Exhibit 99.1 BOSTON PROPERTIES, INC. Supplemental Operating and Financial Data for the Quarter Ended December 31, 1998 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 INDEX PAGE ---- COMPANY BACKGROUND 2 INVESTOR INFORMATION 3-4 FINANCIAL HIGHLIGHTS 5 CONSOLIDATED BALANCE SHEETS 6 CONSOLIDATED INCOME STATEMENTS 7 FUNDS FROM OPERATIONS 8 FINANCIAL RATIOS 9 CAPITAL STRUCTURE 10 DEBT ANALYSIS 11 PORTFOLIO OVERVIEW 12-13 PAGE ---- OCCUPANCY ANALYSIS - SAME PROPERTY 14 OFFICE PROPERTIES 15 R&D PROPERTIES 16 INDUSTRIAL PROPERTIES 17 GRAND TOTAL - OFFICE, R&D AND INDUSTRIAL PROPERTIES 18 SAME PROPERTY PERFORMANCE 19-21 CAPITAL EXPENDITURES 22 VALUE CREATION PIPELINE - ACQUISITIONS/REPOSITIONING 23 VALUE CREATION PIPELINE - DEVELOPMENT 24 VALUE CREATION PIPELINE - LAND PARCELS 25 ACQUISITION PROPERTY PROFILES 26-27 1 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 COMPANY BACKGROUND Boston Properties Inc., is a self-administered and self-managed real estate investment trust that develops, acquires, owns, and manages a diverse portfolio of office, industrial, and hotel properties predominantly located in greater Boston, greater Washington, DC, midtown Manhattan, greater San Francisco, Baltimore, Maryland, Richmond, Virginia, and Princeton/East Brunswick, New Jersey. The Company is one of the largest owners and developers of office properties in the United States. On June 23, 1997, Boston Properties successfully completed its initial public offering. The offering and the underwriters over-allotment option closed on the same date resulting in 36,110,000 shares being sold at $25.00 per share for a total offering of $902,750,000. On January 30,1998, the Company closed a follow-on offering of 23,000,000 shares (including the underwriters' over-allotment) at $35.125 per share for a total offering of $807,875,000. Through its predecessor company founded by Mortimer B. Zuckerman and Edward H. Linde in 1970, the Company grew through the seventies, eighties, and nineties by developing and redeveloping Class A office properties, R&D and industrial properties, and hotels in its primary markets of greater Boston, greater Washington, DC, and midtown Manhattan. Since the Company's Initial Offering in June 1997, the Company has acquired 39 properties adding approximately 14.1 million square feet to its portfolio, representing an investment of approximately $3.6 billion. In addition, the Company is developing eight Class A Office Buildings and one 221 room hotel for a total anticipated investment of approximately $222.3 million. The Company owns or controls land where it can develop an additional 9.1 million square feet. Boston Properties is a full-service real estate company with substantial in-house expertise and resources in acquisitions, development, financing, construction management, property management, marketing, leasing, accounting, and legal services. 2 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 INVESTOR INFORMATION -------------------- 8 Arlington Street Boston, MA 02116 (617) 859-2600 (617) 536-5087 (fax) Mortimer B. Zuckerman Chairman of the Board Edward H. Linde President, Chief Executive Officer and Director Robert E. Burke Executive Vice President, Operations David G. Gaw Senior Vice President, Chief Financial Officer TIMING ------ QUARTERLY RESULTS WILL BE ANNOUNCED ACCORDING TO THE FOLLOWING ANTICIPATED SCHEDULE: FIRST QUARTER EARLY MAY SECOND QUARTER EARLY AUGUST THIRD QUARTER EARLY NOVEMBER YEAR END LATE JANUARY 3 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 COMMON STOCK DATA (NYSE:BXP) BOSTON PROPERTIES' COMMON STOCK IS TRADED PRIMARILY ON THE NEW YORK STOCK EXCHANGE UNDER THE SYMBOL: BXP. BXP'S COMMON STOCK HAS HAD THE FOLLOWING CHARACTERISTICS: 4TH QUARTER 1998 4TH QUARTER 1997 ---------------- ---------------- HIGH PRICE $ 32.5000 $ 34.3750 LOW PRICE $ 26.6250 $ 30.0000 CLOSING PRICE $ 30.5000 $ 33.0625 DIVIDENDS PER SHARE - ANNUALIZED $ 1.70 $ 1.62 CLOSING DIVIDEND YIELD - ANNUALIZED 5.57% 4.90% CLOSING SHARES, COMMON UNITS AND PREFERRED UNITS (IF CONVERTED) OUTSTANDING (THOUSANDS) 97,780 55,651 CLOSING MARKET VALUE OF SHARES AND UNITS OUTSTANDING (THOUSANDS) $ 2,982,290 $ 1,893,989 4 