PURCHASE AGREEMENT



                                     BETWEEN



                           MARINERS ISLAND CO-TENANCY



                                       AND



                              KEYNOTE SYSTEMS, INC.



                                 April 25, 2000




                                TABLE OF CONTENTS
                                                               PAGE
1. Agreement of Sale..............................................1

2. Purchase Price.................................................2

3. Deposit........................................................2

   3.1. Deposit...................................................2

   3.2. Buyer's Default...........................................2

   3.3. Seller's Default..........................................3

4. Documents to be Delivered to Buyer.............................3

5. Title..........................................................4

6. Access.........................................................5

   6.1. Access....................................................5

   6.2. Requirements for Contractors and Inspectors...............6

   6.3. Indemnity.................................................6

   6.4. No Disclosure.............................................6

   6.5. Survival..................................................7

7. Due Diligence Period...........................................7

8. Acceptance of Property "As Is".................................7

9. Conditions to Closing.........................................10

   9.1. Buyer's Conditions to Closing............................10

   9.2. Seller's Conditions......................................10

10. Closing......................................................11

    10.1. Closing Date...........................................11

    10.2. Seller's Deposits Into Escrow..........................11

    10.3. Buyer's Deposits into Escrow...........................12


    10.4. Prorations.............................................12

    10.5. Closing Costs..........................................13

    10.6. Closing................................................13

    10.7. Possession.............................................14

11. Representations and Warranties...............................14

    11.1. Representations and Warranties of Seller...............14

    11.2. Material Changes; Survival.............................15

    11.3. Representations and Warranties of Buyer................15

12. Risk of Loss; Insurance Proceeds; Condemnation...............16

    12.1. Insurance..............................................16

    12.2. Damage or Destruction..................................16

    12.3. Eminent Domain.........................................17

13. Seller's Covenants During Contract Period....................17

    13.1. Operation and Management of the Property...............17

    13.2. Franklin Lease.........................................17

14. Assignment...................................................18

15. Indemnification..............................................18

16. Miscellaneous................................................18

    16.1. Notice.................................................18

    16.2. Headings...............................................20

    16.3. Covenant of Further Assurances.........................20

    16.4. Entire Agreement.......................................20

    16.5. Partial Invalidity.....................................20

    16.6. No Waiver..............................................20


    16.7. Attorneys' Fees........................................20

    16.8 Brokers and Finders.....................................21

    16.9. Time of the Essence....................................21

    16.10. Governing Law; Forum..................................21

    16.11. Interpretation........................................21

    16.12. Exchange Transaction..................................21

    16.13. IRS Form 1099-S Designation...........................22

    16.14. Third Party Beneficiaries.............................22

    16.15. Compliance With Laws..................................22

    16.16. Limitation on Seller's Liability......................22

    16.17. Counterparts..........................................23

    16.18. Exhibits..............................................23

    16.19. Authority.............................................23


LIST OF EXHIBITS

Exhibit A      Property  Description
Exhibit B      Tangible  Personal Property
Exhibit C      Tenant  Estoppel  Letter
Exhibit D      Bill of Sale
Exhibit E      Assignment  of Leases
Exhibit F      Assignment  of  Service  Contracts
Exhibit G      Non-Foreign Certificate (FIRPTA)
Exhibit H      Notice to Tenants
Exhibit I      List of Leases





                               PURCHASE AGREEMENT

      THIS  AGREEMENT  is  entered  into  as of  the  25th  day of  April,  2000
("CONTRACT  DATE"),  by  and  between  FRANKLIN  RESOURCES,   INC.,  a  Delaware
corporation  (as to an undivided  60.00%  interest in the  Property,  as defined
below), WILLIAM WILSON III, a married man (as to an undivided 19.35% interest in
the Property),  DAVID R. WORD, a married man (as to an undivided 15.15% interest
in the  Property),  PETER A. NOSSARDI,  a married man (as to an undivided  0.75%
interest in the Property),  JILL M. BENITEZ, a married woman (as to an undivided
0.75%  interest  in the  Property),  HOWARD E.  WOLF,  a  married  man (as to an
undivided  1.00% interest in the Property),  JOHN J. HAMILTON III, a married man
(as to an undivided  1.00% interest in the  Property),  THE BOARD OF TRUSTEES OF
THE LELAND STANFORD JUNIOR  UNIVERSITY (as to an undivided 1.00% interest in the
Property),  and SAN  FRANCISCO  MUSEUM OF MODERN  ART, a  California  non-profit
corporation   (as  to  an  undivided  1.00%  interest  in  the  Property)  (each
individually and collectively,  "SELLER"), and KEYNOTE SYSTEMS, INC., a Delaware
corporation ("BUYER").

                                    RECITALS

      Seller owns and is offering  for sale the land and  improvements  commonly
known as 777  Mariners  Island  Boulevard  in San  Mateo,  California,  and more
completely  described  below.  Buyer has  offered to buy the  property,  and the
parties are entering into this  Agreement to set forth the terms and  conditions
of the sale to Buyer.

      NOW,  THEREFORE,  in consideration of the foregoing and the agreements set
forth below, the parties hereto agree as follows:

      1.  AGREEMENT  OF SALE.  Seller  hereby  agrees to sell to Buyer and Buyer
hereby  agrees to purchase  from Seller that certain real  property (the "LAND")
described in attached  EXHIBIT A, together with the  following,  which  together
with the Land shall be termed the "PROPERTY" herein:

           a.   the office building and any and all fixtures, parking areas,
landscaping and other improvements located upon the Land (collectively, the
"IMPROVEMENTS");

           b.   all machinery, equipment, and other tangible personal property
owned by Seller and identified on EXHIBIT B (collectively, the "TANGIBLE
PERSONAL PROPERTY");

           c. all right,  title and  interest  of Seller,  if any, in and to any
intangible personal property owned, collectively,  by all of the individuals and
entities that comprise  Seller or in which all of such entities and  individuals
otherwise have an interest, and used exclusively in connection with, or relating
solely to, the Property  (collectively,  the  "INTANGIBLE  PERSONAL  PROPERTY"),
including,  to the  extent  assignable  (i)  all  certificate(s)  of  occupancy,
building or equipment permits,  consents,  authorizations,  variances,  waivers,
licenses,   permits,   certificates  and  approvals  from  any  governmental  or
quasi-governmental  authority  with  respect  to the  Land  or the  Improvements
(collectively  the  "APPROVALS"),  (ii)  and  all  warranties,  representations,
guaranties, and miscellaneous rights relating to the ownership, development, use

