146   1,421   6,913   8,335   1,618   1980   1998   40 
305 Harper Drive Moorestown NJ  248   223   913   0   223   914   1,136   227   1979   1998   40 
307 Fellowship Drive Mt. Laurel NJ  1,761   1,565   6,342   382   1,565   6,725   8,289   1,660   1981   1998   40 
308 Harper Drive Moorestown NJ     1,643   6,663   499   1,644   7,161   8,805   1,991   1976   1998   40 
309 Fellowship Drive Mt. Laurel NJ  1,878   1,518   6,154   1,205   1,518   7,359   8,877   2,260   1982   1998   40 
33 West State Street Trenton NJ     6,016   24,091   (21)  6,016   24,070   30,086   6,451   1988   1998   40 
426 Lancaster Avenue Devon PA     1,689   6,756   361   1,689   7,118   8,806   1,922   1990   1998   40 
4364 South Alston Avenue Durham NC  1,915   1,622   6,419   728   1,581   7,188   8,769   1,952   1985   1998   40 
4805 Lake Brooke Drive Glen Allen VA  3,960   1,640   6,567   266   1,640   6,832   8,473   1,764   1996   1998   40 
50 East State Street Trenton NJ     8,926   35,735   773   8,926   36,508   45,434   9,946   1989   1998   40 
50 Swedesford Square East Whiteland Twp. PA  4,263   3,902   15,254   (15,254)  3,902      3,902      1986   1998   40 
500 Nationwide Drive Harrisburg PA     173   850   790   173   1,640   1,813   550   1977   1998   40 
52 Swedesford Square East Whiteland Twp. PA  4,661   4,241   16,579   878   4,241   17,457   21,698   4,540   1988   1998   40 
520 Virginia Drive Fort Washington PA     845   3,455   39   845   3,494   4,339   1,016   1987   1998   40 
600 Corporate Circle Drive Harrisburg PA     363   1,452   107   363   1,559   1,922   426   1978   1998   40 
600 East Main Street Richmond VA  11,206   9,808   38,255   5,668   9,808   43,923   53,731   11,744   1986   1998   40 
600 Park Avenue King Of Prussia PA     1,012   4,048   2   1,012   4,050   5,062   1,097   1964   1998   40 
610 Freedom Business Center King Of Prussia PA  5,014   2,017   8,070   674   2,017   8,745   10,761   2,702   1985   1998   40 
620 Allendale Road King Of Prussia PA     1,020   3,839   998   1,020   4,837   5,857   1,774   1961   1998   40 
620 Freedom Business Center King Of Prussia PA  6,750   2,770   11,014   3,193   2,770   14,207   16,977   3,577   1986   1998   40 
630 Clark Avenue King Of Prussia PA     547   2,190   1   547   2,191   2,738   593   1960   1998   40 
630 Freedom Business Center King Of Prussia PA  6,655   2,773   11,144   668   2,773   11,812   14,585   3,337   1989   1998   40 
640 Freedom Business Center King Of Prussia PA  10,539   4,222   16,891   1,318   4,222   18,209   22,431   5,412   1991   1998   40 
650 Park Avenue King Of Prussia PA     1,916   4,378   2,491   1,916   6,869   8,785   1,845   1968   1998   40 
660 Allendale Road King of Prussia PA     396   3,343   (1,636)  396   1,706   2,103   708   1962   1998   40 
680 Allendale Road King Of Prussia PA     689   2,756   679   689   3,435   4,124   1,149   1962   1998   40 
6990 Snowdrift Road Allentown PA        1,962   3,696      5,658   5,658   764   2003   1998   40 
6990 Snowdrift Road Bldg B Allentown PA        2,581   958      3,539   3,539   272   2004   1998   40 

F - 42


BRANDYWINE REALTY TRUST
Schedule III
Real Estate and Accumulated Depreciation - December 31, 2006
2007
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
700 East Gate Drive Mt. Laurel NJ  4,102   3,569   14,436   1,540   3,569   15,977   19,545   4,064   1984   1998   40 
701 East Gate Drive Mt. Laurel NJ  2,048   1,736   6,877   842   1,736   7,719   9,455   2,186   1986   1998   40 
7010 Snowdrift Road Allentown PA  919   818   3,324   464   818   3,789   4,606   886   1991   1998   40 
7150 Windsor Drive Allentown PA  1,188   1,035   4,219   147   1,035   4,366   5,401   1,100   1988   1998   40 
7350 Tilghman Street Allentown PA     3,414   13,716   1,273   3,414   14,988   18,403   4,433   1987   1998   40 
741 First Avenue King Of Prussia PA     1,287   5,151   221   1,287   5,371   6,659   1,517   1966   1998   40 
7450 Tilghman Street Allentown PA  3,482   2,867   11,631   1,574   2,867   13,205   16,072   3,737   1986   1998   40 
751-761 Fifth Avenue King Of Prussia PA     1,097   4,391   32   1,097   4,423   5,520   1,197   1967   1998   40 
7535 Windsor Drive Allentown PA  4,514   3,376   13,400   5,528   3,376   18,928   22,304   4,808   1988   1998   40 
755 Business Center Drive Horsham PA  2,024   1,362   2,334   2,940   1,362   5,274   6,636   1,581   1998   1998   40 
800 Corporate Circle Drive Harrisburg PA     414   1,653   105   414   1,758   2,172   492   1979   1998   40 
815 East Gate Drive Mt. Laurel NJ  703   636   2,584   375   636   2,959   3,595   709   1986   1998   40 
817 East Gate Drive Mt. Laurel NJ  697   611   2,426   153   611   2,579   3,190   633   1986   1998   40 
875 First Avenue King Of Prussia PA     618   2,473   3,258   618   5,731   6,349   1,455   1966   1998   40 
9011 Arboretum Parkway Richmond VA  4,622   1,857   7,702   528   1,857   8,231   10,087   2,063   1991   1998   40 
9100 Arboretum Parkway Richmond VA  3,506   1,362   5,489   556   1,362   6,045   7,407   1,726   1988   1998   40 
920 Harvest Drive Blue Bell PA     2,433   9,738   649   2,433   10,387   12,820   2,708   1990   1998   40 
9200 Arboretum Parkway Richmond VA  2,506   985   3,973   133   985   4,107   5,091   1,040   1988   1998   40 
9210 Arboretum Parkway Richmond VA  2,906   1,110   4,474   583   1,110   5,057   6,167   1,363   1988   1998   40 
9211 Arboretum Parkway Richmond VA  1,458   582   2,433   286   582   2,719   3,301   704   1991   1998   40 
925 Harvest Drive Blue Bell PA     1,671   6,606   807   1,671   7,413   9,084   1,905   1990   1998   40 
993 Lenox Drive Lawrenceville NJ  11,638   2,811   17,996   (5,342)  2,811   12,654   15,465   3,670   1985   1998   40 
997 Lenox Drive Lawrenceville NJ  9,496   2,410   9,700   161   2,410   9,861   12,271   2,635   1987   1998   40 
Dabney III Richmond VA  777   281   1,125   309   281   1,435   1,715   416   1986   1998   40 
Philadelphia Marine Center Philadelphia PA     532   2,196   2,285   628   4,385   5,013   1,035  Various  1998   40 
1050 Westlakes Drive Berwyn PA     2,611   10,445   75      13,131   13,131   2,137   1984   1999   40 
11 Campus Boulevard Newtown Square PA  4,581   1,112   4,067   438   1,112   4,505   5,617   951   1998   1999   40 
400 Berwyn Park Berwyn PA     2,657   4,462   15,897   2,657   20,359   23,016   3,493   1999   1999   40 
630 Dresher Road Horsham PA     771   3,083   1,750   771   4,833   5,604   1,077   1987   1999   40 
7130 Ambassador Drive Allentown PA     761   3,046   161   761   3,207   3,968   693   1991   1999   40 
100 Brandywine Boulevard Newtown PA     1,784   9,811   2,987   1,784   12,798   14,582   2,102   2002   2000   40 
1400 Howard Boulevard Mt. Laurel NJ     443      13,238   1,447   12,233   13,681   77   2005   2000   40 
15 Campus Boulevard Newtown Square PA  5,723   1,164   3,896   673   1,164   4,570   5,733   594   2002   2000   40 
1700 Paoli Pike Malvern PA     458   559   3,582   488   4,111   4,599   861   2000   2000   40 
2000 Lenox Drive Lawrenceville NJ  13,538   2,291   12,221   2,803   2,291   15,024   17,315   4,450   2000   2000   40 
300 Welsh Road — Building II Horsham PA  977   396   1,585   129   396   1,714   2,110   505   1980   2000   40 
401 Plymouth Road Plymouth Meeting PA     6,198   16,131   17,430   6,199   33,560   39,759   6,347   2001   2000   40 
630 Allendale Road King of Prussia PA     2,836   4,028   15,955   2,836   19,983   22,819   5,150   2000   2000   40 
640 Allendale Road King of Prussia PA     439   432   1,480   439   1,913   2,351   269   2000   2000   40 
Bishops Gate Corporate Center Mt. Laurel NJ     934   6,287      934   6,799   7,733   588   2005   2000   40 
Macaroni Grill Plymouth Meeting PA     1,043   555      1,043   555   1,598   24   N/A   2000   40 
10 Lake Center Drive Marlton NJ     1,880   7,521   1,232   1,880   8,753   10,633   1,375   1989   2001   40 
100 Arrandale Boulevard Exton PA     970   3,878   1   970   3,880   4,849   559   1997   2001   40 
100 Lindenwood Drive Malvern PA     473   1,892   377   473   2,269   2,742   507   1985   2001   40 
101 Lindenwood Drive Malvern PA     4,152   16,606   1,575   4,152   18,182   22,333   2,916   1988   2001   40 
1100 Cassett Road Berwyn PA     1,695   6,779   2   1,695   6,781   8,476   976   1997   2001   40 
111 Arrandale Road Exton PA     262   1,048   69   262   1,117   1,379   156   1996   2001   40 
111/113 Pencader Drive Newark DE     1,092   4,366   68   1,092   4,434   5,526   641   1990   2001   40 
1160 Swedesford Road Berwyn PA     1,781   7,124   1,171   1,781   8,295   10,076   1,276   1986   2001   40 
1180 Swedesford Road Berwyn PA     2,086   8,342   1,065   2,086   9,407   11,493   1,465   1987   2001   40 
161 Gaither Drive Mount Laurel NJ     1,016   4,064   434   1,016   4,498   5,514   844   1987   2001   40 
200 Lake Drive East Cherry Hill NJ     2,069   8,275   748   2,069   9,023   11,092   1,434   1989   2001   40 
200 Lindenwood Drive Malvern PA     324   1,295   242   324   1,537   1,861   304   1984   2001   40 
210 Lake Drive East Cherry Hill NJ     1,645   6,579   546   1,645   7,125   8,770   1,136   1986   2001   40 
220 Lake Drive East Cherry Hill NJ     2,144   8,798   738   2,144   9,537   11,680   1,487   1988   2001   40 
30 Lake Center Drive Marlton NJ     1,043   4,171   130   1,043   4,301   5,344   686   1986   2001   40 
300 Lindenwood Drive Malvern PA     848   3,394   104   849   3,498   4,346   510   1991   2001   40 
301 Lindenwood Drive Malvern PA     2,729   10,915   1,868   2,729   12,783   15,512   2,076   1984   2001   40 
412 Creamery Way Exton PA     1,195   4,779   722   1,195   5,502   6,696   1,050   1999   2001   40 
429 Creamery Way Exton PA     1,368   5,471   2   1,368   5,473   6,841   788   1996   2001   40 
436 Creamery Way Exton PA     994   3,978   459   994   4,436   5,431   622   1991   2001   40 
440 Creamery Way Exton PA  2,905   982   3,927   1,004   982   4,931   5,913   707   1991   2001   40 
442 Creamery Way Exton PA  2,516   894   3,576   392   894   3,968   4,862   708   1991   2001   40 
457 Creamery Way Exton PA     777   3,107   272   777   3,379   4,156   537   1990   2001   40 
467 Creamery Way Exton PA     906   3,623   444   906   4,067   4,973   626   1988   2001   40 
                                                 
                      Gross Amount at Which Carried          
          Initial Cost  December 31, 2007          
                  Net                         
                  Improvements              Accumulated          
                  (Retirements)              Depreciation at          
      Encumberances at      Building and  Since      Building and      December 31,  Year of  Year  Depreciable 
  City State December 31, 2007  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2007 (b)  Construction  Acquired  Life 
CALIFORNIA NORTH
                                                
                                                 
1 Kaiser Plaza Oakland CA  48,359   15,034   107,422   3,748   15,318   110,886   126,204   6,801   1978   2006   46 
2101 Webster Street Oakland CA  23,950   13,051   89,728   2,753   13,298   92,235   105,532   7,075   1985   2006   44 
155 Grand Avenue Oakland CA     13,556   54,266   2   13,556   54,268   67,824   822   1990   2007   40 
1901 Harrison Street Oakland CA  29,046   5,442   59,920   1,065   5,545   60,882   66,427   2,954   1985   2006   48 
1333 Broadway Oakland CA     4,519   35,235   3,700   4,781   38,673   43,454   2,412   1972   2006   40 
1200 Concord Avenue Concord CA  19,826   6,395   24,664   629   6,515   25,173   31,688   3,268   1984   2006   34 
1220 Concord Avenue Concord CA  19,834   6,476   24,966   242   6,476   25,208   31,683   3,360   1984   2006   34 
                                                 
CALIFORNIA SOUTH
                                                
                                                 
5780 & 5790 Fleet Street Carlsbad CA     7,073   22,907   3,211   7,516   25,675   33,191   1,871   1999   2006   55 
16870 W Bernardo Drive San Diego CA     2,979   15,896   1,818   3,154   17,539   20,693   1,316   2002   2006   56 
5900 & 5950 La Place Court Carlsbad CA     3,706   11,185   1,547   3,955   12,483   16,438   1,008   1988   2006   48 
5963 La Place Court Carlsbad CA     2,824   9,413   1,595   2,999   10,833   13,832   722   1987   2006   55 
5973 Avenida Encinas Carlsbad CA     2,121   8,361   1,163   2,256   9,389   11,645   890   1986   2006   45 
2035 Corte Del Nogal Carlsbad CA     3,261   6,077   1,164   3,499   7,003   10,502   729   1991   2006   39 
                                                 
METROPOLITAN WASHINGTON, D.C.
                                                
                                                 
1676 International Drive Mclean VA  63,259   18,437   97,538   1,013   18,785   98,203   116,988   4,590   1999   2006   55 
2340 Dulles Corner Boulevard Herndon VA     16,345   65,379   14,950   16,467   80,206   96,674   3,652   1987   2006   40 
2291 Wood Oak Drive Herndon VA     8,243   52,413   7,018   8,782   58,892   67,674   7,483   1999   2006   55 
7101 Wisconsin Avenue Bethesda MD     9,634   48,402   3,542   9,816   51,762   61,577   3,287   1975   2006   45 
3130 Fairview Park Drive Falls Church VA     6,576   51,605   1,539   6,700   53,020   59,720   2,656   1999   2006   53 
196/198 Van Buren Street Herndon VA     7,931   43,812   6,887   8,348   50,282   58,630   3,713   1991   2006   53 
2251 Corporate Park Drive Herndon VA     11,472   45,893   30   11,472   45,923   57,395   1,339   2000   2006   40 
1900 Gallows Road Vienna VA     7,797   47,817   874   7,944   48,544   56,488   3,218   1989   2006   52 
2355 Dulles Corner Boulevard Herndon VA     10,365   43,876   593   10,365   44,469   54,834   2,001   1988   2006   40 
2411 Dulles Corner Park Herndon VA     7,279   46,340   586   7,417   46,789   54,205   3,188   1990   2006   50 
3141 Fairview Park Drive Falls Church VA     5,918   40,981   656   6,050   41,506   47,556   2,243   1988   2006   51 
13880 Dulles Corner Lane Herndon VA     7,236   39,213   395   7,373   39,470   46,843   2,337   1997   2006   55 
2121 Cooperative Way Herndon VA     5,598   38,639   710   5,795   39,152   44,946   2,254   2000   2006   54 
6600 Rockledge Drive Bethesda MD        37,421   6,303      43,725   43,725   1,654   1981   2006   50 
8260 Greensboro Drive Mclean VA  34,063   7,952   33,964   645   8,102   34,459   42,561   2,150   1980   2006   52 
2201 Cooperative Way Herndon VA     4,809   34,093   333   4,809   34,426   39,236   2,976   1990   2006   54 
2273 Research Boulevard Rockville MD  15,285   5,167   31,110   2,890   5,237   33,929   39,166   2,140   1999   2006   45 
8521 Leesburg Pike Vienna VA     4,316   30,885   668   4,397   31,472   35,869   2,052   1984   2006   51 
2275 Research Boulevard Rockville MD  15,240   5,059   29,668   966   5,154   30,539   35,693   1,896   1990   2006   45 
1880 Campus Commons Drive Reston VA     6,164   28,114   86   6,281   28,083   34,364   1,223   1985   2006   52 
2277 Research Boulevard Rockville MD  14,181   4,649   26,952   (251)  4,733   26,616   31,350   1,215   1986   2006   45 
7735 Old Georgetown Road Bethesda MD     4,370   23,192   (76)  4,453   23,034   27,487   1,372   1997   2006   45 
12015 Lee Jackson Memorial Highway Fairfax VA     3,770   22,895   819   3,842   23,643   27,484   1,616   1985   2006   42 
11720 Beltsville Drive Beltsville MD     3,831   16,661   4,891   3,904   21,479   25,382   1,434   1987   2006   46 
13825 Sunrise Valley Drive Herndon VA     3,794   19,365   197   3,866   19,491   23,357   2,180   1989   2006   46 
11781 Lee Jackson Memorial Highway Fairfax VA     3,246   19,836   176   3,307   19,951   23,259   1,532   1982   2006   40 
11700 Beltsville Drive Beltsville MD     2,808   12,081   635   2,863   12,661   15,524   829   1981   2006   46 
4401 Fair Lakes Court Fairfax VA     1,569   11,982   (81)  1,599   11,872   13,471   599   1988   2006   52 
11710 Beltsville Drive Beltsville MD     2,278   11,100   (867)  2,321   10,190   12,511   651   1987   2006   46 
3141 Fairview Park Drive Falls Church VA     733   4,939   (32)  733   4,906   5,640   230   1988   2006   51 
3141 Fairview Park Drive Falls Church VA     297   1,964   0   297   1,964   2,261   80   1988   2006   51 
11740 Beltsville Drive Bethesda MD     198   870   18   202   884   1,086   23   1987   2006   46 
                                                 
PENNSYLVANIA
                                                
                                                 
2929 Arch Street Philadelphia PA        208,570   12,901      221,471   221,471   15,903   2005   N/A   40 
130 North 18th Street Philadelphia PA     14,496   107,736   5,375   14,473   113,134   127,607   13,985   1998   2004   23 
100 North 18th Street Philadelphia PA  71,564   16,066   100,255   4,676   16,066   104,931   120,997   12,388   1988   2004   33 
150 Radnor Chester Road Radnor PA     11,925   36,986   9,248   11,897   46,262   58,159   6,204   1983   2004   29 
555 Lancaster Avenue Radnor PA     8,014   16,508   25,073   8,609   40,985   49,595   3,720   1973   2004   24 
201 King of Prussia Road Radnor PA     8,956   29,811   5,854   8,949   35,671   44,621   4,931   2001   2004   25 
401 Plymouth Road Plymouth Meeting PA     6,198   16,131   15,998   6,199   32,129   38,327   6,028   2001   2000   40 
One Radnor Corporate Center Radnor PA     7,323   28,613   (43)  7,323   28,570   35,893   3,891   1998   2004   29 
Four Radnor Corporate Center Radnor PA     5,406   21,390   7,731   5,705   28,822   34,527   3,895   1995   2004   30 
Five Radnor Corporate Center Radnor PA     6,506   25,525   1,835   6,578   27,288   33,866   3,046   1998   2004   38 
101 West Elm Street W. Conshohocken PA     6,251   25,209   1,192   6,251   26,401   32,652   1,781   1999   2005   40 
Three Radnor Corporate Center Radnor PA     4,773   17,961   787   4,791   18,730   23,521   2,476   1998   2004   29 
400 Berwyn Park Berwyn PA     2,657   4,462   15,922   2,657   20,384   23,041   4,524   1999   1999   40 
555 Croton Road King of Prussia PA     4,486   17,943   478   4,486   18,422   22,907   3,351   1999   2001   40 
640 Freedom Business Center King Of Prussia PA     4,222   16,891   1,644   4,222   18,535   22,757   5,963   1991   1998   40 
630 Allendale Road King of Prussia PA     2,836   4,028   15,509   2,636   19,737   22,373   5,713   2000   2000   40 
101 Lindenwood Drive Malvern PA     4,152   16,606   1,496   4,152   18,103   22,254   3,547   1988   2001   40 
52 Swedesford Square East Whiteland Twp. PA     4,241   16,579   263   4,241   16,842   21,083   4,382   1988   1998   40 
Two Radnor Corporate Center Radnor PA     3,937   15,484   1,265   3,942   16,743   20,686   2,195   1998   2004   29 

F - 43


BRANDYWINE REALTY TRUST
Schedule III
Real Estate and Accumulated Depreciation - December 31, 20062007
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
479 Thomas Jones Way Exton PA     1,075   4,299   681   1,075   4,980   6,055   882   1988   2001   40 
481 John Young Way Exton PA  2,294   496   1,983   1   496   1,984   2,480   286   1997   2001   40 
555 Croton Road King of Prussia PA     4,486   17,943   503   4,486   18,446   22,932   2,887   1999   2001   40 
7360 Windsor Drive Allentown PA     1,451   3,618   2,038   1,451   5,655   7,107   1,594   2001   2001   40 
Two Righter Parkway Wilmington DE     2,802   11,217   5   2,802   11,221   14,024   1,833   1987   2001   40 
1000 Lenox Drive Lawrenceville NJ     1,174   4,696   2,107   1,174   6,803   7,977   1,070   1982   2002   40 
200 Commerce Drive Newark DE  5,841   911   4,414   1,020   911   5,434   6,345   838   1998   2002   40 
400 Commerce Drive Newark DE  11,797   2,528   9,220   4,483   2,528   13,703   16,231   5,593   1997   2002   40 
600 West Germantown Pike Plymouth Meeting PA  11,687   3,652   15,288   649   3,652   15,937   19,589   2,079   1986   2002   40 
610 West Germantown Pike Plymouth Meeting PA  11,315   3,651   14,514   1,331   3,651   15,844   19,496   2,303   1987   2002   40 
620 West Germantown Pike Plymouth Meeting PA  11,453   3,572   14,435   1,641   3,572   16,076   19,648   2,401   1990   2002   40 
630 West Germantown Pike Plymouth Meeting PA  11,297   3,558   14,743   1,269   3,558   16,012   19,570   2,361   1988   2002   40 
6802 Paragon Place Richmond VA     2,917   11,454   2,082   2,917   13,536   16,453   2,061   1989   2002   40 
980 Harvest Drive Blue Bell PA     2,079   7,821   1,215   2,079   9,036   11,115   1,292   1988   2002   40 
565 East Swedesford Road Wayne PA     1,872   7,489   890   1,872   8,379   10,251   785   1984   2003   40 
575 East Swedesford Road Wayne PA     2,178   8,712   459   2,178   9,171   11,349   783   1985   2003   40 
585 East Swedesford Road Wayne PA     1,350   5,401   34   1,350   5,435   6,785   432   1998   2003   40 
595 East Swedesford Road Wayne PA     2,729   10,917   374   2,729   11,291   14,020   891   1998   2003   40 
989 Lenox Drive Lawrenceville NJ     3,701   14,802   860   3,700   15,662   19,363   1,196   1984   2003   40 
100 North 18th Street Philadelphia PA  74,079   16,066   100,255   1,416   16,066   101,671   117,737   8,913   1988   2004   33 
130 North 18th Street Philadelphia PA     14,496   107,736   728   14,473   108,487   122,960   9,514   1998   2004   23 
130 Radnor Chester Road Radnor PA     2,573   8,338   (23)  2,567   8,320   10,888   582   1983   2004   25 
150 Radnor Chester Road Radnor PA     11,925   36,986   8,223   11,897   45,237   57,134   4,146   1983   2004   29 
170 Radnor Chester Road Radnor PA     2,514   8,147   30   2,509   8,182   10,691   569   1983   2004   25 
201 King of Prussia Road Radnor PA     8,956   29,811   1,192   8,949   31,009   39,959   3,147   2001   2004   25 
300 Delaware Avenue Wilmington DE     6,368   13,739   1,089   6,369   14,827   21,196   1,721   1989   2004   23 
525 Lincoln Drive West Marlton NJ     3,727   17,620   1,770   3,727   19,390   23,117   2,267   1986   2004   40 
555 Lancaster Avenue Radnor PA     8,014   16,508   16,468   7,991   32,999   40,990   832   1973   2004   24 
920 North King Street Wilmington DE     6,141   21,140   528   6,141   21,668   27,809   2,016   1989   2004   30 
Five Radnor Corporate Center Radnor PA     6,506   25,525   1,977   6,578   27,430   34,008   2,162   1998   2004   38 
Four Radnor Corporate Center Radnor PA     5,406   21,390   7,648   5,705   28,739   34,444   2,609   1995   2004   30 
Four Tower Bridge Conshohocken PA  10,626   2,672   14,221   (112)  2,672   14,109   16,781   5,192   1998   2004   40 
One Radnor Corporate Center Radnor PA     7,323   28,613   (34)  7,323   28,579   35,902   2,683   1998   2004   29 
Six Tower Bridge Conshohocken PA  14,744   2,827   15,525   20   2,827   15,545   18,372   4,731   1999   2004   40 
Three Radnor Corporate Center Radnor PA     4,773   17,961   (100)  4,791   17,843   22,634   1,654   1998   2004   29 
Two Radnor Corporate Center Radnor PA     3,937   15,484   82   3,942   15,560   19,503   1,501   1998   2004   29 
1 West Elm Street W. Conshohocken PA     3,557   14,249      3,557   14,254   17,811   446   1999   2005   40 
101 West Elm Street W. Conshohocken PA     6,251   25,209   647   6,251   25,856   32,107   942   1999   2005   40 
Arcadia Land Upper Macungie PA     5      0   5      5      N/A   2005   40 
1 Kaiser Plaza Oakland CA  50,088   15,034   107,422   1,130   15,291   108,294   123,585   3,653   1978   2006   46 
100 Lenox Drive Lawrenceville NJ     2,035   8,158   36   2,035   8,194   10,229   188   1991   2006   40 
101-103 Juniper Street Philadelphia VA     464   1,843   1   464   1,844   2,308   35   N/A   2006   40 
11700 Beltsville Drive Beltsville MD     2,808   12,081   46   2,858   12,077   14,935   313   1981   2006   46 
11710 Beltsville Drive Beltsville MD     2,278   11,100   (944)  2,317   10,117   12,434   324   1987   2006   46 
11720 Beltsville Drive Beltsville MD     3,831   16,661   414   3,897   17,009   20,906   536   1987   2006   46 
11740 Beltsville Drive Bethesda MD     198   870   9   202   875   1,077   36   1987   2006   46 
1177 East Beltline Road Coppell TX  20,337   1,516   14,895   13   1,517   14,908   16,425   597   1998   2006   42 
11781 Lee Jackson Memorial Highway Fairfax VA     3,246   19,836   167   3,302   19,948   23,250   999   1982   2006   40 
1200 Concord Avenue Concord CA  20,519   6,395   24,664   551   6,504   25,106   31,610   1,673   1984   2006   34 
12015 Lee Jackson Memorial Highway Fairfax VA     3,770   22,895   184   3,835   23,014   26,849   1,011   1985   2006   42 
1220 Concord Avenue Concord CA  20,528   6,476   24,966   9   6,476   24,975   31,451   1,673   1984   2006   34 
1221 Mopac Expressway Austin TX     3,290   31,548   459   3,361   31,935   35,296   1,045   2001   2006   55 
1250 Capital of Texas Hwy South Austin TX     5,152   37,928   (51)  5,241   37,788   43,029   1,367   1984   2006   52 
1301 Mopac Expressway Austin TX     4,188   41,229   262   4,245   41,434   45,679   1,113   2001   2006   55 
1333 Broadway Oakland CA  24,318   4,519   35,235   159   4,519   35,394   39,913   1,946   1972   2006   40 
13825 Sunrise Valley Drive Herndon VA     3,794   19,365   173   3,859   19,473   23,332   1,083   1989   2006   46 
13880 Dulles Corner Lane Herndon VA     7,236   39,213   344   7,360   39,433   46,793   1,159   1997   2006   55 
1501 South Mopac Expressway Austin TX     3,698   34,912   984   3,761   35,832   39,594   1,656   1999   2006   53 
1601 Mopac Expressway Austin TX     3,538   34,346   692   3,599   34,978   38,577   1,063   2000   2006   54 
1676 International Drive Mclean VA  63,064   18,437   97,538   882   18,753   98,105   116,858   2,275   1999   2006   55 
16870 W Bernardo Drive San Diego CA  10,700   2,979   15,896   6   2,979   15,902   18,881   953   2002   2006   56 
1801 Mopac Expressway Austin TX     1,227   10,959   42   1,248   10,980   12,228   287   1999   2006   53 
1880 Campus Commons Drive Reston VA     6,164   28,114   46   6,270   28,054   34,324   598   1985   2006   52 
1900 Gallows Road Vienna VA     7,797   47,817   556   7,930   48,239   56,170   1,591   1989   2006   52 
1901 Harrison Street Oakland CA  30,056   5,442   59,920   727   5,535   60,554   66,089   1,716   1985   2006   48 
                                                 
                      Gross Amount at Which Carried          
          Initial Cost  December 31, 2007          
                  Net                         
                  Improvements              Accumulated          
                  (Retirements)              Depreciation at          
      Encumberances at      Building and  Since      Building and      December 31,  Year of  Year  Depreciable 
  City State December 31, 2007  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2007 (b)  Construction  Acquired  Life 
600 West Germantown Pike Plymouth Meeting PA  11,441   3,652   15,288   1,470   3,652   16,758   20,410   2,698   1986   2002   40 
620 West Germantown Pike Plymouth Meeting PA  11,212   3,572   14,435   1,938   3,572   16,373   19,945   3,103   1990   2002   40 
630 West Germantown Pike Plymouth Meeting PA  11,060   3,558   14,743   1,383   3,558   16,125   19,684   2,700   1988   2002   40 
610 West Germantown Pike Plymouth Meeting PA  11,083   3,651   14,514   1,488   3,651   16,001   19,653   2,639   1987   2002   40 
300 Berwyn Park Berwyn PA  12,375   2,206   13,422   3,196   2,206   16,618   18,824   5,604   1989   1997   40 
200 Barr Harbour Drive Conshohocken PA  14,472   2,827   15,525   (148)  2,827   15,377   18,204   4,992   1999   2004   40 
1050 Westlakes Drive Berwyn PA     2,611   10,445   5,001      18,057   18,057   2,841   1984   1999   40 
1 West Elm Street W. Conshohocken PA     3,557   14,249      3,557   14,249   17,806   802   1999   2005   40 
181 Washington Street Conshohocken PA  10,518   2,672   14,221   241   2,673   14,462   17,134   5,430   1998   2004   40 
620 Freedom Business Center King Of Prussia PA     2,770   11,014   3,188   2,770   14,202   16,972   4,123   1986   1998   40 
1000 First Avenue King Of Prussia PA     2,772   10,936   2,272   2,772   13,208   15,980   3,311   1980   1998   40 
301 Lindenwood Drive Malvern PA     2,729   10,915   2,301   2,729   13,216   15,945   2,644   1984   2001   40 
1060 First Avenue King Of Prussia PA     2,712   10,953   1,890   2,712   12,843   15,555   3,383   1987   1998   40 
1020 First Avenue King Of Prussia PA     2,168   8,576   4,755   2,168   13,331   15,499   2,690   1984   1998   40 
1040 First Avenue King Of Prussia PA     2,860   11,282   1,041   2,860   12,323   15,183   3,488   1985   1998   40 
595 East Swedesford Road Wayne PA     2,729   10,917   1,482   2,729   12,398   15,128   1,245   1998   2003   40 
630 Freedom Business Center King Of Prussia PA     2,773   11,144   993   2,773   12,137   14,910   3,561   1989   1998   40 
100 Brandywine Boulevard Newtown PA     1,784   9,811   3,007   1,784   12,818   14,602   2,541   2002   2000   40 
1200 Swedesford Road Berwyn PA  4,427   2,595   11,809   1   2,595   11,809   14,405   324   1994   2001   40 
980 Harvest Drive Blue Bell PA     2,079   7,821   4,235   2,079   12,056   14,135   2,133   1988   2002   40 
170 Radnor Chester Road Radnor PA     2,514   8,147   3,446   2,509   11,598   14,107   1,106   1983   2004   25 
920 Harvest Drive Blue Bell PA     2,433   9,738   1,573   2,433   11,312   13,744   3,225   1990   1998   40 
200 Berwyn Park Berwyn PA  9,250   1,533   9,460   1,935   1,533   11,395   12,928   3,791   1987   1997   40 
1180 Swedesford Road Berwyn PA     2,086   8,342   1,191   2,086   9,533   11,619   1,798   1987   2001   40 
575 East Swedesford Road Wayne PA     2,178   8,712   456   2,178   9,168   11,346   1,060   1985   2003   40 
130 Radnor Chester Road Radnor PA     2,573   8,338   163   2,567   8,506   11,074   846   1983   2004   25 
610 Freedom Business Center King Of Prussia PA     2,017   8,070   542   2,017   8,612   10,629   2,529   1985   1998   40 
565 East Swedesford Road Wayne PA     1,872   7,489   868   1,872   8,357   10,229   1,072   1984   2003   40 
1160 Swedesford Road Berwyn PA     1,781   7,124   1,269   1,781   8,394   10,174   1,604   1986   2001   40 
100 Berwyn Park Berwyn PA  6,765   1,180   7,290   1,557   1,180   8,847   10,027   3,102   1986   1997   40 
925 Harvest Drive Blue Bell PA     1,671   6,606   1,114   1,671   7,720   9,391   2,189   1990   1998   40 
14 Campus Boulevard Newtown Square PA  5,026   2,244   4,217   2,694   2,244   6,911   9,155   914   1998   1998   40 
426 Lancaster Avenue Devon PA     1,689   6,756   369   1,689   7,126   8,814   2,108   1990   1998   40 
650 Park Avenue King Of Prussia PA     1,916   4,378   2,502   1,916   6,880   8,796   2,215   1968   1998   40 
1100 Cassett Road Berwyn PA     1,695   6,779   (0)  1,695   6,779   8,474   1,144   1997   2001   40 
500 North Gulph Road King Of Prussia PA     1,303   5,201   1,386   1,303   6,587   7,890   2,393   1979   1996   40 
855 Springdale Drive Exton PA     838   3,370   3,501   838   6,870   7,709   1,423   1986   1997   40 
2930 Chestnut Street Philadelphia PA        7,688   0      7,688   7,688   96   #N/A   2007   40 
2240/2250 Butler Pike Plymouth Meeting PA     1,104   4,627   1,558   1,104   6,185   7,289   2,235   1984   1996   40 
One Progress Drive Horsham PA     1,399   5,629   230   1,399   5,859   7,258   2,075   1986   1996   40 
412 Creamery Way Exton PA     1,195   4,779   911   1,195   5,690   6,885   1,279   1999   2001   40 
429 Creamery Way Exton PA     1,368   5,471   19   1,368   5,490   6,858   934   1996   2001   40 
585 East Swedesford Road Wayne PA     1,350   5,401   32   1,350   5,433   6,783   569   1998   2003   40 
741 First Avenue King Of Prussia PA     1,287   5,151   219   1,287   5,369   6,657   1,661   1966   1998   40 
875 First Avenue King Of Prussia PA     618   2,473   3,257   618   5,729   6,348   1,661   1966   1998   40 
17 Campus Boulevard Newtown Square PA  4,914   1,108   5,155   46   1,108   5,201   6,309   1,597   2001   1997   40 
440 Creamery Way Exton PA     982   3,927   1,313   982   5,240   6,222   875   1991   2001   40 
479 Thomas Jones Way Exton PA     1,075   4,299   679   1,075   4,979   6,053   1,096   1988   2001   40 
11 Campus Boulevard Newtown Square PA  4,498   1,112   4,067   825   1,112   4,892   6,004   1,104   1998   1999   40 
620 Allendale Road King Of Prussia PA     1,020   3,839   989   1,020   4,828   5,848   2,009   1961   1998   40 
500 Enterprise Drive Horsham PA     1,303   5,188   (659)  1,303   4,529   5,832   1,545   1990   1996   40 
15 Campus Boulevard Newtown Square PA  5,622   1,164   3,896   672   1,164   4,568   5,732   769   2002   2000   40 
300 Lindenwood Drive Malvern PA     848   3,394   1,316   849   4,710   5,558   652   1991   2001   40 
436 Creamery Way Exton PA     994   3,978   583   994   4,560   5,555   789   1991   2001   40 
751-761 Fifth Avenue King Of Prussia PA     1,097   4,391   31   1,097   4,422   5,519   1,298   1967   1998   40 
467 Creamery Way Exton PA     906   3,623   882   906   4,505   5,411   826   1988   2001   40 
Philadelphia Marine Center Philadelphia PA     532   2,196   2,680   628   4,780   5,408   755  Various  1998   40 
600 Park Avenue King Of Prussia PA     1,012   4,048   336   1,012   4,384   5,396   1,203   1964   1998   40 
100 Arrandale Boulevard Exton PA     970   3,878   274   970   4,152   5,122   691   1997   2001   40 
442 Creamery Way Exton PA     894   3,576   391   894   3,967   4,861   835   1991   2001   40 
1700 Paoli Pike Malvern PA     458   559   3,746   488   4,275   4,763   1,063   2000   2000   40 
18 Campus Boulevard Newtown Square PA  3,168   787   3,312   571   787   3,883   4,670   1,354   1990   1996   40 
2260 Butler Pike Plymouth Meeting PA     661   2,727   1,092   662   3,818   4,480   1,262   1984   1996   40 
120 West Germantown Pike Plymouth Meeting PA     685   2,773   887   685   3,661   4,345   1,552   1984   1996   40 
486 Thomas Jones Way Exton PA     806   3,256   194   806   3,450   4,256   1,306   1990   1996   40 
457 Creamery Way Exton PA     777   3,107   306   777   3,413   4,190   679   1990   2001   40 
680 Allendale Road King Of Prussia PA     689   2,756   678   689   3,434   4,123   1,267   1962   1998   40 
7130 Ambassador Drive Allentown PA     761   3,046   160   761   3,206   3,967   780   1991   1999   40 
1336 Enterprise Drive West Goshen PA     731   2,946   51   731   2,997   3,728   995   1989   1997   40 
456 Creamery Way Exton PA     635   2,548   (48)  635   2,500   3,135   885   1987   1996   40 
140 West Germantown Pike Plymouth Meeting PA     481   1,976   475   482   2,450   2,932   994   1984   1996   40 
468 Thomas Jones Way Exton PA     526   2,112   163   527   2,274   2,801   843   1990   1996   40 
100 Lindenwood Drive Malvern PA     473   1,892   376   473   2,268   2,741   622   1985   2001   40 