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 FINANCIAL HIGHLIGHTS (UNAUDITED AND IN THOUSANDS) THREE MONTHS ENDED --------------------------------------------------- ACTUAL ACTUAL 31-DEC-98 31-DEC-97 % CHANGE INCOME ITEMS: ------------- ----------- ----------- --------- Revenues $ 170,026 $ 77,288 119.99% Net Income (1) $ 27,271 $ 12,372 120.43% Funds from Operations $ 59,711 $ 29,017 105.78% Company's share (76.79% and 70.66%) $ 43,607 $ 20,355 114.23% Funds from Operations per share - basic $ 0.69 $ 0.53 30.48% Funds from Operations per share - diluted $ 0.68 $ 0.52 30.76% Dividends per share $ 0.425 $ 0.405 4.94% RATIOS: ------- Interest Coverage Ratio (2) 2.41 2.37 1.78% Dividend Payout Ratio 62.51% 77.88% -19.74% (1) Net income is before net extraordinary items (2) FFO plus interest (excluding amortization)/interest (excluding amortization) DECEMBER 31, 1998 DECEMBER 31, 1997 % CHANGE ----------------- ----------------- -------- CAPITALIZATION: --------------- Total Debt $ 3,088,724 $ 1,332,253 131.84% Total Shares Outstanding @ Quarter End 63,528 38,694 64.18% Total Units Outstanding @ Quarter End 23,798 16,957 40.34% Total Preferred Units Outstanding @ Quarter End (if converted) 10,454 - - Price @ Quarter End $ 30.50 $ 33.0625 -7.75% Equity Value @ Quarter End $ 2,982,294 $ 1,839,961 62.08% Total Market Capitalization $ 6,071,018 $ 3,172,214 91.38% Debt/Total Market Capitalization 50.88% 42.00% 21.14% 5 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 CONSOLIDATED BALANCE SHEETS (UNAUDITED AND IN THOUSANDS) DECEMBER 31, 1998 DECEMBER 31, 1997 ----------------- ----------------- ASSETS ------ Real Estate and equipment $ 4,755,436 $ 1,778,973 Land and development in progress 191,436 17,527 Less accumulated depreciation (357,384) (294,218) ------------------- ------------------- Total real estate and equipment 4,559,809 1,502,282 Cash 12,166 17,560 Escrows 19,014 14,178 Notes receivable 420,143 - Tenant and other receivables 40,830 24,458 Accrued rental income 64,251 55,190 Deferred charges, net 46,029 35,485 Prepaid expenses and other assets 26,058 20,225 Investment in joint ventures 46,787 3,143 ------------------- ------------------- TOTAL ASSETS $ 5,235,087 $ 1,672,521 ------------------- ------------------- ------------------- ------------------- LIABILITIES AND STOCKHOLDERS' EQUITY ------------------------------------ Liabilities: Mortgage notes payable $ 2,653,581 $ 1,099,253 Notes payable 420,143 - Unsecured line of credit 15,000 233,000 Accounts payable and accrued expenses 33,638 23,822 Dividends payable 40,494 22,539 Accrued interest payable 7,307 6,581 Other liabilities 37,209 11,642 ------------------- ------------------- Total liabilities 3,207,372 1,396,837 ------------------- ------------------- Commitments and contingencies - - ------------------- ------------------- Minority interests 1,105,864 100,636 ------------------- ------------------- Stockholders' Equity: Excess stock, $.01 par value, 150,000,000 shares authorized, none issued or outstanding - Preferred stock, $.01 par value, 50,000,000 shares authorized, none issued or outstanding - Common stock, $.01 par value, 250,000,000 shares authorized, 63,527,552 and 38,694,041 issued and outstanding, respectively 635 387 Additional paid-in capital 929,081 172,347 Earnings in excess of dividends (7,865) 2,314 ------------------- ------------------- Total stockholders' equity 921,851 175,048 ------------------- ------------------- TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 5,235,087 $ 1,672,521 ------------------- ------------------- ------------------- ------------------- 6 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 CONSOLIDATED INCOME STATEMENTS (UNAUDITED AND IN THOUSANDS) THREE MONTHS ENDED ACTUAL ACTUAL 31-DEC-98 31-DEC-97 % CHANGE --------- --------- -------- Revenue: Rental income $162,060 $ 75,388 114.97% Development and management services 3,517 1,591 121.06% Interest and other 4,449 309 1339.81% -------- --------- -------- Total revenue 170,026 77,288 119.99% Operating Expenses: Rental expenses 53,303 22,201 140.09% General and administrative 5,753 3,525 63.21% Interest 42,934 22,214 93.27% Depreciation and amortization 24,205 11,565 