                                       1


and operation of the Land and Improvements  (the  "WARRANTIES"),  and all claims
and causes of action in which all of the  individuals  and  entities  comprising
Seller have an interest and that arise from Seller's  ownership of the Property;
and

           d.   All right, title and interest of Seller, as landlord, in and to
the Leases and all right, title and interest of Seller in and to the Service
Contracts (as such terms are hereinafter defined);

           e.   all easements, rights of way, privileges,licenses, appurtenances
and other rights and benefits of Seller belonging to or related to the Land; and

           f. all  architectural,  mechanical,  engineering,  as-built and other
plans,  specifications  and  drawings in  Seller's  possession  or control  (the
"PLANS"), all surveys and all soil, environmental, engineering, or other reports
or studies in Seller's possession or control (the "REPORTS").

      2.   PURCHASE PRICE. The purchase price for the Property is EIGHTY MILLION
DOLLARS ($80,000,000) ("PURCHASE PRICE") and shall be paid in cash by Buyer at
the Closing (as defined in Section 10.1 below).

      3.   DEPOSIT AND DEFAULTS.

           3.1 DEPOSIT.  Within one (1)  business  day after the Contract  Date,
Buyer shall deposit in escrow with First American  Title Company,  1737 N. First
St., Ste. 100, San Jose, CA 95112,  Attention:  Peg Larkin,  Escrow Officer (the
"TITLE  COMPANY")  the sum, in  immediately  available  funds,  of FIVE  HUNDRED
THOUSAND  DOLLARS  ($500,000)  (the "INITIAL  DEPOSIT").  In addition,  if Buyer
accepts the  condition  of the Property and desires to proceed to Closing as set
forth in Section 7 below,  it shall deliver to Title Company,  no later than the
expiration of the Due Diligence  Period (as defined in Section 7), an additional
SEVEN  MILLION  FIVE  HUNDRED  THOUSAND  DOLLARS   ($7,500,000)  in  immediately
available  funds  (the  "SECOND  DEPOSIT").  The term  "DEPOSIT"  shall mean the
Initial  Deposit,  as increased by the Second Deposit,  if applicable,  together
with all  interest  earned  thereon.  The  Deposit  shall be held in an interest
bearing  account for the account of Buyer and shall be disbursed  in  accordance
with the  terms of this  Agreement.  In the event  the sale of the  Property  is
consummated, the Deposit shall be applied to the Purchase Price. If Buyer elects
to terminate this Agreement  pursuant to its terms,  prior to the end of the Due
Diligence  Period (as  defined in Section  7), or if this  transaction  fails to
close based solely on Seller's default of its obligations hereunder, the Deposit
shall be returned to Buyer.

           3.2 BUYER'S  FAILURE TO CLOSE.  IF BUYER DOES NOT ELECT TO  TERMINATE
THIS  AGREEMENT  PURSUANT  TO ITS  TERMS,  BUT BUYER  FAILS TO  CONSUMMATE  THIS
TRANSACTION  ON THE  SCHEDULED  CLOSING  DATE (AS  DEFINED IN  SECTION  10.1) ON
ACCOUNT  OF  BUYER'S  DEFAULT,  SELLER  SHALL  BE  ENTITLED  TO THE  DEPOSIT  AS
LIQUIDATED DAMAGES.  THE PARTIES HAVE AGREED THAT SELLER'S DAMAGES, IN THE EVENT

                                       2


OF A FAILURE  BY BUYER TO  CONSUMMATE  THIS  TRANSACTION  ON  ACCOUNT OF BUYER'S
DEFAULT, WOULD BE EXTREMELY DIFFICULT OR IMPRACTICABLE TO DETERMINE.  THEREFORE,
BY PLACING THEIR INITIALS BELOW,  THE PARTIES  ACKNOWLEDGE  THAT THE DEPOSIT HAS
BEEN AGREED UPON,  AFTER  NEGOTIATION,  AS THE PARTIES'  REASONABLE  ESTIMATE OF
SELLER'S  DAMAGES  IN THE  EVENT  OF A  FAILURE  BY  BUYER  TO  CONSUMMATE  THIS
TRANSACTION ON ACCOUNT OF BUYER'S DEFAULT. THE PARTIES AGREE THAT THE DEPOSIT IS
NOT INTENDED AS A FORFEITURE OR PENALTY  WITHIN THE MEANING OF CALIFORNIA  CIVIL
CODE SECTIONS 3275 OR 3369 BUT SHALL BE TREATED AS LIQUIDATED  DAMAGES  PURSUANT
TO CALIFORNIA CIVIL CODE SECTIONS 1671, 1676 AND 1677.

      Seller: _______________             Buyer: _______________

           3.3  SELLER'S  DEFAULT.  Notwithstanding  anything  to  the  contrary
contained in this  Agreement,  if Seller fails to perform in accordance with the
terms of this  Agreement,  then  Buyer  may,  as its sole and  exclusive  remedy
hereunder and at Buyer's option,  either (a) terminate this Agreement,  in which
event the Deposit shall be returned to Buyer,  this Agreement  shall be null and
void,  and  neither  party  shall  have any  rights or  obligations  under  this
Agreement,   except  such  rights  and  obligations  as  expressly  survive  the
termination of this Agreement,  or (b) provided an action is filed within thirty
(30) days after the scheduled  Closing Date,  seek specific  performance of this
Agreement, but not any damages (whether actual, direct, indirect, consequential,
compensatory,   punitive  or  otherwise).   Buyer's  failure  to  seek  specific
performance as aforesaid  shall  constitute its election to proceed under clause
(a) above.