F - 44


BRANDYWINE REALTY TRUST
Schedule III
Real Estate and Accumulated Depreciation - December 31, 20062007
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
196 Van Buren Street Herndon VA  15,338   6,023   31,780   12   6,023   31,792   37,815   1,985   1991   2006   53 
198 Van Buren Street Herndon VA  15,562   1,908   12,032   5   1,908   12,037   13,945   385   1996   2006   53 
2035 Corte Del Nogal Carlsbad CA  5,728   3,261   6,077   2   3,261   6,079   9,340   472   1991   2006   39 
2101 Webster Street Oakland CA     13,051   89,728   1,664   13,275   91,169   104,444   3,323   1985   2006   44 
2121 Cooperative Way Herndon VA     5,598   38,639   538   5,777   38,999   44,775   1,150   2000   2006   54 
2201 Cooperative Way Herndon VA     4,809   34,093   121   4,809   34,215   39,024   1,476   1990   2006   54 
2251 Corporate Park Drive Herndon VA     11,472   45,893   17   11,472   45,910   57,382   96   2000   2006   40 
2273 Research Boulevard Rockville MD  15,787   5,167   31,110   1,326   5,231   32,372   37,602   998   1999   2006   45 
2275 Research Boulevard Rockville MD  15,741   5,059   29,668   805   5,145   30,386   35,532   1,309   1990   2006   45 
2277 Research Boulevard Rockville MD  14,647   4,649   26,952   266   4,726   27,142   31,867   947   1986   2006   45 
2291 Wood Oak Drive Herndon VA  31,000   8,243   52,413   20   8,243   52,433   60,676   5,034   1999   2006   55 
2340 Dulles Corner Boulevard Herndon VA     16,345   65,379   185   16,345   65,565   81,909   547   1987   2006   40 
2355 Dulles Corner Boulevard Herndon VA     10,365   43,876   17   10,365   43,893   54,258   599   1988   2006   40 
2411 Dulles Corner Park Herndon VA     7,279   46,340   406   7,404   46,621   54,026   1,674   1990   2006   50 
2711 N Haskell Avenue Dallas TX     8,597   97,681   647   8,753   98,171   106,924   5,858   1998   2006   37 
3130 Fairview Park Drive Falls Church VA     6,576   51,605   247   6,688   51,740   58,428   1,275   1999   2006   53 
3141 Fairview Park Drive Falls Church VA     5,918   40,981   295   6,038   41,157   47,195   1,340   1988   2006   51 
3141 Fairview Park Drive Falls Church VA     733   4,939   (4)  733   4,935   5,668   134   1988   2006   51 
3141 Fairview Park Drive Falls Church VA     297   1,964   1   297   1,965   2,262   40   1988   2006   51 
4401 Fair Lakes Court Fairfax VA     1,569   11,982   (47)  1,596   11,908   13,504   375   1988   2006   52 
5780 & 5790 Fleet Street Carlsbad CA  14,500   7,073   22,907   8   7,072   22,916   29,988   1,836   1999   2006   55 
5900 & 5950 La Place Court Carlsbad CA  8,252   3,706   11,185   4   3,706   11,189   14,895   691   1988   2006   48 
5963 La Place Court Carlsbad CA  6,534   2,824   9,413   4   2,824   9,417   12,241   560   1987   2006   55 
5973 Avenida Encinas Carlsbad CA  5,486   2,121   8,361   3   2,121   8,364   10,485   618   1986   2006   45 
6600 Rockledge Drive Bethesda MD        37,421   36      37,457   37,457   733   1981   2006   50 
6800 Paragon Place Richmond VA     4,552   18,414   24   4,552   18,438   22,990   120   1986   2006   40 
7101 Wisconsin Avenue Bethesda MD     9,634   48,402   2,215   9,799   50,452   60,251   1,626   1975   2006   45 
7735 Old Georgetown Road Bethesda MD     4,370   23,192   261   4,445   23,379   27,824   903   1997   2006   45 
8260 Greensboro Drive Mclean VA  33,958   7,952   33,964   (50)  8,088   33,777   41,866   1,179   1980   2006   52 
8521 Leesburg Pike Vienna VA     4,316   30,885   549   4,390   31,360   35,749   1,166   1984   2006   51 
Cityplace Conference Center Dallas TX     505   5,071   2   505   5,073   5,578   137   1998   2006   37 
2929 Arch Street Philadelphia PA        208,570   79      208,649   208,649   5,659   2005   N/A   40 
922 Swedesford Road Berwyn PA     218         218      218      N/A   N/A   40 
                                                     
  Subtotal:     $878,969  $754,373  $3,887,653  $284,763  $756,383  $4,170,923  $4,927,305  $515,698             
                                                     
                                                     
Real Estate Classified as Held for Sale @ 12/31/06:                                                
                                                     
160 - 180 West Germantown Pike East Norriton PA  5,105   1,603   6,418   1,587   1,603   8,005   9,608   2,260   1982   1998   40 
1505/1507 LBJ Freeway Farmers Branch TX     4,393   27,825   (603)  4,165   27,450   31,614   1,263   1989   2006   41 
1501/1503 LBJ Freeway Farmers Branch TX     3,727   28,099   (4,142)  3,210   24,474   27,683   1,217   1985   2006   37 
1601 LBJ Freeway Dallas TX     3,122   16,194   (65)  3,099   16,152   19,250   681   1982   2006   34 
1603 LBJ Freeway Dallas TX     1,170   18,045   40   1,149   18,106   19,255   629   1985   2006   34 
                                                     
  Subtotal:     $5,105  $14,015  $96,580  $(3,183) $13,225  $94,186  $107,411  $6,050             
                                                     
  Total:     $884,074  $768,388  $3,984,233  $281,579  $769,608  $4,265,108  $5,034,716  $521,748             
                                                     
                                                 
                      Gross Amount at Which Carried          
          Initial Cost  December 31, 2007          
                  Net                         
                  Improvements              Accumulated          
                  (Retirements)              Depreciation at          
      Encumberances at      Building and  Since      Building and      December 31,  Year of  Year  Depreciable 
  City State December 31, 2007  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2007 (b)  Construction  Acquired  Life 
630 Clark Avenue King Of Prussia PA     547   2,190   0   547   2,190   2,737   643   1960   1998   40 
481 John Young Way Exton PA     496   1,983   0   496   1,984   2,479   335   1997   2001   40 
640 Allendale Road King of Prussia PA     439   432   1,480   439   1,912   2,351   327   2000   2000   40 
660 Allendale Road King of Prussia PA     396   3,343   (1,637)  396   1,706   2,102   745   1962   1998   40 
200 Lindenwood Drive Malvern PA     324   1,295   242   324   1,537   1,861   382   1984   2001   40 
351 Plymouth Road Plymouth Meeting PA     1,043   555      1,043   555   1,598   38   N/A   2000   40 
748 Springdale Drive Exton PA     236   931   275   236   1,206   1,442   387   1986   1997   40 
111 Arrandale Road Exton PA     262   1,048   125   262   1,173   1,435   198   1996   2001   40 
922 Swedesford Road Berwyn PA     218         218      218      N/A   N/A   40 
                                                 
NEW JERSEY/DELAWARE
                                                
                                                 
50 East State Street Trenton NJ     8,926   35,735   1,987   8,926   37,723   46,648   10,866   1989   1998   40 
33 West State Street Trenton NJ     6,016   24,091   27   6,016   24,119   30,134   7,019   1988   1998   40 
920 North King Street Wilmington DE     6,141   21,140   438   6,141   21,578   27,719   2,834   1989   2004   30 
1009 Lenox Drive Lawrenceville NJ     4,876   19,284   3,326   5,057   22,430   27,486   7,222   1989   1998   40 
525 Lincoln Drive West Marlton NJ     3,727   17,620   2,647   3,727   20,267   23,994   3,513   1986   2004   40 
300 Delaware Avenue Wilmington DE     6,368   13,739   1,513   6,369   15,251   21,620   2,404   1989   2004   23 
989 Lenox Drive Lawrenceville NJ     3,701   14,802   1,390   3,812   16,081   19,893   1,744   1984   2003   40 
700 East Gate Drive Mt. Laurel NJ     3,569   14,436   1,565   3,569   16,001   19,570   4,513   1984   1998   40 
10000 Midlantic Drive Mt. Laurel NJ     3,206   12,857   2,442   3,206   15,298   18,505   4,879   1990   1997   40 
Main Street — Plaza 1000 Voorhees NJ     2,732   10,942   4,274   2,732   15,216   17,948   5,626   1988   1997   40 
2000 Lenox Drive Lawrenceville NJ  13,236   2,291   12,221   3,155   2,648   15,019   17,667   5,115   2000   2000   40 
One Righter Parkway Wilmington DE  9,853   2,545   10,195   4,820   2,545   15,015   17,560   4,415   1989   1996   40 
993 Lenox Drive Lawrenceville NJ  11,379   2,811   17,996   (5,155)  2,922   12,729   15,652   4,067   1985   1998   40 
15000 Midlantic Drive Mt. Laurel NJ     3,061   12,254   170   3,061   12,424   15,485   4,008   1991   1997   40 
100 Brandywine Boulevard Newtown PA     1,784   9,811   3,007   1,784   12,818   14,602   2,541   2002   2000   40 
1400 Howard Boulevard Mt. Laurel NJ     443      13,014   1,447   12,009   13,457   375   2005   2000   40 
997 Lenox Drive Lawrenceville NJ  9,277   2,410   9,700   1,191   2,507   10,794   13,301   3,101   1987   1998   40 
1000 Howard Boulevard Mt. Laurel NJ     2,297   9,288   1,316   2,297   10,604   12,901   3,778   1988   1997   40 
1120 Executive Boulevard Marlton NJ     2,074   8,415   2,238   2,074   10,652   12,727   3,423   1987   1997   40 
220 Lake Drive East Cherry Hill NJ     2,144   8,798   1,063   2,144   9,862   12,005   1,865   1988   2001   40 
400 Commerce Drive Newark DE  11,575   2,528   9,220   86   2,528   9,306   11,834   1,699   1997   2002   40 
457 Haddonfield Road Cherry Hill NJ  10,505   2,142   9,120   391   2,142   9,511   11,653   3,538   1990   1996   40 
2000 Midlantic Drive Mt. Laurel NJ  8,959   2,202   8,823   528   2,203   9,351   11,553   3,213   1989   1997   40 
1000 Atrium Way Mt. Laurel NJ     2,061   8,180   1,143   2,061   9,323   11,384   2,956   1989   1997   40 
200 Lake Drive East Cherry Hill NJ     2,069   8,275   894   2,069   9,169   11,238   1,781   1989   2001   40 
10 Lake Center Drive Marlton NJ     1,880   7,521   1,515   1,880   9,035   10,916   1,730   1989   2001   40 
701 East Gate Drive Mt. Laurel NJ     1,736   6,877   828   1,736   7,705   9,441   2,457   1986   1998   40 
Two Righter Parkway Wilmington DE     2,802   11,217   (4,688)  2,802   6,529   9,331   41   1987   2001   40 
210 Lake Drive East Cherry Hill NJ     1,645   6,579   827   1,645   7,407   9,051   1,405   1986   2001   40 
309 Fellowship Drive Mt. Laurel NJ     1,518   6,154   1,205   1,518   7,359   8,877   2,545   1982   1998   40 
308 Harper Drive Moorestown NJ     1,643   6,663   497   1,644   7,159   8,803   2,223   1976   1998   40 
305 Fellowship Drive Mt. Laurel NJ     1,421   5,768   1,262   1,421   7,030   8,451   1,897   1980   1998   40 
307 Fellowship Drive Mt. Laurel NJ     1,565   6,342   481   1,565   6,824   8,388   1,878   1981   1998   40 
303 Fellowship Drive Mt. Laurel NJ     1,493   6,055   617   1,494   6,671   8,165   1,904   1979   1998   40 
1000 Lenox Drive Lawrenceville NJ     1,174   4,696   2,163   1,226   6,806   8,033   1,390   1982   2002   40 
1000 Bishops Gate Mt. Laurel NJ     934   6,287      953   6,812   7,764   927   2005   2000   40 
9000 Midlantic Drive Mt. Laurel NJ  5,662   1,472   5,895   109   1,472   6,005   7,476   1,952   1989   1997   40 
6 East Clementon Road Gibbsboro NJ     1,345   5,366   457   1,345   5,823   7,168   1,826   1980   1997   40 
100 Commerce Drive Newark DE     1,160   4,633   1,156   1,160   5,789   6,949   1,970   1989   1997   40 
Three Greentree Centre Marlton NJ     323   6,024   558   324   6,582   6,905   4,473   1984   1986   40 
200 Commerce Drive Newark DE  5,765   911   4,414   1,018   911   5,432   6,343   1,004   1998   2002   40 
30 Lake Center Drive Marlton NJ     1,043   4,171   932   1,043   5,104   6,146   865   1986   2001   40 
161 Gaither Drive Mount Laurel NJ     1,016   4,064   585   1,016   4,649   5,665   817   1987   2001   40 
Two Greentree Centre Marlton NJ     264   4,693   600   264   5,293   5,557   3,522   1983   1986   40 
One Greentree Centre Marlton NJ     345   4,440   613   345   5,054   5,398   3,015   1982   1986   40 
Two Eves Drive Marlton NJ     818   3,461   56   818   3,517   4,335   1,201   1987   1997   40 
Five Eves Drive Marlton NJ     703   2,819   771   703   3,590   4,293   1,269   1986   1997   40 
4000 Midlantic Drive Mt. Laurel NJ  2,911   714   5,085   (1,524)  714   3,561   4,275   1,079   1998   1997   40 
20 East Clementon Road Gibbsboro NJ     769   3,055   437   769   3,492   4,261   1,195   1986   1997   40 
8000 Lincoln Drive Marlton NJ     606   2,887   659   606   3,545   4,152   1,405   1997   1996   40 
304 Harper Drive Moorestown NJ     657   2,674   448   657   3,122   3,779   910   1975   1998   40 
Main Street — Piazza Voorhees NJ     696   2,802   225   696   3,027   3,723   1,047   1990   1997   40 
815 East Gate Drive Mt. Laurel NJ     636   2,584   307   636   2,891   3,527   796   1986   1998   40 
Four B Eves Drive Marlton NJ     588   2,369   381   588   2,749   3,338   921   1987   1997   40 
817 East Gate Drive Mt. Laurel NJ     611   2,426   152   611   2,578   3,189   697   1986   1998   40 
Four A Eves Drive Marlton NJ     539   2,168   243   539   2,411   2,950   855   1987   1997   40 
Main Street — Promenade Voorhees NJ     531   2,052   151   532   2,203   2,734   759   1988   1997   40 
10 Foster Avenue Gibbsboro NJ     244   971   225   244   1,196   1,440   394   1983   1997   40 
7 Foster Avenue Gibbsboro NJ     231   921   121   231   1,041   1,273   332   1983   1997   40 
305 Harper Drive Moorestown NJ     223   913   0   223   913   1,136   248   1979   1998   40 
50 East Clementon Road Gibbsboro NJ     114   964   3   114   967   1,081   293   1986   1997   40 
4 Foster Avenue Gibbsboro NJ     183   726   84   183   811   993   279   1974   1997   40 

F - 45


BRANDYWINE REALTY TRUST
Schedule III
Real Estate and Accumulated Depreciation - December 31, 2007
(in thousands)
                                                 
                      Gross Amount at Which Carried          
          Initial Cost  December 31, 2007          
                  Net                         
                  Improvements              Accumulated          
                  (Retirements)              Depreciation at          
      Encumberances at      Building and  Since      Building and      December 31,  Year of  Year  Depreciable 
  City State December 31, 2007  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2007 (b)  Construction  Acquired  Life 
2 Foster Avenue Gibbsboro NJ     185   730   42   185   772   957   246   1974   1997   40 
1 Foster Avenue Gibbsboro NJ     93   364   63   93   428   520   129   1972   1997   40 
5 U.S. Avenue Gibbsboro NJ     21   81   3   21   84   105   25   1987   1997   40 
5 Foster Avenue Gibbsboro NJ     9   32   26   9   58   67   16   1968   1997   40 
                                                 
SOUTHWEST
                                                
                                                 
1250 Capital of Texas Hwy South Austin TX     5,152   37,928   3,512   5,250   41,343   46,593   3,024   1984   2006   52 
1301 Mopac Expressway Austin TX     4,188   41,229   481   4,250   41,648   45,898   2,165   2001   2006   55 
1601 Mopac Expressway Austin TX     3,538   34,346   2,267   3,605   36,547   40,151   2,524   2000   2006   54 
1501 South Mopac Expressway Austin TX     3,698   34,912   1,150   3,768   35,992   39,759   3,433   1999   2006   53 
1221 Mopac Expressway Austin TX     3,290   31,548   652   3,369   32,120   35,489   1,926   2001   2006   55 
1177 East Beltline Road Coppell TX  20,112   1,516   14,895   8   1,517   14,903   16,420   1,246   1998   2006   42 
1801 Mopac Expressway Austin TX     1,227   10,959   460   1,250   11,395   12,646   553   1999   2006   53 
                                                 
RICHMOND
                                                
                                                 
600 East Main Street Richmond VA     9,808   38,255   5,632   9,808   43,887   53,695   13,231   1986   1998   40 
300 Arboretum Place Richmond VA  13,513   5,450   21,892   1,864   5,450   23,757   29,206   7,061   1988   1998   40 
7501 Boulders View Drive Richmond VA     4,925   19,699   257   5,181   19,700   24,881   206   1990   2007   40 
7300 Beaufont Springs Drive Richmond VA     4,922   19,689   251   5,172   19,690   24,862   205   2000   2007   40 
6800 Paragon Place Richmond VA     4,552   18,414   236   4,552   18,650   23,202   626   1986   2006   40 
6802 Paragon Place Richmond VA     2,917   11,454   2,530   2,917   13,984   16,901   2,665   1989   2002   40 
1025 Boulders Parkway Richmond VA     2,824   11,297   251   3,074   11,298   14,372   118   1994   2007   40 
2100-2116 West Laburnam Avenue Richmond VA     2,482   8,846   2,278   2,482   11,124   13,606   3,064   1976   1998   40 
7401 Beaufont Springs Drive Richmond VA     2,599   10,396   251   2,849   10,397   13,246   108   1998   2007   40 
7325 Beaufont Springs Drive Richmond VA     2,594   10,377   251   2,844   10,378   13,222   108   1999   2007   40 
9011 Arboretum Parkway Richmond VA     1,857   7,702   892   1,857   8,594   10,451   2,228   1991   1998   40 
6806 Paragon Place Richmond VA        10,288   0      10,288   10,288   415   2007   2005   40 
4805 Lake Brooke Drive Glen Allen VA     1,640   6,567   1,312   1,640   7,879   9,519   2,023   1996   1998   40 
4364 South Alston Avenue Durham NC     1,622   6,419   910   1,581   7,370   8,951   2,182   1985   1998   40 
2511 Brittons Hill Road Richmond VA     1,202   4,820   1,863   1,202   6,683   7,885   1,762   1987   1998   40 
9100 Arboretum Parkway Richmond VA  3,425   1,362   5,489   834   1,362   6,323   7,685   1,665   1988   1998   40 
2812 Emerywood Parkway Henrico VA     1,069   4,281   1,902   1,069   6,183   7,252   2,302   1980   1998   40 
9210 Arboretum Parkway Richmond VA  2,840   1,110   4,474   581   1,110   5,055   6,165   1,551   1988   1998   40 
100 Gateway Centre Parkway Richmond VA     391   5,410   123   391   5,533   5,924   812   2001   1998   40 
1957 Westmoreland Street Richmond VA     1,061   4,241   234   1,061   4,475   5,536   1,276   1975   1998   40 
2201-2245 Tomlynn Street Richmond VA     1,020   4,067   391   1,020   4,458   5,478   1,255   1989   1998   40 
9200 Arboretum Parkway Richmond VA  2,447   985   3,973   142   985   4,115   5,100   1,148   1988   1998   40 
9211 Arboretum Parkway Richmond VA     582   2,433   243   582   2,677   3,258   758   1991   1998   40 
2248 Dabney Road Richmond VA     512   2,049   304   512   2,354   2,865   684   1989   1998   40 
2221-2245 Dabney Road Richmond VA     530   2,123   176   530   2,299   2,829   659   1994   1998   40 
2244 Dabney Road Richmond VA     550   2,203   37   550   2,240   2,790   617   1993   1998   40 
2212-2224 Tomlynn Street Richmond VA     502   2,014   157   502   2,171   2,673   595   1985   1998   40 
2277 Dabney Road Richmond VA     507   2,034   15   507   2,049   2,556   563   1986   1998   40 
2161-2179 Tomlynn Street Richmond VA     423   1,695   269   423   1,964   2,387   559   1985   1998   40 
2246 Dabney Road Richmond VA     455   1,822   18   455   1,840   2,295   504   1987   1998   40 
2130-2146 Tomlynn Street Richmond VA     353   1,416   288   353   1,704   2,057   571   1988   1998   40 
2256 Dabney Road Richmond VA     356   1,427   271   356   1,698   2,054   469   1982   1998   40 
2251 Dabney Road Richmond VA     387   1,552   111   387   1,662   2,050   503   1983   1998   40 
2120 Tomlynn Street Richmond VA     281   1,125   251   281   1,377   1,657   417   1986   1998   40 
2240 Dabney Road Richmond VA     264   1,059   10   264   1,069   1,334   293   1984   1998   40 
                                         
Total:
     $611,898  $720,198  $3,705,120  $387,701  $727,979  $4,085,584  $4,813,563  $558,908             
                                         

F - 46


(a) Reconciliation of Real Estate:
The following table reconciles the real estate investments from January 1, 2004 to December 31, 2006 (in thousands):
             
  2006  2005  2004 
Balance at beginning of year $2,560,061  $2,483,134  $1,869,744 
Additions:            
Acquisitions  2,370,241   71,783   578,197 
Consolidation of VIE’s (1)        35,245 
Capital expenditures  334,238   47,732   30,953 
Less:            
Dispositions  (229,824)  (42,588)  (31,005)
Assets transferred to held-for-sale  (107,411)      
          
Balance at end of year $4,927,305  $2,560,061  $2,483,134 
          
     The following table reconciles the real estate investments from January 1, 2005 to December 31, 2007 (in thousands):
             
  2007  2006  2005 
Balance at beginning of year $4,927,305  $2,560,061  $2,483,134 
             
Additions:            
Acquisitions  158,399   2,370,241   71,783 
Capital expenditures  179,691   334,238   47,732 
             
Less:            
Dispositions  (451,832)  (229,824)  (42,588)
Assets transferred to held-for-sale     (107,411)   
             
          
Balance at end of year $4,813,563  $4,927,305  $2,560,061 
          
     The aggregate cost for federal income tax purposes is $4.5 billion as of December 31, 2007.
(b) Reconciliation of Accumulated Depreciation:
The following table reconciles the accumulated depreciation on real estate investments from January 1, 2004 to December 31, 2006 (in thousands):
             
  2006  2005  2004 
Balance at beginning of year $390,333  $325,802  $268,091 
Additions:            
Depreciation expense — continued operations  162,503   78,465   60,179 
Depreciation expense — discontinued operations  12,305   171   224 
Consolidation of VIE’s (1)        7,741 
Acquisitions  1,037       
Less:            
Dispositions  (44,430)  (14,105)  (10,433)
Assets transferred to held-for-sale  (6,050)      
          
Balance at end of year $515,698  $390,333  $325,802 
          
     The following table reconciles the accumulated depreciation on real estate investments from January 1, 2005 to December 31, 2007 (in thousands):
             
  2007  2006  2005 
Balance at beginning of year $515,698  $390,333  $325,802 
             
Additions:            
Depreciation expense — continued operations  167,160   162,503   78,465 
Depreciation expense — discontinued operations  4,748   12,305   171 
Acquisitions     1,037    
             
Less:            
Dispositions  (128,698)  (44,430)  (14,105)
Assets transferred to held-for-sale     (6,050)   
             
          
Balance at end of year $558,908  $515,698  $390,333 
          
(1)- Joint ventures which were consolidated at March 31, 2004 under Financial Interpretation 46-R (“FIN-46-R”), “Consolidation of Variable Interest Entities.”
(2)- Schedule III excludes an asset owned that is subject to a deferred financing lease.

F - 4647


Report of Independent Registered Public Accounting Firm
To the Partners of Brandywine Operating Partnership, L.P.:
We have completed an integrated audit of Brandywine Operating Partnership, L.P’s and its subsidiaries (collectively the “Partnership”) December 31, 2006 consolidated financial statements and of its internal control over financial reporting as of December 31, 2006 and audits of its December 31, 2005 and 2004 consolidated financial statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Our opinions, based on our audits, are presented below.
Consolidated financial statements and financial statement schedules
In our opinion, the consolidated financial statements listed in the index appearing under Item 15(a)(2)(1) present fairly, in all material respects, the financial position of Brandywine Operating Partnership L.P. and its subsidiaries (collectively the(the “Partnership”) at December 31, 20062007 and 2005,2006, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 20062007 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedules listed in the index appearing under Item 15(a)(2)present fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. These financial statements and financial statement schedules are the responsibility of the Partnership’s management. Our responsibility is to express an opinion on these financial statements and financial statement schedules based on our audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit of financial statements includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
Internal control over financial reporting
Also in our opinion, management’s assessment, included in the accompanying Form 10-K appearing under Item 9A, that the Partnership maintained effective internal control over financial reporting as of December 31, 2006 based on criteria established inInternal Control — Integrated Frameworkissued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), is fairly stated, in all material respects, based on those criteria. Furthermore, in our opinion, the Partnership maintained, in all material respects, effective internal control over financial reporting as of December 31, 2006,2007, based on criteria established inInternal Control - Integrated Frameworkissued by the COSO.Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Partnership’s management is responsible for these financial statements and financial statement schedules, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting.reporting, included in Management’s Report on Internal Control over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on management’s assessmentthese financial statements, on the financial statement schedules, and on the effectiveness of the Partnership’s internal control over financial reporting based on our audit.integrated audits. We conducted our audit of internal control over financial reportingaudits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the auditaudits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. AnOur audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting includesincluded obtaining an understanding of internal control over financial reporting, evaluating management’s assessment,assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control andbased on the assessed risk. Our audits also included performing such other procedures as we considerconsidered necessary in the circumstances. We believe that our audit providesaudits provide a reasonable basis for our opinions.
A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external

F - 47

48


financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the partnership;company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
As described in Management’s Report on Internal Control Over Financial Reporting, management has excluded the Partnership’s investments in Four and Six Tower Bridge Associates from its assessment of internal control over financial reporting as of December 31, 20062007 because the Partnership does not have the right and authority to assess the internal control over financial reporting of the individual entities and it lacks the ability to influence or modify the internal control over financial reporting of the individual entities. Four and Six Tower Bridge Associates are two real estate partnerships, created prior to December 13, 2003, which the Partnership started consolidating under Financial Accounting Standards Board Interpretation No. 46R, “Consolidation of Variable Interest Entities” on March 31, 2004. We have also excluded Four and Six Tower Bridge Associates from our audit of internal control over financial reporting. The total assets and total revenue of Four and Six Tower Bridge are two consolidated real estate partnerships whose total assets and total revenuesAssociates represent, in the aggregate less than 1% and 1%, respectively, of the relatedPartnership’s consolidated financial statement amounts as of and for the year ended December 31, 2006.2007.
/s/ PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 28, 2007

F - 48


BRANDYWINE OPERATING PARTNERSHIP, L.P.
CONSOLIDATED BALANCE SHEETS
(in thousands, except share and per share information)
         
  December 31, 
  2006  2005 
ASSETS
        
Real estate investments:        
Operating properties $4,927,305  $2,560,061 
Accumulated depreciation  (515,698)  (390,333)
       
Operating real estate investments, net  4,411,607   2,169,728 
Construction-in-progress  217,886   273,240 
Land held for development  110,233   98,518 
       
Total real estate investments, net  4,739,726   2,541,486 
         
Cash and cash equivalents  25,379   7,174 
Restricted cash  22,557   18,498 
Accounts receivable, net  19,957   12,874 
Accrued rent receivable, net  71,589   47,034 
Asset held for sale  126,016    
Investment in unconsolidated ventures  74,574   13,331 
Deferred costs, net  73,708   37,602 
Intangible assets, net  281,251   78,097 
Other assets  73,506   49,649 
       
Total assets $5,508,263  $2,805,745 
       
LIABILITIES AND PARTNERS’ EQUITY
        
Mortgage notes payable $883,920  $494,777 
Unsecured notes  2,208,310   936,607 
Unsecured credit facility  60,000   90,000 
Accounts payable and accrued expenses  108,400   52,635 
Distributions payable  42,760   28,880 
Tenant security deposits and deferred rents  55,697   20,953 
Acquired below market leases, net of accumulated amortization of $26,009 and $6,931  92,527   34,704 
Other liabilities  13,906   4,411 
Mortgage notes payable and other liabilities held for sale  20,826    
       
Total liabilities  3,486,346   1,662,967 
Minority interest — partners’ share of consolidated real estate ventures  34,436    
Commitments and contingencies (Note 21)        
Redeemable limited partnership units at redemption value; 3,961,235 and 1,945,267 issued and outstanding in 2006 and 2005, respectively  131,711   54,300 
Partners’ equity:        
7.50% Series D Preferred Mirror Units; 2,000,000 issued and outstanding in 2006 and 2005  47,912   47,912 
7.375% Series E Preferred Mirror Units; 2,300,000 issued and outstanding in 2006 and 2005  55,538   55,538 
General Partnership Capital, 88,327,041 and 56,179,075 units issued and outstanding in 2006 and 2005, respectively  1,750,745   988,197 
Accumulated other comprehensive loss  1,575   (3,169)
       
Total partners’ equity  1,855,770   1,088,478 
       
Total liabilities, minority interest, and partners’ equity $5,508,263  $2,805,745 
       
The accompanying notes are an integral part of these consolidated financial statements.27, 2008

F - 49


BRANDYWINE OPERATING PARTNERSHIP, L.P.
CONSOLIDATED STATEMENTS OF OPERATIONS
BALANCE SHEETS
(in thousands, except unitshare and per unitshare information)
             
  Years ended December 31, 
  2006  2005  2004 
Revenue:
            
Rents $559,936  $318,218  $267,710 
Tenant reimbursements  80,470   48,562   36,849 
Other  22,395   13,844   11,998 
          
Total revenue  662,801   380,624   316,557 
 
Operating Expenses:
            
Property operating expenses  188,001   111,192   86,358 
Real estate taxes  65,584   38,180   29,895 
Depreciation and amortization  248,132   109,118   77,521 
Administrative expenses  29,644   17,982   15,100 
          
Total operating expenses  531,361   276,472   208,874 
          
Operating income
  131,440   104,152   107,683 
Other Income (Expense):
            
Interest income  9,513   1,370   841 
Interest expense  (171,177)  (70,152)  (52,642)
Interest expense — Deferred financing costs  (4,607)  (3,766)  (1,968)
Equity in income of real estate ventures  2,165   3,172   2,023 
Net gain on sale of interests in real estate  14,190   4,640   2,975 
Gain on termination of purchase contract  3,147       
          
Income (loss) before minority interest
  (15,329)  39,416   58,912 
Minority interest — partners’ share of consolidated real estate ventures  270   (154)  206 
          
Income (loss) from continuing operations
  (15,059)  39,262   59,118 
Discontinued operations:
            
Income from discontinued operations  7,681   2,555   827 
Net gain on disposition of discontinued operations  20,243   2,196   3,136 
Minority interest — partners’ share of consolidated real estate ventures  (2,239)      
          
Income from discontinued operations  25,685   4,751   3,963 
          
Net income
  10,626   44,013   63,081 
Income allocated to Preferred Units  (7,992)  (7,992)  (10,555)
Preferred Unit redemption gain        4,500 
          
Income allocated to Common Partnership Units
 $2,634  $36,021  $57,026 
          
             
Basic earnings per Common Partnership Unit:
            
Continuing operations $(0.25) $0.54  $1.07 
Discontinued operations  0.27   0.08   0.08 
          
  $0.03  $0.62  $1.15 
          
             
Diluted earnings per Common Partnership Unit:
            
Continuing operations $(0.24) $0.54  $1.07 
Discontinued operations  0.27   0.08   0.08 
          
  $0.03  $0.62  $1.14 
          
             
Basic weighted average common partnership unit
  93,703,601   57,852,842   49,600,634 
             
Diluted weighted average common partnership unit
  94,222,125   58,111,162   49,837,549 
         
  December 31, 
  2007  2006 
ASSETS
        
Real estate investments:        
Operating properties $4,813,563  $4,927,305 
Accumulated depreciation  (558,908)  (515,698)
       
Operating real estate investments, net  4,254,655   4,411,607 
Development land and construction-in-progress  402,270   328,119 
       
Total real estate investments, net  4,656,925   4,739,726 
         
Cash and cash equivalents  5,600   25,379 
Accounts receivable, net  17,057   19,957 
Accrued rent receivable, net  83,098   71,589 
Asset held for sale     126,016 
Investment in unconsolidated ventures  71,598   74,574 
Deferred costs, net  87,123   73,708 
Intangible assets, net  218,149   281,251 
Other assets  74,549   96,818 
       
Total assets $5,214,099  $5,509,018 
       
LIABILITIES AND PARTNERS’ EQUITY
        
Mortgage notes payable $611,898  $883,920 
Unsecured term loan  150,000    
Unsecured notes  2,208,344   2,208,310 
Unsecured credit facility  130,727   60,000 
Accounts payable and accrued expenses  80,732   108,400 
Distributions payable  42,368   42,760 
Tenant security deposits and deferred rents  65,241   55,697 
Acquired below market leases, net of accumulated amortization of $36,544 and $26,009  67,281   92,527 
Other liabilities  30,154   14,661 
Mortgage notes payable and other liabilities held for sale     20,826 
       
Total liabilities  3,386,745   3,487,101 
         
Minority interest — partners’ share of consolidated real estate ventures     34,428 
         
Commitments and contingencies (Note 18)        
Redeemable limited partnership units at redemption value; 3,838,229 and 3,961,235 issued and outstanding in 2007 and 2006, respectively  68,819   131,718 
         
Partners’ equity:        
7.50% Series D Preferred Mirror Units; 2,000,000 issued and outstanding in 2006 and 2005  47,912   47,912 
7.375% Series E Preferred Mirror Units; 2,300,000 issued and outstanding in 2006 and 2005  55,538   55,538 
General Partnership Capital, 87,015,600 and 88,327,041 units issued and outstanding in 2007 and 2006, respectively  1,656,970   1,750,745 
Accumulated other comprehensive loss  (1,885)  1,576 
       
Total partners’ equity  1,758,535   1,855,771 
       
Total liabilities, minority interest, and partners’ equity $5,214,099  $5,509,018 
       
The accompanying notes are an integral part of these consolidated financial statements.

F - 50


BRANDYWINE OPERATING PARTNERSHIP, L.P.
CONSOLIDATED STATEMENTS OF OTHER COMPREHENSIVE (LOSS) INCOMEOPERATIONS
(in thousands)thousands, except share and per share information)
             
  Years ended December 31, 
  2006  2005  2004 
Net income $10,626  $44,013  $63,081 
Unrealized gain (loss) on derivative financial instruments  1,330   (713)  309 
Less: minority interest — consolidated real estate venture partner’s share of unrealized gain (loss) on derivative financial instruments  (302)      
Settlement of treasury locks        (3,238)
Settlement of forward starting swaps  3,266   240    
Realized gain on derivative financial instruments     450   2,809 
Reclassification of realized (gains)/losses on derivative financial instruments to operations, net  122       
Unrealized gain (loss) on available-for-sale securities  328   (16)  (852)
          
Total other comprehensive income (loss)  4,744   (39)  (972)
          
Comprehensive income $15,370  $43,974  $62,109 
          
             
  Years ended December 31, 
  2007  2006  2005 
Revenue:
            
Rents $562,514  $519,282  $302,530 
Tenant reimbursements  85,404   78,817   48,069 
Termination fees  10,236   7,231   6,083 
Third party management fees, labor reimbursement and leasing  19,691   19,453   3,582 
Other  6,127   5,502   4,171 
          
Total revenue  683,972   630,285   364,435 
             
Operating Expenses:
            
Property operating expenses  189,130   171,924   103,968 
Real estate taxes  64,895   60,808   36,356 
Management expenses  10,361   10,675   1,394 
Depreciation and amortization  242,312   230,710   106,175 
Administrative expenses  28,182   29,644   17,982 
          
Total operating expenses  534,880   503,761   265,875 
          
Operating income
  149,092   126,524   98,560 
Other Income (Expense):
            
Interest income  4,040   9,513   1,370 
Interest expense  (162,675)  (171,177)  (70,380)
Interest expense — Deferred financing costs  (4,496)  (4,607)  (3,540)
Loss on settlement of treasury lock agreements  (3,698)      
Equity in income of real estate ventures  6,955   2,165   3,171 
Net gain on sale of interests in depreciated real estate  40,498       
Net gain on sale of interests in undepreciated real estate  421   14,190   4,640 
Gain on termination of purchase contract     3,147    
          
Income (loss) before minority interest
  30,137   (20,245)  33,821 
Minority interest — partners’ share of consolidated real estate ventures  (465)  270   (154)
          
Income (loss) from continuing operations
  29,672   (19,975)  33,667 
             
Discontinued operations:
            
Income from discontinued operations  3,184   12,597   8,150 
Net gain on disposition of discontinued operations  25,743   20,243   2,196 
Minority interest — partners’ share of consolidated real estate ventures     (2,239)   
          
Income from discontinued operations  28,927   30,601   10,346 
          
Net income
  58,599   10,626   44,013 
Income allocated to Preferred Units  (7,992)  (7,992)  (7,992)
          
Income allocated to Common Partnership Units
 $50,607  $2,634  $36,021 
          
             
Basic earnings per Common Partnership Units:
            
Continuing operations $0.24  $(0.30) $0.44 
Discontinued operations  0.32   0.33   0.18 
          
  $0.56  $0.03  $0.62 
          
             
Diluted earnings per Common Partnership Units:
            
Continuing operations $0.24  $(0.30) $0.44 
Discontinued operations  0.32   0.32   0.18 
          
  $0.55  $0.03  $0.62 
          
             
Basic weighted average common partnership units outstanding
  91,170,209   93,703,601   57,852,842 
             
Diluted weighted average common partnership units outstanding
  91,219,337   94,222,125   58,111,162 
The accompanying notes are an integral part of these consolidated financial statements.