109.30% -------- --------- -------- Total expenses 126,195 59,505 112.07% -------- --------- -------- Income before minority interests 43,831 17,783 146.48% Minority interest in property partnerships (2,163) (146) 1381.51% -------- --------- -------- Income before minority interest in Operating Partnership 41,668 17,637 136.25% Minority interest in Operating Partnership (14,397) (5,265) 173.45% -------- --------- -------- Net income before extraordinary items 27,271 12,372 120.43% Net extraordinay loss on early debt extinguishments, net of minority interest (9,045) - - -------- --------- -------- Net income $ 18,226 $ 12,372 47.32% -------- --------- -------- -------- --------- -------- INCOME PER SHARE OF COMMON STOCK Net income before extraordinary item $ 0.43 $ 0.32 34.26% -------- --------- -------- -------- --------- -------- Net income $ 0.29 $ 0.32 -10.34% -------- --------- -------- -------- --------- -------- 7 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 FUNDS FROM OPERATIONS (IN THOUSANDS, EXCEPT FOR PER SHARE AMOUNTS) (UNAUDITED) THREE MONTHS ENDED ACTUAL ACTUAL 31-DEC-98 31-DEC-97 % CHANGE --------- --------- -------- Income from operations before minority interests $ 43,831 $ 17,783 146.48% Add: Real estate depreciation and amortization 23,930 11,395 110.00% Less: Minority property partnership's share of funds from operations (3,725) (161) 2213.66% --------- Preferred allocation (4,325) - - --------- -------- --------- Funds from Operations $ 59,711 $ 29,017 105.78% --------- -------- --------- --------- -------- --------- Company's share (1) $ 43,607 $ 20,355 114.23% --------- -------- --------- --------- -------- --------- Funds from Operations per share - basic $ 0.69 $ 0.53 30.48% --------- -------- --------- --------- -------- --------- Weighted average shares outstanding - basic 63,528 38,694 64.18% --------- -------- --------- --------- -------- --------- Funds from Operations per share - diluted $ 0.68 $ 0.52 30.76% --------- -------- --------- --------- -------- --------- Weighted average shares outstanding - diluted 68,432 39,108 74.98% --------- -------- --------- --------- -------- --------- (1) Based on weighted average shares for the quarter. Company's share for the quarter ended 12/31/98 was 73.03% and 70.15% for the quarter ended 12/31/97. 8 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 FINANCIAL RATIOS THREE MONTHS ENDED DECEMBER 31, 1998 ------------------ RATIOS COMPUTED FOR INDUSTRY COMPARISONS: (1) OPERATIONAL RATIOS (2) Debt Service Coverage Ratio 2.20 (Funds from Operations ("FFO")+Interest/Interest+Principal) Interest Coverage Ratio 2.41 (Funds from Operations+Interest/Interest) Return on Shareholder's Equity 24.74% (Funds from Operations/Average Equity (book value) ) (%) Return on Real Estate Investments 10.54% (Funds from Operations+Interest/Average Real Estate Investments (book value)) (%) FFO Payout Ratio 62.50% (Dividends Declared/Funds from Operations) (%) (1) All coverage and return ratios computed based on FFO before minority interest in earnings of the Operating Partnership and the minority interest share of FFO add-backs. (2) FFO is calculated based on the NAREIT White Paper 9 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 CAPITAL STRUCTURE DEBT (IN THOUSANDS) AGGREGATE PRINCIPAL DECEMBER 31, 1998 ------------------- Mortgage Loans $ 2,653,581 Notes Payable 420,143 Unsecured Line of Credit 15,000 -------------------- Total Debt $ 3,088,724 -------------------- -------------------- EQUITY (IN THOUSANDS) COMMON SHARES & UNITS STOCK $ VALUE OUTSTANDING EQUIVALENTS EQUIVALENT (1) -------------- ----------- -------------- Common Stock 63,528 63,528 $ 1,937,598 Operating Partnership Units 23,798 23,798 725,839 Preferred Operating Partnership Units 8,754 10,454 318,856 ----------- ------------- Total Equity 97,780 $ 2,982,294 ----------- ------------- ----------- ------------- Total Market Capitalization $ 6,071,018 ------------- ------------- (1) Value based on December 31, 1998 closing price of $30.50. 