      4.  DOCUMENTS TO BE DELIVERED TO BUYER.  During the Due Diligence  Period,
Seller shall  provide  Buyer with access at its offices at 1400  Fashion  Island
Boulevard,  Suite 305, San Mateo,  California  94404,  during  regular  business
hours,  to all  information  concerning  the  Property in  Seller's  possession,
including  the items  listed below but  excluding  the  Excluded  Documents  (as
defined  below).  To the extent Buyer  requests from Seller a specific  document
(excluding  any Excluded  Documents)  that is not in Seller's  possession but is
reasonably  accessible  to Seller,  Seller  shall make  commercially  reasonable
efforts to obtain such document, provided that such reasonable efforts shall not
require Seller to incur more than nominal expenses.

           a.   SURVEY.  Any surveys of the Land in Seller's possession, but
Seller shall not be obligated to have a survey prepared.

           b.   LEASES.  Copies of all existing leases covering any portion of
the Property, any guarantees thereof, and all amendments thereto (the "LEASES"),
together with documents relating to the Leases that are in Seller's possession.

           c.   TENANT ESTOPPELS.  An estoppel certificate, in the form of
attached EXHIBIT C from Franklin Resources, Inc., a Delaware corporation
("FRANKLIN"), only.  Buyer acknowledges and agrees that it shall not receive
estoppels from any of the other tenants of the Property.

                                       3


           d.   PROPERTY DOCUMENTS. Reports, Approvals and Plans in Seller's
possession.

           e.   SERVICE CONTRACTS.  Copies of all service, maintenance,
management and other contracts and agreements related to the operation and
management of the Property that will remain in effect after the Closing.  All
such agreements and contracts shall be assumed by Buyer at Closing and are
hereinafter are referred to as the "SERVICE CONTRACTS."

           f.   OPERATING DOCUMENTS.  Copies of the real and personal property
tax bills and a statement of income and expenses for the Property for the last
12 months.

      Notwithstanding  anything in this Section 4 or Section 6 to the  contrary,
Seller shall have no obligation to make available to Buyer, and Buyer shall have
no right to inspect or make copies of, any Excluded  Documents.  As used herein,
"EXCLUDED  DOCUMENTS" shall mean any documents  involving  Seller's financing or
refinancing   of  the  Property,   any  purchase  and  escrow   agreements   and
correspondence  pertaining to Seller's  acquisition of the Property  (other than
documents  pertaining  to  the  physical  or  environmental   condition  of  the
Premises), any documents pertaining to the potential acquisition of the Property
by any past or  prospective  purchasers  (other than  documents  relating to the
physical  or  environmental  condition  of  the  Premises),   any  documents  in
Franklin's  possession  that relate to Franklin as a tenant and  occupant of the
Property or that relate to Franklin's business  operations at the Property,  any
third-party  purchase  inquiries  and  correspondence,  appraisals  or  economic
evaluations of the Property,  Seller's organizational documents and records, any
internal  budgets,  financial  projections or reports  prepared by Seller or its
advisors,  managers,  attorneys,  accountants or  consultants,  exclusively  for
Seller or any of its  constituent  partners or  members,  and any  documents  or
materials  that are  subject to the  attorney/client  privilege  or that are the
subject of a third-party written confidentiality obligation.

      5. TITLE.  Buyer acknowledges and agrees that it has received and reviewed
that certain  Preliminary  Report,  Order No.  454976-TD,  dated as of March 16,
2000, prepared by the Title Company for the Property (the "PRELIMINARY REPORT").
Buyer may also, at its sole cost and expense,  during the Due Diligence  Period,
obtain an ALTA land  survey of the  Property.  The  Preliminary  Report  and any
survey obtained by Buyer are referred to herein as the "TITLE  EVIDENCE."  Buyer
and Seller agree that Seller shall have no obligation to cure any  exceptions to
title to the Property other than  exceptions 14, 17, 18, 19, 20, 21, 22, 23, 24,
25, 27, 28, 29, 30, 31, 32, 33 and 34 (the "DISAPPROVED  EXCEPTIONS") (provided,
however,  notwithstanding  the foregoing,  that Seller shall not be obligated to
remove any  exception  relating to the  Leases),  the removal of monetary  liens
(excluding  public liens, such as taxes and special  assessments)  placed on the
Property  by Seller,  the  payment  (by way of  proration  at  Closing)  of real
property taxes and assessments that accrue prior to Closing and the execution of
the Title  Company's  standard  owner's  affidavit  with  respect  to parties in
possession  and work done at the Property  during  Seller's  period of ownership
(collectively,  "SELLER'S  TITLE  OBLIGATIONS").  Exceptions to title that Buyer
causes to appear of  record,  the  exceptions  shown in the  Preliminary  Report
(excluding  the  Disapproved  Exceptions)  and  exceptions  for the  Leases  are
referred to  collectively  herein as the "APPROVED  EXCEPTIONS."  During the Due

                                       4


Diligence  Period,  Buyer shall obtain from the Title Company a commitment  (the
"COMMITMENT"),   subject  only  to  Seller's   performance   of  Seller's  Title
Obligations  and the  consummation of the  transaction  contemplated  under this
Agreement,  to issue at Closing an owner's  policy of title  insurance in a form
acceptable to Buyer  insuring that fee title in the Property is vested in Buyer,
subject  only  to  the  Approved  Exceptions,  with  such  endorsements  as  may
reasonably  be  requested  by Buyer  (the  "TITLE  POLICY").  On or  before  the
expiration of the Due Diligence Period,  Buyer shall deliver to Seller a copy of
the  Commitment  together with a certificate  (the  "CERTIFICATE"),  executed by
Buyer, certifying that Buyer has approved the form of the Title Policy reflected
in the Commitment,  including all of the Approved Exceptions.  If Buyer fails to
deliver  the  Commitment  and  Certificate  prior to the  expiration  of the Due
Diligence  Period,  all  matters  evidenced  by the Title  Evidence  (other than
matters that are required to be removed as part of Seller's  Title  Obligations)
and any  matters  that  Buyer  causes to appear of record at or prior to Closing
shall be deemed  "Approved  Exceptions."  If after delivery of the Commitment to
Seller and prior to Closing,  the Title Company  notifies Buyer of the existence
of a material  exception  to title to the  Property  that has first  appeared of
record  after the date of the  Commitment  and prior to Closing that was not the
result of any  action by Buyer or Seller  and is not  required  to be removed as
part of Seller's Title Obligations,  Buyer shall be entitled, as its sole remedy
on account of the existence of such exception, to terminate this Agreement prior
to Closing,  whereupon  the  Deposit  shall be returned to Buyer and the parties
shall have no further  rights or obligations  hereunder,  except such rights and
obligations as expressly survive the termination of this Agreement. In all other
events,  such  exception  shall  be  deemed  a  "Permitted  Exception"  and this
Agreement shall remain in full force and effect. For purposes of this Section 5,
exceptions  to title  shall be  deemed  "material"  if, in the  aggregate,  such
exceptions would either require an expenditure in excess of $1,000,000 to remove
or would prompt a commercially reasonable buyer to request a reduction in excess
of $1,000,000 in the Purchase Price.