F - 51


BRANDYWINE OPERATING PARTNERSHIP, L.P.
CONSOLIDATED STATEMENTSTATEMENTS OF PARTNERS’ EQUITYOTHER COMPREHENSIVE (LOSS) INCOME
(in thousands, except Units)thousands)
                                         
  Series A Preferred Mirror  Series D Preferred Mirror  Series E Preferred Mirror          Accumulated Other  Total 
  Units  Units  Units  General Partner Capital  Comprehensive  Partner’s 
  Units  Amount  Units  Amount  Units  Amount  Units  Amount  Income  Equity 
Balance, December 31, 2003
  750,000   37,500   2,000,000   47,912         41,040,710   677,033   (2,158)  760,287 
Net income                       63,081      63,081 
Net income allocable to redeemable partnership units                       (1,943)     (1,943)
Other comprehensive income:                          (972)  (972)
Vesting of restricted units                    90,597   1,697      1,697 
Issuance of preferred mirror units              2,300,000   55,538            55,538 
Conversion of preferred mirror units  (750,000)  (37,500)              1,339,286   37,500       
Redemption of preferred units                       4,500      4,500 
Issuance of general partnership units                    12,235,000   336,683      336,683 
Exercise of warrants/options to purchase general partnership units                    587,159   14,545      14,545 
Repayment of employee stock loans                       1,112      1,112 
Amortization of stock options                       102      102 
Adjustment of redeemable partnership units to liquidation value at period end                       (5,967)     (5,967)
Distributions to Preferred Mirror Units                       (9,720)     (9,720)
Distributions to Preferred Units                       (835)     (835)
Distributions to general partnership unit holder                       (88,644)     (88,644)
                               
                                         
Balance, December 31, 2004
        2,000,000   47,912   2,300,000   55,538   55,292,752   1,029,144   (3,130)  1,129,464 
Net income                       44,013      44,013 
Net income allocable to redeemable partnership units                       (276)     (276)
Other comprehensive income:                          (39)  (39)
Conversion of LP units to common shares                    107,692   2,584      2,584 
Vesting of restricted units                    72,950   1,630      1,630 
Exercise of warrants/options to purchase general partnership units                    705,681   18,999      18,999 
Repayment of employee stock loans                       50      50 
Adjustment of redeemable partnership units to liquidation value at period end                       190      190 
Distributions to Preferred Mirror Units                       (7,992)     (7,992)
Distributions to general partnership unit holder                       (100,145)     (100,145)
                               
                                         
Balance, December 31, 2005
        2,000,000   47,912   2,300,000   55,538   56,179,075   988,197   (3,169)  1,088,478 
Net income                       10,626      10,626 
Repurchase of common partnership units                    (3,009,200)  (94,473)     (94,473)
Other comprehensive income:                          4,744   4,744 
Conversion of LP units to common shares                    14,700   488      488 
Issuance of common partnership units                    34,542,151   1,022,173      1,022,173 
Vesting of restricted units                    81,142   1,887      1,887 
Issuance of trustee/bonus shares                    3,257   90      90 
Exercise of warrants/options to purchase general partnership units                    515,916   11,413      11,413 
Repayment of employee stock loans                       371      371 
Adjustment of redeemable partnership units to liquidation value at period end                       (25,913)     (25,913)
Distributions to Preferred Mirror Units                       (7,992)     (7,992)
Distributions to general partnership unit holder                       (156,122)     (156,122)
                               
                                         
Balance, December 31, 2006
    $   2,000,000  $47,912   2,300,000  $55,538   88,327,041  $1,750,745  $1,575  $1,855,770 
                               
             
  Years ended December 31, 
  2007  2006  2005 
Net income $58,599  $10,626  $44,013 
             
Other comprehensive income:            
Unrealized gain (loss) on derivative financial instruments  (3,600)  1,330   (713)
Less: minority interest — consolidated real estate venture partner’s share of unrealized gain (loss) on derivative financial instruments     (302)   
Settlement of treasury locks  (3,860)      
Settlement of forward starting swaps  1,148   3,266   240 
Reclassification of realized (gains)/losses on derivative financial instruments to operations, net  3,436   122   450 
Unrealized gain (loss) on available-for-sale securities  (585)  328   (16)
          
Total other comprehensive income (loss)  (3,461)  4,744   (39)
          
Comprehensive income $55,138  $15,370  $43,974 
          
The accompanying notes are an integral part of these consolidated financial statements.

F - 52


BRANDYWINE OPERATING PARTNERSHIP, L.P.
CONSOLIDATED STATEMENTSSTATEMENT OF CASH FLOWSPARTNERS’ EQUITY
(in thousands)thousands, except Units)
             
  Years ended December 31, 
  2006  2005  2004 
Cash flows from operating activities:
            
Net income (loss) $10,626  $44,013  $63,081 
Adjustments to reconcile net income (loss) to net cash from operating activities:            
Depreciation  186,454   84,561   64,175 
Amortization:            
Deferred financing costs  4,607   3,721   5,088 
Deferred leasing costs  12,258   8,895   7,841 
Acquired above (below) market leases, net  (9,034)  (1,542)  (406)
Acquired lease intangibles  66,317   18,573   8,112 
Deferred compensation costs  3,447   2,764   2,114 
Straight-line rent  (31,326)  (14,952)  (6,023)
Provision for doubtful accounts  3,510   792   467 
Real estate venture income in excess of distributions  (15)  (769)  (293)
Net gain on sale of interests in real estate  (34,433)  (6,820)  (6,111)
Gain on termination of purchase contract  (3,147)      
Minority interest  1,969   154   (205)
Changes in assets and liabilities:            
Accounts receivable  1,365   (598)  (1,769)
Other assets  (4,855)  (11,810)  9,840 
Accounts payable and accrued expenses  (1,154)  (2,407)  3,199 
Tenant security deposits and deferred rents  29,209   (40)  3,750 
Other liabilities  5,768   612   30 
          
Net cash from operating activities  241,566   125,147   152,890 
Cash flows from investing activities:
            
Acquisition of Prentiss  (935,856)      
Acquisition of properties  (231,244)  (92,674)  (569,343)
Sales of properties, net  347,652   29,428   22,283 
Proceeds from termination of purchase contract  3,147       
Capital expenditures  (242,516)  (177,035)  (131,998)
Investment in marketable securities  181,556   423    
Investment in unconsolidated Real Estate Ventures  (753)  (269)  (233)
Restrcited cash  (2,981)  (518)  (1,320)
Cash distributions from unconsolidated Real Estate Ventures in excess of equity in income  3,762   462   1,402 
Increase in cash due to consolidation of variable interest entities        426 
Proceeds from repayment of mortgage note receivable        6,470 
Leasing costs  (38,561)  (12,234)  (10,339)
          
Net cash from investing activities  (915,794)  (252,417)  (682,652)
Cash flows from financing activities:
            
Proceeds from Credit Facility borrowings  726,000   372,142   570,000 
Repayments of Credit Facility borrowings  (756,000)  (434,142)  (723,000)
Proceeds from mortgage notes payable  20,520       
Repayments of secured debt  (213,338)  (23,457)  (50,165)
Proceeds from term loan  750,000      433,000 
Repayments of term loan  (750,000)     (533,000)
Proceeds from unsecured notes  1,193,217   299,976   636,398 
Proceeds from forward starting swap termination  3,266       
Repayments on employee stock loans  371   50   1,112 
Proceeds from issuance of units, net        406,767 
Debt financing costs  (14,319)  (4,026)  (13,580)
Exercise of stock options  11,414   18,999    
Repurchases of common partnership and minority interest units  (94,472)  (239)  (95,436)
Distributions paid to preferred and common partnership unitholders  (175,947)  (106,608)  (90,457)
Distributions to minority interest holders — consolidated real estate ventures  (8,279)  (3,597)  (5,083)
          
Net cash from financing activities  692,433   119,098   536,556 
          
Increase (decrease) in cash and cash equivalents  18,205   (8,172)  6,794 
Cash and cash equivalents at beginning of period  7,174   15,346   8,552 
          
Cash and cash equivalents at end of period $25,379  $7,174  $15,346 
          
Supplemental disclosure:            
Cash paid for interest, net of capitalized interest $154,258  $53,450  $43,281 
Supplemental disclosure of non-cash activity:            
Common shares issued in the Prentiss acquisition  1,022,173       
Operating Partnership units issued in Prentiss acquisitions  64,103       
Operating Partnership units issued in property acquisitions  13,819      10,000     
Debt assumed in property acquisitions  532,607       79,330    
Debt, minority interest and other liabilities, net assumed in the Prentiss acquisition  679,520       
                                         
  Series A Preferred Mirror  Series D Preferred Mirror  Series E Preferred Mirror          Accumulated Other  Total 
  Units  Units  Units  General Partner Capital  Comprehensive  Partner’s 
  Units  Amount  Units  Amount  Units  Amount  Units  Amount  Income  Equity 
Balance, December 31, 2004
        2,000,000   47,912   2,300,000   55,538   55,292,752   1,029,144   (3,130)  1,129,464 
Net income                       44,013      44,013 
Net income allocable to redeemable partnership units                       (276)     (276)
Other comprehensive income:                          (39)  (39)
Conversion of LP units to common shares                    107,692   2,584      2,584 
Vesting of restricted units                    72,950   1,630      1,630 
Exercise of warrants/options to purchase general partnership units                    705,681   18,999      18,999 
Repayment of employee stock loans                       50      50 
Adjustment of redeemable partnership units to liquidation value at period end                       190      190 
Distributions to Preferred Mirror Units                       (7,992)     (7,992)
Distributions to general partnership unit holder                       (100,145)     (100,145)
                               
                                         
Balance, December 31, 2005
        2,000,000   47,912   2,300,000   55,538   56,179,075   988,197   (3,169)  1,088,478 
Net income                       10,626      10,626 
Repurchase of common partnership units                    (3,009,200)  (94,473)     (94,473)
Other comprehensive income:                          4,745   4,745 
Conversion of LP units to common shares                    14,700   488      488 
Issuance of common partnership units                    34,542,151   1,022,173      1,022,173 
Vesting of restricted units                    81,142   1,887      1,887 
Issuance of trustee/bonus shares                    3,257   90      90 
Exercise of warrants/options to purchase general partnership units                    515,916   11,413      11,413 
Repayment of employee stock loans                       371      371 
Adjustment of redeemable partnership units to liquidation value at period end                       (25,913)     (25,913)
Distributions to Preferred Mirror Units                       (7,992)     (7,992)
Distributions to general partnership unit holder                       (156,122)     (156,122)
                               
                                         
                                        
Balance, December 31, 2006
        2,000,000   47,912   2,300,000   55,538   88,327,041   1,750,745   1,576   1,855,771 
Net income                       58,599      58,599 
Repurchase of common partnership units in treasury and for deferred comp plan                    (1,780,600)  (59,426)     (59,426)
Common partnership units used for deferred comp plan                    172,565   5,684      5,684 
Other comprehensive income:                          (3,461)  (3,461)
Conversion of LP units to common shares                    21,951   716      716 
Issuance of common partnership units                              
Vesting of restricted units                    66,086   2,097      2,097 
Issuance of trustee/bonus shares                    1,664   55      55 
Exercise of warrants/options to purchase general partnership units                    206,893   8,113      8,113 
Minority interest reclassification                       (2,828)     (2,828)
Repayment of employee stock loans                              
Adjustment of redeemable partnership units to liquidation value at period end                       55,306      55,306 
Distributions to Preferred Mirror Units                       (7,992)     (7,992)
Distributions to general partnership unit holder                       (154,099)     (154,099)
                               
                                         
Balance, December 31, 2007
    $   2,000,000  $47,912   2,300,000  $55,538   87,015,600  $1,656,970  $(1,885) $1,758,535 
                               
The accompanying notes are an integral part of these consolidated financial statements.

F - 53


BRANDYWINE OPERATING PARTNERSHIP, L.P.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
             
  Years ended December 31, 
  2007  2006  2005 
Cash flows from operating activities:
            
Net income $58,599  $10,626  $44,013 
Adjustments to reconcile net income to net cash from operating activities:            
Depreciation  179,724   186,454   84,561 
Amortization:            
Deferred financing costs  4,497   4,607   3,721 
Deferred leasing costs  15,672   12,258   8,895 
Acquired above (below) market leases, net  (12,225)  (9,034)  (1,542)
Acquired lease intangibles  51,669   66,317   18,573 
Deferred compensation costs  4,672   3,447   2,764 
Straight-line rent  (28,304)  (31,326)  (14,952)
Provision for doubtful accounts  3,147   3,510   792 
Real estate venture income in excess of distributions  (55)  (15)  (769)
Net gain on sale of interests in real estate  (66,662)  (34,433)  (6,820)
Gain on termination of purchase contract     (3,147)   
Minority interest  465   1,969   154 
Changes in assets and liabilities:            
Accounts receivable  6,448   1,365   (598)
Other assets  (6,268)  (4,855)  (11,810)
Accounts payable and accrued expenses  (10,524)  (1,154)  (2,407)
Tenant security deposits and deferred rents  12,634   29,209   (40)
Other liabilities  6,328   5,768   612 
          
Net cash from operating activities  219,817   241,566   125,147 
             
Cash flows from investing activities:
            
Acquisition of Prentiss     (935,856)   
Acquisition of properties  (88,890)  (231,244)  (92,674)
Acquisition of minority interest in consolidated real estate venture  (63,732)      
Sales of properties, net  472,590   347,652   29,428 
Proceeds from termination of purchase contract     3,147    
Capital expenditures  (267,103)  (242,516)  (177,035)
Investment in marketable securities     181,556   423 
Investment in unconsolidated Real Estate Ventures  (897)  (753)  (269)
Restrcited cash  4,898   (2,981)  (518)
Cash distributions from unconsolidated Real Estate Ventures in excess of equity in income  3,711   3,762   462 
Leasing costs  (16,104)  (38,561)  (12,234)
          
Net cash from (used in) investing activities  44,473   (915,794)  (252,417)
             
Cash flows from financing activities:
            
Proceeds from Credit Facility borrowings  959,602   726,000   372,142 
Repayments of Credit Facility borrowings  (888,875)  (756,000)  (434,142)
Proceeds from mortgage notes payable     20,520    
Repayments of mortgage notes payable  (272,027)  (213,338)  (23,457)
Proceeds from term loan  150,000   750,000    
Repayments of term loan     (750,000)   
Proceeds from unsecured notes  300,000   1,193,217   299,976 
Repayments of unsecured notes  (299,925)      
Net settlement of hedge transactions  (2,712)  3,266    
Repayments on employee stock loans     371   50 
Debt financing costs  (4,474)  (14,319)  (4,026)
Exercise of stock options  6,011   11,414   18,999 
Repurchases of common partnership and minority interest units  (59,426)  (94,472)  (239)
Distributions paid to preferred and common partnership unitholders  (172,243)  (175,947)  (110,205)
Distributions to minority interest holders — consolidated real estate ventures     (8,279)   
          
Net cash (used in) from financing activities  (284,069)  692,433   119,098 
          
Increase (decrease) in cash and cash equivalents  (19,779)  18,205   (8,172)
Cash and cash equivalents at beginning of period  25,379   7,174   15,346 
          
Cash and cash equivalents at end of period $5,600  $25,379  $7,174 
          
             
Supplemental disclosure:            
Cash paid for interest, net of capitalized interest $182,790  $154,258  $53,450 
Supplemental disclosure of non-cash activity:            
Common shares issued in the Prentiss acquisition     1,022,173    
Operating Partnership units issued in Prentiss acquisition     64,103    
Operating Partnership units issued in propety acquistions     13,819    
Debt, minority interest and other liabilities, net assumed in the Prentiss acquisition     679,520    
The accompanying notes are an integral part of these consolidated financial statements.

F - 54


BRANDYWINE OPERATING PARTNERSHIP, L.P.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

DECEMBER 31, 2007, 2006 2005 AND 20042005
1.ORGANIZATION AND NATURE OF OPERATIONS
Brandywine Operating Partnership, L.P. (referred to herein as “we”, “us” or the “Partnership’) is the entity through which Brandywine Realty Trust, a Maryland real estate investment trust (the “Company”), a self-administered and self-managed real estate investment trust, conducts its business and own its assets. The Partnership’s activities include acquiring, developing, redeveloping, leasing and managing office and industrial properties. The Company’s common shares of beneficial interest are publicly traded on the New York Stock Exchange under the ticker symbol “BDN”.
As of December 31, 2006,2007, the Partnership owned 261216 office properties, 23 industrial facilities and one mixed-use property (collectively, the “Properties”) containing an aggregate of approximately 28.224.9 million net rentable square feet. The Partnership also has sixseven properties under development threeand seven properties under redevelopment and four lease-up properties containing an aggregate 2.13.7 million net rentable square feet. As of December 31, 2006,2007, the Partnership consolidates three office properties owned by real estate ventures containing 0.4 million net rentable square feet. Therefore, the Partnership owns and consolidates 257 properties with an aggregate of 29.0 million net rentable square feet. As of December 31, 2007, the Partnership owned economic interests in 1114 unconsolidated real estate ventures that contain approximately 2.7 million net rentable square feet and in four consolidated real estate ventures that own 15 office properties containing approximately 1.54.4 million net rentable square feet (collectively, the “Real Estate Ventures”). In addition, as of December 31, 2006,2007, the Partnership owned approximately 490417 acres of undeveloped land. The Properties and the properties owned by the Real Estate Ventures are located in and surrounding Philadelphia, PA, Wilmington, DE, Southern and Central New Jersey, Richmond, VA, Metropolitan Washington, D.C., Dallas/Fort Worth, Austin, TX and Oakland San Diego and Los Angeles.Rancho Bermardo, CA. In addition to managing properties that the Partnership owns, as of December 31, 2006,2007, the Partnership was managing approximately 11.014.5 million net rentable square feet of office and industrial properties for third parties.
All references to building square footage, acres, occupancy percentage and the number of buildings are unaudited.
As more fully described in Note 3, on January 5, 2006, the Company acquired Prentiss PropertiesBrandywine Realty Trust (“Prentiss”) pursuant to an agreement and plan of merger that the Company entered into with Prentiss on October 3, 2005.
The Company is the sole general partner of the Operating Partnership and, as of December 31, 2006,2007, owned a 95.7%95.8% interest in the Operating Partnership. The Partnership conducts its third-party real estate management services business primarily through fourfive management companies (collectively, the “Management Companies”): Brandywine Realty Services Corporation (“BRSCO”), BTRS, Inc., (“BTRS”), Brandywine Properties I Limited, Inc. (“BPI”), BDN Brokerage LLC (“BBL”) and Brandywine Properties Management, L.P. (“BPM”). Each of BRSCO, BTRS and BPI is a taxable REIT subsidiaries.subsidiary. The Operating Partnership owns, a 95% interest indirectly and indirectly, currently 100% of each of BRSCO, BTRS, BPI, BBL and BPM.
Prior to December 2007, 5% of BRSCO, one of the remaining 5% interest isconsolidated management services companies, was owned by a partnership comprised of a current executive and former executive of the Company, each of whom is a member of the Company’sComapny’s Board of Trustees. TheIn December 2007, the operating Partnership owns, directlybought out this interest for a nominal amount and indirectly, 100% of each of BTRS, BPI and BPM.BRSCO is now wholly owned.
As of December 31, 2006,2007, the Management Companies were managing properties containing an aggregate of approximately 42.343.0 million net rentable square feet, of which approximately 28.228.5 million net rentable square feet related to Properties owned by the Partnership and approximately 13.014.5 million net rentable square feet related to properties owned by third parties and Real Estate Ventures.
As more fully described in Note 3, on January 5, 2006, the Partnership acquired Prentiss Properties Trust (“Prentiss”) pursuant to an Agreement and Plan of Merger (the “Merger Agreement”) that the Partnership entered into with Prentiss on October 3, 2005.

F - 55


2.SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Principles of Consolidation
When the Partnership obtains an economic interest in an entity, the Partnership evaluates the entity to determine if the entity is deemed a variable interest entity (“VIE”), and if the Partnership is deemed to be

F - 54


the primary beneficiary, in accordance with FASB Interpretation No. 46R, “Consolidation of Variable Interest Entities” (“FIN 46R”).  When an entity is not deemed to be a VIE, the Partnership considers the provisions of EITF 04-05, “Determining Whether a General Partner, or the General Partners as a Group, Controls a Limited Partnership or Similar Entity When the Limited Partners Have Certain Rights” (“EITF 04-05”). The Partnership consolidates (i) entities that are VIEs and of which the Partnership is deemed to be the primary beneficiary and (ii) entities that are non-VIEs which the Partnership controls and the limited partners do not have either the ability to dissolve the entity or remove the Partnership without cause ornor substantive participating rights.  Entities that the Partnership accounts for under the equity method (i.e. at cost, increased or decreased by the Partnership’s share of earnings or losses, plus contributions, less distributions) include (i) entities that are VIEs and of which the Partnership is not deemed to be the primary beneficiary (ii) entities that are non-VIEs which the Partnership does not control, but over which the Partnership has the ability to exercise significant influence and (iii) entities that are non-VIE’s that the Partnership controls through its general partner status, but the limited partners in the entity have the substantive ability to dissolve the entity or remove the Partnership without cause or have substantive participating rights.  The Partnership will reconsider its determination of whether an entity is a VIE and who the primary beneficiary is, and whether or not the limited partners in an entity have substantive rights, if certain events occur that are likely to cause a change in the original determinations. The portion of these entities not owned by the Partnership is presented as minority interest as of and during the periods consolidated. All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Management makes significant estimates regarding revenue, impairment of long-lived assets, allowance for doubtful accounts and deferred costs.
Operating Properties
Operating properties are carried at historical cost less accumulated depreciation and impairment losses. The cost of operating properties reflects their purchase price or development cost. Costs incurred for the acquisition and renovation of an operating property are capitalized to the Partnership’s investment in that property. Ordinary repairs and maintenance are expensed as incurred; major replacements and betterments, which improve or extend the life of the asset, are capitalized and depreciated over their estimated useful lives. Fully-depreciated assets are removed from the accounts.
Purchase Price Allocation
The Partnership allocates the purchase price of properties to net tangible and identified intangible assets acquired based on fair values. Above-market and below-market in-place lease values for acquired properties are recorded based on the present value (using an interest rate which reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) the Partnership’s estimate of the fair market lease rates for the corresponding in-place leases, measured over a period equal to the remaining non-cancelable term of the lease. Capitalized above-market lease values are amortized as a reduction of rental income over the remaining non-cancelable terms of the respective leases. Capitalized below-market lease values are amortized as an increase to rental income over the remaining non-cancelable terms of the respective leases, including any below market fixed-rate renewal periods.

F - 56


Other intangible assets also include amounts representing the value of tenant relationships and in-place leases based on the Partnership’s evaluation of the specific characteristics of each tenant’s lease and the Partnership’s overall relationship with the respective tenant. The Partnership estimates the cost to execute leases with terms similar to the remaining lease terms of the in-place leases, including leasing commissions, legal and other related expenses. This intangible asset is amortized to expense over the remaining term of the respective leases. Partnership estimates of value are made using methods similar to those used by independent appraisers or by using independent appraisals. Factors considered by the Partnership in this analysis include an estimate of the carrying costs during the expected lease-up periods considering current market conditions and costs to execute similar leases. In estimating carrying costs, the Partnership includes

F - 55


real estate taxes, insurance and other operating expenses and estimates of lost rentals at market rates during the expected lease-up periods, which primarily range from three to twelve months. The Partnership also considers information obtained about each property as a result of its pre-acquisition due diligence, marketing and leasing activities in estimating the fair value of the tangible and intangible assets acquired. The Partnership also uses the information obtained as a result of its pre-acquisition due diligence as part of its consideration of FIN 47,Accounting for Conditional Asset Retirement Obligation (“FIN 47”) and when necessary, will record a conditional asset retirement obligation as part of its purchase price.
Characteristics considered by the Partnership in allocating value to its tenant relationships include the nature and extent of the Partnership’s business relationship with the tenant, growth prospects for developing new business with the tenant, the tenant’s credit quality and expectations of lease renewals, among other factors. The value of tenant relationship intangibles is amortized over the remaining initial lease term and expected renewals, but in no event longer than the remaining depreciable life of the building. The value of in-place leases is amortized over the remaining non-cancelable term of the respective leases and any fixed-rate renewal periods.
In the event that a tenant terminates its lease, the unamortized portion of each intangible, including market rate adjustments (above or below), in-place lease values and tenant relationship values, would be charged to expense.expense and market rate adjustments would be recorded to revenue.
Depreciation and Amortization
The costs of buildings and improvements are depreciated using the straight-line method based on the following useful lives: buildings and improvements (five to 55 years) and tenant improvements (the shorter of the lease term or the life of the asset).
Construction in Progress
Project costs directly associated with the development and construction of a real estate project are capitalized as construction in progress. In addition, interest, real estate taxes and general and administrativeother expenses that are directly associated with the Partnership’s development activities are capitalized until the property is placed in service. Internal direct construction costs totaling $4.8 million in 2007, $4.9 million in 2006 and $3.4 million in 2005 and $3.0interest totaling $17.5 million in 2004 and interest totaling2007, $9.5 million in 2006 and $9.6 million in 2005 and $3.0 million in 2004 were capitalized related to development of certain Properties and land holdings.
Impairment of Long-Lived Assets
Statement of Financial Accounting Standard No. 144 (“SFAS 144”),Accounting for the Impairment or Disposal of Long-Lived Assets, provides a single accounting model for long-lived assets as held-for-sale, broadens the scope of businesses to be disposed of that qualify for reporting as discontinued operations and changes the timing of recognizing losses on such operations.
In accordance with SFAS 144, long-lived assets, such as real estate investments and purchased intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset group may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future

F - 57


cash flows, an impairment charge is recognized by the amount by which the carrying amount of the asset exceeds the fair value of the asset. Assets to be disposed of are separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. The other assets and liabilities related to assets classified as held-for-sale are presented separately in the consolidated balance sheet. The Partnership had no properties classified as held for sale at December 31, 2007. As of December 31, 2006, the Partnership had two properties classified as held for sale. The Partnership had no properties classified as held for sale at December 31, 2005.
Cash and Cash Equivalents
Cash and cash equivalents are highly-liquid investments with original maturities of three months or less. The Partnership maintains cash equivalents in financial institutions in excess of insured limits, but believes this risk is mitigated by only investing in or through major financial institutions.

F - 56


Restricted Cash
Restricted cash consists of cash held as collateral to provide credit enhancement for the Partnership’s mortgage debt, cash for property taxes, capital expenditures and tenant improvements. Restricted cash is included in other assets discussed below.
Accounts Receivable
Leases with tenants are accounted for as operating leases. Minimum annual rentals under tenant leases are recognized on a straight-line basis over the term of the related lease. The cumulative difference between lease revenue recognized under the straight-line method and contractual lease payment terms is recorded as “accrued rent receivable, net” on the accompanying balance sheets. Included in current tenant receivables are tenant reimbursements which are comprised of amounts recoverable from tenants for common area maintenance expenses and certain other recoverable expenses that are recognized as revenue in the period in which the related expenses are incurred. As of December 31, 2007, no tenant represented more than 10% of accounts receivable. As of December 31, 2006, one tenant represented approximately 17% of accounts receivable, a significant portion of which is for reimbursements in connection with a tenant improvement project. As of December 31, 2005, no tenant represented more than 10% of accounts receivable.
Tenant receivables and accrued rent receivables are carried net of the allowances for doubtful accounts of $3.8 million and $6.4 million in 2007, respectively, and $4.5 million and $4.8 million in 2006, respectively and $1.9 million and $3.0 million in 2005, respectively. The allowance is an estimate based on two calculations that are combined to determine the total amount reserved. First, the Partnership evaluates specific accounts where it has determined that a tenant may have an inability to meet its financial obligations. In these situations, the Partnership uses its judgment, based on the facts and circumstances, and records a specific reserve for that tenant against amounts due to reduce the receivable to the amount that the Partnership expects to collect. These reserves are reevaluated and adjusted as additional information becomes available. Second, a reserve is established for all tenants based on a range of percentages applied to receivable aging categories. These percentages are based on historical collection and write-off experience. If the financial condition of the Partnership’s tenants were to deteriorate, additional allowances may be required.
Investments in Unconsolidated Real Estate Ventures
The Partnership accounts for its investments in unconsolidated Real Estate Ventures under the equity method of accounting as it is not the primary beneficiary (for VIEs)VIE’s) and the Partnership exercises significant influence, but does not control these entities under the provisions of the entities’ governing agreements.agreements pursuant to EITF 04-05. These investments are recorded initially at cost, as Investments in Real Estate Ventures, and subsequently adjusted for equity in earnings and cash contributions and distributions.
On a periodic basis, management assesses whether there are any indicators that the value of the Partnership’s investments in unconsolidated Real Estate Ventures may be other than temporarily impaired. An investment is impaired only if the value of the investment, as estimated by management, is less than the

F - 58


carrying value of the investment. To the extent impairment has occurred, the loss isshall be measured as the excess of the carrying amount of the investment over the value of the investment, as estimated by management.
To the extent that the Partnership acquires an interest in or contributes assets to a Real Estate Venture project, the difference between the Partnership’s cost basis in the investment in venture and in the assets, intangibles and liabilities of the Real Estate Venture is amortized over the life of the related assets, intangibles and liabilities and such adjustment is included in the Partnership’s share of equity in income of unconsolidated ventures.
Deferred Costs
Costs incurred in connection with property leasing are capitalized as deferred leasing costs. Deferred leasing costs consist primarily of leasing commissions and internal leasing costs that are amortized on the straight-line method over the life of the respective lease which generally ranges from one to 15 years. Management re-evaluates the remaining useful lives of leasing costs as economic and market conditions change.
Costs incurred in connection with debt financing are capitalized as deferred financing costs and charged to interest expense over the terms of the related debt agreements. Deferred financing costs consist primarily of loan fees which are amortized over the related loan term. Management re-evaluates the remaining useful lives of financing costs as economic and market conditions change.

F - 57


Other Assets
As of December 31, 2007, other assets included prepaid real estate taxes of $8.0 million, prepaid insurance of $5.7 million, marketable securities of $3.2 million, deposits on properties expected to be purchased in 2008 totaling $1.6 million, a tenant allowance totalling $8.0 million, cash surrender value of life insurance of $7.7 million, furniture, fixtures and equipment of $7.2 million, restricted cash of $17.2 million and $16.0 million of other assets. Also included in this balance are a $3.1 million note receivable with a 20 year amortization period for principal and interest (balloon payment in March 2008) that bears interest at 8.5% and an $7.8 million note receivable with a 20 year amortization period for principal and interest (balloon payment in December 2008) that bears interest at 8.5%.
As of December 31, 2006, other assets included a direct financing lease of $14.6 million, prepaid real estate taxes of $9.7 million, prepaid insurance of $4.4 million, marketable securities of $6.8 million, deposits on properties expected to be purchased in 2007 totaling $2.2 million, cash surrender value of life insurance of $11.6 million, furniture, fixtures and equipment of $5.8$6.8 million, restricted cash of $22.6 and $6$18.4 million of other assets. Also included in this balance are a $4.3 million note receivable with a 20 year amortization period for principal and interest (balloon payment in December 2007)March 2008) that bears interest at 7.5%8.5% and an $8.0 million note receivable with a 20 year amortization period for principal and interest (balloon payment in December 2007)2008) that bears interest at 7.5%.
As of December 31, 2005, other assets included a direct financing lease of $15.2 million, prepaid real estate taxes of $8.1 million, deposits on properties to be purchased in 2006 totaling $6.9 million, cash surrender value of life insurance of $8.2 million, furniture, fixtures and equipment of $2.6 million and $4.3 million of other assets. Also included in this balance is a $4.3 million note receivable with a 20 year amortization period for principal and interest (balloon payment in December 2007) that bears interest at 7.5%8.5%.
Revenue Recognition
Rental revenue is recognized on the straight-line basis from the later of the date of the commencement of the lease or the date of acquisition of the property subject to existing leases, which averages minimum rents over the terms of the leases. The cumulative difference between lease revenue recognized under this method and contractual lease payment terms is recorded as “accrued rent receivable” on the accompanying balance sheets. The straight-line rent adjustment increased revenue by approximately $25.0 million in 2007, $31.3 million in 2006 and $15.0 million in 20052005. Deferred rents on the balance sheet represent rental revenue received prior to their due dates and $6.0amounts paid by the tenant for certain improvements considered to be landlord assets that will remain the Partnership’s property at the end of the tenant’s lease term. The amortization of these amounts paid by the tenant for such improvements is calculated on a straight-line basis over the term of the tenant’s lease and is a component of straight-line rental income and increased revenue by $3.3 million in 2004. The leases2007 and $1.3 million in 2006. Leases also typically provide for tenant reimbursement of a portion of common area maintenance and other operating expenses.expenses to the extent

F - 59


that a tenant’s pro rata share of expenses exceeds a base year level set in the lease. Other income is recorded when earned and is primarily comprised of termination fees received from tenants, bankruptcy settlement fees, third party leasing commissions, and third party management fees. During 2007, 2006, 2005, and 2004,2005, the Partnership earned $10.2 million, $7.8 million, $6.1 million, and $1.5$6.1 million in termination fees. In 2004, the Partnership recorded approximately $1.0 million plus accrued interest as other income relating to the settlement of litigation. Additionally, during 2004, the Partnership recorded approximately $0.9 million in other income from the favorable settlement of an accrued liability. Deferred rents represent rental revenue received from tenants prior to their due dates.
No tenant represented greater than 10% of the Partnership’s rental revenue in 2007, 2006 2005 or 2004.2005.
Income Taxes
No federal or state income taxes are payable by the Partnership, and accordingly, no provision for taxes has been made in the accompanying consolidated financial statements. The partners are to include their respective share of the Partnership’s profits or losses in their individual tax returns. The Partnership’s tax returns and the amount of allocable Partnership profits and losses are subject to examination by federal and state taxing authorities. If such examination results in changes to Partnership profits or losses, then the tax liability of the partners would be changed accordingly.
The Partnership has several subsidiary real estate investment trusts (“REITs”) that have elected to be treated as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”). In order to maintain their qualification as a REIT, the REIT subsidiaries are required to, among other things, distribute at least 90% of its REIT taxable income to its stockholders and meet certain tests regarding the nature of its income and assets. The REIT subsidiaries are not subject to federal income tax with respect to the portion of its income that meets certain criteria and is distributed annually to the stockholders. Accordingly, no provision for federal income taxes is included in the accompanying consolidated financial statements with respect to the operations of these operations.entities. The REIT subsidiaries intend to continue to operate in a manner that allows them to continue to meet the requirements for taxation as REITs. Many of these requirements, however, are highly technical and complex. If one of the REIT subsidiaries were to fail to meet these requirements, the REIT subsidiaries would be subject to federal income tax. The Partnership is subject to certain state and local taxes. Provision for such taxes has been included in general and administrative expenses in the Partner’s Consolidated Statements of Operations and Comprehensive Income.
The tax basis in the Partnership’s assets was $4.5 billion as of December 31, 2007 and $4.2 billion as of December 31, 2006 and $1.9 billion as of December 31, 2005.2006.
The Company is subject to a 4% federal excise tax if sufficient taxable income is not distributed within prescribed time limits. The excise tax equals 4% of the annual amount, if any, by which the sum of (a) 85% of the Company’s ordinary income and (b) 95% of the Company’s net capital gain exceeds cash distributions and certain taxes paid by the Company. No excise tax was incurred in 2007, 2006, 2005, or 2004.2005.
The Partnership may elect to treat one or more of its subsidiaries as a taxable REIT subsidiary (“TRS”). In general, a TRS of the Partnership may perform additional services for tenants of the Partnership and generally may engage in any real estate or non-real estate related business (except for the operation or management of health care facilities or lodging facilities or the provision to any person, under a franchise, license or otherwise, of rights to any brand name under which any lodging facility or health care facility is operated). A TRS is subject to corporate federal income tax. The Partnership has elected to treat certain of its corporate subsidiaries as TRSs, these entities provide third party property management services and certain services to tenants that could not otherwise be provided. At December 31, 2006,2007, the Partnership’s TRSs had tax net operating loss (“NOL”) carryforwardcarryforwards of approximately $3.0$2.5 million, expiring from 2013 to 2020.2027. The Partnership has ascribed a full valuation allowance to its net deferred tax assets.

F - 58

The Operating Partnership adopted the provisions of FASB interpretation No. 48,Accounting for Uncertainity in Income Taxes, an Interpretation of FASB Statement No. 109 (“FIN 48”) on January 1, 2007 as a result of the implementation of FIN 48, the Operating Partnership recognized no material adjustments regarding our tax accounting treatment. The Operating Partnership expects to recognize interest and penalties, to the extent incurred related to uncertion tax positions if any, as income tax expense, which would de included in general and administrative expense.


Earnings Per Common Partnership UnitShare
Basic earnings per Common Partnership Unit is calculated by dividing income allocated to Common Partnership UnitsUnit by the weighted-average number of units outstanding during the period. Diluted earnings per Common Partnership Unit includes the effect of common partnership unit equivalents outstanding during the period.