10 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 DEBT ANALYSIS Long-Term Debt Maturities and Principal Payments (in thousands) YEAR 1999 2000 2001 2002 2003 THEREAFTER TOTAL ---- ---- ---- ---- ---- ---------- ----- Amount $ 26,940 233,075 146,059 385,394 206,853 2,090,403 $ 3,088,724 UNSECURED LINE OF CREDIT - DUE JUNE 23, 2000 (in thousands) FACILITY OUTSTANDING @ 12/31/98 REMAINING CAPACITY -------- ---------------------- ------------------ $ 500,000 15,000 $ 485,000 UNSECURED AND SECURED DEBT ANALYSIS WEIGHTED AVERAGE WEIGHTED AVERAGE % OF DEBT RATE MATURITY --------- ---------------- ---------------- Unsecured Debt 14.09% 5.79% 1.7 years Secured Debt 85.91% 7.04% 6.5 years ------ ---- --------- Total Debt 100.00% 6.87% 5.6 years ------ ---- --------- ------ ---- --------- FLOATING AND FIXED RATE DEBT ANALYSIS WEIGHTED AVERAGE WEIGHTED AVERAGE % OF DEBT RATE MATURITY --------- ---------------- ---------------- Floating Rate Debt 14.46% 5.81% 0.2 years Fixed Rate Debt 85.54% 7.05% 6.6 years ------ ----- --------- Total Debt 100.00% 6.87% 5.6 years ------ ----- --------- ------ ----- --------- 11 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 PORTFOLIO OVERVIEW Rentable Square Feet of In-Service Properties by Location and Type of Property GEOGRAPHIC AREA OFFICE * R&D INDUSTRIAL TOTAL % OF TOTAL --------------- -------- ------- ---------- ------ ----------- Greater Boston 5,008,699 545,206 247,318 5,801,223 26.17% Greater Washington, D.C. 4,161,795 1,383,442 236,743 5,781,980 26.08% Greater San Francisco 3,701,118 144,479 281,000 4,126,597 18.61% Midtown Manhattan 2,880,508 - - 2,880,508 12.99% Princeton/East Brunswick, NJ 1,366,360 - - 1,366,360 6.16% Baltimore, MD 1,152,436 - - 1,152,436 5.19% Richmond, VA 899,720 - - 899,720 4.06% Bucks County, PA - - 161,000 161,000 0.73% ---------- --------- --------- ---------- -------- Total 19,170,636 2,073,127 926,061 22,169,824 100.00% ---------- --------- --------- ---------- -------- ---------- --------- --------- ---------- -------- % of Total 86.48% 9.35% 4.18% 100.00% * Includes retail square footage. HOTEL PROPERTIES NUMBER OF SQUARE HOTEL PROPERTIES ROOMS FEET ---------------- --------- ------ Long Wharf Marriott 402 420,000 Cambridge Center Marriott 431 330,400 --------- ------- Total Hotel Properties 833 750,400 --------- ------- --------- ------- GARAGE PROPERTY AND STRUCTURED PARKING NUMBER OF SQUARE SPACES FEET GARAGE PROPERTIES --------- ------ ----------------- Cambridge Center North Garage 1,170 332,442 STRUCTURED PARKING 15,997 5,802,711 ------- --------- TOTAL GARAGE PROPERTY AND STRUCTURED PARKING 17,167 6,135,153 ------- --------- ------- --------- 12 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 PORTFOLIO OVERVIEW PERCENTAGE OF PROPERTY FUNDS FROM OPERATIONS* FOR IN-SERVICE PROPERTIES BY LOCATION and Type of Property for Quarter Ended December 31, 1998 GEOGRAPHIC AREA OFFICE (1) R&D INDUSTRIAL HOTEL GARAGE TOTAL --------------- ------- --- ---------- ----- ------ ----- Greater Boston 21.5% (2) 1.0% 0.3% 5.3% 0.3% 28.4% Greater Washington, D.C. 24.7% 3.6% 0.2% n/a n/a 28.5% Greater San Francisco 6.8% (3) 0.3% 0.2% n/a n/a 7.3% Midtown Manhattan 21.2% n/a n/a n/a n/a 21.2% Baltimore 5.0% n/a n/a n/a n/a 5.0% Richmond 3.8% n/a n/a n/a n/a 3.8% Princeton/East Brunswick, NJ 5.7% n/a n/a n/a n/a 5.7% Bucks County, PA n/a n/a 0.1% n/a n/a 0.1% ------- ------ ----- ------ ---- ------ Total 88.7% 4.9% 0.8% 5.3% 0.3% 100.0% ------- ------ ----- ------ ---- ------ ------- ------ ----- ------ ---- ------ (1) Includes Retail Center FFO (Prudential Center Boston and Embarcadero Center). (2) Includes Reservoir Place since its acquisition on November 3, 1998. (3) Includes Embarcadero Center since phase 1 of the acquisition on November 12, 1998. * For this table, Property Funds from Operations is equal to GAAP basis property NOI which includes the effect of straight-line rent and excludes any deduction for interest expense. 