      6.   DUE DILIGENCE INVESTIGATIONS.

           6.1 ACCESS.  During the Due  Diligence  Period,  Seller  shall afford
Buyer and  authorized  representatives  of Buyer  reasonable  access,  at normal
business  hours,  to the Property to enable Buyer to perform its inspections and
investigations  with respect to the  Property.  Notwithstanding  anything to the
contrary  contained  herein:  (a) Buyer's right of  inspection  pursuant to this
Section  6.1 shall  cause as little  disruption  as  reasonably  possible to the
operation of the Property and the  operation of the tenant's  businesses  at the
Property;  (b) no inspection shall be undertaken without reasonable prior notice
(oral or written) to Seller of not less than  twenty-four (24) hours; (c) Seller
shall  have the right to be  present  at any or all  inspections;  (d) no entry,
inspection  or  investigation  of the  Property  shall (i) involve the taking of
samples  or other  physically  invasive  procedures  without  the prior  written
consent of Seller; (ii) damage any part of the Property or any personal property
owned or held by Seller, any tenant or any other third party; or (iii) injure or
otherwise cause bodily harm to any person; (e) Buyer shall promptly pay when due
the costs of all  tests,  investigations,  studies  and  examinations  done with
regard to the  Property;  (f) Buyer  shall not permit any liens to attach to the
Property by reason of the  exercise  of Buyer's  rights  hereunder;  (g) neither
Buyer nor its agents or  representatives  shall contact any tenants,  other than

                                       5


Franklin,  without the prior consent of Seller,  which shall not be unreasonably
withheld or delayed;  and (h) Buyer  shall,  at its sole cost,  fully repair any
damage caused by its  inspections,  tests or studies at the Property and restore
the Property to its condition as it existed prior to any of Buyer's inspections,
tests or studies.  To the  maximum  extent  possible,  Buyer shall take steps to
insure  that  its  repairs  do not  interfere  with  any  tenant's  or  Seller's
operations at the Property.

           6.2 REQUIREMENTS FOR CONTRACTORS AND INSPECTORS. The persons or
entities  performing  Buyer's RS  inspections  shall be  properly  licensed  and
qualified  and shall  have  obtained  all  appropriate  permits  for  performing
relevant  tests on the  Property and shall have  delivered  to Seller,  prior to
entering  or  performing  any tests on the  Property,  evidence  of  proper  and
adequate  insurance  reasonably  satisfactory  to  Seller,  with at least  Three
Million Dollars ($3,000,000.00)  combined,  single-limit,  comprehensive general
liability coverage.

           6.3  INDEMNITY.  Buyer  shall  indemnify,  protect,  defend  and hold
harmless Seller and its members, affiliates, officers, employees and agents, and
each  of  them,  from  and  against  any  and  all  demands,  claims,  legal  or
administrative  proceedings,  losses,  liabilities,  damages,  penalties, fines,
liens,  judgments,  costs or expenses whatsoever,  including attorneys' fees and
defense costs (collectively,  "CLAIMS") arising out of or resulting from Buyer's
inspection  of or entry on the  Property  as  provided  for in this  Section  6;
provided,  however,  that in no event  shall  Buyer be liable  for any  damages,
including any perceived loss of economic value in the Property, resulting solely
from Buyer's discovery of a pre-existing condition affecting the Property.

           6.4 NO  DISCLOSURE.  Buyer  acknowledges  and agrees  that all of the
materials  (collectively,  the "MATERIALS") that Seller makes available to Buyer
in connection with Buyer's due diligence  investigations of the Property are, or
may be,  proprietary  and  confidential  in nature and have been or will be made
available to Buyer  solely to assist Buyer in  determining  the  feasibility  of
purchasing  the  Property.  Buyer agrees not to disclose the Materials or any of
the  provisions,  terms  or  conditions  of  the  Materials,  or  any  analyses,
compilations,  studies or other documents or records prepared by or on behalf of
Buyer from the Materials or otherwise with respect to the Property, or any other
reports of Buyer  (collectively,  the "PROPRIETARY  INFORMATION"),  to any party
outside  of  Buyer's  organization  except  (a) as  necessary  to the Broker (as
defined in Section 16.8, below) and to Buyer's attorneys,  accountants, lenders,
prospective lenders,  investors and/or prospective  investors and consultants or
contractors   engaged  to   investigate,   inspect  or  analyze   the   Property
(collectively,  the "PERMITTED OUTSIDE PARTIES"),  (b) to the Title Company,  or
(c) as may be required by law or court order. Buyer further agrees to notify all
Permitted  Outside  Parties  that  the  Proprietary  Information  is to be  kept
confidential  and not disclosed to third parties and Buyer agrees to use Buyer's
best  efforts  to  cause  all  Permitted  Outside  Parties  to  comply  with the
provisions of this Section 6.4. Without limiting the foregoing, Buyer agrees not
to use  any of the  Proprietary  Information  for  any  purpose  other  than  to
determine  whether to proceed with the contemplated  purchase or, if the Closing
occurs,  for the development,  operation and ownership of the Property following
the Closing. In permitting Buyer and the Permitted Outside Parties to review the

                                       6


Materials  to assist  Buyer,  Seller has not waived  any  privilege  or claim of
confidentiality   with  respect   thereto,   and  no  third-party   benefits  or
relationships  of any kind,  either  expressed  or implied,  have been  offered,
intended  or created by Seller and any such  claims are  expressly  rejected  by
Seller and waived by Buyer. If the Closing fails to occur for any reason,  other
than  Seller's  breach of its  obligations  under this  Agreement,  Buyer  shall
promptly deliver,  upon request of Seller,  all of the Proprietary  Information,
including the Materials, to Seller, provided, however, that to the extent any of
the Proprietary  Information is comprised of materials that Seller has delivered
to Buyer which are either originals or materials of which Seller does not have a
duplicate copy, Buyer shall promptly deliver,  upon request of Seller,  all such
Proprietary Information to Seller even if the Closing fails to occur as a result
of Seller's breach of its obligations under this Agreement.