F - 60


Stock-Based Compensation Plans
The Partnership Agreement provides for the issuance by the Partnership to its general partner, the Company, of a number of Common Partnership Units equal to the number of common shares issued by the Company, the net proceeds of which are contributed to the Partnership.  When the Company issues common shares under its equity-based compensation plan, the Partnership issues to the Company an equal number of Common Partnership Units. The Company maintains shareholder-approved equity incentive plans. The Compensation Committee of the Company’s Board of Trustees authorizes awards under these plans. In May 2005,2007, the Company’s shareholders approved an amendment to the Company’s Amended and Restated 1997 Long-Term Incentive Plan (the “1997 Plan”) that increased. The amendment provided for the numbermerger of commonthe Prentiss Properties Trust 2005 Share Incentive Plan (the “Prentiss 2005 Plan”) with and into the 1997 Plan, thereby transferring into the 1997 Plan all of the shares that may be issued or subject toremained available for award under the Prentiss 2005 Plan. The Company had previously assumed the Prentiss 2005 Plan, together with other Prentiss incentive plans, as part of the Company’s January 2006 acquisition of Prentiss Properties Trust (“Prentiss”). The 1997 Plan from 5,000,000 to 6,600,000. The May 2005 amendment provided thatreserves 500,000 of thecommon shares under the 1997 Plan are available solely for awards under options and share appreciation rights that have an exercise or strike price not less thanat least equal to the market price of the common shares on the date of award and the remaining 6,100,000 shares under the 1997 Plan are available for any type of award, under the 1997 Plan.including restricted share and performance share awards and options. Incentive stock options may not be granted atwith an exercise prices lessprice that is lower than fair valuethe market price of the common shares aton the time of grant.grant date. All options awarded by the Company to date are non-qualified stock options that generally vested overhad an initial vesting schedule that ranged from two to fiveten years. As of December 31, 2006, 2.62007, approximately 4.1 million common shares remained available for future award under the 1997 Plan. As part ofPlan (including the Company’s January 2006 acquisition of Prentiss, the Company assumed Prentiss’ three share incentive plans. As of December 31, 2006, approximately 1,700,000 common500,000 shares remainedthat are limited to option awards as described above, and without giving effect to any shares that would become available for issuance or subject to award under the assumed Prentiss share incentive plans; however, any such issuances or awards under the assumed Prentiss plan may be made only to those Company employees who had been employed by Prentiss immediately priorif and to the Company’s acquisition of Prentissextent that outstanding awards lapse, expire or to those Company employees hired after the Prentiss acquisition.are forfeited).
On January 1, 2002, the Partnership began to expense the fair value of stock-based compensation awards granted subsequent to January 1, 2002, over the applicable vesting period as a component of general and administrative expenses in the Partnership’s consolidated Statements of Operations. The Partnership recognized stock-based compensation expense of $4,672,000 in 2007, $3,447,000 in 2006 and $2,764,000 in 2005 and $2,114,000 in 2004.
For stock-based compensation awards granted prior to 2002, the Partnership accounted for stock options issued under the recognition and measurement provisions of APB No. 25,Accounting for Stock Issued to Employees and Related Interpretations. Under this method, no stock-based compensation expense was recognized. Because stock options granted prior to 2002 vested over a three-year term, the resulting compensation cost based on the fair value of the awards on the date of grant, on a pro forma basis, would have been expensed in 2003, 2004, and 2005. Accordingly, had the Partnership applied the fair value recognition provisions of SFAS 123, the net income applicable to common partnership units would remain the same on a pro forma basis in 2006, and would have been reduced by $511,000 and $556,000 in 2005 and 2004, respectively, with no change in basic or diluted net income per share.
Comprehensive Income
Comprehensive income or loss is recorded in accordance with the provisions of SFAS 130 (“SFAS 130”),Reporting Comprehensive Income. SFAS 130 establishes standards for reporting comprehensive income and its components in financial statements. Comprehensive income includes unrealized gains and losses on available-for-sale securities and the effective portions of changes in the fair value of derivatives.
Accounting for Derivative Instruments and Hedging Activities
The Partnership accounts for its derivative instruments and hedging activities under SFAS No. 133 (“SFAS 133”),Accounting for Derivative Instruments and Hedging Activities, and its corresponding amendments under SFAS No. 138,Accounting for Certain Derivative Instruments and Hedging Activities – An Amendment of SFAS 133. SFAS 133 requires the Partnership to measure every derivative instrument

F - 59


(including (including certain derivative instruments embedded in other contracts) at fair value and record them in the balance sheet as either an asset or liability. For derivatives designated as fair value hedges, the changes in fair value of both the derivative instrument and the hedged item are recorded in earnings. For derivatives designated as cash flow hedges, the effective portions of changes in the fair value of the derivative are reported in other comprehensive income. Changes in fair value of derivative instruments and ineffective portions of hedges are recognized in earnings in the current period. During 2007, the Partnership recognized $0.2 million in the statement of operations for the ineffective portion of its cash flow hedges and $3.7 million upon termination of certain of its cash flow hedges. For the year-endedyears ended December 31, 2006 and 2005, the Partnership was not party to any derivative contract designated as a fair value hedge.hedge and there are no ineffective portions of our cash flow hedges. See Note 8.

F - 61


The Partnership actively manages its ratio of fixed-to-floating rate debt. To manage its fixed and floating rate debt in a cost-effective manner, the Partnership, from time to time, enters into interest rate swap agreements as cash flow hedges, under which it agrees to exchange various combinations of fixed and/or variable interest rates based on agreed upon notional amounts. See Note 12.8.
Reclassifications
Certain amounts have been reclassified in prior years to conform to the current year presentation. The reclassifications are primarily due to the treatment of sold properties as discontinued operations on the statement of operations for all periods presented.presented and the reclassification of labor reimbursements received under our third party contracts to a gross presentation.
New Pronouncements
In December 2007, the FASB issued Statement No. 141 (revised 2007),“Business Combinations”(“SFAS 141(R)”), which establishes principles and requirements for how the acquirer shall recognize and measure in its financial statements the identifiable assets acquired, liabilities assumed, any noncontrolling interest in the acquiree and goodwill acquired in a business combination. This statement is effective for business combinations for which the acquisition date is on or after the beginning of the first annual reporting period beginning on or after December 15, 2008. The Partnership is currently assessing the potential impact that the adoption of SFAS 141(R) will have on its financial position and results of operations.
In December 2007, the FASB issued Statement No. 160,“Noncontrolling Interests in Consolidated Financial Statements — an Amendment of ARB No. 51”(“SFAS 160”), which establishes and expands accounting and reporting standards for minority interests, which will be recharacterized as noncontrolling interests, in a subsidiary and the deconsolidation of a subsidiary. SFAS 160 is effective for business combinations for which the acquisition date is on or after the beginning of the first annual reporting period beginning on or after December 15, 2008. This statement is effective for fiscal years beginning on or after December 15, 2008. The Partnership is currently assessing the potential impact that the adoption of SFAS 160 will have on its financial position and results of operations.
In June 2007, the Accounting Standards Executive Committee of the American Institute of Certified Public Accountants (“AICPA”) issued Statement of Position 07-1, “Clarification of the Scope of the Audit and Accounting Guide Investment Companies and Accounting by Parent Companies and Equity Method Investors for Investments in Investment Companies” (“SOP 07-1”). SOP 07-1 addresses when the accounting principles of the AICPA Audit and Accounting Guide “Investment Companies” must be applied by an entity and whether investment company accounting must be retained by a parent company in consolidation or by an investor in the application of the equity method of accounting. In addition, SOP 07-1 includes certain disclosure requirements for parent companies and equity method investors in investment companies that retain investment company accounting in the parent company’s consolidated financial statements or the financial statements of an equity method investor. On February 14, 2008, FSP No. SOP 07-1-1 was issued to delay indefinitely the effective date of SOP 07-1 and prohibit adoption of SOP 07-1 for an entity that has not early adopted SOP 07-1 before issuance of the final FSP. The Partnership is currently evaluating the impact and believes that the adoption of this standard will not have a material effect on its financial position and results of operations.
In February 2007, the FASB issued Statement No. 159, “The Fair Value Option for Financial Assets and Financial Liabilities” (“SFAS 159”), which gives entities the option to measure eligible financial assets, financial liabilities and firm commitments at fair value on an instrument-by-instrument basis, that are otherwise not permitted to be accounted for at fair value under other accounting standards. The election to use the fair value option is available when an entity first recognizes a financial asset or financial liability or upon entering into a firm commitment. Subsequent changes (i.e., unrealized gains and losses) in fair value must be recorded in earnings. Additionally, SFAS 159 allows for a one-time election for existing positions upon adoption, with the transition adjustment recorded to beginning retained earnings. This statement is effective for fiscal years beginning after November 15, 2007. The Partnership is currently assessing the potential impact that the adoption of SFAS 159 will have on its financial position and results of operations.

F - 62


In September 2006, the FASB issued Statement No. 157,Fair Value Measurements(“SFAS No. 157”). SFAS No. 157 provides guidance for using fair value to measure assets and liabilities. This statement clarifies the principle that fair value should be based on the assumptions that market participants would use when pricing the asset or liability. SFAS No. 157 establishes a fair value hierarchy, giving the highest priority to quoted prices in active markets and the lowest priority to unobservable data. SFAS No. 157 applies whenever other standards require assets or liabilities to be measured at fair value. SFAS No. 157 also provides for certain disclosure requirements, including, but not limited to, the valuation techniques used to measure fair value and a discussion of changes in valuation techniques, if any, during the period. This statement is effective in fiscal years beginning after November 15, 2007.2007, except for nonfinancial assets and nonfinancial liabilities that are not recognized or disclosed at fair value on a recurring basis, for which the effective date is fiscal years beginning after November 15, 2008. The Partnership is currently evaluating the impact and believes that the adoption of this standard on January 1, 2008 will not have a material effect on our consolidated financial statements.
In June 2006, the FASB issued Interpretation No. 48,Accounting for Uncertainty in Income Taxes, an Interpretation of FASB Statement No. 109(“FIN 48”). FIN 48 clarifies the accounting for uncertainty in income taxes recognized in a Partnership’s financial statements and prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. FIN 48 also provides guidance on description, classification, interest and penalties, accounting in interim periods, disclosure and transition. FIN 48 became effective on January 1, 2007. The Partnership is currently evaluating the impact of adopting FIN 48.
In October 2005, the FASB issued Staff Position No. 13-1 “Accounting for Rental Costs Incurred during a Construction Period” (“FSP FAS 13-1”). FSP FAS 13-1 addresses the accounting for rental costs associated with operating leases that are incurred during the construction period. FSP FAS 13-1 makes no distinction between the right to use a leased asset during the construction period and the right to use that asset after the construction period. Therefore, rental costs associated with ground or building operating leases that are incurred during a construction period shall be recognized as rental expense, allocated over the lease term in accordance with SFAS No. 13 and Technical Bulletin 85-3. The terms of FSP FAS 13-1 are not applicable to lessees that account for the sale or rental of real estate projects in accordance with SFAS No. 67, “Accounting for Costs and Initial Rental Operations of Real Estate Projects.” FSP FAS 13-1 was effective for the first reporting period beginning after December 15, 2005. Retrospective application in accordance with SFAS 154 is permitted but not required. The adoption of FSP FAS 13-1 did not have a material effect on the consolidated financial statements of the Partnership.
In May 2005, the FASB issued SFAS No. 154, “Accounting Changes and Error Corrections” (“SFAS 154”). SFAS 154 replaces APB No. 20, “Accounting Changes” and SFAS No. 3, “Reporting Accounting Changes in Interim Financial Statements” and establishes retrospective application as the required method for reporting a change in accounting principle. SFAS 154 provides guidance for determining whether a retrospective application of a change in accounting principle is impracticable and for reporting a change when retrospective application is impracticable. SFAS 154 is effective for accounting changes and corrections of errors made in fiscal years beginning after December 15, 2005. The Partnership adopted SFAS 154 on January 1, 2006 and this adoption had no effect on the Partnership’sits financial position and results of operations.

F - 60


In March 2005, the FASB issued FIN 47,Accounting for Conditional Asset Retirement Obligations, an interpretation of FASB Statement No. 143,Asset Retirement Obligations. FIN 47 provides clarification of the term “conditional asset retirement obligation” as used in SFAS 143, defined as a legal obligation to perform an asset retirement activity in which the timing and/or method of settlement are conditional on a future event that may or may not be within the control of the Partnership. Under this standard, the Partnership must record a liability for a conditional asset retirement obligation if the fair value of the obligation can be reasonably estimated. The Partnership adopted FIN 47 as required effective December 31, 2005 and the initial application of FIN 47 did not have a material effect on the consolidated financial statements of the Partnership.
3.REAL ESTATE INVESTMENTS
As of December 31, 20062007 and 2005,2006, the gross carrying value of the Partnership’s propertiesProperties was as follows:
                    
 December 31,  December 31, 
 2006 2005  2007 2006 
 (amounts in thousands)  (amounts in thousands) 
Land $756,400 $456,736  $727,979 $756,400 
Building and improvements 3,807,040 1,951,252  3,672,638 3,807,040 
Tenant improvements 363,865 152,073  412,946 363,865 
          
 $4,927,305 $2,560,061  $4,813,563 $4,927,305 
          
Acquisitions and Dispositions
The Partnership’s acquisitions were accounted for by the purchase method. The results of each acquired property are included in the Partnership’s results of operations from their respective purchase dates.
2007
DRA Joint Venture
On December 19, 2007, the Company formed G&I Interchange Office LLC, a new joint venture (the “Venture”) with G&I VI Investment Interchange Office LLC (“G&I VI”), an investment vehicle advised by DRA Advisors LLC. The Venture included interest in 29 office properties which were located in various counties in Pennsylvania, containing an aggregate of 1,616,227 net rentable square feet. The Company transferred or contributed 100% interests in 26 properties and transferred to the Venture an 89% interest in three of the properties with the remaining 11% interest in the three properties subject to a put/call at fixed prices after three years. In connection with the formation, the Company effectively sold an 80% interest in the venture to G&I IV for cash and the venture borrowed approximately $184.0 million in third party financing the aggregate proceeds of which were distributed to the Company. The Company used the net proceeds of these transactions of approximately $230.9 million that it received in this transaction to reduce outstanding indebtedness under the Company’s unsecured revolving credit facility.
The company was hired by the Venture to perform property management and leasing services. The joint venture agreements provide for certain control rights and participation as a joint venture partner and, based on an evaluation of control rights, the Company will not consolidate the venture subsequent to its formation.
In connection with these transactions, the Company recorded a gain as a partial sale of $40.5 million. The Company’s continuing involvement with the properties through its joint venture interest and management fees and leasing commissions represents a significant continuing involvement in the properties. Accordingly, under EITF 03-13, “Applying the Conditions in Paragraph 42 of FASB Statement No. 144 in

F - 63


Determining Whether to Report Discontinued Operations”, the Company has determined that the gain on sale and the operations of the properties should not be included in discontinued operations.
Other 2007 Acquisitions and Dispositions
On November 30, 2007, the Partnership sold 111/113 Pencader Drive, an office property located in Newark, Delaware containing 52,665 net rentable square feet, for a sales price of $5.1 million.
On November 15, 2007, the Partnership sold 2490 Boulevard of the Generals, an office property located in West Norriton, Pennsylvania containing 20,600 net rentable square feet, for a sales price of $1.5 million.
On September 7, 2007, the Partnership sold Iron Run Land, seven land parcels located in Lehigh County, Pennsylvania containing an aggregate 51.5 acres of land, for an aggregate sales price of $6.6 million.
On July 19, 2007, the Partnership acquired the United States Post Office building, an office property located in Philadelphia, Pennsylvania containing 862,692 net rentable square feet, for an aggregate purchase price of $28.0 million. The Partnership intends to redevelop the building into office space for the Internal Revenue Service (“IRS”). As part of this acquisition, the Partnership also acquired a 90 year ground lease interest in an adjacent parcel of ground of approximately 2.54 acres, commonly referred to as the “postal annex”. The Partnership intends to demolish the existing structure located on the postal annex and to rebuild a parking facility containing approximately 733,000 square feet that will primarily be used by the IRS employees upon their move into the planned office space at the Post Office building. The remaining postal annex ground leased parcels can also accommodate additional office, retail, hotel and residential development and the Partnership is currently in the planning stage with respect to these parcels and is seeking specific zoning authorization related thereto.
On July 19, 2007, the Partnership acquired five office properties containing 508,607 net rentable square feet and a 4.9 acre land parcel in the Boulders office park in Richmond, Virginia for an aggregate purchase price of $96.3 million. The Partnership funded $36.6 million of the purchase price using the remaining proceeds from the sale of the 10 office properties located in Reading and Harrisburg, Pennsylvania in March 2007.
On May 10, 2007, the Partnership acquired Lake Merritt Tower, an office property located in Oakland, California containing 204,278 net rentable square feet for an aggregate purchase price of $72.0 million. A portion of the proceeds from the sale of the 10 office properties located in Reading and Harrisburg, Pennsylvania in March 2007 was used to fully fund this purchase.
On April 30, 2007, the Partnership sold Cityplace Center, an office property located in Dallas, Texas containing 1,295,832 net rentable square feet, for a sales price of $115.0 million.
On March 30, 2007, the Partnership sold 10 office properties located in Reading and Harrisburg, Pennsylvania containing 940,486 net rentable square feet, for an aggregate sales price of $112.0 million. The Partnership structured this transaction to qualify as a like-kind exchange under Section 1031 of the Internal Revenue Code and the cash from the sale was held by a qualified intermediary for purposes of accomplishing the like-kind exchange as noted in the above transactions.
On March 30, 2007, the Partnership sold 1007 Laurel Oak, an office property located in Voorhees, New Jersey containing 78,205 net rentable square feet, for a sales price of $7.0 million.
On March 1, 2007, the Partnership acquired the remaining 49% interest in a consolidated real estate venture previously owned by Stichting Pensioenfonds ABP containing ten office properties for a purchase price of $63.7 million. The Partnership owned a 51% interest in this real estate venture through the acquisition of Prentiss in January 5, 2006 and had already consolidated this venture. This purchase was accounted for as a step acquisition and the difference between the purchase price of the minority interest and the carrying value of the pro rata share of the assets of the real estate venture was allocated to the real estate venture’s assets and liabilities based on their relative fair value.

F - 64


On January 31, 2007, the Partnership sold George Kachel Farmhouse, an office property located in Reading, Pennsylvania containing 1,664 net rentable square feet, for a sales price of $0.2 million.
On January 19, 2007, the Partnership sold four office properties located in Dallas, Texas containing 1,091,186 net rentable square feet and a 4.7 acre land parcel, for an aggregate sales price of $107.1 million.
On January 18, 2007, the Partnership sold Norriton Office Center, an office property located in East Norriton, Pennsylvania containing 73,394 net rentable square feet, for a sales price of $7.8 million.
2006
Prentiss Acquisition
On January 5, 2006, the Partnership acquired Prentiss pursuant to a merger agreementthe Merger Agreement that the Company and the Partnership entered into with Prentiss on October 3, 2005. In conjunction with the Partnership’s acquisition of Prentiss, designees of The Prudential Insurance Partnership of America (“Prudential”) acquired Prentisscertain of Prentiss’ properties that contain an aggregate of approximately 4.32 million net rentable square feet for a total consideration of approximately $747.7 million. Through its acquisition of Prentiss (and after giving effect to the Prudential acquisition of certain of Prentiss’ properties), the Partnership acquired a portfolio of 79 office properties (including 13 properties that are owned by consolidated Real Estate Ventures and 7 properties that are owned by an unconsolidated Real Estate Venture) that contain an aggregate of 14.0 million net rentable square feet. The results of the operations of Prentiss have been included in the Partnership’s condensed consolidated financial statements since January 5, 2006.
The Partnership funded the approximately $1.05 billion cash portion of the merger consideration, related transaction costs and prepayments of approximately $543.3 million in Prentiss mortgage debt at the closing of the merger through (i) a $750 million unsecured term loan that matured on January 4, 2007 and was repaid in March 2006;2007; (ii) approximately $676.5 million of cash from Prudential’s acquisition of certain of the Prentiss properties; and (iii) approximately $195.0 million through borrowing under a revolving credit facility.
The following table summarizes the fair value of the assets acquired and liabilities assumed at the date of acquisition (in thousands):

F - 6165


        
 At January 5, 2006  At January 5, 2006 
Real estate investments
  
Land — operating $282,584 
Land - operating $282,584 
Building and improvements 1,942,728  1,942,728 
Tenant improvements 120,610  120,610 
   
Construction in progress and land inventory 57,329  57,329 
      
Total real estate investments acquired 2,403,251  2,403,251 
  
Rent receivables
 6,031  6,031 
Other assets acquired:
  
Intangible assets:  
In-place leases 187,907  187,907 
Relationship values 98,382  98,382 
Above-market leases 26,352  26,352 
      
Total intangible assets acquired 312,641  312,641 
Investment in real estate ventures 66,921  66,921 
Investment in marketable securities 193,089  193,089 
Other assets 8,868  8,868 
      
Total other assets 581,519  581,519 
      
Total assets acquired
 2,990,801  2,990,801 
  
Liabilities assumed:
  
Mortgage notes payable 532,607  532,607 
Unsecured notes 78,610  78,610 
Secured note payable 186,116  186,116 
Security deposits and deferred rent 6,475  6,475 
Other liabilities:  
Below-market leases 78,911  78,911 
Other liabilities 43,995  43,995 
      
Total other liabilities assumed 122,906  122,906 
Total liabilities assumed 926,714  926,714 
Minority interest 104,658  104,658 
      
Net assets acquired
 $1,959,429  $1,959,429 
      
In the acquisition of Prentiss, each then outstanding Prentiss common share was converted into the right to receive 0.69 of a Brandywine common share and $21.50 in cash (the “Per Share Merger Consideration”) except that 497,884 Prentiss common shares held in the Prentiss Deferred Compensation Plan converted solely into 720,737 Brandywine common shares. In addition, each then outstanding unit (each, a “Prentiss OP Unit”) of limited partnership interest in the Prentiss operating partnership subsidiary was, at the option of the holder, converted into Prentiss Common Shares with the right to receive the Per Share Merger Consideration or 1.3799 Class A unitsUnits of the Operating Partnership (“Brandywine Class A units”Units”). Accordingly, based on 49,375,723 Prentiss common shares outstanding and 139,000 Prentiss OP Units electing to receive merger consideration at closing of the acquisition, the CompanyPartnership issued 34,541,946 Brandywine common shares and paid an aggregate of approximately $1.05 billion in cash to the accounts of the former Prentiss shareholders. Based on 1,572,612 Prentiss OP Units outstanding at closing of the acquisition that did not elect to receive merger consideration, the Operating Partnership issued 2,170,047 Brandywine Class A units.Units. In addition, options issued by Prentiss that were exercisable for an aggregate of 342,662 Prentiss common shares were converted into options exercisable for an aggregate of 496,037 Brandywine common shares at a weighted average exercise price of $22.00 per share. Through its acquisition of Prentiss the Partnership also assumed approximately $611.2 million in aggregate principal amount of Prentiss debt.
Each Brandywine Class A unitUnit that was issued in the merger is subject to redemption at the option of the holder. The CompanyOperating Partnership may, at its option, satisfy the redemption either for an amount, per unit, of cash equal to the then market price of one Brandywine common share (based on the prior ten-day trading average) or for one Brandywine common share.

F - 6266


For purposes of computing the total purchase price reflected in the financial statements, the common shares, Class Aoperating units, restricted shares and options that were issued in the Prentiss transaction were valued based on the average trading price per Brandywine common share of $29.54. The average trading price was based on the average of the high and low trading prices for each of the two trading days before, the day of and the two trading days after the merger was announced (i.e., September 29, September 30, October 3, October 4 and October 5).
The Partnership considered the provisions of FIN 47 for these acquisitions and, where necessary, recorded a conditional asset retirement obligation as part of the purchase price. The aggregate asset retirement recorded in connection with the Prentiss acquisition was approximately $2.7 million.
Pro forma information relating to the acquisition of Prentiss is presented below as if Prentiss was acquired and the related financing transactions occurred on January 1, 2006 and 2005. These pro forma results are not necessarily indicative of the results which actually would have occurred if the acquisition had occurred on the first day of the periods presented, nor does the pro forma financial information purport to represent the results of operations for future periods (in thousands, except per share amounts):
                
 December 31,  December 31, 
 2006 2005  2006 2005 
 (unaudited)  (unaudited) 
Pro forma revenue $666,205 $644,273  $633,689 $628,084 
  
Pro forma loss from continuing operations  (14,694)  (19,163)  (19,610)  (24,912)
  
Pro forma income (loss) allocated to common partnership units 2,999  (22,404)
Pro forma loss allocated to common shares 2,999  (22,558)
  
Earnings per common partnership units from continuing operations 
Earnings per common share from continuing operations 
Basic — as reported $(0.25) $0.54  $0.30  $0.44 
          
Basic — as pro forma $(0.24) $(0.30) $0.29  $(0.36)
     
      
Diluted — as reported $(0.24) $0.54  $0.30  $0.44 
          
Diluted — as pro forma $(0.24) $(0.29) $0.29  $0.36 
          
  
Earnings per common partnership units 
Earnings per common share       
Basic — as reported $0.03  $0.63  $0.03 $0.62 
          
Basic — as pro forma $0.03  $(0.24) $0.03 $0.25 
     
      
Diluted — as reported $0.03  $0.62  $0.03 $0.62 
          
Diluted — as pro forma $0.03  $(0.24) $0.03 $0.24 
          
Subsequent to its acquisition of Prentiss and the related sale of certain properties to Prudential, the Partnership sold seventeen of the acquired properties that contain an aggregate of 2.9 million net rentable square feet and one parcel of land containing 10.9 acres.
Other Acquisitions and Dispositions
In addition to the acquisition and disposition activity related to Prentiss, during 2006, the Partnership also acquired fivedid the following:
On December 18, 2006, the Partnership sold 105/140 Terry Drive, an office propertiesproperty located in Newtown, Pennsylvania containing 839,704128,666 net rentable square feet, for a sales price of $16.2 million.
On December 1, 2006, the Partnership sold a parcel of land located in Newtown, Pennsylvania containing 59.0 acres, for a sales price of $19.0 million.
On November 16, 2006, the Partnership acquired 2251 Corporate Park Drive, an office property located in Herndon, Virginia containing 158,016 net rentable square feet, for a purchase price of $59.0 million.

F - 67


On November 15, 2006, the Partnership sold 5 and 93.4 acres6 Cherry Hill Executive Campus, two office properties located in Cherry Hill, New Jersey containing an aggregate of developable land167,017 net rentable square feet, for an aggregate sales price of $17.6 million.
On August 28, 2006, the Partnership sold 111 Presidential Boulevard, an office property located in Bala Cynwyd, Pennsylvania containing 172,894 net rentable square feet, for a sales price of $34.9 million.
On August 21, 2006, the Partnership acquired 2340 and 2355 Dulles Corner Boulevard, two office properties located in Herndon, Virginia containing an aggregate of 443,581 net rentable square feet, for an aggregate purchase price of $245.1$133.2 million. In addition to sales of assets acquired in the Prentiss merger,
On July 12, 2006, the Partnership sold six110 Summit Drive, an office propertiesproperty located in Exton, Pennsylvania containing 512,23743,660 net rentable square feet, and two parcelsfor a sales price of $3.7 million.
On June 27, 2006, the Partnership acquired a parcel of land located in Goochland County, Virginia containing 65.823.2 acres, for a purchase price of $4.6 million.
On June 21, 2006, the Partnership sold a parcel of land located in Westampton, New Jersey containing 5.5 acres, for a sales price of $0.4 million.
On April 21, 2006, the Partnership acquired a parcel of land located in Newtown, Pennsylvania containing 5.5 acres, for a purchase price of $1.9 million.
On April 20, 2006, the Partnership sold a parcel of land located in Radnor, Pennsylvania containing 1.3 acres, for a sales price of $4.5 million.
On April 17, 2006, the Partnership acquired a parcel of land located in Mount Laurel, New Jersey containing 47.9 acres, for a purchase price of $6.7 million.
On April 4, 2006, the Partnership acquired One Paragon Place, an aggregate $96.2 million, realizingoffice property located in Richmond, Virginia containing 145,127 net gains totaling $31.5rentable square feet, for a purchase price of $24.0 million.
On February 1, 2006, the Partnership acquired 100 Lenox Drive, an office property located in Lawrenceville, New Jersey containing 92,980 net rentable square feet, for a purchase price of $10.2 million.
2005
During 2005, the Partnership acquired one industrial property containing 385,884 net rentable square feet, two office properties containing 283,511 net rentable square feet and 36.4 acres of developable land for an aggregate purchase price of $94.5 million. The Partnership sold the industrial property acquired in 2005 containing 385,884

F - 63


net rentable square feet and three parcels of land containing 18.0 acres for an aggregate $30.2 million, realizing net gains totaling $6.8 million.
2004
During 2004, the Partnership acquired one office property in Marlton, New Jersey, totaling 170,000 square feet, and one land parcel totaling 58.4 acres for aggregate consideration of $22.9 million.
On September 21, 2004, the Partnership completed the acquisition of 100% of the partnership interests in The Rubenstein Company, L.P. (“TRC”). Through the acquisition, the Partnership acquired 14 office properties (the “TRC Properties”) located in Pennsylvania and Delaware that contain approximately 3.5 million net rentable square feet. The results of TRC’s operations have been included in the consolidated financial statements since that date.
The aggregate consideration for the TRC Properties was $631.3 million including $29.3 million of closing costs, debt prepayment penalties and debt premiums that are included in the basis of the assets acquired. The consideration was paid with $540.4 million of cash, $79.3 million of debt assumed, $1.6 million of other liabilities assumed, and 343,006 Class A units valued at $10.0 million. The value of the debt assumed was based on prevailing market rates at the time of acquisition. The value of the Class A units was based on the average trading price of the Company’s common shares.
The following table summarizes the fair value of the assets acquired and liabilities assumed at the date of acquisition (in thousands):
     
  At September 21, 2004 
Real estate investments
    
Land $105,302 
Building and improvements  434,795 
Tenant improvements  20,322 
    
Total real estate investments acquired  560,419 
     
Rent receivables
  5,537 
Other assets acquired:
    
Intangible assets:    
In-Place leases  49,455 
Relationship values  35,548 
Above-market leases  13,240 
    
Total intangible assets acquired  98,243 
Other assets  6,292 
    
Total Other assets  104,535 
    
Total assets acquired
  670,491 
     
Liabilities assumed:
    
Mortgage notes payable  79,330 
Security deposits and deferred rent  618 
Other liabilities:    
Below-market leases  39,204 
Other liabilities  943 
    
Total other liabilities assumed  40,147 
    
Total liabilities assumed  120,095 
    
Net assets acquired
 $550,396 
    
The net assets acquired above do not include any amounts potentially due to the sellers as contingent consideration as part of the transaction. The Partnership agreed to issue the sellers up to a maximum of $9.7 million of additional Class A units if certain of the TRC Properties achieve at least 95% occupancy prior to September 21, 2007. The maximum number of Class A units that the Partnership is obligated to issue declines monthly and, as of December 31, 2006, the maximum balance payable under this arrangement was $1.8 million, with no amount currently due.

F - 64


At the closing of this transaction, the Partnership agreed not to sell the TRC Properties in a transaction that would trigger taxable income to the contributors (i.e., sellers) for periods ranging from three to 15 years. In the event that the Partnership sells any of the properties in such a transaction within the applicable restricted period, the Partnership will be required to pay significant tax liabilities that would be incurred by the contributors.
The Partnership financed the TRC acquisition using the net proceeds from the Company’s September 2004 common share offering, after repayment of the Partnership’s $100.0 million unsecured term loan facility, and the net proceeds received from two unsecured term loans.
During 2004, the Partnership sold two office properties containing 141,000 net rentable square feet, two industrial properties containing 184,000 net rentable square feet and three land parcels containing 29.3 acres for an aggregate of $31.4 million, realizing a net gain of $2.1 million. As part of the sale of one property, the Partnership provided the buyer with $4.4 million in mortgage financing.
Additionally, the Partnership purchased and sold a land parcel containing 93 acres in two separate transactions with unrelated third parties. The purchase and sale resulted in a net gain of approximately $1.5 million.As part of the sale, the Partnership provided the buyer with $4.0 million in mortgage financing. Subsequent to the sale and prior to December 31, 2004, the mortgage financing was repaid in full.
During 2004, the Partnership recognized a $2.5 million deferred gain from the sale of a property in 2002 that did not previously qualify for gain recognition under the full-accrual method. During 2004, the buyer of the property repaid the seller provided financing and the criteria for gain recognition under the full-accrual method were met. The deferred gain recognized was presented within discontinued operations consistent with the historical operating results from the property.
4.INVESTMENT IN UNCONSOLIDATED REAL ESTATE VENTURES
As of December 31, 2006, the Partnership2007, we had an aggregate investment of approximately $74.6$71.6 million in 1114 unconsolidated Real Estate Ventures (net of returns of investment). The Partnership or PrentissWe formed these ventures with unaffiliated third parties, or acquired them, to develop office properties or to acquire land in anticipation of possible development of office properties. NineTen of the Real Estate Ventures own 1544 office buildings that contain an aggregate of approximately 2.74.4 million net rentable square feet, one Real Estate Venture developed a hotel property that contains 137 rooms, and one Real Estate Venture is developing anconstructed and sold condominiums in Charlottesville, VA and two Real Estate Ventures are in the planning stages of office property locateddevelopments in Albemarle County,Conshohocken, PA and Charlottesville, VA.
The Partnership also has investments in four real estate venturesthree Real Estate Ventures that are variable interest entities under FIN No. 46R and of which the Partnership is the primary beneficiary.beneficiary, and one investment in a Real Estate

F - 68


Venture for which the Partnership serves as the general partner and the limited partner does not have substantive participating rights. These entities are consolidated by the Partnership.
The Partnership accounts for its unconsolidated interests in its Real Estate Ventures using the equity method. Unconsolidated ownership interests range from 6%5% to 50%, subject to specified priority allocations in certain of the Real Estate Ventures.
The amounts reflected belowin the following tables (except for carrying amount and the Partnership’s share of equity and income) are based on the historical financial information of the individual Real Estate Ventures. One of the Real Estate Ventures, acquired in connection with the Prentiss acquisition, had a negative equity balance on a historical cost basis as a result of historical depreciation and distribution of excess financing proceeds. The Partnership reflected its acquisition of this Real Estate Venture interest at its relative fair value as of the date of the purchase of Prentiss. The difference between allocated cost and the underlying equity in the net assets of the investee is accounted for as if the entity were consolidated (i.e., allocated to the Partnership’s relative share of assets and liabilities with an adjustment to recognize equity in earnings for the appropriate additional depreciation/amortization).
The Partnership’s investment in Real Estate Ventures as of December 31, 20062007 and the Partnership’s share of the Real Estate Ventures’ income (loss) for the year ended December 31, 20062007 was as follows (in thousands):

F - 65


                        
 Company’s Share                               
 of Real Estate Real Estate Current    Partnership’s Share      
 Ownership Carrying Venture Venture Interest Debt  of 2007 Real Estate Real Estate Current  
 Percentage (1) Amount Income (Loss) Debt at 100% Rate Maturity  Ownership Carrying Venture Venture Interest Debt
   Percentage (1) Amount Income (Loss) Debt at 100% Rate Maturity
Two Tower Bridge Associates  35% $2,290 $(102) $11,430  6.82% May-08  35% $2,287 $(344) $11,816  6.82% May-08
Five Tower Bridge Associates  15% 162 57 29,927  6.77% Feb-09  15% 162  29,260  6.77% Feb-09
Seven Tower Bridge Associates  10% 299    N/A N/A 
Eight Tower Bridge Associates  5.5% 1,184  (175) 41,830  7.68% Feb-12  5.5%  (198)  68,464  7.68% Feb-12
1000 Chesterbrook Boulevard  50% 2,608 660 26,791  6.88% Nov-11  50% 2,333 669 26,410  6.88% Nov-11
PJP Building Two, LC  30% 143 107 5,282  6.12% Nov-23  30% 177 124 5,107  6.12% Nov-23
PJP Building Three, LC  25% 30 76  N/A N/A   25%  (26)   N/A N/A 
PJP Building Five, LC  25% 169 59 6,503  6.47% Aug-19  25% 148 54 6,380  6.47% Aug-19
PJP Building Six, LC  25% 75  4,597  7.08%  (3)  25% 96 21 8,033  6.35% 6/1/2009 
PJP Building Seven, LC  25% 75  1,296 6.35% Oct-10
Macquarie BDN Christina LLC  20% 3,351 927 74,500  4.62% Jan-09  20% 2,854 1,228 74,500  4.62% Jan-09
Broadmoor Austin Associates  50% 63,793 446 117,249  5.79% Apr-11  50% 62,775 680 109,020  5.79% Apr-11
Residence Inn Tower Bridge  50% 769 110 14,480  5.63% Jan-16  50% 616 472 14,480  5.63% Feb-16
Invesco, L.P. (2)  35%    N/A N/A 
G&I Interchange Office LLC (DRA) (2)  20%   184,000  5.78% Jan-15
Invesco, L.P. (3)  35%  4,051  N/A N/A 
      
 $74,574 $2,165 $332,589  $71,598 $6,955 $538,766 
      
 
(1) Ownership percentage represents the Partnership’s entitlement to residual distributions after payments of priority returns, where applicable.
 
(2) See Note 3 - Real Estate Investments for description of formation of the Venture. The Partnership retained a 20% interest and received distributions from financing in excess of its basis. The Partnership has no commitment to fund and no expectation of operating losses, accordingly, the Partnership’s carrying value has not been reduced below zero.
(3)The Partnership’s interest consists solely of a residual profits interest.
(3)Property This distribution represents the Partnership’s final distribution from the Venture and, therefore, it is under development as of December 31, 2006, with an expected completion dateno longer included in the first quarter of 2007, at which time the outstanding balance is expected to be converted to permanent financing.our total real estate venture count.
The following is a summary of the financial position of the unconsolidated Real Estate Ventures in which the Partnership had investment interests as of December 31, 20062007 and 20052006 (in thousands):

F - 69


                
 December 31,  December 31,
 2006 2005  2007 2006
Net property $365,168 $286,601  $630,327 $365,168 
Other assets 52,935 32,291  63,458 52,935 
Other Liabilities 28,764 24,855  34,149 28,764 
Debt 332,589 205,018  538,766 332,589 
Equity 56,888 88,995  120,870 56,888 
Partnership’s share of equity (Partnership basis) 74,574 13,331 
Company’s share of equity (Company basis) 71,598 74,574 
The following is a summary of results of operations of the unconsolidated Real Estate Ventures in which the Partnership had interests as of December 31, 2007, 2006 2005 and 20042005 (in thousands):
            
             Year ended December 31,
 2006 2005 2004  2007 2006 2005
Revenue $70,381 $59,346 $46,906  $75,541 $70,381 $59,346 
Operating expenses 26,878 29,387 19,395  25,724 26,878 29,387 
Interest expense, net 21,711 12,324 11,843  21,442 21,711 12,324 
Depreciation and amortization 10,808 9,359 9,514  15,526 17,808 9,359 
Net income 12,711 8,276 6,154  12,849 5,176 8,276 
Partnership’s share of income (Partnership basis) 2,165 3,172 2,023 
Company’s share of income (Company basis) 6,955 2,165 3,172 
As of December 31, 2006,2007, the aggregate principal payments of non-recourse debt payable to third-parties is as follows (in thousands):
        
2007 $28,166 
2008  20,592  $16,653 
2009  38,109  121,684 
2010  9,336  11,105 
2011  110,440  106,505 
2012 69,280 
Thereafter  125,946  213,539 
      
 $332,589  $538,766 
      

F - 66


As of December 31, 2006,2007, the Partnership had guaranteed repayment of approximately $0.6$0.3 million of loans on behalf of certain Real Estate Ventures. The Partnership also provides customary environmental indemnities and completion guarantees in connection with construction and permanent financing both for its own account and on behalf of its Real Estate Ventures. For certain of the Real Estate Ventures with construction projects, the Partnership’s expectation is that it will be required to fund approximately $10.6 million of the construction costs through capital calls.
5.DEFERRED COSTS
As of December 31, 20062007 and 2005,2006, the Partnership’s deferred costs were comprised of the following (in thousands):

F - 70


             
  December 31, 2007 
      Accumulated  Deferred Costs, 
  Total Cost  Amortization  net 
Leasing Costs $99,077  $(31,259) $67,818 
Financing Costs  27,597   (8,292)  19,305 
          
Total $126,674  $(39,551) $87,123 
          
             
  December 31, 2006 
      Accumulated  Deferred Costs, 
  Total Cost  Amortization  net 
Leasing Costs $83,629  $(28,278) $55,351 
Financing Costs  24,648   (6,291)  18,357 
          
Total $108,277  $(34,569) $73,708 
          
             
  December 31, 2005 
      Accumulated  Deferred Costs, 
  Total Cost  Amortization  net 
Leasing Costs $52,476  $(23,116) $29,360 
Financing Costs  9,793   (1,551)  8,242 
          
Total $62,269  $(24,667) $37,602 
          
During 2007, 2006 2005 and 2004,2005, the Partnership capitalized internal direct leasing costs of $8.2 million, $8.3 million $4.7 million and $4.0$4.7 million, respectively, in accordance with SFAS No. 91 and related guidance.