13 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 OCCUPANCY ANALYSIS SAME PROPERTY OCCUPANCY - BY LOCATION LOCATION 31-DEC-98 31-DEC-97 -------- --------- --------- Greater Boston, MA 95.1% 98.3% Greater Washington, D.C. 98.0% 97.2% Midtown Manhattan, NY 99.9% 99.7% Baltimore, MD n/a n/a Princeton/East Brunswick, NJ n/a n/a Richmond, VA n/a n/a Greater San Francisco, CA 95.0% 98.4% Bucks County, PA 100.0% 100.0% ------- ----- Total Portfolio 97.5% 98.0% ------- ----- ------- ----- SAME PROPERTY - BY TYPE OF PROPERTY 31-DEC-98 31-DEC-97 --------- --------- Total Office Portfolio 98.1% 99.0% Total R&D Portfolio 99.8% 96.9% Total Industrial Portfolio 89.3% 93.4% ------- ----- Total Portfolio 97.5% 98.0% ------- ----- ------- ----- 14 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 IN-SERVICE OFFICE PROPERTIES LEASE EXPIRATIONS ANNUALIZED CURRENT RENTABLE SQUARE REVENUES UNDER PERCENTAGE OF TOTAL YEAR OF LEASE FOOTAGE SUBJECT TO EXPIRING LEASES ANNUALIZED CURRENT REVENUES EXPIRATION EXPIRING LEASES (IN THOUSANDS) REPRESENTED BY EXPIRING LEASES ------------- ------------------- --------------- ------------------------------ 1999 1,372,073 37,469,294 6.15% 2000 1,406,569 39,803,309 6.54% 2001 2,264,138 64,950,377 10.67% 2002 2,247,533 101,767,905 16.71% 2003 1,739,987 52,615,550 8.64% 2004 1,900,942 50,633,360 8.32% 2005 1,316,652 33,646,533 5.53% 2006 2,303,485 77,823,860 12.78% 2007 1,684,849 53,126,078 8.73% Thereafter 2,707,074 97,054,930 15.94% OCCUPANCY BY LOCATION 31-DEC-98 31-DEC-97 --------- --------- Greater Boston, MA 96.9% 98.5% Greater Washington, D.C. 99.8% 99.2% Midtown Manhattan, NY 99.9% 95.2% Baltimore, MD 99.8% 98.0% Richmond, VA 98.8% n/a Princeton/East Brunswick, NJ 98.7% n/a Greater San Francisco, CA 98.9% n/a Bucks County, PA n/a n/a -------- ------ Total Office Portfolio 98.8% 97.6% -------- ------ -------- ------ 15 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 IN-SERVICE R&D PROPERTIES LEASE EXPIRATIONS ANNUALIZED CURRENT RENTABLE SQUARE REVENUES UNDER PERCENTAGE OF TOTAL YEAR OF LEASE FOOTAGE SUBJECT TO EXPIRING LEASES ANNUALIZED CURRENT REVENUES EXPIRATION EXPIRING LEASES (IN THOUSANDS) REPRESENTED BY EXPIRING LEASES ------------- ------------------ --------------- ------------------------------ 1999 220,556 2,444,286 8.89% 2000 403,559 3,631,373 13.20% 2001 264,891 2,081,579 7.57% 2002 266,460 4,620,591 16.80% 2003 94,495 1,180,220 4.29% 2004 47,641 704,767 2.56% 2005 148,330 1,847,469 6.72% 2006 150,000 1,622,501 5.90% 2007 107,895 2,294,165 8.34% Thereafter 345,209 7,080,818 25.74% OCCUPANCY BY LOCATION 31-DEC-98 31-DEC-97 --------- --------- Greater Boston, MA 100.0% 100.0% Greater Washington, D.C. 99.0% 95.8% Midtown Manhattan, NY n/a n/a Baltimore, MD n/a n/a Richmond, VA n/a n/a Princeton/East Brunswick, NJ n/a n/a Greater San Francisco, CA 99.0% 95.2% Bucks County, PA n/a n/a ------ ------- Total R&D Portfolio 99.2% 97.3% ------ ------- ------ ------- 16 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 IN-SERVICE INDUSTRIAL PROPERTIES LEASE EXPIRATIONS ANNUALIZED CURRENT RENTABLE SQUARE REVENUES UNDER PERCENTAGE OF TOTAL YEAR OF LEASE FOOTAGE SUBJECT TO EXPIRING LEASES ANNUALIZED CURRENT REVENUES EXPIRATION EXPIRING LEASES (IN THOUSANDS) REPRESENTED BY EXPIRING LEASES ------------- ------------------- --------------- ------------------------------ 1999 147,512 1,473,292 27.69% 2000 249,280 1,469,129 27.61% 2001 70,829 357,093 6.71% 2002 - - 0.00% 2003 143,105 975,445 18.33% 2004 195,076 935,485 17.58% 2005 20,500 110,151 2.07% 2006 - - 0.00% 2007 - - 0.00% Thereafter - - 0.00% OCCUPANCY BY LOCATION 31-DEC-98 31-DEC-97 ---------- --------- Greater Boston, MA 93.0% 93.0% Greater Washington, D.C. 73.9% 81.4% Midtown Manhattan, NY n/a n/a Baltimore, MD n/a n/a Richmond, VA n/a n/a Princeton/East Brunswick, NJ n/a n/a Greater San Francisco, CA 92.9% 100.0% Bucks County, PA 100.0% 100.0% ---------- --------- Total Industrial Portfolio 89.3% 93.4% ---------- --------- ---------- --------- 17 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 GRAND TOTAL OF ALL IN-SERVICE PROPERTIES LEASE EXPIRATION ANNUALIZED CURRENT RENTABLE SQUARE REVENUES UNDER PERCENTAGE OF TOTAL YEAR OF LEASE FOOTAGE SUBJECT TO EXPIRING LEASES ANNUALIZED CURRENT REVENUES EXPIRATION EXPIRING LEASES (IN THOUSANDS) REPRESENTED BY EXPIRING LEASES ------------- --------------------- --------------- ------------------------------- 1999 1,740,141 41,386,872 6.45% 2000 2,059,408 44,903,811 7.00% 2001 2,599,858 67,389,049 10.50% 2002 2,513,993 106,388,496 16.58% 2003 1,977,587 54,771,215 8.54% 2004 2,143,659 52,273,612 8.15% 2005 1,485,482 35,604,153 