           6.5 SURVIVAL.  All of Buyer's  obligations under this Article 6 shall
survive the Closing or termination of this Agreement for any cause.

      7. DUE  DILIGENCE  PERIOD.  Buyer  shall have until 5:00 p.m.,  California
time,  on the first  business day thirty (30) days after the Contract  Date (the
"DUE DILIGENCE PERIOD") to inspect and investigate the Property, including roof,
plumbing, soils, electrical,  sprinkler, water, sewer, mechanical,  engineering,
heating,  air conditioning and life safety systems,  structural integrity of the
Improvements,  measurement of the square  footage of the Land and  Improvements,
legal status and  requirements  pertaining to the Property  (including  building
codes,  zoning,  environmental,  public health and fire safety laws),  hazardous
substance  inspections  including  preparation of an  environmental  assessment,
geologic  stability,  status of leases and  contracts  affecting  the  Property,
suitability  of the  Property  for  Buyer's  purposes  and all other  matters of
significance to Buyer.  Buyer shall,  at no additional  cost to Seller,  provide
Seller,  as and  when  Buyer  receives  same,  with a copy of all due  diligence
materials,  reports, plans, surveys and inspections performed by or on behalf of
Buyer, which obligation shall survive termination of this Agreement. Buyer shall
order and pay for all costs and expenses  with respect to such  inspections  and
investigations. If Buyer determines in its sole and absolute discretion that the
Property is acceptable and suitable for its purposes and prior to the expiration
of the Due Diligence Period (a) delivers written notice (the "APPROVAL  NOTICE")
to Seller  of such  decision,  and (b)  delivers  to Title  Company  the  Second
Deposit, as required under Section 3, above, this Agreement shall remain in full
force and effect, Buyer shall have no further right to terminate this Agreement,
except as expressly provided to the contrary in this Agreement,  and the parties
shall  proceed to  complete  the  Closing in  accordance  with the terms of this
Agreement.  In all other  events  (including,  if the  Approval  Notice seeks to
qualify or modify any of the terms or  provisions of this  Agreement,  including
Section 8, below), this Agreement shall terminate effective as of the expiration
of the Due Diligence Period, the Deposit shall be returned to Buyer, and neither
party shall have any further rights or obligations under this Agreement,  except
for such rights and obligations  that expressly  survive the termination of this
Agreement.

      8.  ACCEPTANCE  OF PROPERTY  "AS IS".  ACKNOWLEDGING  THE PRIOR USE OF THE
PROPERTY AND BUYER'S  OPPORTUNITY TO INSPECT THE PROPERTY,  BUYER AGREES TO TAKE
THE PROPERTY "AS IS" WITH ALL FAULTS AND CONDITIONS  THEREON.  ANY  INFORMATION,
REPORTS,  STATEMENTS,  DOCUMENTS OR RECORDS ("DISCLOSURES")  PROVIDED OR MADE TO

                                       7

BUYER OR ITS CONSTITUENTS BY SELLER,  ITS AGENTS,  REPRESENTATIVES  OR EMPLOYEES
CONCERNING  THE  ENVIRONMENTAL  CONDITION OF THE PROPERTY  SHALL NOT  CONSTITUTE
REPRESENTATIONS  OR WARRANTIES.  BUYER SHALL NOT RELY ON SUCH  DISCLOSURES,  BUT
RATHER,   BUYER  SHALL  RELY  ONLY  ON  ITS  OWN  INSPECTION  OF  THE  PROPERTY.
ACCORDINGLY,  BUYER'S DELIVERY OF THE APPROVAL NOTICE PURSUANT TO THE PROVISIONS
OF  SECTION  7  (DUE  DILIGENCE   PERIOD)  ABOVE,   SHALL   CONSTITUTE   BUYER'S
ACKNOWLEDGMENT AND AGREEMENT TO THE FOLLOWING: (i) BUYER HAS REVIEWED, EVALUATED
AND VERIFIED THE DISCLOSURES AND HAS CONDUCTED ALL INSPECTIONS,  INVESTIGATIONS,
TESTS, ANALYSES, APPRAISALS AND EVALUATIONS OF THE PROPERTY (INCLUDING FOR TOXIC
OR HAZARDOUS  MATERIALS,  SUBSTANCES  OR WASTES  (DEFINED AND  REGULATED AS SUCH
PURSUANT TO SECTIONS 25316 AND 25501 OF THE CALIFORNIA HEALTH & SAFETY CODE, THE
RESOURCE CONSERVATION AND RECOVERY ACT, THE COMPREHENSIVE ENVIRONMENTAL RESPONSE
COMPENSATION  AND LIABILITY ACT OR ANY SIMILAR LAWS AND ALL  REGULATIONS  ISSUED
THEREUNDER))  AS IT CONSIDERS  NECESSARY OR  APPROPRIATE TO SATISFY ITSELF FULLY
WITH RESPECT TO THE  CONDITION  AND  ACCEPTABILITY  OF THE PROPERTY (ALL OF SUCH
INSPECTIONS,  INVESTIGATIONS  AND REPORTS BEING HEREIN  COLLECTIVELY  CALLED THE
"INVESTIGATIONS");  (ii) SELLER HAS PERMITTED BUYER ACCESS TO THE PROPERTY;  AND
(iii) BUYER HAS COMPLETED ITS DUE DILIGENCE WITH RESPECT TO THE PROPERTY AND THE
DISCLOSURES  TO ITS  SATISFACTION,  IS  THOROUGHLY  FAMILIAR  WITH THE  PHYSICAL
CONDITION OF THE PROPERTY,  AND IS ACQUIRING THE PROPERTY BASED EXCLUSIVELY UPON
(X) ITS OWN  INVESTIGATIONS  AND INSPECTIONS OF THE PROPERTY AND THE DISCLOSURES
AND (Y) SELLER'S  REPRESENTATIONS  AND  WARRANTIES  EXPRESSLY  SET FORTH IN THIS
AGREEMENT. WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, BUYER SHALL FURTHER
BE DEEMED  TO HAVE  ACKNOWLEDGED  AND  AGREED  THAT (A)  SELLER,  BY MAKING  THE
DISCLOSURES  AND  PERMITTING  BUYER TO  PERFORM  THE  INVESTIGATIONS,  HAS FULLY
COMPLIED WITH ALL DISCLOSURE  REQUIREMENTS  UNDER LOCAL, STATE AND FEDERAL LAWS,
INCLUDING  THE  REQUIREMENTS  OF  SECTIONS  25359.7 AND 25915,  ET SEQ.,  OF THE
CALIFORNIA HEALTH & SAFETY CODE  (COLLECTIVELY,  THE "DISCLOSURE LAWS"), AND (B)
BUYER'S RIGHTS AND REMEDIES WITH RESPECT TO THE PROPERTY SHALL BE LIMITED TO THE
RIGHTS AND REMEDIES  (INCLUDING ALL CONDITIONS AND  LIMITATIONS  PLACED THEREON)
EXPRESSLY  SET FORTH IN THIS  AGREEMENT,  AND BUYER HEREBY WAIVES ALL RIGHTS AND
REMEDIES THAT MIGHT OTHERWISE BE AVAILABLE TO BUYER UNDER THE DISCLOSURE LAWS.