F - 67


6.INTANGIBLE ASSETS/ASSETS AND LIABILITIES
As of December 31, 20062007 and 2005,2006, the Partnership’s intangible assets/liabilities were comprised of the following (in thousands):
            
             December 31, 2007 
 Accumulated Deferred Costs,  Accumulated Deferred Costs, 
 Total Cost Amortization net  Total Cost Amortization net 
In-place lease value $207,513 $(52,293) $155,220  $180,456 $(65,742) $114,714 
Tenant relationship value 124,605  (19,572) 105,033  121,094  (32,895) 88,199 
Above market leases acquired 32,667  (11,669) 20,998  29,337  (14,101) 15,236 
              
Total $364,785 $(83,534) $281,251  $330,887 $(112,738) $218,149 
              
  
Below market leases acquired $118,536 $(26,009) $92,527  $103,825 $(36,544) $67,281 
              
                        
 December 31, 2005  December 31, 2006 
 Accumulated Deferred Costs,  Accumulated Deferred Costs, 
 Total Cost Amortization net  Total Cost Amortization net 
In-place lease value $47,965 $(12,575) $35,390  $207,513 $(52,293) $155,220 
Tenant relationship value 37,845  (5,606) 32,239  124,605  (19,572) 105,033 
Above market leases acquired 14,404  (3,936) 10,468  32,667  (11,669) 20,998 
              
Total $100,214 $(22,117) $78,097  $364,785 $(83,534) $281,251 
              
  
Below market leases acquired $41,635 $(6,931) $34,704  $118,536 $(26,009) $92,527 
              
For the yearyears ended December 31, 2007, 2006, 2005, and 20042005 the Partnership wrote-off $4.1 million, $1.2 million, $1.1 million, and $0.2$1.1 million, respectively of intangible assets as a result of tenant move-outs prior to the end of the associated lease terms. TheDuring 2007, the Partnership wrote off approximately $0.4 million and approximately $0.1 million of intangible liabilities as a result of tenant move-outs in each of the years ending December 31, 2006, 2005, and 2004.2005.
As of December 31, 2006,2007, the Partnership’s annual amortization for its intangible assets/liabilities are as follows (in thousands, assumes no early terminations):
         
  Assets  Liabilities 
2007 $56,795  $19,735 
2008  46,827   15,039 
2009  41,312   13,013 
2010  34,470   10,513 
2011  27,584   8,725 
Thereafter  74,263   25,502 
       
Total $281,251  $92,527 
       

F - 6871


         
  Assets  Liabilities 
2008 $48,725  $14,904 
2009  42,377   11,984 
2010  35,344   9,567 
2011  27,358   7,841 
2012  21,067   6,899 
Thereafter  43,278   16,086 
       
Total $218,149  $67,281 
       
7.MORTGAGE NOTES PAYABLEDEBT OBLIGATIONS
The following table sets forth information regarding the Partnership’s mortgage indebtedness outstanding at December 31, 20062007 and 20052006 (in thousands):

F - 72


                     
          Effective        
  December 31,  December 31,  Interest Rate      Maturity 
Property / Location 2006  2005  @ 12/31/06      Date 
111 Arrandale Blvd $  $1,043         Aug-06
429 Creamery Way     2,927         Sep-06
Interstate Center  552   766   6.19%  (b) Mar-07
440 & 442 Creamery Way  5,421   5,581   8.55%     Jul-07
Norriton Office Center     5,191   8.50%     Oct-07
481 John Young Way  2,294   2,360   8.40%     Nov-07
400 Commerce Drive  11,797   11,989   7.12%     Jun-08
Two Logan Square  71,348   72,468   5.78%  (a) Jul-09
The Bluffs  10,700      6.00%  (a) Jul-09
Pacific Ridge  14,500      6.00%  (a) Aug-09
Pacific View/Camino  26,000      6.00%  (a) Aug-09
Computer Associates Building  31,000      6.00%  (a) Aug-09
200 Commerce Drive  5,841   5,911   7.12%  (a) Jan-10
Presidents Plaza  30,900      6.00%  (a) May-10
1333 Broadway  24,418      5.18%  (a) May-10
The Ordway  46,199      7.95%  (a) Aug-10
World Savings Center  27,524      7.91%  (a) Nov-10
Plymouth Meeting Exec.  44,103   44,687   7.00%  (a) Dec-10
Four Tower Bridge  10,626   10,763   6.62%     Feb-11
Arboretum I, II, III & V  22,750   23,238   7.59%     Jul-11
Midlantic Drive/Lenox Drive/DCC I  62,678   63,803   8.05%     Oct-11
Research Office Center  42,205      7.64%  (a) Oct-11
Concord Airport Plaza  38,461      7.20%  (a) Jan-12
Six Tower Bridge  14,744   15,083   7.79%     Aug-12
Newtown Square/Berwyn Park/Libertyview  63,231   64,429   7.25%     May-13
Coppell Associates  3,737      6.89%     Dec-13
Southpoint III  4,948   5,431   7.75%     Apr-14
Tysons Corner  100,000      4.84%  (a) Aug-15
Coppell Associates  16,600      5.75%     Mar-16
Grande A  59,512   61,092   7.48%     Jul-27
Grande A     11,456         Jul-27
Grande A     1,551         Jul-27
Grande B  77,534   79,036   7.48%     Jul-27
                   
Principal balance outstanding  869,623   488,805             
Plus: unamortized fixed-rate debt premiums  14,294   5,972             
                   
Total mortgage indebtedness $883,917  $494,777             
                   
MORTGAGE DEBT:
                 
          Effective    
  December 31,  December 31,  Interest  Maturity 
Property / Location 2007  2006  Rate  Date 
Interstate Center $  $552   6.19%  Mar-07
The Bluffs     10,700   6.00%(a) Apr-07
Pacific Ridge     14,500   6.00%(a) Apr-07
Pacific View/Camino     26,000   6.00%(a) Apr-07
Computer Associates Building     31,000   6.00%(a) Apr-07
Presidents Plaza     30,900   6.00%(a) Apr-07
440 & 442 Creamery Way     5,421   8.55% May-07
Grande A     59,513   7.48% Jul-07
Grande B     77,535   7.48% Jul-07
481 John Young Way     2,294   8.40% Dec-07
400 Commerce Drive  11,575   11,797   7.12% Jun-08
Two Logan Square  70,124   71,348   5.78%(a) Jul-09
200 Commerce Drive  5,765   5,841   7.12%(a) Jan-10
1333 Broadway  23,997   24,418   5.18%(a) May-10
The Ordway  45,509   46,199   7.95%(a) Aug-10
World Savings Center  27,142   27,524   7.91%(a) Nov-10
Plymouth Meeting Exec.  43,470   44,103   7.00%(a) Dec-10
Four Tower Bridge  10,518   10,626   6.62% Feb-11
Arboretum I, II, III & V  22,225   22,750   7.59% Jul-11
Midlantic Drive/Lenox Drive/DCC I  61,276   62,678   8.05% Oct-11
Research Office Center  41,527   42,205   7.64%(a) Oct-11
Concord Airport Plaza  37,570   38,461   7.20%(a) Jan-12
Six Tower Bridge  14,472   14,744   7.79% Aug-12
Newtown Square/Berwyn Park/Libertyview  62,125   63,231   7.25% May-13
Coppell Associates  3,512   3,737   6.89% Dec-13
Southpoint III  4,426   4,949   7.75% Apr-14
Tysons Corner  100,000   100,000   4.84%(a) Aug-15
Coppell Associates  16,600   16,600   5.75% Feb-16
               
Principal balance outstanding  601,833   869,626         
                 
Plus: unamortized fixed-rate debt premiums, net  10,065   14,294         
               
Total mortgage indebtedness $611,898  $883,920         
               
                 
UNSECURED DEBT:
                
Sweep Agreement Line  10,727     Libor + 0.75% Mar-08
Private Placement Notes due 2008  113,000   113,000   4.34% Dec-08
2009 Three Year Notes     300,000  Libor + 0.45% Apr-09
2009 Five Year Notes  275,000   275,000   4.62% Nov-09
Bank Term Loan  150,000     Libor + 0.80% Oct-10
2010 Five Year Notes  300,000   300,000   5.61% Dec-10
Line-of-Credit  120,000   60,000  Libor + 0.725% Jun-11
3.875% Exchangeable Notes  345,000   345,000   3.87% Oct-11
2012 Six Year Notes  300,000   300,000   5.77% Apr-12
2014 Ten Year Notes  250,000   250,000   5.53% Nov-14
2016 Ten Year Notes  250,000   250,000   5.95% Apr-16
2017 Ten Year Notes  300,000      5.72% May-17
Indenture IA (Preferred Trust I)  27,062   27,062  Libor + 1.25% Mar-35
Indenture IB (Preferred Trust I)  25,774   25,774  Libor + 1.25% Apr-35
Indenture II (Preferred Trust II)  25,774   25,774  Libor + 1.25% Jul-35
               
Principal balance outstanding  2,492,337   2,271,610         
                 
Plus: unamortized fixed-rate debt discounts, net  (3,266)  (3,300)        
               
Total unsecured indebtedness $2,489,071  $2,268,310         
               
 
Total Debt Obligations $3,100,969  $3,152,230         
               
 
(c)(b) Loans were assumed upon acquisition of the related property. Interest rates presented above reflect the market rate at the time of acquisition.
(d)For loans that bear interest at a variable rate, the rates in effect at December 31, 2006 have been presented.
The mortgage note payable balance of $5.1 million for Norriton Office Center as of December 31, 2006, not included in the table above, is included in Mortgage notes payable and other liabilities held for sale on the balance sheet. This property was held for sale at December 31, 2006 and sold in January 2007.

F - 73


During 2007, 2006 2005 and 2004,2005, the Partnership’s weighted-average interest rate on its mortgage notes payable was 6.57%6.74%, 7.17%6.57% and 6.80%7.17%, respectively. As of December 31, 20062007 and 2005,2006, the net carrying value of the Partnership’s Properties that are encumbered by mortgage indebtedness was $1,003.5 million and $1,498.9 million, and $779.2 million, respectively.

F - 69


As of December 31, 2006, the Partnership’s aggregate principal payments, excluding payments on one mortgage note held for sale at December 31, 2006, were as follows (in thousands):
     
2007 $20,643 
2008  25,228 
2009  168,237 
2010  192,601 
2011  140,128 
Thereafter  337,083 
    
Total mortgage indebtedness $883,920 
    
8.UNSECURED NOTES
The following table sets forth information regarding the Partnership’s unsecured notes outstanding at December 31, 2006 and 2005 (in thousands):
                 
  December 31,  December 31,  Stated  Effective 
      Year of Maturity 2006  2005  Interest Rate  Interest Rate 
2008  113,000   113,000   4.34%  4.34%(a)
2009  300,000     Libor + 0.45%  5.78%(a)
2009  275,000   275,000   4.50%  4.62%(a)
2010  300,000   300,000   5.63%  5.61%(a)
2011  345,000      3.88%  3.88%
2012  300,000      5.75%  5.77%(a)
2014  250,000   250,000   5.40%  5.53%(a)
2016  250,000      6.00%  5.95%(a)
2035  27,062     Libor + 1.25%  6.58%
2035  25,774     Libor + 1.25%  6.58%
2035  25,774     Libor + 1.25%  6.58%
               
Total face amount $2,211,610  $938,000         
Less: unamortized discounts  (3,300)  (1,393)        
               
Total unsecured notes $2,208,310  $936,607         
               
(a)Rates include the effect of amortization of discounts and costs related to settlement of treasury lock agreements.
On March 28, 2006,April 30, 2007, the Operating Partnership completed an underwritten public offering of (1) $300,000,000$300.0 million aggregate principal amount of 5.70% unsecured notes due 2017 (the “2017 Notes”). Brandywine Realty Trust guaranteed the payment of principal and interest on the 2017 Notes. The Partnership used proceeds from these notes to reduce borrowings under the Partnership’s revolving credit facility.
On November 29, 2006, the Partnership irrevocably called for redemption of the $300 million aggregate principal amount of unsecured floating rate notes due 2009 (the “2009 Notes”), (2) $300,000,000 aggregate principal amount of 5.75% unsecured and repaid these notes due 2012 (the “2012 Notes”) and (3) $250,000,000 aggregate principal amount of 6.00% unsecured notes due 2016 (the “2016 Notes”). The Company guaranteedon January 2, 2007 in accordance with the payment of principal and interest on the 2009 Notes, the 2012 Notes and the 2016 Notes. The Partnership usedNovember call using proceeds from our Credit Facility. As a result of the early repayment of these notes, to repay a term loan obtained to finance a portionthe Partnership incurred accelerated amortization of the consideration paid$1.4 million in associated deferred financing costs in the Prentiss merger and to reduce borrowings under its revolving credit facility.
In March 2006, in anticipation of the offering of the 2009 Notes, the 2012 Notes and the 2016 Notes, the Partnership entered into forward starting swaps. The forward starting swaps were designated as cash flow hedges of interest rate risk and qualified for hedge accounting. The forward starting swaps were for notional amounts totaling $200.0 million at an all-in-rate of 5.2%. Two of the forward starting swaps had a six year maturity date and one had a ten year maturity date. The forward starting swaps were settled in March 2006 upon the completion of the offering of the 2009, 2012, and 2016 Notes at a total benefit of approximately $3.3 million. The benefit was recorded as a component of accumulated other comprehensive income in the accompanying consolidated balance sheet and is being amortized to interest expense over the term of the unsecured notes.fourth quarter 2006.
On October 4, 2006, the Operating Partnership completed an offering ofsold $300.0 million aggregate principal amount of unsecured 3.875% senior convertible notesExchangeable Guaranteed Notes due 2026 in an offering made in reliance upon an exemption from registration rights under Rule 144A under the Securities Act of 1933 and issuedsold an additional $45 million of exchangeable notes3.875% Exchangeable Guaranteed Notes due 2026 on October 16, 2006 to cover over-allotments. The Operating Partnership has registered the resale of the exchangeable notes. At certain times and upon the occurrence of certain events, the notes are convertible intoexchangeable for cash up to their principal amount and with respect to the remainder, if any, of the exchange value in excess of such principal amount, cash or shares of the Company’s common shares. The initial exchange rate will beis 25.4065 shares per $1,000 principal amount of notes (which is equivalent to an initial exchange price of $39.36 per share). The notesOperating Partnership may not be redeemed byredeem the Companynotes prior to October 20, 2011 (except to preserve the Company’s status as a REIT)REIT for U.S. federal income tax purposes), but are redeemable anytimewe may redeem the notes at any time thereafter, in whole or in part, at a redemption price equal to the principal amount of the notes to be redeemed plus any accrued and unpaid interest (including additional interest), if any.interest. In addition, on October 20, 2011, October 15, 2016 and October 15, 2021 oras well as upon the occurrence of certain change in control transactions prior to October 20, 2011, note holders of notes may require the Company to repurchase all or a portion of the notes at a purchase price equal to the principal amount plus any accrued and unpaid interest on the notes. Netinterest. The Operating Partnership used net proceeds from the October 2006 Debt Offering were usednotes to repurchase approximately $60.0 million of the Company’s common stock at a price of $32.80 per share and for general corporate purposes, including the repayment of outstanding borrowings under the Credit Facility.
On March 28, 2006, the Operating Partnership completed an underwritten public offering of (1) the 2009 Notes, (2) $300 million aggregate principal amount of 5.75% unsecured notes due 2012 (the “2012 Notes”) and (3) $250 million aggregate principal amount of 6.00% unsecured notes due 2016 (the “2016 Notes”). Brandywine Realty Trust guaranteed the payment of principal and interest on the 2009 Notes, the 2012 Notes and the 2016 Notes. The Company used proceeds from these notes to repay a term loan obtained to finance a portion of the consideration paid in the Prentiss merger and to reduce borrowings under the Company’s unsecured revolving credit facility.

F - 70


On November 24, 2006, the Partnership prepaid a secured note (the “Defeased Note”) having an outstanding balance of $180.1 million. The Defeased Note had a maturity date of February 2007 and related to a voluntary defeasance of secured debt by Prentiss in the fourth quarter of 2005 in which Prentiss exercised the right to complete a voluntary defeasance of a $180.1 million secured loan. Pursuant to the defeasance, Prentiss assigned its obligations under the Defeased Note to an unrelated successor entity together with funds to acquire U.S. Treasury Securities sufficient to provide for the payment in full of debt service (including interest and principal) on the Defeased Note from the defeasance date through the loan maturity date.
TheOperating Partnership’s indenture relating to the unsecured notes contains financial restrictions and requirements, including (1) a leverage ratio not to exceed 60%, (2) a secured debt leverage ratio not to exceed 40%, (3) a debt service coverage ratio of greater than 1.5 to 1.0, and (4) an unencumbered asset value of not less than 150% of unsecured debt. In addition, the note purchase agreement relating to the Operating Partnership’s $113 million principal amount of unsecured notes due 2008 contains covenants that are similar to the covenants in the indenture.
InOn October 2005, in anticipation of the offering of the 2010 Notes,15, 2007, the Partnership entered into forward starting swaps. The forward starting swaps were designated as cash flow hedges of interest rate risk and qualified for hedge accounting. The forward starting swaps were for notional amounts totaling $125.0 milliona term loan agreement (the “Term Loan Agreement”) that provides for an expirationunsecured term loan (the “Term Loan”) in the amount of five years at an all-in-rate of 4.9%.$150.0 million. The forward starting swaps were settled in December 2005 uponPartnership used the completionproceeds to pay down a portion of the offeringoutstanding amount on its $600.0 million unsecured revolving credit facility. The Term Loan matures on October 18, 2010 and may be extended at the Partnership’s option for two one-year periods but not beyond the maturity date of its revolving credit facility. There is no scheduled principal amortization of the 2010 NotesTerm Loan and the Partnership may prepay borrowings in whole or in part without premium or penalty. Portions of the Term Loan bear interest at a total benefit

F - 74


per annum floating rate equal to: (i) the higher of approximately $0.2 million.(x) the prime rate or (y) the federal funds rate plus 0.50% per annum or (ii) a London interbank offered rate that is the rate at which Eurodollar deposits for one, two, three or six months are offered plus between 0.475% and 1.10% per annum (the “Libor Margin”), depending on the Partnership’s debt rating. The benefit was recordedTerm Loan Agreement contains financial and operating covenants. Financial covenants include minimum net worth, fixed charge coverage ratio, maximum leverage ratio, restrictions on unsecured and secured debt as a componentpercentage of accumulatedunencumbered assets and other comprehensive income in the accompanying consolidated balance sheet and is being amortized to interest expense over the term of the unsecured notes.
On December 20, 2005, the Partnership completed an underwritten public offering of $300 million aggregate principal amount of 5.625% unsecured notes due December 15, 2010 (the “2010 Notes”). The Company guaranteed the payment of principal and interestfinancial tests. Operating covenants include limitations on the 2010 Notes.
9.UNSECURED CREDIT FACILITYPartnership’s ability to incur additional indebtedness, grant liens on assets, enter into affiliate transactions, and pay dividends.
The Partnership utilizes credit facility borrowings for general business purposes, including the acquisition, development and redevelopment of properties and the repayment of other debt. In December 2005,On June 29, 2007, the Partnership replacedamended its then existing credit facility with a $600.0 million unsecured revolving credit facility (the “Credit Facility”) that matures in. The amendment extended the maturity date of the Credit Facility from December 22, 2009 to June 29, 2011 (subject to an extension of one year, at the Partnership’s option, upon its payment of an extension fee equal to 15 basis points of the committed amount under the Credit Facility). The amendment also reduced the per annum variable interest rate on outstanding balances from Eurodollar plus 0.80% to Eurodollar plus 0.725% per annum. In addition, the amendment reduced the facility fee paid quarterly from 20 basis points to 17.5 basis points per annum. The interest rate and facility fee are subject to adjustment upon a one-year extension option.change in the Partnership’s unsecured debt ratings. The amendment also lowered to 7.50% from 8.50% the capitalization rate used in the calculation of several of the financial covenants; increased our swing loan availability from $50.0 million to $60.0 million; and increased the number of competitive bid loan requests available to the Partnership from two to four in any 30 day period. Borrowings are always available to the extent of borrowing capacity at the stated rates, however, the competitive bid feature allows banks that are part of the lender consortium under the Credit Facility generally bear interestto bid to make loans to the Partnership at LIBOR plus a spread over LIBOR ranging from 0.55% to 1.10% based on the Company’s unsecured senior debt rating.reduced Eurodollar rate. The Partnership has the option to increase the Credit Facility to $800.0 million subject to the absence of any defaults and the Partnership’s ability to acquire additional commitments from its existing lenders or new lenders. As of December 31, 2006,2007, the Partnership had $60.0$120.0 million of borrowings and $24.2$13.5 million of letters of credit outstanding under the Credit Facility, leaving $516.0$466.5 million of unused availability. TheAs of December 31, 2007 and 2006, the weighted-average interest rate on the Partnership’s unsecured credit facilities,Credit Facility, including the effect of interest rate hedges, was 5.93% in 2006, 4.58% in 20056.25% and 3.79% in 2004.5.93%, respectively.
The Credit Facility requires the maintenance of ratios related to minimum net worth, debt-to-total capitalization and fixed charge coverage and includes non-financial covenants.
10.UNSECURED TERM LOANS
On March 28, 2006,In April 2007, the Partnership terminated, and repaid all amountsentered into a $20.0 million Sweep Agreement (the “Sweep Agreement”) to be used for cash management purposes. Borrowings under the Sweep Agreement bear interest at one-month LIBOR plus 0.75%. As of December 31, 2007 the Partnership had $10.7 million of borrowing outstanding under the $750 million Term LoanSweep Agreement, that it entered into on January 5, 2006 with JPMorgan Chase Bank, N.A., as Administrative Agent and Syndication Agent, J.P. Morgan Securities Inc., as Lead Arranger and Sole

F - 71


Bookrunner, and the lenders identified therein. The Partnership entered into the Term Loan Agreement in connection with its acquisition through the merger of Prentiss on January 5, 2006.
During 2004, the Partnership repaid all amounts outstanding under its $100 million unsecured term loan facility. The $100.0 million unsecured term loan bore interest at LIBOR plus a spread ranging from 1.05% to 1.9% per annum based on the Partnership’s leverage.
In connection with the TRC acquisition in September 2004, the Partnership obtained two term loans: a $320 million unsecured term loan due in 2007 (the “2007 Term Loan”) and a $113 million term loan due in 2008 (the “2008 Term Loan”). In October 2004, the Partnership repaid all amounts outstanding under its 2007 Term Loan with proceeds of the 2009 and 2014 unsecured notes issued on October 22, 2004. In December 2004, the Partnership repaid the 2008 Term Loan with the proceeds of the 2008 unsecured notes, which were issued by the Partnership. The Company has guaranteed the payment of the principal of and interest on the 2008 unsecured notes. A former partner in TRC has also provided a guaranty of the 2008 unsecured notes (although this guaranty does not in any way limit or diminish the obligations of the Partnership or obligations arising under the guarantee that the Company provided). As a result of the repayments of the 2007 and 2008 Term Loans, the Partnership wrote-off approximately $3.0leaving $9.3 million of unamortized deferred financing costs in 2004. These write-offs are presented as deferred financing costs within interest expense in the consolidated statement of operations. While outstanding, the 2007 and 2008 Term Loans bore interest at LIBOR plus spreads of 1.1% and 1.35%, respectively.unused availability.
As of December 31, 2006 and 2005,2007, the Partnership had no unsecured term loans outstanding.Partnership’s aggregate principal payments are as follows (in thousands):
11.
     
2008 $146,005 
2009  354,955 
2010  600,189 
2011  597,261 
2012  351,053 
Thereafter  1,044,707 
    
Total principal payments $3,094,170 
Net unamortized premiums/discounts  6,799 
    
Outstanding indebtedness $3,100,969 
    
8.FAIR VALUE OF FINANCIAL INSTRUMENTS
The following fair value disclosure was determined by the Partnership using available market information and discounted cash flow analyses as of December 31, 20062007 and 2005,2006, respectively. The discount rate used in calculating fair value is the sum of the current risk free rate and the risk premium on the date of acquiring or assuming the instruments or obligations. Considerable judgment is necessary to interpret market data and to develop the related estimates of fair value. Accordingly, the estimates presented are not

F - 75


necessarily indicative of the amounts that the Partnership could realize upon disposition. The use of different estimation methodologies may have a material effect on the estimated fair value amounts. The Partnership believes that the carrying amounts reflected in the Consolidated Balance Sheets at December 31, 20062007 and 20052006 approximate the fair values for cash and cash equivalents, accounts receivable, other assets, accounts payable, accrued expenses and borrowings under variable rate debt instruments.
The following are financial instruments for which the Partnership estimates of fair value differ from the carrying amounts (in thousands):
                 
  December 31, 2006  December 31, 2005 
  Carrying  Fair  Carrying  Fair 
  Amount  Value  Amount  Value 
Mortgage payable $88,470  $859,490  $481,006  $521,607 
Unsecured Notes payable $1,829,701  $1,826,357  $936,607  $920,470 
                 
  December 31, 2007 December 31, 2006
  Carrying Fair Carrying Fair
  Amount Value Amount Value
Mortgage payable, net of premiums $611,898  $597,287  $888,470  $859,490 
Unsecured Notes payable, net of discounts $2,129,734  $1,996,475  $1,829,701  $1,826,357 
12.9.RISK MANAGEMENT AND USE OF FINANCIAL INSTRUMENTS
Risk Management
In the normal course of its on-going business operations, the Partnership encounters economic risk. There are three main components of economic risk: interest rate risk, credit risk and market risk. The Partnership is subject to interest rate risk on its interest-bearing liabilities. Credit risk is the risk of inability or unwillingness of tenants to make contractually required payments. Market risk is the risk of declines in the value of properties due to changes in rental rates, interest rates or other market factors affecting the valuation of properties held by the Partnership.

F - 72


Use of Derivative Financial Instruments
The Partnership’s use of derivative instruments is limited to the utilization of interest rate agreements or other instruments to manage interest rate risk exposures and not for speculative purposes. The principal objective of such arrangements is to minimize the risks and/or costs associated with the Partnership’s operating and financial structure, as well as to hedge specific transactions. The counterparties to these arrangements are major financial institutions with which the Partnership and its affiliates may also have other financial relationships. The Partnership is potentially exposed to credit loss in the event of non-performance by these counterparties. However, because of the high credit ratings of the counterparties, the Partnership does not anticipate that any of the counterparties will fail to meet these obligations as they come due. The Partnership does not hedge credit or property value market risks.
The Partnership entered into two interest rate swaps in January 2006 aggregating $90 million in notional amount as part of its acquisition of Prentiss. The instruments are used to hedge the risk of interest cash outflows on secured variable rate debt on properties that are owned by one of our consolidated Real Estate Ventures. One of the swaps with a notional amount of $20 million has a maturity date of February 1, 2010 and the other with a notional amount of $70 million has a maturity date of August 1, 2008.
The Partnership also entered into forward starting swaps in March 2006 as more fully described in Note 8.risks through derivative financial instruments.
The Partnership formally assesses, both at inception of the hedge and on an on-going basis, whether each derivative is highly-effective in offsetting changes in cash flows of the hedged item. If management determines that a derivative is not highly-effective as a hedge or if a derivative ceases to be a highly-effective hedge, the Partnership will discontinue hedge accounting prospectively.
Outstanding Derivatives
In November 2007, the Partnership entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap is for a notional amount of $25.0 million at a fixed rate of 3.747% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt. The hedge had a nominal fair value at December 31, 2007 that is included in other liabilities and accumulated other comprehensive income in the accompanying consolidated balance sheet.
In October 2007, the Partnership entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap is for a notional amount of $25.0 million at a fixed rate of 4.415% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt. The fair value of the hedge at December 31, 2007 was $(0.5) million and is included in other liabilities and accumulated other comprehensive income in the accompanying consolidated balance sheet.

F - 76


In September 2007, the Partnership entered into an interest rate swap agreement that is designated as a cash flow hedge of interest rate risk and qualified for hedge accounting. The interest rate swap has a starting notional amount of $63.7 million increasing to a maximum amount of $155.0 million, at a fixed rate of 4.709% with a maturity date of October 18, 2010 and will be used to hedge the risk of interest cash outflows on unsecured variable rate debt. The fair value of the hedge at December 31, 2007 was $(2.7) million and is included in other liabilities and accumulated other comprehensive income in the accompanying consolidated balance sheet.
Terminated Derivatives
In July 2007, in anticipation of an expected debt offering, the Partnership entered into four treasury lock agreements. The treasury lock agreements were designated as cash flow hedges on interest rate risk and qualified for hedge accounting. The treasury lock agreements have an expiration of 5 years with the following trade dates, notional amounts and all-in rates:
Trade DateNotional AmountAll-in Rate
       July 10, 2007$50.0 million4.984%
       July 18, 2007$50.0 million4.915%
       July 20, 2007$25.0 million4.848%
       July 25, 2007$25.0 million4.780%
The agreements were settled on September 21, 2007, the original termination date of each agreement, at a total cost of $3.9 million. During the fourth quarter upon completion of the DRA transaction, the Partnership determined it was probable that the forecasted transaction would not occur and accordingly, recorded an expense for the residual balance of $3.7 million. During the quarter ended September 30, 2007, the Partnership recorded the ineffective portion of these agreements, totaling $0.2 million, in the accompanying consolidated statement of operations.
In March 2007, in anticipation of the offering of 2017 Notes, the Partnership entered into two treasury lock agreements. The treasury lock agreements were designated as cash flow hedges on interest rate risk and qualified for hedge accounting. Each of the treasury lock agreements were for notional amounts of $75.0 million for an expiration of 10 years at all-in rates of 4.5585% and 4.498%. The agreements were settled in April 2007 upon completion of the offering of the 2017 Notes at a total benefit of $1.1 million, with nominal ineffectiveness. This benefit was recorded as a component of accumulated other comprehensive income in the accompanying consolidated balance sheet and is being amortized over the term of the 2017 Notes.
In March 2006, in anticipation of the offering of the 2009 Notes, the 2012 Notes and the 2016 Notes, the Partnership entered into forward starting swaps. The forward starting swaps were designated as cash flow hedges of interest rate risk and qualified for hedge accounting. The forward starting swaps were for notional amounts totaling $200.0 million at an all-in-rate of 5.2%. Two of the forward starting swaps had a nine year maturity date and one had a ten year maturity date. The forward starting swaps were settled in March 2006 upon the completion of the offering of the 2009, 2012, and 2016 Notes at a total benefit of approximately $3.3 million with nominal ineffectiveness. The benefit was recorded as a component of accumulated other comprehensive income in the accompanying consolidated balance sheet and is being amortized to interest expense over the term of the unsecured notes.
The Partnership entered into two interest rate swaps in January 2006 aggregating $90 million in notional amount as part of its acquisition of Prentiss. The instruments were used to hedge the risk of interest cash outflows on secured variable rate debt on properties that were included as part of the real estate venture in which the Partnership purchased the remaining 49% of the minority interest partner’s share in March 2007. One of the swaps with a notional amount of $20 million had a maturity date of February 1, 2010 at an all-in rate of 4.675%. The other, with a notional amount of $70 million, had a maturity date of August 1, 2008 at an all in rate of 4.675%. The agreements were settled in April 2007 in connection with the repayment of five mortgage notes, at a total benefit of $0.4 million with nominal ineffectiveness.

F - 77


Concentration of Credit Risk
Concentrations of credit risk arise when a number of tenants related to the Partnership’s investments or rental operations are engaged in similar business activities, or are located in the same geographic region, or have similar economic features that would cause their inability to meet contractual obligations, including those to the Partnership, to be similarly affected. The Partnership regularly monitors its tenant base to assess potential concentrations of credit risk. Management believes the current credit risk portfolio is reasonably well diversified and does not contain any unusual concentration of credit risk. No tenant accounted for 10% or more of the Partnership’s rents during 2007, 2006 2005 and 2004. See Note 18 for geographic segment information.2005.
13.10.DISCONTINUED OPERATIONS
For the years ended December 31, 2007, 2006 2005 and 2004,2005, income from discontinued operations relates to 2844 properties containing approximately 4,074,6497,304,131 million net rentable square feet that the Partnership has sold since January 1, 2004 and two properties containing 8 buildings and one land parcel designated as held-for-sale as of December 31, 2006. The following table summarizes the balance sheet information for the two properties containing 8 buildings identified as held for sale at December 31, 2006 (in thousands):
     
Real Estate Investments:    
Operating Properties $110,709 
Accumulated depreciation  (6,050)
    
   104,659 
     
Other assets  21,357 
    
Total Assets Held for Sale $126,016 
    
     
Mortgage note payable and other liabilities $20,826 
    
2005.
The following table summarizes revenue and expense information for the 2844 properties sold since January 1, 2004 and the eight properties designated as held-for-sale as of December 31, 20062005 (in thousands):

F - 73


                        
 Years Ended December 31,  Years Ended December 31, 
 2006 2005 2004  2007 2006 2005 
Revenue:
  
Rents $43,410 $10,060 $8,336  $12,844 $84,064 $25,750 
Tenant reimbursements 5,314 1,010 1,120  1,531 6,967 1,503 
Termination fees  529  
Other 982 41 36  214 1,151 49 
              
Total revenue 49,706 11,111 9,492  14,589 92,711 27,302 
  
Expenses:
  
Property operating expenses 17,769 3,862 4,166  5,013 33,660 9,691 
Real estate taxes 6,145 1,316 1,441  1,644 10,921 3,140 
Depreciation & amortization 17,284 2,939 2,607  4,748 34,706 5,882 
              
Total operating expenses 41,198 8,117 8,214  11,405 79,287 18,713 
  
Operating income
 8,508 2,994 1,278  3,184 13,424 8,589 
 
Interest income 14 6    13 6 
Interest expense  (841)  (445)  (451)   (840)  (445)
              
  
Income from discontinued operations before gain on sale of interests in real estate and minority interest 7,681 2,555 827  3,184 12,597 8,150 
  
Net gain on sale of interests in real estate 18,486 2,196 3,136  25,743 20,243 2,196 
Minority interest — partners’ share of net gain on sale 1,757   
Minority interest — partners’ share of consolidated real estate venture  (2,239)   
Minority interest attributable to discontinued operations — common partnership units  (1,172)  (163)  (144)
Minority interest - partners’ share of net gain on sale   (1,757)  
Minority interest - partners’ share of consolidated real estate venture   (482)  
              
Income from discontinued operations $24,513 $4,588 $3,819  $28,927 $30,601 $10,346 
              
Discontinued operations have not been segregated in the consolidated statements of cash flows. Therefore, amounts for certain captions will not agree with respective data in the consolidated statements of operations.
14.11.MINORITY INTEREST IN CONSOLIDATED REAL ESTATE VENTURES
As of December 31, 2007, the Partnership owned interests in three consolidated real estate ventures that own three office properties containing approximately 0.4 million net rentable square feet. As of December 31, 2006, the Partnership owned interests in four consolidated real estate ventures that ownowned 15 office properties containing approximately 1.5 million net rentable square feet. On March 1, 2007, the Partnership acquired the remaining 49% interest in a real estate venture previously owned by Stichting Pensioenfonds ABP containing ten office properties for a purchase price of $63.7 million. The Partnership owned a 51% interest in this real estate venture through the acquisition of Prentiss on January 5, 2006. Minority interest in Real Estate Ventures represents the portion of these consolidated real estate ventures not owned by the Partnership.

F - 78


The minority interests associated with certain of the Real Estate Ventures, that have finite lives under the terms of the partnership agreements represent mandatorily redeemable interests as defined in SFAS 150. As of December 31, 20062007 and 2005,2006, the aggregate book value of these minority interests in the accompanying consolidated balance sheet was $0 and the Partnership believes that the aggregate settlement value of these interests was approximately $8.1 million. This amount is based on the estimated liquidation values of the assets and liabilities and the resulting proceeds that the Partnership would distribute to its Real Estate Venture partners upon dissolution, as required under the terms of the respective partnership agreements. Subsequent changes to the estimated fair values of the assets and liabilities of the consolidated Real Estate Ventures will affect the Partnership’s estimate of the aggregate settlement value. The partnership agreements do not limit the amount that the minority partners would be entitled to in the event of liquidation of the assets and liabilities and dissolution of the respective partnerships.
15.12.PARTNERS’ EQUITY
Earnings per Common Partnership Unit
The following table details the number of units and net income used to calculate basic and diluted earnings per common partnership unit (in thousands, except unit and per unit amounts; results may not add due to rounding):

F - 74


                                                
 For the years ended December 31,  For the years ended December 31, 
 2006 2005 2004  2007 2006 2005 
 Basic Diluted Basic Diluted Basic Diluted  Basic Diluted Basic Diluted Basic Diluted 
Income from continuing operations $(15,059) $(15,059) $39,262 $39,262 $59,118 $59,118  $29,672 $29,672 $(19,975) $(19,975) $33,667 $33,667 
Income from discontinued operations 25,685 25,685 4,751 4,751 3,963 3,963  28,927 28,927 30,601 30,601 10,346 10,346 
Income allocated to Preferred Units  (7,992)  (7,992)  (7,992)  (7,992)  (10,555)  (10,555)  (7,992)  (7,992)  (7,992)  (7,992)  (7,992)  (7,992)
Preferred Unit redemption/conversion benefit (charge)     4,500 4,500 
                          
 $2,634 $2,634 $36,021 $36,021 $57,026 $57,026  $50,607 $50,607 $2,634 $2,634 $36,021 $36,021 
                          
  
Weighted-average common partnership units outstanding 93,703,601 93,703,601 57,852,842 57,852,842 49,600,634 49,600,634  91,170,209 91,170,209 93,703,601 93,703,601 57,852,842 57,852,842 
Options, warrants and unvested restricted stock  518,524  258,320  236,915   49,128  518,524  258,320 
                          
Total weighted-average units outstanding 93,703,601 94,222,125 57,852,842 58,111,162 49,600,634 49,837,549  91,170,209 91,219,337 93,703,601 �� 94,222,125 57,852,842 58,111,162 
                          
  
Earnings per Common Partnership Unit  
Continuing operations $(0.25) $(0.24) $0.54 $0.54 $1.07 $1.07  $0.24 $0.24 $(0.30) $(0.30) $0.44 $0.44 
Discontinued operations 0.27 0.27 0.08 0.08 0.08 0.08  0.32 0.32 0.33 0.32 0.18 0.18 
                          
Total $0.03 $0.03 $0.62 $0.62 $1.15 $1.15  $0.56 $0.55 $0.03 $0.03 $0.62 $0.62 
                          
Common Partnership Unit and Preferred Mirror Units
The Company is the sole general partner of the Partnership and conducts substantially all its business and owns its assets through the Partnership and as a result does not have any significant assets, liabilities or operations, other than its investment in the Partnership’s Units, nor does it have any employees of its own. Pursuant to the Partnership Agreement, the Partnership reimburses the Company for all expenses incurred on behalf of its operations.
The Partnership issues partnership units to the Company in exchange for the contribution of the net proceeds of any equity security issuance by the Company. The number and terms of such partnership units correspond in number and terms of the related equity securities issued by the Company. In addition, the Partnership may also issue separate classes of partnership units. Historically, the Partnership has had the following types of partnership units outstanding (i) Preferred Partnership Units which have been issued to parties other than the Company (ii) Preferred Mirror Partnership Units which have been issued to the Company and (iii) Common Partnership Units which include both interests held by the Company and those held by other limited partners. Each of these interests are described in more detail below.