5.55% 2006 2,453,485 79,446,361 12.38% 2007 1,792,744 55,420,243 8.64% Thereafter 3,052,283 104,135,748 16.23% OCCUPANCY BY LOCATION 31-DEC-98 31-DEC-97 --------- --------- Greater Boston, MA 97.0% 98.3% Greater Washington, D.C. 98.5% 97.3% Midtown Manhattan, NY 99.9% 95.2% Baltimore, MD 99.8% 98.0% Richmond, VA 98.8% n/a Princeton/East Brunswick, NJ 98.7% n/a Greater San Francisco, CA 98.5% 98.4% Bucks County, PA 100.0% 100.0% --------- --------- Total Portfolio 98.4% 97.2% --------- --------- --------- --------- 18 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 SAME PROPERTY PERFORMANCE Hotel Properties LONG WHARF MARRIOTT - BOSTON 1/1/98- 1/1/97- PERCENT 10/1/98 10/1/97 PERCENT 12/31/98 12/31/97 CHANGE 12/31/98 12/31/97 CHANGE -------- -------- ------- -------- -------- ------- Occupancy 87.5% 87.1% 0.46% 82.6% 84.3% -2.02% Average Daily Rate $ 226.46 $ 218.23 3.77% $ 218.90 $ 230.09 -4.86% REVPAR $ 198.15 $ 190.08 4.25% $ 180.81 $ 193.97 -6.78% CAMBRIDGE CENTER MARRIOTT 1/1/98- 1/1/97- PERCENT 10/1/98 10/1/97 PERCENT 12/31/98 12/31/97 CHANGE 12/31/98 12/31/97 CHANGE -------- -------- ------- -------- -------- ------- Occupancy 83.6% 85.3% -1.99% 76.0% 74.8% 1.60% Average Daily Rate $ 181.15 $ 163.77 10.61% $ 179.32 $ 170.32 5.28% REVPAR $ 151.44 $ 139.70 8.40% $ 136.28 $ 127.34 7.02% TOTAL HOTEL PERFORMANCE 1/1/98- 1/1/97- PERCENT 10/1/98 10/1/97 PERCENT 12/31/98 12/31/97 CHANGE 12/31/98 12/31/97 CHANGE -------- -------- ------- -------- -------- ------- Occupancy 85.5% 86.2% -0.81% 79.2% 79.4% -0.25% Average Daily Rate $ 203.02 $ 190.05 6.82% $ 198.42 $ 199.16 -0.37% REVPAR $ 173.98 $ 164.01 6.08% $ 157.77 $ 159.50 -1.08% 19 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 SAME PROPERTY PERFORMANCE OFFICE, R&D, INDUSTRIAL AND HOTEL PROPERTIES OFFICE R&D INDUSTRIAL HOTEL TOTAL -------- ------- ------------ ------- ------- Number of Properties 33 23 9 2 67 Square feet 5,641,474 1,323,693 926,061 750,400 8,641,628 Percent of in-service properties 29.4% 63.9% 100.0% 100.0% Occupancy @ 12/31/97 99.0% 96.9% 93.4% 98.0% Occupancy @ 12/31/98 98.1% 99.8% 89.3% 97.1% Percent change from 4th quarter 1998 over 4th quarter 1997: Revenue 7.3% 6.1% 4.6% 10.8% 7.3% Expense 7.8% 21.1% 27.3% 35.8% 10.0% Net Operating Income 7.0% 1.9% -4.9% 6.5% 6.2% SAME PROPERTY LEASE ANALYSIS - QUARTER ENDED DECEMBER 31, 1998 OFFICE R&D INDUSTRIAL TOTAL -------- ------- ------------ -------- Vacant space available @ 10/1/98 (sf) 43,584 35,867 46,222 125,673 Square footage of leases expiring or terminated 10/1/98 - 12/31/98 149,992 11,271 136,358 297,621 -------- ------- -------- ------- Total space for lease (sf) 193,576 47,138 182,580 423,294 -------- ------- -------- ------- -------- ------- -------- ------- New tenants (sf) 32,685 36,040 - 68,725 Renewals (sf) 31,367 8,000 83,608 122,975 -------- ------- -------- ------- Total space leased (sf) 64,052 44,040 83,608 191,700 -------- ------- -------- ------- -------- ------- -------- ------- Space available @ 12/31/98 (sf) 129,524 3,098 98,972 231,594 -------- ------- -------- ------- -------- ------- -------- ------- Net increase (decrease) in leased space (sf) (85,940) 32,769 (52,750) (105,921) Average lease term (months) 39 66 12 33 2nd generation TI/Comm PSF $ 13.54 $ 3.34 $ 0.72 $ 5.61 Increase in 2nd generation net rents (2) 10.4% 10.3% 0.0% 6.7% (1) For this table, Funds from Operations is equal to GAAP basis property NOI which includes the effect of straight-line rent and excludes any deduction for interest expense. (2) Represents increase in net rents on a "cash to cash" basis. (Actual net rent at time of expiration vs. initial net rent of new lease.) 