           FURTHER,  BUYER'S  DELIVERY OF THE  APPROVAL  NOTICE  PURSUANT TO THE
PROVISIONS OF SECTION 7 (DUE DILIGENCE PERIOD) ABOVE , SHALL CONSTITUTE  BUYER'S
ACKNOWLEDGMENT  AND  AGREEMENT  TO THE  PROVISIONS  OF THIS  SECTION 8 AND THAT,
REGARDLESS  OF THE  CONTENT OF ANY OF THE  DISCLOSURES  OR ANY  STATEMENTS  THAT

                                       8

SELLER, ITS AGENTS,  EMPLOYEE,  OFFICERS,  CONTRACTORS,  PARTNERS OR MEMBERS MAY
HAVE MADE TO BUYER, ITS AGENTS,  EMPLOYEE,  OFFICERS,  CONTRACTORS,  PARTNERS OR
MEMBERS PRIOR TO OR DURING THE DUE DILIGENCE  PERIOD,  SELLER HAS NOT MADE, DOES
NOT MAKE AND SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS,  WARRANTIES,  PROMISES,
COVENANTS, AGREEMENTS OR GUARANTIES OF ANY KIND OR CHARACTER WHATSOEVER, WHETHER
EXPRESS OR  IMPLIED,  ORAL OR  WRITTEN,  PAST,  PRESENT  OR  FUTURE,  OF, AS TO,
CONCERNING  OR WITH  RESPECT TO: (1) THE  NATURE,  QUALITY OR  CONDITION  OF THE
PROPERTY,  INCLUDING,  WITHOUT LIMITATION,  THE WATER, SOIL AND GEOLOGY; (2) THE
INCOME TO BE DERIVED FROM THE PROPERTY;  (3) THE SUITABILITY OF THE PROPERTY FOR
ANY AND ALL  ACTIVITIES  AND  USES  THAT  BUYER  MAY  CONDUCT  THEREON;  (4) THE
COMPLIANCE  OF OR BY THE  PROPERTY  OR  ITS  OPERATION  WITH  ANY  LAWS,  RULES,
ORDINANCES OR REGULATIONS OF ANY APPLICABLE  GOVERNMENTAL AUTHORITY OR BODY; (5)
THE  HABITABILITY,  MERCHANTABILITY  OR FITNESS FOR A PARTICULAR  PURPOSE OF THE
PROPERTY;  OR (6)  EXCEPT  AS  EXPRESSLY  SET  FORTH  IN  SECTION  11.1  OF THIS
AGREEMENT, ANY OTHER MATTER WITH RESPECT TO THE PROPERTY, AND BUYER SPECIFICALLY
DISCLAIMS ANY  REPRESENTATIONS  REGARDING  TERMITES OR WASTES, AS DEFINED BY THE
U.S. ENVIRONMENTAL  PROTECTION AGENCY REGULATIONS AT 40 C.F.R., OR ANY HAZARDOUS
SUBSTANCE,  AS DEFINED BY THE COMPREHENSIVE  ENVIRONMENTAL RESPONSE COMPENSATION
AND LIABILITY ACT OF 1980 ("CERCLA"),  AS AMENDED,  AND REGULATIONS  PROMULGATED
THEREUNDER.  BUYER, ITS SUCCESSORS AND ASSIGNS,  HEREBY WAIVE, RELEASE AND AGREE
NOT TO  MAKE  ANY  CLAIM  OR  BRING  ANY  COST  RECOVERY  ACTION  OR  CLAIM  FOR
CONTRIBUTION  OR  OTHER  ACTION  OR  CLAIM  AGAINST  SELLER   (COLLECTIVELY   OR
INDIVIDUALLY)  OR ITS RELATED  ENTITIES,  AND ITS AND THEIR  MEMBERS,  MANAGERS,
PARTNERS, DIRECTORS, OFFICERS, SHAREHOLDERS,  TRUSTEES,  BENEFICIARIES,  AGENTS,
EMPLOYEES, REPRESENTATIVES, SUCCESSORS, HEIRS AND ASSIGNS (COLLECTIVELY, "SELLER
AND ITS AFFILIATES") BASED ON, (x) ANY FEDERAL, STATE, OR LOCAL ENVIRONMENTAL OR
HEALTH AND SAFETY LAW OR REGULATION,  INCLUDING CERCLA OR ANY STATE  EQUIVALENT,
OR ANY  SIMILAR  LAW NOW  EXISTING  OR  HEREAFTER  ENACTED;  (y) ANY  DISCHARGE,
DISPOSAL,  RELEASE, OR ESCAPE OF ANY CHEMICAL,  OR ANY MATERIAL WHATSOEVER,  ON,
AT, TO, OR FROM THE PROPERTY; OR (z) ANY ENVIRONMENTAL CONDITIONS WHATSOEVER ON,
IN, UNDER, OR IN THE VICINITY OF THE PROPERTY. EXCEPT WITH RESPECT TO ANY CLAIMS
ARISING OUT OF ANY BREACH OF COVENANTS,  REPRESENTATIONS OR WARRANTIES SET FORTH
IN THIS AGREEMENT OR THE DOCUMENTS  EXECUTED IN CONNECTION  WITH THIS AGREEMENT,
BUYER,  ON BEHALF OF ITSELF  AND ITS  PARTNERS,  MEMBERS,  MANAGERS,  DIRECTORS,
OFFICERS,   SHAREHOLDERS,    TRUSTEES,    BENEFICIARIES,    AGENTS,   EMPLOYEES,
REPRESENTATIVES,  SUCCESSORS,  HEIRS AND ASSIGNS HEREBY RELEASES, SELLER AND ITS
AFFILIATES,  FROM ANY AND ALL CLAIMS OF ANY KIND  WHATSOEVER,  KNOWN OR UNKNOWN,