F - 79


Preferred Partnership Units
The Partnership issued 1,950,000 Series B Preferred Units for $97.5 million in 1998. The Preferred Units bore a preferred distribution of 7.25% per annum and had a stated value of $50.00 per share. The Preferred Units were convertible into Class A Limited Partnership Units at a conversion price of $28.00. As more fully discussed in the Common Partnership Unit section, the Class A Limited Partnership units are subject to certain redemption rights. Due to these redemption rights, the Series B Preferred Partnership Units limited partnership units have been excluded from partners’ capital and reflected at the greater of their liquidation preference or the Class A Limited Partnership redemption value as of the end of the periods presented based on the closing market price of Company’s common stock at December 31, 2006, 2005 and 2004, which was $33.25, $27.91 and $29.39 respectively. In February 2004, the Partnership redeemed all of its outstanding Series B Preferred Units for an aggregate price of $93.0 million, together with accrued but unpaid distributions from January 1, 2004. The Series B Preferred Units had an aggregate stated value of $97.5 million and accrued distributions at 7.25% per annum. The Partnership recorded a gain of $4.5 million related to the redemption as an adjustment to net income available to common partnership unitholders.
Preferred Mirror Partnership Units
In exchange for the proceeds received in corresponding offerings by the Company of preferred shares of beneficial interest, the Partnership has issued to the Company a corresponding amount of Preferred Mirror Partnership Units with terms consistent with that of the preferred securities issued by the Company.

F - 75


On September 28, 1998, the Partnership issued 750,000 Series A Preferred Mirror Units to the Company in exchange for its contribution of the net proceeds of its Series A Preferred Shares. The 750,000 Series A Preferred Mirror Units had an aggregate liquidation preference of $37.5 million, or $50.00 per unit. Cumulative distributions on the Series A Preferred Mirror Units were payable quarterly at an annualized rate of 7.25% of the liquidation preference. In November 2004, the holders of the Series A Preferred Shares converted the shares into 1.3 million common shares of the Company at a price of $24.00 and the Partnership converted the Company’s Series A Preferred Mirror Units to 1.3 million Class A Units.
On December 30, 2003, the Partnership issued 2,000,000 Series D Preferred Mirror Units to Brandywine Realty Trust in exchange for its contribution of the proceeds of its Series C Preferred Shares. The 2,000,000 Series D Preferred Mirror Units outstanding have an aggregate liquidation preference of $50 million, or $25.00 per unit. Cumulative distributions on the Series D Preferred Mirror Units are payable quarterly at an annualized rate of 7.50% of the liquidation preference. In the event that any of the Series C Preferred Shares of Brandywine Realty Trust are redeemed, which may occur at the option of Brandywine Realty Trust at any time on or after December 30, 2008, then an equivalent number of Series D Preferred Mirror Units will be redeemed.
On February 27, 2004, the Partnership issued 2,300,000 Series E Preferred Mirror Units to Brandywine Realty Trust in exchange for its contribution of the net proceeds of its Series D Preferred Shares. The 2,300,000 Series E Preferred Mirror Units outstanding have an aggregate liquidation preference of $57.5 million, or $25.00 per unit. Cumulative distributions on the Series E Preferred Mirror Units are payable quarterly at an annualized rate of 7.375% of the liquidation preference. In the event that any of the Series D Preferred Shares of Brandywine Realty Trust are redeemed, which may occur at the option of Brandywine Realty Trust at any time on or after February 27, 2009, then an equivalent number of Series E Preferred Mirror Units will be redeemed.
Common Partnership Units (Redeemable and General)
The Partnership has two classes of Common Partnership Units: (i) Class A Limited Partnership Interest which are held by both the Company and outside third parties and (ii) General Partnership Interests which are held by the Company. (Collectively, the Class A Limited Partnership Interest and General Partnership Interests are referred to as “Common Partnership Units”). The holders of the Common Partnership Units are entitled to share in cash distributions from, and in profits and losses of, the Partnership, in proportion to their respective percentage interests, subject to preferential distributions on the preferred mirror units and the preferred units.
The Common Partnership Units held by the Company (comprised of both General Partnership Units and Class A Limited Partnership Units) are presented as partner’s equity in the consolidated financial statements. Class A Limited Partnership Interest held by parties other than the Company are redeemable at the option of the holder for a like number of common shares of the Company, or cash, or a combination thereof, at the election of the Company. Because the form of settlement of these redemption rights are not within the control of the Partnership, these Common Partnership Units have been excluded from partner’s equity and are presented as redeemable limited partnership units measured at the potential cash redemption value as of the end of the periods presented based on the closing market price of the Company’s common shares at December 31, 2007, 2006 2005 and 2004,2005, which was $17.93, $33.25 $27.91 and $29.39$27.91 respectively. As of December 31, 2007 and 2006, 3,838,230 and 2005 3,961,235 and 1,945,267 Class A Units were outstanding and owned by outside limited partners of the Partnership (See Note 18).Partnership.

F - 76


On August 15, 2006,During the Partnership acquired two office properties in Northern Virginia. In connection with these acquisitions, the Partnership issuedyear ended December 31, 2006, 424,608 Class A Units valued at $32.546 per unit totaling $13.8 million.units were issued in connection with the acquisitions of a property. These Class A units were subsequently redeemed for $13.5 million and this amount is included in distributions to minority interest holders on the consolidated statement of cash flows.
On December 19, 2006,11, 2007, the Partnership declared a distribution of $0.44 per common partnership unit,Common Share, totaling $39.0$38.5 million, which was paid on January 15, 200718, 2008 to unitholdersshareholders of record as of January 5,December 30, 2007. On December 19,11, 2006, the Partnership declared distributions on its Series C Preferred Shares and Series D Preferred Shares to holders of record as of December 30, 2006.January 4, 2008. These shares are entitled to a preferential return of 7.50% and 7.375%, respectively. Distributions paid on January 15, 2007 to holders of Series C Preferred Shares and Series D Preferred Shares totaled $0.9 million and $1.1 million, respectively.

F - 80


Common Share Repurchases
We maintainThe Company maintains a share repurchase program under which ourthe Board has authorized us to repurchase our common shares from time to time. OurThe Board initially authorized this program in 1998 and has periodically replenished capacity under the program, including, most recently, onprogram. On May 2, 2006 when ourthe Company’s Board restored capacity to 3.5 million common shares.
The Company repurchased 1.8 million shares during the year ended December 31, 2007 for aggregate consideration of $59.4 million under its share repurchase program. As of December 31, 2007, the Company may purchase an additional 0.5 million shares under the plan. 1.6 million of these shares are held in treasury to give the Company the ability to reissue such shares and are reflected as shares held in treasury on the consolidated balance sheet. 0.2 million of these shares were repurchased as part of the Company’s deferred compensation program and are not included as shares held in treasury on the consolidated balance sheet.
During the year ended December 31, 2006, wethe Company repurchased approximately 1.2 million common shares under this program at an average price of $29.22 per share. The shares repurchased in 2006 were retired and therefore are not included as shares held in treasury on the balance sheet.
Repurchases may be made from time to time in the open market or in privately negotiated transactions, subject to market conditions and compliance with legal requirements. The share leaving approximately 2.3 million in remaining capacity. Our Board hasrepurchase program does not limitedcontain any time limitation and does not obligate the duration ofCompany to repurchase any shares. The Company may discontinue the program.program at any time.
On October 4, 2006 wethe Company repurchased 1,829,0001.8 million common shares with a portion of the proceeds of our 3.875% Exchangeable Guaranteed Notes at an average purchase price of $32.80 per share (approximately $60.0 million in aggregate). WeThe Company repurchased these shares under a separate Board authorization that provided that the shares repurchased did not reduce capacity under the share repurchase program.
Share Based Compensation
In December 2004, the FASB issued SFAS No. 123(R), “Share-Based Payment” (“SFAS 123(R)”). SFAS 123(R) is an amendment of SFAS 123 and requires that the compensation cost relating to share-based payment transactions be recognized in the financial statements. The cost is required to be measured based on the fair value of the equity or liability instruments issued. SFAS 123(R) also contains additional minimum disclosures requirements including, but not limited to, the valuation method and assumptions used, amounts of compensation capitalized and modifications made. The effective date of SFAS 123(R) was subsequently amended by the SEC to be as of the beginning of the first interim or annual reporting period of the first fiscal year that begins on or after December 15, 2005, and allows several different methods of transition. The PartnershipCompany adopted SFAS 123(R) using the prospective method on January 1, 2006. This adoption did not have a material effect on our consolidated financial statements.
Stock Options
At December 31, 2006,2007, the Company had 1,286,0751,070,099 options outstanding under its shareholder approved equity incentive plan. No options were unvested as of December 31, 20062007 and therefore there is no remaining unrecognized compensation expense associated with these options. Option activity as of December 31, 20062007 and changes during the twelve months ended December 31, 20062007 were as follows:

F - 7781


                 
      Weighted  Weighted Average    
      Average  Remaining Contractual  Aggregate Intrinsic 
  Shares  Exercise Price  Term (in years)  Value (in 000’s) 
Outstanding at January 1, 2006  1,276,722   26.82   2.15   1,888 
Prentiss options converted to Company options as part of the Prentiss acquisition (see Note 3)  496,037   22.00   1.14   5,580 
Exercised  (486,684)  22.88   0.55   5,048 
Forfeited            
 
             
Outstanding at December 31, 2006  1,286,075  $26.45   1.50   8,739 
             
 
Vested at December 31, 2006  1,286,075  $26.45   1.50   8,739 
Exercisable at December 31, 2006  1,286,075  $26.45   1.50   8,739 
                 
      Weighted Weighted Average  
      Average Remaining Contractual Aggregate Intrinsic
  Shares Exercise Price Term (in years) Value (in 000’s)
Outstanding at January 1, 2007  1,286,075  $26.45   1.50  $8,739 
Exercised  (198,495) $28.80   0.87  $1,171 
Forfeited  (17,481)         
                 
                 
Outstanding at December 31, 2007  1,070,099  $26.13   0.54  $(8,775)
                 
                 
Vested at December 31, 2007 (1)  1,070,099  $26.13   0.54  $(8,775)
Exercisable at December 31, 2007 (1)  1,070,099  $26.13   0.54  $(8,775)
There were no option awards granted to employees during the years ended December 31, 2006, 2005, and 2004.
(1)There were 825,389 options that expired unexercised on January 1, 2008.
                         
  Years ended December 31,
  2005 2004
          Weighted         Weighted
          Average         Average
      Weighted Remaining     Weighted Remaining
      Average Contractual     Average Contractual
      Exercise Term     Exercise Term
  Shares Price (in Years) Shares Price (in Years)
                   
Outstanding at beginning of year  2,008,022   26.89       2,372,627   26.70     
 
Granted                    
Exercised  (705,678)  26.94       (337,161)  25.39     
Forfeite/Expired  (25,622)  28.80       (27,444)  28.93     
                     
 
Outstanding at end of year  1,276,722   26.82   1.97   2,008,022   26.89   2.88 
                   
 
Exercisable at end of year  1,276,722   26.82       2,008,022   26.89     
                     
The Company has the ability and intent to issue shares upon stock option exercises. Historically, the Company has issued new common shares to satisfy such exercises.
                         
  Years ended December 31,
  2006 2005
          Weighted         Weighted
          Average         Average
      Weighted Remaining     Weighted Remaining
      Average Contractual     Average Contractual
      Exercise Term     Exercise Term
  Shares Price (in Years) Shares Price (in Years)
Outstanding at beginning of year  1,276,722  $26.82       2,008,022  $26.89     
                         
Prentiss options converted to Company options as part of the Prentiss acquisition (See Note 3)  496,037  $22.00               
Exercised  (486,684) $22.88       (705,678) $26.94     
Forfeited/Expired            (25,622) $28.80     
                         
Outstanding at end of year  1,286,075  $26.45   1.50   1,276,722  $26.82   1.97 
                         
Exercisable at end of year  1,286,075  $26.45       1,276,722  $26.82     
                         
401(k) Plan
The PartnershipCompany sponsors a 401(k) defined contribution plan for its employees. Each employee may contribute up to 100% of annual compensation, subject to specific limitations under the Internal Revenue Code. At its discretion, the PartnershipCompany can make matching contributions equal to a percentage of the employee’s elective contribution and profit sharing contributions. Employees vest in employer contributions over a three-year service period. The PartnershipCompany contributions were $0.6 million in 2007, $1.1 million in 2006, and $1.0 million in 2005 and $0.9 million in 2004.2005.
Restricted Share Awards
The Company’s primary form of share-based compensation has been restricted common shares issued under a shareholder approved equity incentive plan that authorizes various equity-based awards. As of December 31, 2006, 338,8602007, 409,282 restricted shares were outstanding and vest over fiveunvested. The vesting period for these shares ranges from three to seven years from the initial grant date. The remaining compensation expense to be recognized for the 338,860409,282 restricted shares outstandingunvested at December 31, 20062007 was approximately $9.8$10.7 million. That expense is expected to be recognized over a weighted average remaining vesting period of 2.42.8 years. For the year ended December 31, 2006,2007, the Company recognized $2.9$3.3 million of compensation expense related to outstandingunvested restricted shares which is included in administrative expenses. The following table summarizes the Company’s restricted share activity for the twelve-months ended December 31, 2006:2007:

F - 7882


                
 Weighted  Shares Weighted
Average Grant
Date Fair value
 
 Average Grant 
 Shares Date Fair value 
Non-vested at January 1, 2006 316,134 $25.76 
Non-vested at January 1, 2007 338,860 $28.23 
Granted 240,136 30.72  227,709 34.94 
Vested  (160,972) 26.28   (107,143) 26.45 
Forfeited  (56,438) 28.24   (50,144) 32.28 
          
Non-vested at December 31, 2006 338,860 $28.23 
Non-vested at December 31, 2007 409,282 $31.91 
          
Outperformance Program
On August 28, 2006, the Compensation Committee of the Company’s Board of Trustees adopted a long-term incentive compensation program (the “outperformance program” ).). The Company will make payments (in the form of common shares) to executive-participants under the outperformance program only if the Company’s total shareholder return exceeds percentage hurdles established under the outperformance program. The dollar value of any payments will depend on the extent to which our performance exceeds the hurdles. The Company established the outperformance program under the 1997 Plan.
If the total shareholder return (share price appreciation plus cash dividends) during a three-year measurement period exceeds either of two hurdles (with one hurdle keyed to the greater of a fixed percentage and an industry-based index, and the other hurdle keyed to a fixed percentage), then the Company will fund an incentive compensation pool in accordance with a formula and make pay-outs from the compensation pool in the form of vested and restricted common shares. The awards issued are accounted for in accordance with FASB No. 123R.SFAS 123(R). The fair value of the awards on the date of grant,August 28, 2006, as adjusted for estimated forfeitures, was approximately $5.6 million and will be amortized into expense over the five-year period beginning on the date of grant using a graded vesting attribution model. The fair value of $5.6 million on the date of the initial grant represents approximately 89.9%86.5% of the total that may be awarded including the effects of a 3.4% forfeiture;awarded; the remaining amount available will be valued when the awards are granted to individuals. In January 2007, the Company awarded an additional 4.5% under the outperformance program. The fair value of the additional award is $0.3 million and will be amortized over the remaining portion of the 5 year period. On the date of each grant, the awards were valued using a Monte Carlo simulation. For the years ended December 31, 2007 and 2006, the Company recognized $1.4 million and $0.5 million, respectively, of compensation expense related to the outperformance program.
Employee Share Purchase Plan
On May 9, 2007, the Company’s shareholders approved the 2007 Non-Qualified Employee Share Purchase Plan (the “ESPP”). The ESPP is intended to provide eligible employees with a convenient means to purchase common shares of the Company through payroll deductions and voluntary cash purchases at an amount equal to 85% of the average closing price per share for a specified period. The maximum participant contribution for any plan year is limited to the lesser of 20% of compensation or $25,000. The number of shares reserved for issuance under the ESPP is 1.25 million. Employees will be eligible to make purchases under the ESPP beginning in January 2008, accordingly there were no purchases made during the year ended December 31, 2006, the Partnership recognized $0.5 million of compensation expenses related to the outperformance program.2007.

F - 83


16.
13.DISTRIBUTIONS
                        
 Years ended December 31, Years ended December 31,
 2006 2005 (a) 2004 2007 2006 2005 (a)
Common Partnership Unit Distributions:  
Total distributions per unit $1.76 $1.78 $1.76  $1.76 $1.76 $1.78 
  
Preferred Unit Distributions:  
Total distributions declared $7,992,000 $7,992,000 $10,555,000  $7,992,000 $7,992,000 $7,992,000 
 
(a) Includes a $0.02 special distribution declared in December 2005 for unitholders of record for the period January 1, 2006 through January 4, 2006 (pre-Prentiss merger period).
17.14.ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
The following table details the components of accumulated other comprehensive income (loss) as of and for the three years ended December 31, 20062007 (in thousands):

F - 79


                        
 Unrealized Gains Cash Flow Accumulated Other  Unrealized Gains Cash Flow Accumulated Other 
 (Losses) on Securities Hedges Comprehensive Loss  (Losses) on Securities Hedges Comprehensive Loss 
Balance at January 1, 2004 $868 $(3,026) $(2,158)
Balance at January 1, 2005 $16 $(3,146) $(3,130)
  
Change during year  (696) 309  (387) 241  (713)  (472)
Settlement of treasury locks   (3,238)  (3,238)  240 240 
Reclassification adjustments for losses reclassified into operations  (156) 2,809 2,653 
       
 
Balance at December 31, 2004 $16 $(3,146)  (3,130)
Change during year 241  (713)  (472)
Settlement of forward starting swaps  240 240 
Reclassification adjustments for losses reclassified into operations  (257) 450 193   (257) 450 193 
              
  
Balance at December 31, 2005 $ $(3,169) $(3,169)   (3,169)  (3,169)
 
Change during year  1,330 1,330   1,331 1,331 
Minority interest — consolidated real estate venture partner’s share of unrealized (gains)/losses on derivative financial instruments   (302)  (302)   (302)  (302)
Settlement of forward starting swaps  3,266    3,266 3,266 
Reclassification adjustments for (gains) losses reclassified into operations 328 122 3,716  328 122 450 
              
  
Balance at December 31, 2006 $328 $1,247 $1,575  328 1,248 1,576 
        
Change during year   (3,600)  (3,600)
Minority interest — consolidated real estate venture partner’s share of unrealized (gains)/losses on derivative financial instruments    
Settlement of treasury locks   (3,860)  (3,860)
Settlement of forward starting swaps  1,148 1,148 
Reclassification adjustments for (gains) losses reclassified into operations  (585) 3,436 2,851 
       
 
Balance at December 31, 2007 $(257) $(1,628) $(1,885)
       
Over time, the unrealized gains and losses held in Accumulated Other Comprehensive Income (“AOCI”) will be reclassified to earnings in the same period(s) in which hedged items are recognized in earnings. The current balance held in AOCI is expected to be reclassified to earnings over the lives of the current hedging instruments, or for realized losses on forecasted debt transactions, over the related term of the debt obligation, as applicable. As of December 31, 2007, AOCI includes unrealized losses of ($2.7) million and net realized gains of $1.1 million on cash flow hedges.
During the years ending December 31, 20062007 and 2005,2006, the Partnership reclassified approximately $0.1($0.1) million and $0.5$0.1 million, respectively, to interest expense associated with treasury lock agreements and forward starting swaps previously settled (see Note 12)7).

F - 84


18.
15.SEGMENT INFORMATION
The PartnershipAs of December 31, 2007, the Company currently manages its portfolio within nineseven segments: (1) Pennsylvania—West,Pennsylvania, (2) Pennsylvania—North,New Jersey/Delaware, (3) New Jersey, (4) Urban, (5) Richmond, Virginia, (6)(4) California—North, (7)(5) California—South, (8) Mid-Atlantic(6) Metropolitan Washington D.C and (9)(7) Southwest. The Pennsylvania—WestPennsylvania segment includes properties in Chester, Delaware, Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery counties in the Philadelphia suburbs of Pennsylvania. The Pennsylvania—North segment includes properties northand the City of Philadelphia in Berks, Bucks, Cumberland, Dauphin, Lehigh and Montgomery counties.Pennsylvania. The New JerseyJersey/Delaware segment includes properties in counties in the southern and central partspart of New Jersey including Burlington, Camden and Mercer counties and in Bucks County, Pennsylvania. The Urban segment includes properties in the City of Philadelphia, Pennsylvania and the state of Delaware. The Richmond, Virginia segment includes properties primarily in Albemarle, Chesterfield and Henrico counties, the City of Richmond and Durham, North Carolina. The California—North segment includes properties in the City of Oakland and Concord. The California—South segment includes properties in the City of Carlsbad and San Diego.Rancho Bernardo. The Mid-AtlanticMetropolitan Washington, D.C. segment includes properties in Northern Virginia and the Maryland suburbs.suburban Maryland. The Southwest segment includes properties in Dallas and Travis countiescounty of Texas. CorporateThe corporate group is responsible for cash and investment management, development of certain real estate properties during the construction period, and certain other general support functions. Land held for development and construction in progress are transferred to operating properties by region upon completion of the associated construction or project.

F - 8085


Segment information for the three years ended December 31, 2007, 2006 2005 and 20042005 is as follows (in thousands):
                                                                        
 New Jersey Richmond, California - California - Metropolitan,       
 Pennsylvania /Delaware Virginia North South D.C. Southwest Corporate Total 
2007: 
Real estate investments, at cost: 
Operating properties $1,682,839 $663,503 $348,310 $472,818 $106,303 $1,302,833 $236,957 $ $4,813,563 
Developed land and construction-in-progress $ $ $ $ $ $ $ $402,270 $402,270 
 
Total revenue $275,626 $120,461 $39,140 $64,989 $13,565 $134,596 $37,855 $(2,260) $683,972 
Property operating expenses and real estate taxes 104,393 53,382 14,445 26,565 5,571 47,032 16,440  (3,442) 264,386 
                   
Net operating income $171,233 $67,079 $24,695 $38,424 $7,994 $87,564 $21,415 $1,182 $419,586 
 Pennsylvania – Pennsylvania – Richmond, California - California -                        
 West North New Jersey Urban Virginia North South Mid-Atlantic Southwest  
2006:  
Real estate investments, at cost:  
Operating properties $922,347 $530,436 $570,009 $568,008 $244,519 $396,927 $95,942 $1,255,940 $343,177  $1,814,592 $681,574 $244,592 $414,856 $118,265 $1,265,818 $387,608 $ $4,927,305 
Construction-in-progress          
Land held for development          
Developed land and construction-in-progress $ $ $ $ $ $ $ $328,119 $328,119 
  
Total revenue $124,301 $74,391 $96,926 $85,995 $32,526 $58,203 $11,564 $112,344 $57,734  $246,422 $117,548 $33,317 $60,679 $14,326 $119,807 $33,586 $4,600 $630,285 
Property operating expenses and real estate taxes 39,163 38,124 41,334 34,362 11,876 23,016 4,039 33,897 23,872  99,085 49,871 12,441 24,494 5,435 39,981 11,951 149 243,407 
                                      
Net operating income $85,138 $36,267 $55,592 $51,633 $20,650 $35,187 $7,525 $78,447 $33,862  $147,337 $67,677 $20,876 $36,185 $8,891 $79,826 $21,635 $4,451 $386,878 
                                      
  
2005:  
Real estate investments, at cost: 
Operating properties $867,089 $558,803 $562,832 $351,407 $219,930 $ $ $ $ 
Construction-in-progress          
Land held for development          
 
Total revenue $111,911 $72,154 $96,683 $65,643 $28,758 $ $ $ $  $215,840 $117,606 $29,794 $ $ $ $ $1,195 $364,435 
Property operating expenses and real estate taxes 39,116 32,517 39,152 27,183 11,612      84,110 47,242 11,732      (1,366) 141,718 
                                      
Net operating income $72,795 $39,637 $57,531 $38,460 $17,146 $ $ $ $  $131,730 $70,364 $18,062 $ $ $ $ $2,561 $222,717 
                                      
 
2004: 
Total revenue $87,535 $73,882 $94,096 $26,319 $27,099 $ $ $ $ 
Property operating expenses and real estate taxes 25,677 31,079 35,599 12,126 11,772     
                   
Net operating income $61,858 $42,803 $58,497 $14,193 $15,327 $ $ $ $ 
                   

F - 8186


Net operating income is defined as total revenue less property operating expenses and real estate taxes. Segment net operating income includes revenue, real estate taxes and property operating expenses directly related to operation and management of the properties owned and managed within the respective geographical region. Segment net operating income excludes property level depreciation and amortization, revenue and expenses directly associated with third party real estate management services, expenses associated with corporate administrative support services, and inter-company eliminations. Below is a reconciliation of consolidated net operating income to consolidated income from continuing operations:
                        
 Year Ended December 31,  Year Ended December 31, 
 2006 2005 2004  2007 2006 2005 
 (amounts in thousands)  (amounts in thousands) 
Consolidated net operating income (loss) $409,216 $231,252 $200,304  $419,586 $386,878 $222,717 
Less:  
Interest income 9,513 1,370 841 
Interest expense  (171,177)  (70,152)  (52,642)  (162,675)  (171,177)  (70,380)
Deferred financing costs  (4,607)  (3,766)  (1,968)  (4,496)  (4,607)  (3,540)
Loss on settlement of treasury lock agreements  (3,698)   
Depreciation and amortization  (248,132)  (109,118)  (77,521)  (242,312)  (230,710)  (106,175)
Administrative expenses  (29,644)  (17,982)  (15,100)  (28,182)  (29,644)  (17,982)
Minority interest — partners’ share of consolidated real estate ventures 270  (154) 206   (465) 270  (154)
Plus:  
Interest income 4,040 9,513 1,370 
Equity in income of real estate ventures 2,165 3,172 2,023  6,955 2,165 3,171 
Net gain on sales of interests in real estate 14,190 4,640 2,975 
Net gain on sales of interests in depreciated real estate 40,498   
Net gain on sales of interests in undepreciated real estate 421 14,190 4,640 
Gain on termination of purchase contract 3,147     3,147  
              
Income (loss) from continuing operations  (15,059) 39,262 59,118  29,672  (19,975) 33,667 
Income (loss) from discontinued operations 25,685 4,751 3,963  28,927 30,601 10,346 
              
Net income (loss) $10,626 $44,013 $63,081  $58,599 $10,626 $44,013 
              
19.16.RELATED-PARTY TRANSACTIONS
In 1998, the Board authorized the Company to make loans totaling up to $5.0 million to enable employees of the Partnership to purchase Common Shares at fair market value. The loans have five-year terms, are full recourse, and are secured by the Common Shares purchased. The Company made loans under this program in 1998, 1999 and 2001. Interest, payable quarterly, accruedaccrues on the loans at the lower of the interest rate borne on borrowings under the Partnership’s Credit Facility or a rate based on the dividend payments on the Common Shares. As of December 31, 2005, the interest rate was 4.18% per annum. The loans wereare payable at the earlier of the stated maturity date or 90 days following the employee’s termination. As of December 31, 2005, the outstanding balance of the loan totaled $0.3 million and was secured by an aggregate of 18,803 common shares.Common Shares. These loans were repaid in full by December 31, 2006.
The Partnership held a fifty percent economic interest in an approximately 141,724 square foot office building located at 101 Paragon Drive, Montvale, New Jersey. The remaining fifty percent interest was held by Donald E. Axinn, one of the Company’s Trustees. Although the Partnership and Mr. Axinn had each committed to provide one half of the $11 million necessary to repay the mortgage loan secured by this property at the maturity of the loan, in February 2006 an unaffiliated third party entered into an agreement to purchase this property for $18.3 million. As a result of the purchase by an unaffiliated third party during August 2006, the Partnership recognized a $3.1 million gain on termination of its rights under a 1998 contribution agreement, modified in 2005, that entitled the Partnership to the 50% interest in the joint venture to operate the property. This gain is shown separately on the Partnership’s income statement as a gain on termination of purchase contract.
The Partnership owned 384,615 shares of Cypress Communications, Inc. (“Cypress”) common stock.Common Stock. These shares were redeemed in July 2005 for $0.3 million. The redemption was the result of Cypress’s merger with another company. Prior to this merger, an officer of the Company held a position on Cypress’s Board of Directors.

F - 87


20.
17.OPERATING LEASES
The Partnership leases properties to tenants under operating leases with various expiration dates extending to 2023.2030. Minimum future rentals on non-cancelable leases at December 31, 20062007 are as follows (in thousands):

F - 82


        
Year Minimum Rent Minimum Rent
2007 $526,755 
2008 488,853  $515,156 
2009 426,608   467,402 
2010 49,210   402,579 
2011 264,411   337,340 
2012  277,940 
Thereafter 879,490   1,323,580 
Total minimum future rentals presented above do not include amounts to be received as tenant reimbursements for operating costs.
21.18.COMMITMENTS AND CONTINGENCIES
Legal Proceedings
The Partnership is involved from time to time in litigation on various matters, including disputes with tenants and disputes arising out of agreements to purchase or sell properties. Given the nature of the Partnership’s business activities, these lawsuits are considered routine to the conduct of its business. The result of any particular lawsuit cannot be predicted, because of the very nature of litigation, the litigation process and its adversarial nature, and the jury system. The Partnership does not expect that the liabilities, if any, that may ultimately result from such legal actions will have a material adverse effect on the consolidated financial position, results of operations or cash flows of the Partnership.
There have been recent reports of lawsuits against owners and managers of multifamily and office properties asserting claims of personal injury and property damage caused by the presence of mold in residential units or office space. The Partnership has been named as a defendant in two lawsuits in the State of New Jersey that allege personal injury as a result of the presence of mold. In 2005, one lawsuit was dismissed by way of summary judgment with prejudice. Unspecified damages are sought on the remaining lawsuit. The Partnership has referred this lawsuit to its environmental insurance carrier and, as of the date of this Form 10-Q,10-K, the insurance carrier is tendering a defense to this claim.
Letters-of-Credit
Under certain mortgages, the Partnership has funded required leasing and capital reserve accounts for the benefit of the mortgage lenders with letters-of-credit which totaled $24.2$13.5 million at December 31, 2006.2007. The Partnership is also required to maintain escrow accounts for taxes, insurance and tenant security deposits and these accounts aggregated $22.6$7.5 million at December 31, 2006.2007. Tenant rents at properties that secure these mortgage loans are deposited into the loan servicer’s depository accounts, which are used to fund debt service, operating expenses, capital expenditures and the escrow and reserve accounts, as necessary. Any excess cash is included in cash and cash equivalents.
Ground Rent
Future minimum rental payments under the terms of all non-cancelable ground leases under which the Partnership is the lessee are expensed on a straight-line basis regardless of when payments are due. Minimum future rentalsrental payments on non-cancelable leases at December 31, 20062007 are as follows (in thousands):

F - 88


       
2007 $1,736 
2008 1,736  $1,736 
2009 1,736  1,986 
2010 1,818  2,318 
2011 1,818  2,318 
2012 2,318 
Thereafter 271,340  291,420 
Certain of the land leases provide for prepayment of rent on a present value basis using a fixed discount rate. Further, certain of the land lease for properties (currently under development) provide for contingent rent participation by the lessor in certain capital transactions and net operating cash flows of the property after certain returns are achieved by the Operating Partnership. Such amounts, if any, will be reflected as contingent rent when incurred. The leases also provide for payments by the Operating Partnership of certain operating costs relating to the land, primarily real estate taxes. The above schedule of future minimum rental payments do not include any contingent rent amounts nor any reimbursed expenses.
Other Commitments or Contingencies
As of December 31, 2006,2007, the Partnership owned 490417 acres of land for future development.

F - 83


As part of the Partnership’s September 2004 acquisition of a portfolio of properties from The Rubenstein Company (which the Partnership refers to as the TRC Properties in September 2004,acquisition), the Partnership agreed to issue to the sellers up to a maximum of $9.7 million of Class A Units of the Operating Partnership if certain of the acquired properties achieveachieved at least 95% occupancy prior to September 21, 2007. The maximum number of Units that the Partnership is obligatedagreed to issue declinesdeclined monthly and as of December 31, 2006,expired on September 21, 2007 and the maximum amount payable under this arrangement was $1.8 million, withPartnership had no amount currently due.obligation.
As part of the TRC acquisition, the Partnership acquired its interest in Two Logan Square, a 696,477 square foot office building in Philadelphia, primarily through its ownership of a second and third mortgage secured by this property. This property is consolidated as the borrower is a variable interest entity and the Partnership, through its ownership of the second and third mortgages, is the primary beneficiary. The Partnership currently does not expect to take title to Two Logan Square until, at the earliest, September 2019. In the event thatIf the Partnership takes fee title to Two Logan Square upon a foreclosure of its mortgage, the Partnership has agreed to make a payment topay an unaffiliated third party withthat holds a residual interest in the fee owner of this property. Theproperty an amount of the payment would beequal to $0.6 million if the Partnership(if we must pay a state and local transfer upon taking title,title) and $2.9 million if(if no transfer tax is payable upon the transfer.transfer).
As part of itsthe Partnership’s 2006 acquisition of Prentiss Properties Trust, the TRC Propertiesacquisition in 2004 and several of our other acquisitions,transactions, the Partnership agreed not to sell certain of the properties it acquired properties.in transactions that would trigger taxable income to the former owners. In the case of the TRC Properties,acquisition, the Partnership agreed not to sell the acquired properties for periods ranging from threeup to 15 years from the acquisition date as follows: 201 Radnor Financial Center,King of Prussia Road, 555 Radnor Financial CenterEast Lancaster Avenue and 300 Delaware Avenue (three years)(January 2008); One Rodney Square and 130/150/170 Radnor Financial Center (10 years)(January 2015); and One Logan Square, Two Logan Square and Radnor Corporate Center (15 years)(January 2020). At December 31, 2006,In the Prentiss acquisition, the Partnership had agreedassumed the obligation of Prentiss not to sell Concord Airport Plaza before March 2018 and 6600 Rockledge before July 2008. The Partnership also agreed not sell 14 other properties that contain an aggregate 1.0of 1.2 million square feet for periods that expire throughby the end of 2008. The Partnership’s agreements generally provide that the Partnershipit may dispose of the subject properties only in transactions that qualify as tax-free exchanges under Section 1031 of the Internal Revenue Code or in other tax deferred transactions. In the event thatIf the Partnership sells anywere to sell a restricted property before expiration of the properties within the applicable restricted period in a non-exempt transactions,transaction, the Partnership would be required to paymake significant tax liabilities that would be incurred bypayments to the parties who sold the Partnershipit the applicable property.property on account of tax liabilities attributed to them.
The Partnership invests in its properties and regularly incursincur capital expenditures in the ordinary course to maintain the properties. The Partnership believes that such expenditures enhance our competitiveness. The Partnership also enters into construction, utility and service contracts in the ordinary course of business which may extend beyond one year. These contracts typically provide for cancellation with insignificant or no cancellation penalties.
22.19.SUBSEQUENT EVENT
DuringOn January 2007,14, 2008, the Partnership sold two properties7130 Ambassador Drive, an office property located in Allentown, Pennsylvania containing eight buildings, classified as held for sale asan aggregate of December, 31, 2006, totaling 26.8 million114,049 net rentable square feet, and one land parcel consisting of 4.7 acres for an aggregate sales price of $114.9$5.8 million.
The Partnership paid off its $300.0 million 2009 three year notes in January 2007, notice of which was given in November 2006 using proceeds borrowed from the Company’s unsecured credit facility.

F - 8489


23.20.SUMMARY OF QUARTERLY RESULTS (UNAUDITED)
The following is a summary of quarterly financial information as of and for the years ended December 31, 20062007 and 20052006 (in thousands, except per share data):
                                
 1st 2nd 3rd 4th 1st 2nd 3rd 4th
 Quarter Quarter Quarter Quarter
2007: 
Total revenue $165,429 $166,637 $177,748 $174,158 
Net income 20,147 1,168 2,383 34,901 
Income (loss) allocated to Common Partnership Units 18,149  (830) 385 32,903 
 
Basic earnings (loss) per Common Partnership Units $0.20 $(0.01) $ $0.36 
Diluted earnings (loss) per Common Partnership Units $0.19 $(0.01) $ $0.36 
 Quarter Quarter Quarter Quarter 
2006:  
Total revenue $153,582 $161,523 $172,962 $174,734  $146,749 $153,347 $164,284 $165,905 
Net income (loss)  (2,850)  (12,171) 496 25,151   (2,850)  (12,171) 496 25,151 
Income (loss) allocated to Common Partnership Units  (4,848)  (14,169)  (1,502) 23,153   (4,848)  (14,169)  (1,502) 23,153 
  
Basic earnings per Common Partnership Units $(0.05) $(0.15) $(0.02) $0.25 
Diluted earnings per Common Partnership Units $(0.05) $(0.15) $(0.02) $0.25 
 
2005: 
Total revenue $96,690 $92,843 $93,431 $97,660 
Net income 9,691 9,185 16,280 8,856 
Income allocated to Common Partnership Units 7,693 7,187 14,282 6,858 
 
Basic earnings per Common Partnership Units $0.13 $0.12 $0.25 $0.12 
Diluted earnings per Common Partnership Units $0.13 $0.12 $0.25 $0.12 
Basic earnings (loss) per Common Partnership Units $(0.05) $(0.15) $(0.02) $0.25 
Diluted earnings (loss) per Common Partnership Units $(0.05) $(0.15) $(0.02) $0.25 
The summation of quarterly earnings per share amounts do not necessarily equal the full year amounts. The above information was updated to reclassify amounts to discontinued operations. See Note 10.