20 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 SAME PROPERTY LEASE ANALYSIS - YEAR TO DATE 1/1/98 - 12/31/98 OFFICE R&D INDUSTRIAL TOTAL ------ ----- ---------- ------ Vacant space available @ 1/1/98 (sf) 54,323 41,654 61,222 157,199 Square footage of leases expiring or terminated 1/1/98- 12/31/98 418,421 73,783 358,358 850,562 -------- -------- -------- --------- Total space for lease (sf) 472,744 115,437 419,580 1,007,761 -------- -------- -------- --------- -------- -------- -------- --------- New tenants (sf) 183,200 72,494 56,000 311,694 Renewals (sf) 162,745 39,354 264,608 466,707 -------- -------- -------- --------- Total space leased (sf) 345,945 111,848 320,608 778,401 -------- -------- -------- --------- -------- -------- -------- --------- Space available @ 12/31/98 (sf) 126,799 3,098 98,972 228,869 -------- -------- -------- --------- -------- -------- -------- --------- Net increase/(decrease) in leased space (sf) (72,476) 38,556 (37,750) (71,670) Average lease term (months) 64 67 29 50 2nd generation TI/Comm PSF $ 13.66 $ 3.32 $ 1.13 $ 7.01 Increase in 2nd generation net rents (1) 17.0% 12.6% -9.2% 9.9% (1) Represents increase in net rents on a "cash to cash" basis (actual net rent at time of expiration vs. initial net rent of new lease). 21 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 HISTORICALLY GENERATED CAPITAL EXPENDITURES, TENANT IMPROVEMENT COSTS AND LEASING COMMISSIONS HISTORICAL CAPITAL EXPENDITURES 1992 1993 1994 1995 1996 1997 1998 ---- ---- ---- ---- ---- ---- ---- Recurring capital expenditures $ 1,547 $ 1,425 $1,812 $ 1,618 $ 1,083 $ 1,125 $ 3,543 -------- -------- ------- -------- --------- -------- -------- -------- -------- ------- -------- --------- -------- -------- Hotel improvements, equipment upgrades $ 3,182 $ 836 $1,917 $ 4,420 $ 3,041 $ 2,625 $ 3,872 and replacements -------- -------- ------- -------- --------- -------- -------- -------- -------- ------- -------- --------- -------- -------- 2ND GENERATION TENANT IMPROVEMENTS AND LEASING COMMISSIONS 1992 1993 1994 1995 1996 1997 1998 ---- ---- ---- ---- ---- ---- ---- Office Square feet 673,138 451,295 690,459 768,459 970,072 1,016,427 648,291 ------- ------- ------- ------- ------- --------- -------- Tenant improvement and lease commissions p.s.f. $ 7.85 $ 8.45 $ 9.45 $ 10.66 $ 11.40 $ 10.83 $ 9.82 ------- ------- ------- ------- ------- --------- -------- R&D Square feet 185,070 166,957 276,332 177,073 337,676 169,878 113,428 ------- ------- ------- ------- ------- --------- -------- Tenant improvement and lease commissions p.s.f. $ 3.82 $ 5.53 $ 0.68 $ 6.99 $ 10.45 $ 2.22 $ 3.32 ------- ------- ------- ------- ------- --------- -------- Industrial Square feet 44,473 241,500 132,521 308,388 128,148 258,795 320,608 ------- ------- ------- ------- ------- --------- -------- Tenant improvement and lease commissions p.s.f. $ 2.31 $ 0.28 $ 3.32 $ 1.00 $ 1.71 $ 0.99 $ 1.13 ------- ------- ------- ------- ------- --------- -------- Average tenant improvement and lease commission p.s.f. $ 6.75 $ 5.59 $ 6.51 $ 7.77 $ 10.31 $ 8.06 $ 6.57 ------- ------- ------- ------- ------- --------- -------- ------- ------- ------- ------- ------- --------- -------- 22 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 VALUE CREATION PIPELINE - ACQUISITIONS/REPOSITIONING AS OF DECEMBER 31,1998 (IN THOUSANDS) ANTICIPATED DATE PLACED INITIAL FUTURE TOTAL CURRENT PROPERTY IN SERVICE SQUARE FEET INVESTMENT INVESTMENT INVESTMENT OCCUPANCY -------- ---------- ----------- ---------- ---------- ---------- --------- ACQUISITIONS CLASS A OFFICE BUILDINGS Reservoir Place Nov-98 529,992 $ 96,000 $ 1,676 $ 97,676 99% Embarcadero Center Nov-98 3,701,118 1,216,000 37,710 1,253,710 98% --------- ----------- --------- ----------- ------ Subtotal 4,231,110 1,312,000 39,386 1,351,386 99% REPOSITIONING 1301 New York Avenue Mar-99 185,000 28,000 18,200 46,200 100% (1) --------- ----------- --------- ----------- ------ TOTAL VALUE CREATION PIPELINE - ACQUISITIONS/REPOSITIONING 4,416,110 $ 1,340,000 $ 57,586 $ 1,397,586 99% --------- ----------- --------- ----------- ------ --------- ----------- --------- ----------- ------ (1) As of March 1, 1999 23 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 VALUE CREATION PIPELINE - CONSTRUCTION IN PROGRESS AS OF DECEMBER 31, 1998 ESTIMATED PLACED # OF INVESTMENT DEVELOPMENT PROPERTIES IN SERVICE DATE LOCATION BUILDINGS SQUARE FEET TO DATE - ---------------------- --------------- -------- --------- ----------- ------- CLASS A OFFICE BUILDINGS 200 West Street Q2 1999 Waltham, MA 1 250,000 $ 25,604,410 Eight Cambridge Center Q2 1999 Cambridge, MA 1 175,000 15,704,068 One Freedom Square (25% ownership) Q4 1999 Reston, VA 1 406,980 3,711,969 One and Two Reston Overlook (25% ownership) Q1-Q2 1999 Reston, VA 2 444,000 4,626,104 The Arboretum Q3 1999 Reston, VA 1 96,000 10,208,022 181 Spring Street Q2 1999 Lexington, MA 1 52,000 8,854,583 Market Square North Q4 2000 Washington, DC 1 409,843 37,361,361 ------ ---------- ------------- TOTAL CLASS A OFFICE BUILDINGS 8 1,833,823 106,070,517 HOTELS Residence Inn by Marriott Q1 1999 Cambridge, MA 1 187,474 21,887,954 ------ ---------- ------------- TOTAL DEVELOPMENT PROPERTIES 9 2,021,297 $ 127,958,471 ------ ---------- ------------- ------ ---------- ------------- TOTAL PERCENTAGE DEVELOPMENT PROPERTIES INVESTMENT LEASED - ---------------------- ---------- ------ CLASS A OFFICE BUILDINGS 200 West Street $ 43,423,000 79% Eight Cambridge Center 26,000,000 100% One Freedom Square (25% ownership) 19,150,000 (1) 73% One and Two Reston Overlook (25% ownership) 18,100,000 (1) 100% The Arboretum 15,265,000 100% 181 Spring Street 10,871,085 0% Market Square North 57,500,000 (2) 0% ------------ ------- TOTAL CLASS A OFFICE BUILDINGS 190,309,085 66% HOTELS Residence Inn by Marriott 32,000,000 n/a ------------ ------- TOTAL DEVELOPMENT PROPERTIES $ 222,309,085 66% ------------ ------- ------------ ------- (1) Represents 25% of the total anticipated project-level investment. (2) Represents 50% of the total anticipated project-level investment. 24 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 VALUE CREATION PIPELINE - OWNED LAND PARCELS as of December 31, 1998 NO. OF DEVELOPABLE LOCATION PARCELS ACREAGE SQUARE FEET -------- ------- ------- ----------- Dulles, VA 6 91.1 1,200,000 Rockville, MD 7 128.3 2,331,000 Reston, VA 2 8.8 775,000 Herndon, VA 1 35.5 450,000 Andover, MA 2 27.0 290,000 Springfield, VA 3 9.4 130,000 Boston, MA - - (1) 1,600,000 (2) -------- ------- ----------- 21 300.1 6,776,000 -------- ------- ----------- -------- ------- ----------- (1) Parcels and acreage have not yet been determined at this time. (2) Boston Properties has a 50% ownership interest. VALUE CREATION PIPELINE - LAND PURCHASE OPTIONS NO. OF DEVELOPABLE LOCATION PARCELS ACREAGE SQUARE FEET -------- ------- ------- ----------- Princeton, NJ 16 167.1 2,100,000 Cambridge, MA 1 2.6 209,000 -------- ------- ----------- 17 169.7 2,309,000 -------- ------- ----------- -------- ------- ----------- 25 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 ACQUISITION PROPERTY PROFILE PROPERTY NAME: Reservoir Place PRODUCT TYPE: Class A Office Building LOCATION: Waltham, MA DESCRIPTION: Class A office complex, located directly off Route 128, consists of two connected buildings and a two-level underground parking garage. SIZE: Approximately 530,000 net rentable square feet YEAR CONSTRUCTED: 1955/1987 PURCHASE PRICE: $96 Million CLOSING DATE: November 3, 1998 FUTURE INVESTMENT: $1.7 million OCCUPANCY LEVEL: 99% NUMBER OF TENANTS: 71 FUNDING SOURCE: Common Operating Partnership Units, Assumption of Debt and Cash. LARGEST TENANTS: COMPANY: EDS Personal Communications SIZE: 77,341 LEASE EXPIRATION: 12/31/99 COMPANY: Information Resources, Inc. SIZE: 71,954 LEASE EXPIRATION: 6/30/04 COMPANY: Parexel Int'l Corp. SIZE: 71,691 LEASE EXPIRATION: 8/31/01 26 BOSTON PROPERTIES, INC. FOURTH QUARTER 1998 ACQUISITION PROPERTY PROFILE PROPERTY NAME: Embarcadero Center PRODUCT TYPE: Multi-use LOCATION: San Francisco, California DESCRIPTION: The largest mixed-use business complex in the western United States, comprised of 6 multi-tenant Class-A office towers as well as retail shops, restaurants, entertainment facilities and parking. YEAR CONSTRUCTED: Embarcadero Centers 1-4 and West Tower - 1971-1989 The Old Federal Reserve Building - 1924/1988 PURCHASE PRICE: $1.2 Billion CLOSING DATE: November 12, 1998 (Phase One) February 10, 1999 (Phase Two) FUTURE INVESTMENT: $32.7 million OCCUPANCY LEVEL: 98.9% NUMBER OF TENANTS: 320 FUNDING SOURCE: Cash, Preferred Operating Partnership Units, Debt Financing LARGEST TENANTS: Company: Orrick, Herrington & Sutcliffe Size: 146,013 Lease Expiration: 7/31/04 Company: Industrial Indemnity Company Size: 103,567 Lease Expiration: 5/31/04 Company: Peat Marwick, KPMG Size: 98,598 Lease Expiration: 12/31/09 Company: Dresdner RCM Global Investors Size: 91,040 Lease Expiration: 10/31/01 27