                                       9

WITH RESPECT TO ANY ASPECT OF THE PROPERTY, INCLUDING THE FOREGOING MATTERS, AND
SPECIFICALLY  WAIVES  WITH  RESPECT  TO  ALL  SUCH  MATTERS  THE  PROVISIONS  OF
CALIFORNIA  CIVIL CODE SECTION 1542 , AND ANY  COMPARABLE  LAW APPLICABLE IN THE
STATE WHERE THE PROPERTY IS LOCATED,  REGARDING THE MATTERS COVERED BY A GENERAL
RELEASE, WHICH PROVIDES AS FOLLOWS:

      "A GENERAL  RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR  DOES NOT
      KNOW OR  SUSPECT  TO EXIST  IN HIS  FAVOR  AT THE  TIME OF  EXECUTING  THE
      RELEASE,  WHICH  IF  KNOWN  BY  HIM  MUST  HAVE  MATERIALLY  AFFECTED  HIS
      SETTLEMENT WITH THE DEBTOR."

BUYER AND SELLER  REPRESENT AND  ACKNOWLEDGE  THAT THIS SECTION 8 WAS EXPLICITLY
NEGOTIATED AND BARGAINED FOR AS A MATERIAL PART OF BUYER'S  CONSIDERATION  BEING
PAID.  Terms  appearing in this Section 8 in all capital  letters that have been
defined  elsewhere in this  Agreement  shall have the meanings set forth in such
definitions.

9.    CONDITIONS TO CLOSING.

           9.1. BUYER'S  CONDITIONS TO CLOSING.  Buyer's  obligation to purchase
the  Property is  conditioned  upon the  satisfaction  of each of the  following
conditions  each of which is for the exclusive  benefit of Buyer.  Buyer may, at
any  time or  times  before  the  Closing,  waive  one or more of the  following
conditions,  without  affecting  its rights  and  remedies  with  respect to the
remaining conditions.

                9.1.1 Seller's  performance of all its obligations hereunder,
and the truth,  completeness  and accuracy,  in all material  respects,  of each
representation  and  warranty  made by  Seller as of the  Contract  Date and the
Closing.

                9.1.2 The issuance at Closing of the Title Policy, subject only
to the Approved Exceptions.

           9.2. SELLER'S CONDITIONS. Seller's obligation to sell the Property is
conditioned upon the satisfaction of each of the following  conditions,  each of
which is for the exclusive benefit of Seller. Seller may, at any time before the
Closing,  waive one or more of the following  conditions,  without affecting its
right, and remedies with respect to the remaining conditions:

                9.2.1 The performance by Buyer of all its obligations hereunder,
and the truth,  completeness  and accuracy,  in all material  respects,  of each
representation  and  warranty  made by  Buyer  as of the  Contract  Date and the
Closing.

                                       10

      10.  CLOSING.

           10.1.CLOSING  DATE. The  consummation of the purchase and sale of the
Property  (the  "CLOSING")  shall be held at the offices of the Title Company on
the  first  business  day  falling  thirty  (30)  days  after the end of the Due
Diligence  Period,  or  earlier  as Buyer  may  elect,  or later if agreed to in
writing by Buyer and Seller (the "CLOSING DATE."). Buyer may elect to extend the
Closing Date by up to an  additional  thirty (30) days,  by  delivering  written
notice of such  extension at least five (5)  business  days prior to the Closing
Date, for the purposes of arranging a synthetic lease  financing,  provided that
in no event shall such  financing  (or any other  financing)  be a condition  to
Closing.

           10.2.SELLER'S DEPOSITS INTO ESCROW.  Seller shall deposit the
following documents and items into escrow:

                a.   a duly executed and acknowledged grant deed conveying the
Land and  Improvements  to Buyer,  subject  to all  matters  of record as of the
Closing;

                b.   a duly executed bill of sale, in the form of attached
EXHIBIT D, transferring the Tangible Personal Property to Buyer;

                c.   a duly executed assignment of leases, in the form of
attached EXHIBIT E, assigning to Buyer all of Seller's  interest as lessor under
the Leases;

                d.   the duly executed tenant estoppel certificate described in
Section 4.d. above;

                e.   a duly executed assignment, in the form of attached EXHIBIT
F, assigning to Buyer all of Seller's  interest in the Service Contracts and, to
the extent  assignable,  Seller's interest in the Intangible  Personal Property,
Plans and Reports;

                f.   originals of all Leases (including lease guarantees),
Service Contracts,  Warranties,  and originals or copies of all Plans,  Reports,
and Approvals, to the extent the same are in Seller's possession or control;

                g.   an affidavit in the form of attached Exhibit G stating that
Seller is not a "foreign person" under IRC Section 1445(f)(3).

                h.   a duly executed California non-foreign person affidavit;

                i.   tenant notice letters for all tenants at the Property
informing  them of the sale of the  Property  and  assignment  of the  Leases to
Buyer, in the form of attached EXHIBIT H;

                j.   Seller's share of the closing costs as described in Section
10.5 below or instructions to Title Company to deduct same from the Purchase
Price;

                                       11


                k.   cash equal to the amount of all refundable tenant security
deposits  or  instructions  to Title  Company to deduct  same from the  Purchase
Price; and

                l.   such other documents as may reasonably be required by the
Title Company to complete the Closing.