F - 8590


Brandywine Operating Partnership, L.P.
Schedule II
Valuation and Qualifying Accounts
(in thousands)
                                
 Balance at Balance  Balance at Balance 
 Beginning at End  Beginning at End 
Description of Period Additions (1) Deductions of Period  of Period Additions Deductions (2) of Period 
Allowance for doubtful accounts:  
Year ended December 31, 2006 $4,877 $4,434 $ $9,311 
 
Year ended December 31, 2007 $9,311 $2,147 $1,296 $10,162 
         
Year ended December 31, 2006 (1) $4,877 $4,434 $ $9,311 
                  
Year ended December 31, 2005 $4,085 $792 $ $4,877  $4,085 $792 $ $4,877 
                  
Year ended December 31, 2004 $4,031 $467 $413 $4,085 
         
 
(1) The 2006 additions includes $3.5 million of current year expense and $0.9 million of allowances against receivables assumed in the Prentiss acquisition.
(2)Deductions represent amounts that the Company had fully reserved for in prior periods and pursuit of collection of such amounts was ceased during the period.

F - 8691


BRANDYWINE OPERATING PARTNERSHIP, L.P.
Schedule III
Real Estate and Accumulated Depreciation - December 31, 2006
2007
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
One Greentree Centre Marlton NJ     345   4,440   804   345   5,244   5,589   3,031   1982   1986   40 
Three Greentree Centre Marlton NJ     323   6,024   590   324   6,614   6,937   4,289   1984   1986   40 
Two Greentree Centre Marlton NJ     264   4,693   312   264   5,005   5,269   3,311   1983   1986   40 
1155 Business Center Drive Horsham PA  2,407   1,029   4,124   783   1,029   4,906   5,936   1,436   1990   1996   40 
120 West Germantown Pike Plymouth Meeting PA     685   2,773   1,092   685   3,865   4,550   1,525   1984   1996   40 
140 West Germantown Pike Plymouth Meeting PA     481   1,976   554   482   2,530   3,011   929   1984   1996   40 
18 Campus Boulevard Newtown Square PA  3,227   787   3,312   5   787   3,317   4,104   1,156   1990   1996   40 
2240/2250 Butler Pike Plymouth Meeting PA     1,104   4,627   331   1,104   4,959   6,062   1,939   1984   1996   40 
2260 Butler Pike Plymouth Meeting PA     661   2,727   315   662   3,042   3,703   1,000   1984   1996   40 
3329 Street Road -Greenwood Square Bensalem PA     350   1,401   590   350   1,991   2,341   896   1985   1996   40 
3331 Street Road -Greenwood Square Bensalem PA     1,126   4,511   1,295   1,126   5,806   6,932   2,002   1986   1996   40 
3333 Street Road -Greenwood Square Bensalem PA     851   3,407   966   851   4,374   5,224   1,654   1988   1996   40 
456 Creamery Way Exton PA     635   2,548   (47)  635   2,500   3,136   824   1987   1996   40 
457 Haddonfield Road Cherry Hill NJ  10,689   2,142   9,120   490   2,142   9,610   11,752   3,340   1990   1996   40 
468 Thomas Jones Way Exton PA     526   2,112   163   527   2,275   2,801   747   1990   1996   40 
486 Thomas Jones Way Exton PA     806   3,256   159   806   3,415   4,221   1,206   1990   1996   40 
500 Enterprise Drive Horsham PA     1,303   5,188   (253)  1,303   4,935   6,238   1,778   1990   1996   40 
500 North Gulph Road King Of Prussia PA     1,303   5,201   1,255   1,303   6,456   7,759   2,246   1979   1996   40 
650 Dresher Road Horsham PA  1,609   636   2,501   404   636   2,905   3,541   1,108   1984   1996   40 
6575 Snowdrift Road Allentown PA     601   2,411   437   601   2,848   3,449   822   1988   1996   40 
700 Business Center Drive Horsham PA  1,625   550   2,201   848   550   3,049   3,599   1,248   1986   1996   40 
7248 Tilghman Street Allentown PA     731   2,969   (32)  731   2,937   3,668   980   1987   1996   40 
7310 Tilghman Street Allentown PA     553   2,246   510   553   2,755   3,309   1,178   1985   1996   40 
800 Business Center Drive Horsham PA  2,098   896   3,585   18   896   3,603   4,499   1,150   1986   1996   40 
8000 Lincoln Drive Marlton NJ     606   2,887   688   606   3,575   4,181   1,184   1997   1996   40 
One Progress Drive Horsham PA     1,399   5,629   232   1,399   5,861   7,260   1,936   1986   1996   40 
One Righter Parkway Wilmington DE  10,076   2,545   10,195   563   2,545   10,757   13,303   3,440   1989   1996   40 
1 Foster Avenue Gibbsboro NJ     93   364   42   93   406   499   116   1972   1997   40 
10 Foster Avenue Gibbsboro NJ     244   971   233   244   1,203   1,448   356   1983   1997   40 
100 Berwyn Park Berwyn PA  6,884   1,180   7,290   1,560   1,180   8,850   10,030   2,685   1986   1997   40 
100 Commerce Drive Newark DE     1,160   4,633   1,134   1,160   5,768   6,927   1,808   1989   1997   40 
100 Katchel Blvd Reading PA     1,881   7,423   158   1,881   7,582   9,462   2,183   1970   1997   40 
1000 Atrium Way Mt. Laurel NJ     2,061   8,180   1,065   2,061   9,245   11,306   2,599   1989   1997   40 
1000 Howard Boulevard Mt. Laurel NJ     2,297   9,288   1,328   2,297   10,616   12,913   3,402   1988   1997   40 
10000 Midlantic Drive Mt. Laurel NJ     3,206   12,857   1,100   3,206   13,957   17,163   4,347   1990   1997   40 
100-300 Gundy Drive Reading PA     6,495   25,180   7,583   6,495   32,763   39,258   9,563   1970   1997   40 
1007 Laurel Oak Road Voorhees NJ     1,563   6,241   16   1,564   6,256   7,820   1,754   1996   1997   40 
1120 Executive Boulevard Marlton NJ     2,074   8,415   541   2,074   8,956   11,030   2,864   1987   1997   40 
1336 Enterprise Drive West Goshen PA     731   2,946   52   731   2,998   3,729   926   1989   1997   40 
15000 Midlantic Drive Mt. Laurel NJ     3,061   12,254   165   3,061   12,419   15,480   3,710   1991   1997   40 
17 Campus Boulevard Newtown Square PA  5,002   1,108   5,155   48   1,108   5,203   6,311   1,357   2001   1997   40 
2 Foster Avenue Gibbsboro NJ     185   730   42   185   772   957   225   1974   1997   40 
20 East Clementon Road Gibbsboro NJ     769   3,055   496   769   3,552   4,320   1,072   1986   1997   40 
200 Berwyn Park Berwyn PA  9,415   1,533   9,460   2,071   1,533   11,531   13,064   3,386   1987   1997   40 
2000 Midlantic Drive Mt. Laurel NJ  9,160   2,202   8,823   780   2,203   9,602   11,805   3,083   1989   1997   40 
220 Commerce Drive Fort Washington PA     1,086   4,338   945   1,010   5,359   6,369   1,537   1985   1997   40 
300 Berwyn Park Berwyn PA  12,594   2,206   13,422   2,618   2,206   16,041   18,246   4,878   1989   1997  ��40 
300 Welsh Road — Building I Horsham PA  2,370   894   3,572   978   894   4,550   5,444   1,352   1980   1997   40 
321 Norristown Road Lower Gwyned PA     1,290   5,176   1,580   1,221   6,825   8,046   2,268   1988   1997   40 
323 Norristown Road Lower Gwyned PA     1,685   6,751   4,263   1,601   11,098   12,699   3,471   1988   1997   40 
4 Foster Avenue Gibbsboro NJ     183   726   93   183   820   1,002   255   1974   1997   40 
4000 Midlantic Drive Mt. Laurel NJ  2,980   714   5,085   (1,939)  714   3,146   3,860   951   1998   1997   40 
5 Foster Avenue Gibbsboro NJ     9   32   26   9   58   67   14   1968   1997   40 
5 U.S. Avenue Gibbsboro NJ     21   81   3   21   84   105   23   1987   1997   40 
50 East Clementon Road Gibbsboro NJ     114   964   3   114   967   1,081   271   1986   1997   40 
500 Office Center Drive Fort Washington PA     1,617   6,480   1,517   1,617   7,997   9,614   2,141   1974   1997   40 
501 Office Center Drive Fort Washington PA     1,796   7,192   13,223   1,796   20,415   22,211   4,538   1974   1997   40 
6 East Clementon Road Gibbsboro NJ     1,345   5,366   664   1,345   6,030   7,375   1,813   1980   1997   40 
655 Business Center Drive Horsham PA  1,698   544   2,529   696   544   3,225   3,769   1,282   1997   1997   40 
7 Foster Avenue Gibbsboro NJ     231   921   140   231   1,061   1,292   321   1983   1997   40 
748 Springdale Drive Exton PA     236   931   216   236   1,146   1,383   327   1986   1997   40 
855 Springdale Drive Exton PA     838   3,370   2,679   838   6,049   6,887   1,117   1986   1997   40 
9000 Midlantic Drive Mt. Laurel NJ  5,789   1,472   5,895   111   1,472   6,007   7,478   1,809   1989   1997   40 
Five Eves Drive Marlton NJ     703   2,819   772   703   3,592   4,294   1,090   1986   1997   40 
Four A Eves Drive Marlton NJ     539   2,168   243   539   2,411   2,950   764   1987   1997   40 
                                           
             Gross Amount at Which Carried       
          Initial Cost  December 31, 2007       
                  Net          
                  Improvements              Accumulated       
                  (Retirements)              Depreciation at       
      Encumberances at      Building and  Since      Building and      December 31,  Year of Year Depreciable
  City State December 31, 2007  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2007 (b)  Construction Acquired Life
CALIFORNIA NORTH                                          
                                           
1 Kaiser Plaza Oakland CA  48,359   15,034   107,422   3,748   15,318   110,886   126,204   6,801  1978 2006 46
2101 Webster Street Oakland CA  23,950   13,051   89,728   2,753   13,298   92,235   105,532   7,075  1985 2006 44
155 Grand Avenue Oakland CA     13,556   54,266   2   13,556   54,268   67,824   822  1990 2007 40
1901 Harrison Street Oakland CA  29,046   5,442   59,920   1,065   5,545   60,882   66,427   2,954  1985 2006 48
1333 Broadway Oakland CA     4,519   35,235   3,700   4,781   38,673   43,454   2,412  1972 2006 40
1200 Concord Avenue Concord CA  19,826   6,395   24,664   629   6,515   25,173   31,688   3,268  1984 2006 34
1220 Concord Avenue Concord CA  19,834   6,476   24,966   242   6,476   25,208   31,683   3,360  1984 2006 34
                                           
CALIFORNIA SOUTH
                                          
                                           
5780 & 5790 Fleet Street Carlsbad CA     7,073   22,907   3,211   7,516   25,675   33,191   1,871  1999 2006 55
16870 W Bernardo Drive San Diego CA     2,979   15,896   1,818   3,154   17,539   20,693   1,316  2002 2006 56
5900 & 5950 La Place Court Carlsbad CA     3,706   11,185   1,547   3,955   12,483   16,438   1,008  1988 2006 48
5963 La Place Court Carlsbad CA     2,824   9,413   1,595   2,999   10,833   13,832   722  1987 2006 55
5973 Avenida Encinas Carlsbad CA     2,121   8,361   1,163   2,256   9,389   11,645   890  1986 2006 45
2035 Corte Del Nogal Carlsbad CA     3,261   6,077   1,164   3,499   7,003   10,502   729  1991 2006 39
                                           
METROPOLITAN WASHINGTON, D.C.
                                          
                                           
1676 International Drive Mclean VA  63,259   18,437   97,538   1,013   18,785   98,203   116,988   4,590  1999 2006 55
2340 Dulles Corner Boulevard Herndon VA     16,345   65,379   14,950   16,467   80,206   96,674   3,652  1987 2006 40
2291 Wood Oak Drive Herndon VA     8,243   52,413   7,018   8,782   58,892   67,674   7,483  1999 2006 55
7101 Wisconsin Avenue Bethesda MD     9,634   48,402   3,542   9,816   51,762   61,577   3,287  1975 2006 45
3130 Fairview Park Drive Falls Church VA     6,576   51,605   1,539   6,700   53,020   59,720   2,656  1999 2006 53
196/198 Van Buren Street Herndon VA     7,931   43,812   6,887   8,348   50,282   58,630   3,713  1991 2006 53
2251 Corporate Park Drive Herndon VA     11,472   45,893   30   11,472   45,923   57,395   1,339  2000 2006 40
1900 Gallows Road Vienna VA     7,797   47,817   874   7,944   48,544   56,488   3,218  1989 2006 52
2355 Dulles Corner Boulevard Herndon VA     10,365   43,876   593   10,365   44,469   54,834   2,001  1988 2006 40
2411 Dulles Corner Park Herndon VA     7,279   46,340   586   7,417   46,789   54,205   3,188  1990 2006 50
3141 Fairview Park Drive Falls Church VA     5,918   40,981   656   6,050   41,506   47,556   2,243  1988 2006 51
13880 Dulles Corner Lane Herndon VA     7,236   39,213   395   7,373   39,470   46,843   2,337  1997 2006 55
2121 Cooperative Way Herndon VA     5,598   38,639   710   5,795   39,152   44,946   2,254  2000 2006 54
6600 Rockledge Drive Bethesda MD        37,421   6,303      43,725   43,725   1,654  1981 2006 50
8260 Greensboro Drive Mclean VA  34,063   7,952   33,964   645   8,102   34,459   42,561   2,150  1980 2006 52
2201 Cooperative Way Herndon VA     4,809   34,093   333   4,809   34,426   39,236   2,976  1990 2006 54
2273 Research Boulevard Rockville MD  15,285   5,167   31,110   2,890   5,237   33,929   39,166   2,140  1999 2006 45
8521 Leesburg Pike Vienna VA     4,316   30,885   668   4,397   31,472   35,869   2,052  1984 2006 51
2275 Research Boulevard Rockville MD  15,240   5,059   29,668   966   5,154   30,539   35,693   1,896  1990 2006 45
1880 Campus Commons Drive Reston VA     6,164   28,114   86   6,281   28,083   34,364   1,223  1985 2006 52
2277 Research Boulevard Rockville MD  14,181   4,649   26,952   (251)  4,733   26,616   31,350   1,215  1986 2006 45
7735 Old Georgetown Road Bethesda MD     4,370   23,192   (76)  4,453   23,034   27,487   1,372  1997 2006 45
12015 Lee Jackson Memorial Highway Fairfax VA     3,770   22,895   819   3,842   23,643   27,484   1,616  1985 2006 42
11720 Beltsville Drive Beltsville MD     3,831   16,661   4,891   3,904   21,479   25,382   1,434  1987 2006 46
13825 Sunrise Valley Drive Herndon VA     3,794   19,365   197   3,866   19,491   23,357   2,180  1989 2006 46
11781 Lee Jackson Memorial Highway Fairfax VA     3,246   19,836   176   3,307   19,951   23,259   1,532  1982 2006 40
11700 Beltsville Drive Beltsville MD     2,808   12,081   635   2,863   12,661   15,524   829  1981 2006 46
4401 Fair Lakes Court Fairfax VA     1,569   11,982   (81)  1,599   11,872   13,471   599  1988 2006 52
11710 Beltsville Drive Beltsville MD     2,278   11,100   (867)  2,321   10,190   12,511   651  1987 2006 46
3141 Fairview Park Drive Falls Church VA     733   4,939   (32)  733   4,906   5,640   230  1988 2006 51
3141 Fairview Park Drive Falls Church VA     297   1,964   0   297   1,964   2,261   80  1988 2006 51
11740 Beltsville Drive Bethesda MD     198   870   18   202   884   1,086   23  1987 2006 46
                                           
PENNSYLVANIA
                                          
                                           
2929 Arch Street Philadelphia PA        208,570   12,901      221,471   221,471   15,903  2005 N/A 40
130 North 18th Street Philadelphia PA     14,496   107,736   5,375   14,473   113,134   127,607   13,985  1998 2004 23
100 North 18th Street Philadelphia PA  71,564   16,066   100,255   4,676   16,066   104,931   120,997   12,388  1988 2004 33
150 Radnor Chester Road Radnor PA     11,925   36,986   9,248   11,897   46,262   58,159   6,204  1983 2004 29
555 Lancaster Avenue Radnor PA     8,014   16,508   25,073   8,609   40,985   49,595   3,720  1973 2004 24
201 King of Prussia Road Radnor PA     8,956   29,811   5,854   8,949   35,671   44,621   4,931  2001 2004 25
401 Plymouth Road Plymouth Meeting PA     6,198   16,131   15,998   6,199   32,129   38,327   6,028  2001 2000 40
One Radnor Corporate Center Radnor PA     7,323   28,613   (43)  7,323   28,570   35,893   3,891  1998 2004 29
Four Radnor Corporate Center Radnor PA     5,406   21,390   7,731   5,705   28,822   34,527   3,895  1995 2004 30
Five Radnor Corporate Center Radnor PA     6,506   25,525   1,835   6,578   27,288   33,866   3,046  1998 2004 38
101 West Elm Street W. Conshohocken PA     6,251   25,209   1,192   6,251   26,401   32,652   1,781  1999 2005 40
Three Radnor Corporate Center Radnor PA     4,773   17,961   787   4,791   18,730   23,521   2,476  1998 2004 29
400 Berwyn Park Berwyn PA     2,657   4,462   15,922   2,657   20,384   23,041   4,524  1999 1999 40
555 Croton Road King of Prussia PA     4,486   17,943   478   4,486   18,422   22,907   3,351  1999 2001 40
640 Freedom Business Center King Of Prussia PA     4,222   16,891   1,644   4,222   18,535   22,757   5,963  1991 1998 40
630 Allendale Road King of Prussia PA     2,836   4,028   15,509   2,636   19,737   22,373   5,713  2000 2000 40
101 Lindenwood Drive Malvern PA     4,152   16,606   1,496   4,152   18,103   22,254   3,547  1988 2001 40
52 Swedesford Square East Whiteland Twp. PA     4,241   16,579   263   4,241   16,842   21,083   4,382  1988 1998 40
Two Radnor Corporate Center Radnor PA     3,937   15,484   1,265   3,942   16,743   20,686   2,195  1998 2004 29

F - 8792


BRANDYWINE OPERATING PARTNERSHIP, L.P.
Schedule III
Real Estate and Accumulated Depreciation - December 31, 2006
2007
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
Four B Eves Drive Marlton NJ     588   2,369   327   588   2,696   3,284   814   1987   1997   40 
Main Street — Piazza Voorhees NJ     696   2,802   262   696   3,064   3,760   1,007   1990   1997   40 
Main Street — Plaza 1000 Voorhees NJ     2,732   10,942   3,627   2,732   14,569   17,301   4,886   1988   1997   40 
Main Street — Promenade Voorhees NJ     531   2,052   191   532   2,242   2,774   745   1988   1997   40 
Two Eves Drive Marlton NJ     818   3,461   (31)  818   3,429   4,248   1,087   1987   1997   40 
100 Gateway Centre Parkway Richmond VA     391   5,410   125   391   5,535   5,926   674   2001   1998   40 
1000 First Avenue King Of Prussia PA  3,054   2,772   10,936   703   2,772   11,639   14,411   2,869   1980   1998   40 
1009 Lenox Drive Lawrenceville NJ     4,876   19,284   3,139   4,876   22,422   27,299   7,008   1989   1998   40 
1020 First Avenue King Of Prussia PA  2,441   2,168   8,576   433   2,168   9,008   11,177   2,287   1984   1998   40 
1040 First Avenue King Of Prussia PA  3,277   2,860   11,282   1,036   2,860   12,318   15,178   3,084   1985   1998   40 
1060 First Avenue King Of Prussia PA  2,985   2,712   10,953   1,883   2,712   12,836   15,548   2,913   1987   1998   40 
14 Campus Boulevard Newtown Square PA  5,117   2,244   4,217   (22)  2,244   4,196   6,439   1,659   1998   1998   40 
150 Corporate Center Drive Camp Hill PA     964   3,871   239   964   4,109   5,074   1,146   1987   1998   40 
1957 Westmoreland Street Richmond VA  2,604   1,061   4,241   235   1,061   4,476   5,537   1,158   1975   1998   40 
200 Corporate Center Drive Camp Hill PA     1,647   6,606   164   1,647   6,771   8,417   1,817   1989   1998   40 
2100-2116 West Laburnam Avenue Richmond VA  552   2,482   8,846   2,300   2,482   11,146   13,628   2,847   1976   1998   40 
2130-2146 Tomlynn Street Richmond VA  985   353   1,416   289   353   1,705   2,058   499   1988   1998   40 
2161-2179 Tomlynn Street Richmond VA  1,040   423   1,695   222   423   1,917   2,340   497   1985   1998   40 
2201-2245 Tomlynn Street Richmond VA  2,576   1,020   4,067   283   1,020   4,351   5,370   1,172   1989   1998   40 
2212-2224 Tomlynn Street Richmond VA  1,211   502   2,014   72   502   2,085   2,588   536   1985   1998   40 
2221-2245 Dabney Road Richmond VA  1,250   530   2,123   203   530   2,326   2,856   595   1994   1998   40 
2240 Dabney Road Richmond VA  617   264   1,059   10   264   1,069   1,333   267   1984   1998   40 
2244 Dabney Road Richmond VA  1,291   550   2,203   38   550   2,241   2,791   563   1993   1998   40 
2246 Dabney Road Richmond VA  1,062   455   1,822   32   455   1,855   2,309   473   1987   1998   40 
2248 Dabney Road Richmond VA  1,337   512   2,049   200   512   2,249   2,761   601   1989   1998   40 
2251 Dabney Road Richmond VA  972   387   1,552   111   387   1,663   2,050   449   1983   1998   40 
2256 Dabney Road Richmond VA  847   356   1,427   275   356   1,702   2,058   409   1982   1998   40 
2277 Dabney Road Richmond VA  1,185   507   2,034   16   507   2,050   2,557   514   1986   1998   40 
2401 Park Drive Harrisburg PA     182   728   187   182   916   1,097   293   1984   1998   40 
2404 Park Drive Harrisburg PA     167   668   249   167   918   1,084   269   1983   1998   40 
2490 Boulevard of the Generals King Of Prussia PA     348   1,394   53   348   1,447   1,795   409   1975   1998   40 
2511 Brittons Hill Road Richmond VA  2,820   1,202   4,820   1,849   1,202   6,669   7,871   1,482   1987   1998   40 
2812 Emerywood Parkway Henrico VA  3,156   1,069   4,281   1,783   1,069   6,064   7,133   1,934   1980   1998   40 
300 Arboretum Place Richmond VA  13,832   5,450   21,892   1,827   5,450   23,719   29,169   6,429   1988   1998   40 
300 Corporate Center Drive Camp Hill PA     4,823   19,301   1,145   4,823   20,446   25,269   5,437   1989   1998   40 
303 Fellowship Drive Mt. Laurel NJ  1,789   1,493   6,055   584   1,494   6,638   8,132   1,696   1979   1998   40 
304 Harper Drive Moorestown NJ  777   657   2,674   379   657   3,052   3,710   769   1975   1998   40 
305 Fellowship Drive Mt. Laurel NJ  1,617   1,421   5,768   1,146   1,421   6,913   8,335   1,618   1980   1998   40 
305 Harper Drive Moorestown NJ  248   223   913   0   223   914   1,136   227   1979   1998   40 
307 Fellowship Drive Mt. Laurel NJ  1,761   1,565   6,342   382   1,565   6,725   8,289   1,660   1981   1998   40 
308 Harper Drive Moorestown NJ     1,643   6,663   499   1,644   7,161   8,805   1,991   1976   1998   40 
309 Fellowship Drive Mt. Laurel NJ  1,878   1,518   6,154   1,205   1,518   7,359   8,877   2,260   1982   1998   40 
33 West State Street Trenton NJ     6,016   24,091   (21)  6,016   24,070   30,086   6,451   1988   1998   40 
426 Lancaster Avenue Devon PA     1,689   6,756   361   1,689   7,118   8,806   1,922   1990   1998   40 
4364 South Alston Avenue Durham NC  1,915   1,622   6,419   728   1,581   7,188   8,769   1,952   1985   1998   40 
4805 Lake Brooke Drive Glen Allen VA  3,960   1,640   6,567   266   1,640   6,832   8,473   1,764   1996   1998   40 
50 East State Street Trenton NJ     8,926   35,735   773   8,926   36,508   45,434   9,946   1989   1998   40 
50 Swedesford Square East Whiteland Twp. PA  4,263   3,902   15,254   (15,254)  3,902      3,902      1986   1998   40 
500 Nationwide Drive Harrisburg PA     173   850   790   173   1,640   1,813   550   1977   1998   40 
52 Swedesford Square East Whiteland Twp. PA  4,661   4,241   16,579   878   4,241   17,457   21,698   4,540   1988   1998   40 
520 Virginia Drive Fort Washington PA     845   3,455   39   845   3,494   4,339   1,016   1987   1998   40 
600 Corporate Circle Drive Harrisburg PA     363   1,452   107   363   1,559   1,922   426   1978   1998   40 
600 East Main Street Richmond VA  11,206   9,808   38,255   5,668   9,808   43,923   53,731   11,744   1986   1998   40 
600 Park Avenue King Of Prussia PA     1,012   4,048   2   1,012   4,050   5,062   1,097   1964   1998   40 
610 Freedom Business Center King Of Prussia PA  5,014   2,017   8,070   674   2,017   8,745   10,761��  2,702   1985   1998   40 
620 Allendale Road King Of Prussia PA     1,020   3,839   998   1,020   4,837   5,857   1,774   1961   1998   40 
620 Freedom Business Center King Of Prussia PA  6,750   2,770   11,014   3,193   2,770   14,207   16,977   3,577   1986   1998   40 
630 Clark Avenue King Of Prussia PA     547   2,190   1   547   2,191   2,738   593   1960   1998   40 
630 Freedom Business Center King Of Prussia PA  6,655   2,773   11,144   668   2,773   11,812   14,585   3,337   1989   1998   40 
640 Freedom Business Center King Of Prussia PA  10,539   4,222   16,891   1,318   4,222   18,209   22,431   5,412   1991   1998   40 
650 Park Avenue King Of Prussia PA     1,916   4,378   2,491   1,916   6,869   8,785   1,845   1968   1998   40 
660 Allendale Road King of Prussia PA     396   3,343   (1,636)  396   1,706   2,103   708   1962   1998   40 
680 Allendale Road King Of Prussia PA     689   2,756   679   689   3,435   4,124   1,149   1962   1998   40 
6990 Snowdrift Road Allentown PA        1,962   3,696      5,658   5,658   764   2003   1998   40 
6990 Snowdrift Road Bldg B Allentown PA        2,581   958      3,539   3,539   272   2004   1998   40 
                                           
             Gross Amount at Which Carried       
          Initial Cost  December 31, 2007       
                  Net          
                  Improvements              Accumulated       
                  (Retirements)              Depreciation at       
      Encumberances at      Building and  Since      Building and      December 31,  Year of Year Depreciable
  City State December 31, 2007  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2007 (b)  Construction Acquired Life
600 West Germantown Pike Plymouth Meeting PA  11,441   3,652   15,288   1,470   3,652   16,758   20,410   2,698  1986 2002 40
620 West Germantown Pike Plymouth Meeting PA  11,212   3,572   14,435   1,938   3,572   16,373   19,945   3,103  1990 2002 40
630 West Germantown Pike Plymouth Meeting PA  11,060   3,558   14,743   1,383   3,558   16,125   19,684   2,700  1988 2002 40
610 West Germantown Pike Plymouth Meeting PA  11,083   3,651   14,514   1,488   3,651   16,001   19,653   2,639  1987 2002 40
300 Berwyn Park Berwyn PA  12,375   2,206   13,422   3,196   2,206   16,618   18,824   5,604  1989 1997 40
200 Barr Harbour Drive Conshohocken PA  14,472   2,827   15,525   (148)  2,827   15,377   18,204   4,992  1999 2004 40
1050 Westlakes Drive Berwyn PA     2,611   10,445   5,001      18,057   18,057   2,841  1984 1999 40
1 West Elm Street W. Conshohocken PA     3,557   14,249      3,557   14,249   17,806   802  1999 2005 40
181 Washington Street Conshohocken PA  10,518   2,672   14,221   241   2,673   14,462   17,134   5,430  1998 2004 40
620 Freedom Business Center King Of Prussia PA     2,770   11,014   3,188   2,770   14,202   16,972   4,123  1986 1998 40
1000 First Avenue King Of Prussia PA     2,772   10,936   2,272   2,772   13,208   15,980   3,311  1980 1998 40
301 Lindenwood Drive Malvern PA     2,729   10,915   2,301   2,729   13,216   15,945   2,644  1984 2001 40
1060 First Avenue King Of Prussia PA     2,712   10,953   1,890   2,712   12,843   15,555   3,383  1987 1998 40
1020 First Avenue King Of Prussia PA     2,168   8,576   4,755   2,168   13,331   15,499   2,690  1984 1998 40
1040 First Avenue King Of Prussia PA     2,860   11,282   1,041   2,860   12,323   15,183   3,488  1985 1998 40
595 East Swedesford Road Wayne PA     2,729   10,917   1,482   2,729   12,398   15,128   1,245  1998 2003 40
630 Freedom Business Center King Of Prussia PA     2,773   11,144   993   2,773   12,137   14,910   3,561  1989 1998 40
100 Brandywine Boulevard Newtown PA     1,784   9,811   3,007   1,784   12,818   14,602   2,541  2002 2000 40
1200 Swedesford Road Berwyn PA  4,427   2,595   11,809   1   2,595   11,809   14,405   324  1994 2001 40
980 Harvest Drive Blue Bell PA     2,079   7,821   4,235   2,079   12,056   14,135   2,133  1988 2002 40
170 Radnor Chester Road Radnor PA     2,514   8,147   3,446   2,509   11,598   14,107   1,106  1983 2004 25
920 Harvest Drive Blue Bell PA     2,433   9,738   1,573   2,433   11,312   13,744   3,225  1990 1998 40
200 Berwyn Park Berwyn PA  9,250   1,533   9,460   1,935   1,533   11,395   12,928   3,791  1987 1997 40
1180 Swedesford Road Berwyn PA     2,086   8,342   1,191   2,086   9,533   11,619   1,798  1987 2001 40
575 East Swedesford Road Wayne PA     2,178   8,712   456   2,178   9,168   11,346   1,060  1985 2003 40
130 Radnor Chester Road Radnor PA     2,573   8,338   163   2,567   8,506   11,074   846  1983 2004 25
610 Freedom Business Center King Of Prussia PA     2,017   8,070   542   2,017   8,612   10,629   2,529  1985 1998 40
565 East Swedesford Road Wayne PA     1,872   7,489   868   1,872   8,357   10,229   1,072  1984 2003 40
1160 Swedesford Road Berwyn PA     1,781   7,124   1,269   1,781   8,394   10,174   1,604  1986 2001 40
100 Berwyn Park Berwyn PA  6,765   1,180   7,290   1,557   1,180   8,847   10,027   3,102  1986 1997 40
925 Harvest Drive Blue Bell PA     1,671   6,606   1,114   1,671   7,720   9,391   2,189  1990 1998 40
14 Campus Boulevard Newtown Square PA  5,026   2,244   4,217   2,694   2,244   6,911   9,155   914  1998 1998 40
426 Lancaster Avenue Devon PA     1,689   6,756   369   1,689   7,126   8,814   2,108  1990 1998 40
650 Park Avenue King Of Prussia PA     1,916   4,378   2,502   1,916   6,880   8,796   2,215  1968 1998 40
1100 Cassett Road Berwyn PA     1,695   6,779   (0)  1,695   6,779   8,474   1,144  1997 2001 40
500 North Gulph Road King Of Prussia PA     1,303   5,201   1,386   1,303   6,587   7,890   2,393  1979 1996 40
855 Springdale Drive Exton PA     838   3,370   3,501   838   6,870   7,709   1,423  1986 1997 40
2930 Chestnut Street Philadelphia PA        7,688   0      7,688   7,688   96  #N/A 2007 40
2240/2250 Butler Pike Plymouth Meeting PA     1,104   4,627   1,558   1,104   6,185   7,289   2,235  1984 1996 40
One Progress Drive Horsham PA     1,399   5,629   230   1,399   5,859   7,258   2,075  1986 1996 40
412 Creamery Way Exton PA     1,195   4,779   911   1,195   5,690   6,885   1,279  1999 2001 40
429 Creamery Way Exton PA     1,368   5,471   19   1,368   5,490   6,858   934  1996 2001 40
585 East Swedesford Road Wayne PA     1,350   5,401   32   1,350   5,433   6,783   569  1998 2003 40
741 First Avenue King Of Prussia PA     1,287   5,151   219   1,287   5,369   6,657   1,661  1966 1998 40
875 First Avenue King Of Prussia PA     618   2,473   3,257   618   5,729   6,348   1,661  1966 1998 40
17 Campus Boulevard Newtown Square PA  4,914   1,108   5,155   46   1,108   5,201   6,309   1,597  2001 1997 40
440 Creamery Way Exton PA     982   3,927   1,313   982   5,240   6,222   875  1991 2001 40
479 Thomas Jones Way Exton PA     1,075   4,299   679   1,075   4,979   6,053   1,096  1988 2001 40
11 Campus Boulevard Newtown Square PA  4,498   1,112   4,067   825   1,112   4,892   6,004   1,104  1998 1999 40
620 Allendale Road King Of Prussia PA     1,020   3,839   989   1,020   4,828   5,848   2,009  1961 1998 40
500 Enterprise Drive Horsham PA     1,303   5,188   (659)  1,303   4,529   5,832   1,545  1990 1996 40
15 Campus Boulevard Newtown Square PA  5,622   1,164   3,896   672   1,164   4,568   5,732   769  2002 2000 40
300 Lindenwood Drive Malvern PA     848   3,394   1,316   849   4,710   5,558   652  1991 2001 40
436 Creamery Way Exton PA     994   3,978   583   994   4,560   5,555   789  1991 2001 40
751-761 Fifth Avenue King Of Prussia PA     1,097   4,391   31   1,097   4,422   5,519   1,298  1967 1998 40
467 Creamery Way Exton PA     906   3,623   882   906   4,505   5,411   826  1988 2001 40
Philadelphia Marine Center Philadelphia PA     532   2,196   2,680   628   4,780   5,408   755  Various 1998 40
600 Park Avenue King Of Prussia PA     1,012   4,048   336   1,012   4,384   5,396   1,203  1964 1998 40
100 Arrandale Boulevard Exton PA     970   3,878   274   970   4,152   5,122   691  1997 2001 40
442 Creamery Way Exton PA     894   3,576   391   894   3,967   4,861   835  1991 2001 40
1700 Paoli Pike Malvern PA     458   559   3,746   488   4,275   4,763   1,063  2000 2000 40
18 Campus Boulevard Newtown Square PA  3,168   787   3,312   571   787   3,883   4,670   1,354  1990 1996 40
2260 Butler Pike Plymouth Meeting PA     661   2,727   1,092   662   3,818   4,480   1,262  1984 1996 40
120 West Germantown Pike Plymouth Meeting PA     685   2,773   887   685   3,661   4,345   1,552  1984 1996 40
486 Thomas Jones Way Exton PA     806   3,256   194   806   3,450   4,256   1,306  1990 1996 40
457 Creamery Way Exton PA     777   3,107   306   777   3,413   4,190   679  1990 2001 40
680 Allendale Road King Of Prussia PA     689   2,756   678   689   3,434   4,123   1,267  1962 1998 40
7130 Ambassador Drive Allentown PA     761   3,046   160   761   3,206   3,967   780  1991 1999 40
1336 Enterprise Drive West Goshen PA     731   2,946   51   731   2,997   3,728   995  1989 1997 40
456 Creamery Way Exton PA     635   2,548   (48)  635   2,500   3,135   885  1987 1996 40
140 West Germantown Pike Plymouth Meeting PA     481   1,976   475   482   2,450   2,932   994  1984 1996 40
468 Thomas Jones Way Exton PA     526   2,112   163   527   2,274   2,801   843  1990 1996 40
100 Lindenwood Drive Malvern PA     473   1,892   376   473   2,268   2,741   622  1985 2001 40

F - 8893


BRANDYWINE OPERATING PARTNERSHIP, L.P.
Schedule III
Real Estate and Accumulated Depreciation - December 31, 2007
(in thousands)
                                           
             Gross Amount at Which Carried       
          Initial Cost  December 31, 2007       
                  Net          
                  Improvements              Accumulated       
                  (Retirements)              Depreciation at       
      Encumberances at      Building and  Since      Building and      December 31,  Year of Year Depreciable
  City State December 31, 2007  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2007 (b)  Construction Acquired Life
630 Clark Avenue King Of Prussia PA     547   2,190   0   547   2,190   2,737   643  1960 1998 40
481 John Young Way Exton PA     496   1,983   0   496   1,984   2,479   335  1997 2001 40
640 Allendale Road King of Prussia PA     439   432   1,480   439   1,912   2,351   327  2000 2000 40
660 Allendale Road King of Prussia PA     396   3,343   (1,637)  396   1,706   2,102   745  1962 1998 40
200 Lindenwood Drive Malvern PA     324   1,295   242   324   1,537   1,861   382  1984 2001 40
351 Plymouth Road Plymouth Meeting PA     1,043   555      1,043   555   1,598   38  N/A 2000 40
748 Springdale Drive Exton PA     236   931   275   236   1,206   1,442   387  1986 1997 40
111 Arrandale Road Exton PA     262   1,048   125   262   1,173   1,435   198  1996 2001 40
922 Swedesford Road Berwyn PA     218         218      218     N/A N/A 40
                                           
NEW JERSEY/DELAWARE
                                          
                                           
50 East State Street Trenton NJ     8,926   35,735   1,987   8,926   37,723   46,648   10,866  1989 1998 40
33 West State Street Trenton NJ     6,016   24,091   27   6,016   24,119   30,134   7,019  1988 1998 40
920 North King Street Wilmington DE     6,141   21,140   438   6,141   21,578   27,719   2,834  1989 2004 30
1009 Lenox Drive Lawrenceville NJ     4,876   19,284   3,326   5,057   22,430   27,486   7,222  1989 1998 40
525 Lincoln Drive West Marlton NJ     3,727   17,620   2,647   3,727   20,267   23,994   3,513  1986 2004 40
300 Delaware Avenue Wilmington DE     6,368   13,739   1,513   6,369   15,251   21,620   2,404  1989 2004 23
989 Lenox Drive Lawrenceville NJ     3,701   14,802   1,390   3,812   16,081   19,893   1,744  1984 2003 40
700 East Gate Drive Mt. Laurel NJ     3,569   14,436   1,565   3,569   16,001   19,570   4,513  1984 1998 40
10000 Midlantic Drive Mt. Laurel NJ     3,206   12,857   2,442   3,206   15,298   18,505   4,879  1990 1997 40
Main Street — Plaza 1000 Voorhees NJ     2,732   10,942   4,274   2,732   15,216   17,948   5,626  1988 1997 40
2000 Lenox Drive Lawrenceville NJ  13,236   2,291   12,221   3,155   2,648   15,019   17,667   5,115  2000 2000 40
One Righter Parkway Wilmington DE  9,853   2,545   10,195   4,820   2,545   15,015   17,560   4,415  1989 1996 40
993 Lenox Drive Lawrenceville NJ  11,379   2,811   17,996   (5,155)  2,922   12,729   15,652   4,067  1985 1998 40
15000 Midlantic Drive Mt. Laurel NJ     3,061   12,254   170   3,061   12,424   15,485   4,008  1991 1997 40
100 Brandywine Boulevard Newtown PA     1,784   9,811   3,007   1,784   12,818   14,602   2,541  2002 2000 40
1400 Howard Boulevard Mt. Laurel NJ     443      13,014   1,447   12,009   13,457   375  2005 2000 40
997 Lenox Drive Lawrenceville NJ  9,277   2,410   9,700   1,191   2,507   10,794   13,301   3,101  1987 1998 40
1000 Howard Boulevard Mt. Laurel NJ     2,297   9,288   1,316   2,297   10,604   12,901   3,778  1988 1997 40
1120 Executive Boulevard Marlton NJ     2,074   8,415   2,238   2,074   10,652   12,727   3,423  1987 1997 40
220 Lake Drive East Cherry Hill NJ     2,144   8,798   1,063   2,144   9,862   12,005   1,865  1988 2001 40
400 Commerce Drive Newark DE  11,575   2,528   9,220   86   2,528   9,306   11,834   1,699  1997 2002 40
457 Haddonfield Road Cherry Hill NJ  10,505   2,142   9,120   391   2,142   9,511   11,653   3,538  1990 1996 40
2000 Midlantic Drive Mt. Laurel NJ  8,959   2,202   8,823   528   2,203   9,351   11,553   3,213  1989 1997 40
1000 Atrium Way Mt. Laurel NJ     2,061   8,180   1,143   2,061   9,323   11,384   2,956  1989 1997 40
200 Lake Drive East Cherry Hill NJ     2,069   8,275   894   2,069   9,169   11,238   1,781  1989 2001 40
10 Lake Center Drive Marlton NJ     1,880   7,521   1,515   1,880   9,035   10,916   1,730  1989 2001 40
701 East Gate Drive Mt. Laurel NJ     1,736   6,877   828   1,736   7,705   9,441   2,457  1986 1998 40
Two Righter Parkway Wilmington DE     2,802   11,217   (4,688)  2,802   6,529   9,331   41  1987 2001 40
210 Lake Drive East Cherry Hill NJ     1,645   6,579   827   1,645   7,407   9,051   1,405  1986 2001 40
309 Fellowship Drive Mt. Laurel NJ     1,518   6,154   1,205   1,518   7,359   8,877   2,545  1982 1998 40
308 Harper Drive Moorestown NJ     1,643   6,663   497   1,644   7,159   8,803   2,223  1976 1998 40
305 Fellowship Drive Mt. Laurel NJ     1,421   5,768   1,262   1,421   7,030   8,451   1,897  1980 1998 40
307 Fellowship Drive Mt. Laurel NJ     1,565   6,342   481   1,565   6,824   8,388   1,878  1981 1998 40
303 Fellowship Drive Mt. Laurel NJ     1,493   6,055   617   1,494   6,671   8,165   1,904  1979 1998 40
1000 Lenox Drive Lawrenceville NJ     1,174   4,696   2,163   1,226   6,806   8,033   1,390  1982 2002 40
1000 Bishops Gate Mt. Laurel NJ     934   6,287      953   6,812   7,764   927  2005 2000 40
9000 Midlantic Drive Mt. Laurel NJ  5,662   1,472   5,895   109   1,472   6,005   7,476   1,952  1989 1997 40
6 East Clementon Road Gibbsboro NJ     1,345   5,366   457   1,345   5,823   7,168   1,826  1980 1997 40
100 Commerce Drive Newark DE     1,160   4,633   1,156   1,160   5,789   6,949   1,970  1989 1997 40
Three Greentree Centre Marlton NJ     323   6,024   558   324   6,582   6,905   4,473  1984 1986 40
200 Commerce Drive Newark DE  5,765   911   4,414   1,018   911   5,432   6,343   1,004  1998 2002 40
30 Lake Center Drive Marlton NJ     1,043   4,171   932   1,043   5,104   6,146   865  1986 2001 40
161 Gaither Drive Mount Laurel NJ     1,016   4,064   585   1,016   4,649   5,665   817  1987 2001 40
Two Greentree Centre Marlton NJ     264   4,693   600   264   5,293   5,557   3,522  1983 1986 40
One Greentree Centre Marlton NJ     345   4,440   613   345   5,054   5,398   3,015  1982 1986 40
Two Eves Drive Marlton NJ     818   3,461   56   818   3,517   4,335   1,201  1987 1997 40
Five Eves Drive Marlton NJ     703   2,819   771   703   3,590   4,293   1,269  1986 1997 40
4000 Midlantic Drive Mt. Laurel NJ  2,911   714   5,085   (1,524)  714   3,561   4,275   1,079  1998 1997 40
20 East Clementon Road Gibbsboro NJ     769   3,055   437   769   3,492   4,261   1,195  1986 1997 40
8000 Lincoln Drive Marlton NJ     606   2,887   659   606   3,545   4,152   1,405  1997 1996 40
304 Harper Drive Moorestown NJ     657   2,674   448   657   3,122   3,779   910  1975 1998 40
Main Street — Piazza Voorhees NJ     696   2,802   225   696   3,027   3,723   1,047  1990 1997 40
815 East Gate Drive Mt. Laurel NJ     636   2,584   307   636   2,891   3,527   796  1986 1998 40
Four B Eves Drive Marlton NJ     588   2,369   381   588   2,749   3,338   921  1987 1997 40
817 East Gate Drive Mt. Laurel NJ     611   2,426   152   611   2,578   3,189   697  1986 1998 40
Four A Eves Drive Marlton NJ     539   2,168   243   539   2,411   2,950   855  1987 1997 40
Main Street — Promenade Voorhees NJ     531   2,052   151   532   2,203   2,734   759  1988 1997 40
10 Foster Avenue Gibbsboro NJ     244   971   225   244   1,196   1,440   394  1983 1997 40
7 Foster Avenue Gibbsboro NJ     231   921   121   231   1,041   1,273   332  1983 1997 40
305 Harper Drive Moorestown NJ     223   913   0   223   913   1,136   248  1979 1998 40
50 East Clementon Road Gibbsboro NJ     114   964   3   114   967   1,081   293  1986 1997 40
4 Foster Avenue Gibbsboro NJ     183   726   84   183   811   993   279  1974 1997 40

F - 94


BRANDYWINE OPERATING PARTNERSHIP, L.P.
Schedule III
Real Estate and Accumulated Depreciation - December 31, 2006
2007
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
700 East Gate Drive Mt. Laurel NJ  4,102   3,569   14,436   1,540   3,569   15,977   19,545   4,064   1984   1998   40 
701 East Gate Drive Mt. Laurel NJ  2,048   1,736   6,877   842   1,736   7,719   9,455   2,186   1986   1998   40 
7010 Snowdrift Road Allentown PA  919   818   3,324   464  ��818   3,789   4,606   886   1991   1998   40 
7150 Windsor Drive Allentown PA  1,188   1,035   4,219   147   1,035   4,366   5,401   1,100   1988   1998   40 
7350 Tilghman Street Allentown PA     3,414   13,716   1,273   3,414   14,988   18,403   4,433   1987   1998   40 
741 First Avenue King Of Prussia PA     1,287   5,151   221   1,287   5,371   6,659   1,517   1966   1998   40 
7450 Tilghman Street Allentown PA  3,482   2,867   11,631   1,574   2,867   13,205   16,072   3,737   1986   1998   40 
751-761 Fifth Avenue King Of Prussia PA     1,097   4,391   32   1,097   4,423   5,520   1,197   1967   1998   40 
7535 Windsor Drive Allentown PA  4,514   3,376   13,400   5,528   3,376   18,928   22,304   4,808   1988   1998   40 
755 Business Center Drive Horsham PA  2,024   1,362   2,334   2,940   1,362   5,274   6,636   1,581   1998   1998   40 
800 Corporate Circle Drive Harrisburg PA     414   1,653   105   414   1,758   2,172   492   1979   1998   40 
815 East Gate Drive Mt. Laurel NJ  703   636   2,584   375   636   2,959   3,595   709   1986   1998   40 
817 East Gate Drive Mt. Laurel NJ  697   611   2,426   153   611   2,579   3,190   633   1986   1998   40 
875 First Avenue King Of Prussia PA     618   2,473   3,258   618   5,731   6,349   1,455   1966   1998   40 
9011 Arboretum Parkway Richmond VA  4,622   1,857   7,702   528   1,857   8,231   10,087   2,063   1991   1998   40 
9100 Arboretum Parkway Richmond VA  3,506   1,362   5,489   556   1,362   6,045   7,407   1,726   1988   1998   40 
920 Harvest Drive Blue Bell PA     2,433   9,738   649   2,433   10,387   12,820   2,708   1990   1998   40 
9200 Arboretum Parkway Richmond VA  2,506   985   3,973   133   985   4,107   5,091   1,040   1988   1998   40 
9210 Arboretum Parkway Richmond VA  2,906   1,110   4,474   583   1,110   5,057   6,167   1,363   1988   1998   40 
9211 Arboretum Parkway Richmond VA  1,458   582   2,433   286   582   2,719   3,301   704   1991   1998   40 
925 Harvest Drive Blue Bell PA     1,671   6,606   807   1,671   7,413   9,084   1,905   1990   1998   40 
993 Lenox Drive Lawrenceville NJ  11,638   2,811   17,996   (5,342)  2,811   12,654   15,465   3,670   1985   1998   40 
997 Lenox Drive Lawrenceville NJ  9,496   2,410   9,700   161   2,410   9,861   12,271   2,635   1987   1998   40 
Dabney III Richmond VA  777   281   1,125   309   281   1,435   1,715   416   1986   1998   40 
Philadelphia Marine Center Philadelphia PA     532   2,196   2,285   628   4,385   5,013   1,035  Various  1998   40 
1050 Westlakes Drive Berwyn PA     2,611   10,445   75      13,131   13,131   2,137   1984   1999   40 
11 Campus Boulevard Newtown Square PA  4,581   1,112   4,067   438   1,112   4,505   5,617   951   1998   1999   40 
400 Berwyn Park Berwyn PA     2,657   4,462   15,897   2,657   20,359   23,016   3,493   1999   1999   40 
630 Dresher Road Horsham PA     771   3,083   1,750   771   4,833   5,604   1,077   1987   1999   40 
7130 Ambassador Drive Allentown PA     761   3,046   161   761   3,207   3,968   693   1991   1999   40 
100 Brandywine Boulevard Newtown PA     1,784   9,811   2,987   1,784   12,798   14,582   2,102   2002   2000   40 
1400 Howard Boulevard Mt. Laurel NJ     443      13,238   1,447   12,233   13,681   77   2005   2000   40 
15 Campus Boulevard Newtown Square PA  5,723   1,164   3,896   673   1,164   4,570   5,733   594   2002   2000   40 
1700 Paoli Pike Malvern PA     458   559   3,582   488   4,111   4,599   861   2000   2000   40 
2000 Lenox Drive Lawrenceville NJ  13,538   2,291   12,221   2,803   2,291   15,024   17,315   4,450   2000   2000   40 
300 Welsh Road — Building II Horsham PA  977   396   1,585   129   396   1,714   2,110   505   1980   2000   40 
401 Plymouth Road Plymouth Meeting PA     6,198   16,131   17,430   6,199   33,560   39,759   6,347   2001   2000   40 
630 Allendale Road King of Prussia PA     2,836   4,028   15,955   2,836   19,983   22,819   5,150   2000   2000   40 
640 Allendale Road King of Prussia PA     439   432   1,480   439   1,913   2,351   269   2000   2000   40 
Bishops Gate Corporate Center Mt. Laurel NJ     934   6,287      934   6,799   7,733   588   2005   2000   40 
Macaroni Grill Plymouth Meeting PA     1,043   555      1,043   555   1,598   24   N/A   2000   40 
10 Lake Center Drive Marlton NJ     1,880   7,521   1,232   1,880   8,753   10,633   1,375   1989   2001   40 
100 Arrandale Boulevard Exton PA     970   3,878   1   970   3,880   4,849   559   1997   2001   40 
100 Lindenwood Drive Malvern PA     473   1,892   377   473   2,269   2,742   507   1985   2001   40 
101 Lindenwood Drive Malvern PA     4,152   16,606   1,575   4,152   18,182   22,333   2,916   1988   2001   40 
1100 Cassett Road Berwyn PA     1,695   6,779   2   1,695   6,781   8,476   976   1997   2001   40 
111 Arrandale Road Exton PA     262   1,048   69   262   1,117   1,379   156   1996   2001   40 
111/113 Pencader Drive Newark DE     1,092   4,366   68   1,092   4,434   5,526   641   1990   2001   40 
1160 Swedesford Road Berwyn PA     1,781   7,124   1,171   1,781   8,295   10,076   1,276   1986   2001   40 
1180 Swedesford Road Berwyn PA     2,086   8,342   1,065   2,086   9,407   11,493   1,465   1987   2001   40 
161 Gaither Drive Mount Laurel NJ     1,016   4,064   434   1,016   4,498   5,514   844   1987   2001   40 
200 Lake Drive East Cherry Hill NJ     2,069   8,275   748   2,069   9,023   11,092   1,434   1989   2001   40 
200 Lindenwood Drive Malvern PA     324   1,295   242   324   1,537   1,861   304   1984   2001   40 
210 Lake Drive East Cherry Hill NJ     1,645   6,579   546   1,645   7,125   8,770   1,136   1986   2001   40 
220 Lake Drive East Cherry Hill NJ     2,144   8,798   738   2,144   9,537   11,680   1,487   1988   2001   40 
30 Lake Center Drive Marlton NJ     1,043   4,171   130   1,043   4,301   5,344   686   1986   2001   40 
300 Lindenwood Drive Malvern PA     848   3,394   104   849   3,498   4,346   510   1991   2001   40 
301 Lindenwood Drive Malvern PA     2,729   10,915   1,868   2,729   12,783   15,512   2,076   1984   2001   40 
412 Creamery Way Exton PA     1,195   4,779   722   1,195   5,502   6,696   1,050   1999   2001   40 
429 Creamery Way Exton PA     1,368   5,471   2   1,368   5,473   6,841   788   1996   2001   40 
436 Creamery Way Exton PA     994   3,978   459   994   4,436   5,431   622   1991   2001   40 
440 Creamery Way Exton PA  2,905   982   3,927   1,004   982   4,931   5,913   707   1991   2001   40 
442 Creamery Way Exton PA  2,516   894   3,576   392   894   3,968   4,862   708   1991   2001   40 
457 Creamery Way Exton PA     777   3,107   272   777   3,379   4,156   537   1990   2001   40 
467 Creamery Way Exton PA     906   3,623   444   906   4,067   4,973   626   1988   2001   40 
                                           
             Gross Amount at Which Carried       
          Initial Cost  December 31, 2007       
                  Net          
                  Improvements              Accumulated       
                  (Retirements)              Depreciation at       
      Encumberances at      Building and  Since      Building and      December 31,  Year of Year Depreciable
  City State December 31, 2007  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2007 (b)  Construction Acquired Life
2 Foster Avenue Gibbsboro NJ     185   730   42   185   772   957   246  1974 1997 40
1 Foster Avenue Gibbsboro NJ     93   364   63   93   428   520   129  1972 1997 40
5 U.S. Avenue Gibbsboro NJ     21   81   3   21   84   105   25  1987 1997 40
5 Foster Avenue Gibbsboro NJ     9   32   26   9   58   67   16  1968 1997 40
                                           
SOUTHWEST
                                          
                                           
1250 Capital of Texas Hwy South Austin TX     5,152   37,928   3,512   5,250   41,343   46,593   3,024  1984 2006 52
1301 Mopac Expressway Austin TX     4,188   41,229   481   4,250   41,648   45,898   2,165  2001 2006 55
1601 Mopac Expressway Austin TX     3,538   34,346   2,267   3,605   36,547   40,151   2,524  2000 2006 54
1501 South Mopac Expressway Austin TX     3,698   34,912   1,150   3,768   35,992   39,759   3,433  1999 2006 53
1221 Mopac Expressway Austin TX     3,290   31,548   652   3,369   32,120   35,489   1,926  2001 2006 55
1177 East Beltline Road Coppell TX  20,112   1,516   14,895   8   1,517   14,903   16,420   1,246  1998 2006 42
1801 Mopac Expressway Austin TX     1,227   10,959   460   1,250   11,395   12,646   553  1999 2006 53
                                           
RICHMOND
                                          
                                           
600 East Main Street Richmond VA     9,808   38,255   5,632   9,808   43,887   53,695   13,231  1986 1998 40
300 Arboretum Place Richmond VA  13,513   5,450   21,892   1,864   5,450   23,757   29,206   7,061  1988 1998 40
7501 Boulders View Drive Richmond VA     4,925   19,699   257   5,181   19,700   24,881   206  1990 2007 40
7300 Beaufont Springs Drive Richmond VA     4,922   19,689   251   5,172   19,690   24,862   205  2000 2007 40
6800 Paragon Place Richmond VA     4,552   18,414   236   4,552   18,650   23,202   626  1986 2006 40
6802 Paragon Place Richmond VA     2,917   11,454   2,530   2,917   13,984   16,901   2,665  1989 2002 40
1025 Boulders Parkway Richmond VA     2,824   11,297   251   3,074   11,298   14,372   118  1994 2007 40
2100-2116 West Laburnam Avenue Richmond VA     2,482   8,846   2,278   2,482   11,124   13,606   3,064  1976 1998 40
7401 Beaufont Springs Drive Richmond VA     2,599   10,396   251   2,849   10,397   13,246   108  1998 2007 40
7325 Beaufont Springs Drive Richmond VA     2,594   10,377   251   2,844   10,378   13,222   108  1999 2007 40
9011 Arboretum Parkway Richmond VA     1,857   7,702   892   1,857   8,594   10,451   2,228  1991 1998 40
6806 Paragon Place Richmond VA        10,288   0      10,288   10,288   415  2007 2005 40
4805 Lake Brooke Drive Glen Allen VA     1,640   6,567   1,312   1,640   7,879   9,519   2,023  1996 1998 40
4364 South Alston Avenue Durham NC     1,622   6,419   910   1,581   7,370   8,951   2,182  1985 1998 40
2511 Brittons Hill Road Richmond VA     1,202   4,820   1,863   1,202   6,683   7,885   1,762  1987 1998 40
9100 Arboretum Parkway Richmond VA  3,425   1,362   5,489   834   1,362   6,323   7,685   1,665  1988 1998 40
2812 Emerywood Parkway Henrico VA     1,069   4,281   1,902   1,069   6,183   7,252   2,302  1980 1998 40
9210 Arboretum Parkway Richmond VA  2,840   1,110   4,474   581   1,110   5,055   6,165   1,551  1988 1998 40
100 Gateway Centre Parkway Richmond VA     391   5,410   123   391   5,533   5,924   812  2001 1998 40
1957 Westmoreland Street Richmond VA     1,061   4,241   234   1,061   4,475   5,536   1,276  1975 1998 40
2201-2245 Tomlynn Street Richmond VA     1,020   4,067   391   1,020   4,458   5,478   1,255  1989 1998 40
9200 Arboretum Parkway Richmond VA  2,447   985   3,973   142   985   4,115   5,100   1,148  1988 1998 40
9211 Arboretum Parkway Richmond VA     582   2,433   243   582   2,677   3,258   758  1991 1998 40
2248 Dabney Road Richmond VA     512   2,049   304   512   2,354   2,865   684  1989 1998 40
2221-2245 Dabney Road Richmond VA     530   2,123   176   530   2,299   2,829   659  1994 1998 40
2244 Dabney Road Richmond VA     550   2,203   37   550   2,240   2,790   617  1993 1998 40
2212-2224 Tomlynn Street Richmond VA     502   2,014   157   502   2,171   2,673   595  1985 1998 40
2277 Dabney Road Richmond VA     507   2,034   15   507   2,049   2,556   563  1986 1998 40
2161-2179 Tomlynn Street Richmond VA     423   1,695   269   423   1,964   2,387   559  1985 1998 40
2246 Dabney Road Richmond VA     455   1,822   18   455   1,840   2,295   504  1987 1998 40
2130-2146 Tomlynn Street Richmond VA     353   1,416   288   353   1,704   2,057   571  1988 1998 40
2256 Dabney Road Richmond VA     356   1,427   271   356   1,698   2,054   469  1982 1998 40
2251 Dabney Road Richmond VA     387   1,552   111   387   1,662   2,050   503  1983 1998 40
2120 Tomlynn Street Richmond VA     281   1,125   251   281   1,377   1,657   417  1986 1998 40
2240 Dabney Road Richmond VA     264   1,059   10   264   1,069   1,334   293  1984 1998 40
                                   
  Total:   $611,898  $720,198  $3,705,120  $387,701  $727,979  $4,085,584  $4,813,563  $558,908       
                                   

F - 8995


BRANDYWINE OPERATING PARTNERSHIP, L.P.
Real Estate and Accumulated Depreciation — December 31, 2006
(in thousands)
                                                     
                          Gross Amount at Which Carried      
              Initial Cost December 31, 2006      
                      Net                    
                      Improvements             Accumulated      
                      (Retirements)             Depreciation at      
          Encumberances at     Building and Since     Building and     December 31, Year of Year Depreciable
  City State December 31, 2006 Land Improvements Acquisition Land Improvements Total (a) 2006 (b) Construction Acquired Life
479 Thomas Jones Way Exton PA     1,075   4,299   681   1,075   4,980   6,055   882   1988   2001   40 
481 John Young Way Exton PA  2,294   496   1,983   1   496   1,984   2,480   286   1997   2001   40 
555 Croton Road King of Prussia PA     4,486   17,943   503   4,486   18,446   22,932   2,887   1999   2001   40 
7360 Windsor Drive Allentown PA     1,451   3,618   2,038   1,451   5,655   7,107   1,594   2001   2001   40 
Two Righter Parkway Wilmington DE     2,802   11,217   5   2,802   11,221   14,024   1,833   1987   2001   40 
1000 Lenox Drive Lawrenceville NJ     1,174   4,696   2,107   1,174   6,803   7,977   1,070   1982   2002   40 
200 Commerce Drive Newark DE  5,841   911   4,414   1,020   911   5,434   6,345   838   1998   2002   40 
400 Commerce Drive Newark DE  11,797   2,528   9,220   4,483   2,528   13,703   16,231   5,593   1997   2002   40 
600 West Germantown Pike Plymouth Meeting PA  11,687   3,652   15,288   649   3,652   15,937   19,589   2,079   1986   2002   40 
610 West Germantown Pike Plymouth Meeting PA  11,315   3,651   14,514   1,331   3,651   15,844   19,496   2,303   1987   2002   40 
620 West Germantown Pike Plymouth Meeting PA  11,453   3,572   14,435   1,641   3,572   16,076   19,648   2,401   1990   2002   40 
630 West Germantown Pike Plymouth Meeting PA  11,297   3,558   14,743   1,269   3,558   16,012   19,570   2,361   1988   2002   40 
6802 Paragon Place Richmond VA     2,917   11,454   2,082   2,917   13,536   16,453   2,061   1989   2002   40 
980 Harvest Drive Blue Bell PA     2,079   7,821   1,215   2,079   9,036   11,115   1,292   1988   2002   40 
565 East Swedesford Road Wayne PA     1,872   7,489   890   1,872   8,379   10,251   785   1984   2003   40 
575 East Swedesford Road Wayne PA     2,178   8,712   459   2,178   9,171   11,349   783   1985   2003   40 
585 East Swedesford Road Wayne PA     1,350   5,401   34   1,350   5,435   6,785   432   1998   2003   40 
595 East Swedesford Road Wayne PA     2,729   10,917   374   2,729   11,291   14,020   891   1998   2003   40 
989 Lenox Drive Lawrenceville NJ     3,701   14,802   860   3,700   15,662   19,363   1,196   1984   2003   40 
100 North 18th Street Philadelphia PA  74,079   16,066   100,255   1,416   16,066   101,671   117,737   8,913   1988   2004   33 
130 North 18th Street Philadelphia PA     14,496   107,736   728   14,473   108,487   122,960   9,514   1998   2004   23 
130 Radnor Chester Road Radnor PA     2,573   8,338   (23)  2,567   8,320   10,888   582   1983   2004   25 
150 Radnor Chester Road Radnor PA     11,925   36,986   8,223   11,897   45,237   57,134   4,146   1983   2004   29 
170 Radnor Chester Road Radnor PA     2,514   8,147   30   2,509   8,182   10,691   569   1983   2004   25 
201 King of Prussia Road Radnor PA     8,956   29,811   1,192   8,949   31,009   39,959   3,147   2001   2004   25 
300 Delaware Avenue Wilmington DE     6,368   13,739   1,089   6,369   14,827   21,196   1,721   1989   2004   23 
525 Lincoln Drive West Marlton NJ     3,727   17,620   1,770   3,727   19,390   23,117   2,267   1986   2004   40 
555 Lancaster Avenue Radnor PA     8,014   16,508   16,468   7,991   32,999   40,990   832   1973   2004   24 
920 North King Street Wilmington DE     6,141   21,140   528   6,141   21,668   27,809   2,016   1989   2004   30 
Five Radnor Corporate Center Radnor PA     6,506   25,525   1,977   6,578   27,430   34,008   2,162   1998   2004   38 
Four Radnor Corporate Center Radnor PA     5,406   21,390   7,648   5,705   28,739   34,444   2,609   1995   2004   30 
Four Tower Bridge Conshohocken PA  10,626   2,672   14,221   (112)  2,672   14,109   16,781   5,192   1998   2004   40 
One Radnor Corporate Center Radnor PA     7,323   28,613   (34)  7,323   28,579   35,902   2,683   1998   2004   29 
Six Tower Bridge Conshohocken PA  14,744   2,827   15,525   20   2,827   15,545   18,372   4,731   1999   2004   40 
Three Radnor Corporate Center Radnor PA     4,773   17,961   (100)  4,791   17,843   22,634   1,654   1998   2004   29 
Two Radnor Corporate Center Radnor PA     3,937   15,484   82   3,942   15,560   19,503   1,501   1998   2004   29 
1 West Elm Street W. Conshohocken PA     3,557   14,249      3,557   14,254   17,811   446   1999   2005   40 
101 West Elm Street W. Conshohocken PA     6,251   25,209   647   6,251   25,856   32,107   942   1999   2005   40 
Arcadia Land Upper Macungie PA     5      0   5      5      N/A   2005   40 
1 Kaiser Plaza Oakland CA  50,088   15,034   107,422   1,130   15,291   108,294   123,585   3,653   1978   2006   46 
100 Lenox Drive Lawrenceville NJ     2,035   8,158   36   2,035   8,194   10,229   188   1991   2006   40 
101-103 Juniper Street Philadelphia VA     464   1,843   1   464   1,844   2,308   35   N/A   2006   40 
11700 Beltsville Drive Beltsville MD     2,808   12,081   46   2,858   12,077   14,935   313   1981   2006   46 
11710 Beltsville Drive Beltsville MD     2,278   11,100   (944)  2,317   10,117   12,434   324   1987   2006   46 
11720 Beltsville Drive Beltsville MD     3,831   16,661   414   3,897   17,009   20,906   536   1987   2006   46 
11740 Beltsville Drive Bethesda MD     198   870   9   202   875   1,077   36   1987   2006   46 
1177 East Beltline Road Coppell TX  20,337   1,516   14,895   13   1,517   14,908   16,425   597   1998   2006   42 
11781 Lee Jackson Memorial Highway Fairfax VA     3,246   19,836   167   3,302   19,948   23,250   999   1982   2006   40 
1200 Concord Avenue Concord CA  20,519   6,395   24,664   551   6,504   25,106   31,610   1,673   1984   2006   34 
12015 Lee Jackson Memorial Highway Fairfax VA     3,770   22,895   184   3,835   23,014   26,849   1,011   1985   2006   42 
1220 Concord Avenue Concord CA  20,528   6,476   24,966   9   6,476   24,975   31,451   1,673   1984   2006   34 
1221 Mopac Expressway Austin TX     3,290   31,548   459   3,361   31,935   35,296   1,045   2001   2006   55 
1250 Capital of Texas Hwy South Austin TX     5,152   37,928   (51)  5,241   37,788   43,029   1,367   1984   2006   52 
1301 Mopac Expressway Austin TX     4,188   41,229   262   4,245   41,434   45,679   1,113   2001   2006   55 
1333 Broadway Oakland CA  24,318   4,519   35,235   159   4,519   35,394   39,913   1,946   1972   2006   40 
13825 Sunrise Valley Drive Herndon VA     3,794   19,365   173   3,859   19,473   23,332   1,083   1989   2006   46 
13880 Dulles Corner Lane Herndon VA     7,236   39,213   344   7,360   39,433   46,793   1,159   1997   2006   55 
1501 South Mopac Expressway Austin TX     3,698   34,912   984   3,761   35,832   39,594   1,656   1999   2006   53 
1601 Mopac Expressway Austin TX     3,538   34,346   692   3,599   34,978   38,577   1,063   2000   2006   54 
1676 International Drive Mclean VA  63,064   18,437   97,538   882   18,753   98,105   116,858   2,275   1999   2006   55 
16870 W Bernardo Drive San Diego CA  10,700   2,979   15,896   6   2,979   15,902   18,881   953   2002   2006   56 
1801 Mopac Expressway Austin TX     1,227   10,959   42   1,248   10,980   12,228   287   1999   2006   53 
1880 Campus Commons Drive Reston VA     6,164   28,114   46   6,270   28,054   34,324   598   1985   2006   52 
1900 Gallows Road Vienna VA     7,797   47,817   556   7,930   48,239   56,170   1,591   1989   2006   52 
1901 Harrison Street Oakland CA  30,056   5,442   59,920   727   5,535   60,554   66,089   1,716   1985   2006   48 

F - 90


BRANDYWINE OPERATING PARTNERSHIP, L.P.
Real Estate and Accumulated Depreciation — December 31, 2006
(in thousands)
                                                     
                          Gross Amount at Which Carried          
              Initial Cost  December 31, 2006          
                      Net                         
                      Improvements              Accumulated          
                      (Retirements)              Depreciation at          
          Encumberances at      Building and  Since      Building and      December 31,  Year of  Year  Depreciable 
  City  State  December 31, 2006  Land  Improvements  Acquisition  Land  Improvements  Total (a)  2006 (b)  Construction  Acquired  Life 
196 Van Buren Street Herndon VA  15,338   6,023   31,780   12   6,023   31,792   37,815   1,985   1991   2006   53 
198 Van Buren Street Herndon VA  15,562   1,908   12,032   5   1,908   12,037   13,945   385   1996   2006   53 
2035 Corte Del Nogal Carlsbad CA  5,728   3,261   6,077   2   3,261   6,079   9,340   472   1991   2006   39 
2101 Webster Street Oakland CA     13,051   89,728   1,664   13,275   91,169   104,444   3,323   1985   2006   44 
2121 Cooperative Way Herndon VA     5,598   38,639   538   5,777   38,999   44,775   1,150   2000   2006   54 
2201 Cooperative Way Herndon VA     4,809   34,093   121   4,809   34,215   39,024   1,476   1990   2006   54 
2251 Corporate Park Drive Herndon VA     11,472   45,893   17   11,472   45,910   57,382   96   2000   2006   40 
2273 Research Boulevard Rockville MD  15,787   5,167   31,110   1,326   5,231   32,372   37,602   998   1999   2006   45 
2275 Research Boulevard Rockville MD  15,741   5,059   29,668   805   5,145   30,386   35,532   1,309   1990   2006   45 
2277 Research Boulevard Rockville MD  14,647   4,649   26,952   266   4,726   27,142   31,867   947   1986   2006   45 
2291 Wood Oak Drive Herndon VA  31,000   8,243   52,413   20   8,243   52,433   60,676   5,034   1999   2006   55 
2340 Dulles Corner Boulevard Herndon VA     16,345   65,379   185   16,345   65,565   81,909   547   1987   2006   40 
2355 Dulles Corner Boulevard Herndon VA     10,365   43,876   17   10,365   43,893   54,258   599   1988   2006   40 
2411 Dulles Corner Park Herndon VA     7,279   46,340   406   7,404   46,621   54,026   1,674   1990   2006   50 
2711 N Haskell Avenue Dallas TX     8,597   97,681   647   8,753   98,171   106,924   5,858   1998   2006   37 
3130 Fairview Park Drive Falls Church VA     6,576   51,605   247   6,688   51,740   58,428   1,275   1999   2006   53 
3141 Fairview Park Drive Falls Church VA     5,918   40,981   295   6,038   41,157   47,195   1,340   1988   2006   51 
3141 Fairview Park Drive Falls Church VA     733   4,939   (4)  733   4,935   5,668   134   1988   2006   51 
3141 Fairview Park Drive Falls Church VA     297   1,964   1   297   1,965   2,262   40   1988   2006   51 
4401 Fair Lakes Court Fairfax VA     1,569   11,982   (47)  1,596   11,908   13,504   375   1988   2006   52 
5780 & 5790 Fleet Street Carlsbad CA  14,500   7,073   22,907   8   7,072   22,916   29,988   1,836   1999   2006   55 
5900 & 5950 La Place Court Carlsbad CA  8,252   3,706   11,185   4   3,706   11,189   14,895   691   1988   2006   48 
5963 La Place Court Carlsbad CA  6,534   2,824   9,413   4   2,824   9,417   12,241   560   1987   2006   55 
5973 Avenida Encinas Carlsbad CA  5,486   2,121   8,361   3   2,121   8,364   10,485   618   1986   2006   45 
6600 Rockledge Drive Bethesda MD        37,421   36      37,457   37,457   733   1981   2006   50 
6800 Paragon Place Richmond VA     4,552   18,414   24   4,552   18,438   22,990   120   1986   2006   40 
7101 Wisconsin Avenue Bethesda MD     9,634   48,402   2,215   9,799   50,452   60,251   1,626   1975   2006   45 
7735 Old Georgetown Road Bethesda MD     4,370   23,192   261   4,445   23,379   27,824   903   1997   2006   45 
8260 Greensboro Drive Mclean VA  33,958   7,952   33,964   (50)  8,088   33,777   41,866   1,179   1980   2006   52 
8521 Leesburg Pike Vienna VA     4,316   30,885   549   4,390   31,360   35,749   1,166   1984   2006   51 
Cityplace Conference Center Dallas TX     505   5,071   2   505   5,073   5,578   137   1998   2006   37 
2929 Arch Street Philadelphia PA        208,570   79      208,649   208,649   5,659   2005   N/A   40 
922 Swedesford Road Berwyn PA     218         218      218      N/A   N/A   40 
                                             
                                                     
  Subtotal:     $878,969  $754,373  $3,887,653  $284,763  $756,383  $4,170,923  $4,927,305  $515,698             
                                             
                                                     
Real Estate Classified as Held for Sale @ 12/31/06:                                            
                                                     
160 - 180 West Germantown Pike East Norriton PA  5,105   1,603   6,418   1,587   1,603   8,005   9,608   2,260   1982   1998   40 
1505/1507 LBJ Freeway Farmers Branch TX     4,393   27,825   (603)  4,165   27,450   31,614   1,263   1989   2006   41 
1501/1503 LBJ Freeway Farmers Branch TX     3,727   28,099   (4,142)  3,210   24,474   27,683   1,217   1985   2006   37 
1601 LBJ Freeway Dallas TX     3,122   16,194   (65)  3,099   16,152   19,250   681   1982   2006   34 
1603 LBJ Freeway Dallas TX     1,170   18,045   40   1,149   18,106   19,255   629   1985   2006   34 
                                             
                                                     
  Subtotal:     $5,105  $14,015  $96,580  $(3,183) $13,225  $94,186  $107,411  $6,050             
                                             
                                                     
  Total:     $884,074  $768,388  $3,984,233  $281,579  $769,608  $4,265,108  $5,034,716  $521,748             
                                             

F - 91


(a) Reconciliation of Real Estate:
 
  The following table reconciles the real estate investments from January 1, 20042005 to December 31, 20062007 (in thousands):
             
  2007  2006  2005 
Balance at beginning of year $4,927,305  $2,560,061  $2,483,134 
             
Additions:            
Acquisitions  158,399   2,370,241   71,783 
Capital expenditures  179,691   334,238   47,732 
             
Less:            
Dispositions  (451,832)  (229,824)  (42,588)
Assets transferred to held-for-sale     (107,411)   
             
          
Balance at end of year $4,813,563  $4,927,305  $2,560,061 
          
             
  2006  2005  2004 
Balance at beginning of year $2,560,061  $2,483,134  $1,869,744 
Additions:            
Acquisitions  2,370,241   71,783   578,197 
Consolidation of VIE’s (1)        35,245 
Capital expenditures  334,238   47,732   30,953 
Less:            
Dispositions  (229,824)  (42,588)  (31,005)
Assets transferred to held-for-sale  (107,411)      
          
Balance at end of year $4,927,305  $2,560,061  $2,483,134 
          
The aggregate cost for federal income tax purposes is $4.5 billion as of December 31, 2007.
(b) Reconciliation of Accumulated Depreciation:
 
  The following table reconciles the accumulated depreciation on real estate investments from January 1, 20042005 to December 31, 20062007 (in thousands):
             
  2007  2006  2005 
Balance at beginning of year $515,698  $390,333  $325,802 
             
Additions:            
Depreciation expense — continued operations  167,160   162,503   78,465 
Depreciation expense — discontinued operations  4,748   12,305   171 
Acquisitions     1,037    
             
Less:            
Dispositions  (128,698)  (44,430)  (14,105)
Assets transferred to held-for-sale     (6,050)   
             
          
Balance at end of year $558,908  $515,698  $390,333 
          
             
  2006  2005  2004 
Balance at beginning of year $390,333  $325,802  $268,091 
Additions:            
Depreciation expense — continued operations  162,503   78,465   60,179 
Depreciation expense — discontinued operations  12,305   171   224 
Consolidation of VIE’s (1)        7,741 
Acquisitions  1,037       
Less:            
Dispositions  (44,430)  (14,105)  (10,433)
Assets transferred to held-for-sale  (6,050)      
          
Balance at end of year $515,698  $390,333  $325,802 
          
(1)- Joint ventures which were consolidated at March 31, 2004 under Financial Interpretation 46-R (“FIN-46-R”), “Consolidation of Variable Interest Entities.”
(2)- Schedule III excludes an asset owned that is subject to a deferred financing lease.

F - 9196