           10.3. BUYER'S DEPOSITS INTO ESCROW.  Buyer shall deposit the
following into escrow:

                a.   the balance of the Purchase Price;

                b.   a duly executed assignment of leases, in the form of
attached  EXHIBIT E, which shall also be signed by Seller as provided in Section
10.2.c above;

                c.   a duly executed assignment, in the form of attached EXHIBIT
F, which shall also be signed by Seller as provided in Section 10.2.e above;

                d.   Buyer's share of the closing costs as described in Section
10.5. below; and

                e.   such other documents as may reasonably be required by the
Title Company to complete the Closing.

           10.4. PRORATIONS.  All  rents  and other  sources  of  income  and
all  expenses  for the  Property  will be prorated on the Closing Date (based on
actual  days of the month and a 365 day year)  and the  Purchase  Price  will be
adjusted on the following basis:

                a. ACCOUNTS  RECEIVABLE.  All rents  receivable under the Leases
attributable to the period prior to the Closing Date will be paid to or retained
by Seller.  Rents  attributable to the period  beginning on the Closing Date and
thereafter  will be paid to Buyer.  Buyer will  promptly  pay over to Seller any
rents  received by Buyer after the Closing  attributable  to the period prior to
the Closing Date (determined on the basis of applying rents received to the most
recently accrued rent first).

                b. ACCOUNTS PAYABLE. All sums due for accounts payable that were
owing or accrued by the  Property  for any period  prior to the Closing  will be
paid by Seller.  Buyer will  furnish to Seller for  payment  any bills  received
after the Closing  that apply to any period prior to the Closing with respect to
such  accounts,  agreements  and  contracts.  Payments  due  under  any  Service
Contracts  shall be prorated as of the Closing  Date,  and Buyer shall be liable
for all payments accruing thereunder after the Closing.

                c.  PROPERTY  TAXES.  All real and personal  property ad valorem
taxes and special  assessments,  if any,  will be prorated to the Closing  Date,
based on the latest available tax rate and assessed  valuation.  With respect to

                                       12

any  property  tax  appeal or  reassessment  filed by  Seller  for tax years (or
portions  thereof)  prior to the  Closing,  Seller shall be entitled to the full
amount of any  refund or rebate  resulting  therefrom  applicable  to the period
before the Closing  Date,  except to the extent such  amounts are payable to, or
otherwise accrue to the benefit of, the tenants pursuant to the Leases.

                d.   UTILITY CHARGES.  All utility (including electricity, gas,
water,  sewer and  telephone)  charges will be prorated to the Closing Date. All
utility security deposits, if any, will be retained by Seller.

                e.   POST-CLOSING.  If the amount of any proration cannot be
determined at the Closing,  the adjustments  will be made between the parties as
soon after Closing as possible.

           10.5. CLOSING COSTS.  The Closing costs for this transaction shall be
paid as follows:

                a. Seller  shall pay (i) the  premium for a standard  CLTA title
insurance  policy;  (ii) all San Mateo County  transfer  and sales taxes;  (iii)
one-half of any escrow  fees;  (iv) the  prepayment  fees,  if any,  required in
connection  with  the  discharge  of the  indebtedness  currently  secured  by a
first-priority  mortgage  lien on the  Property;  and (v) all  other  costs  and
expenses allocated to Seller pursuant to this Agreement.

                b. Buyer shall pay (i) the cost of any endorsements to the Title
Policy,  and the increased costs of an ALTA policy, if chosen by Buyer; (ii) all
recording  fees;  (iii) one-half of any escrow fees;  (iv) all City of San Mateo
transfer  taxes;  (v) any and all  commissions  due the  Broker  (as  defined in
Section 16.8,  below);  and (vi) all other costs and expenses allocated to Buyer
pursuant to this Agreement.

           10.6. CLOSING.  Pursuant to Section 10.1 above,  Title  Company
shall  close the escrow for this  transaction  when it is in a position to issue
the Title  Policy and has received  from Seller and Buyer the items  required of
each in Sections 10.2 and 10.3 above.  Title Company shall close escrow by doing
the following:

                a.   Recording the grant deed in the Official Records of the San
Mateo County Recorder;

                b.  Delivering  to Seller  the amount due Seller as shown on the
Closing  Statement,  the original  documents listed in Section 10.3 above, and a
signed  copy of the  closing  statement  for the  escrow  consistent  with  this
Agreement and satisfactory to Buyer and Seller (the "CLOSING STATEMENT"); and

                c. Delivering to Buyer the Title Policy,  the original documents
and items  listed in  Section  10.2  above,  a signed  copy of  Buyer's  Closing
Statement, and any refund due Buyer.

                                       13

           10.7.POSSESSION.  Seller shall deliver possession of the Property to
Buyer on the Closing Date.

      11.  REPRESENTATIONS AND WARRANTIES.

           11.1. REPRESENTATIONS  AND  WARRANTIES OF SELLER.  Seller hereby
makes  the   following   representations   and   warranties   to  Buyer,   which
representations  and warranties shall survive the Closing for a period of twelve
(12)  months  (it  being  understood  that so long as Buyer  has filed a lawsuit
specifically  alleging breach of any such representation or warranty within said
twelve (12) month period,  any claim arising therefrom shall survive said twelve
(12) month period  throughout the pendency of said lawsuit) and all of which (i)
are material and are being relied upon by Buyer, and (ii) are true, complete and
accurate,  in all  material  respects,  as of the date hereof and shall be true,
complete  and  accurate,  as modified by any  Pre-Closing  Disclosures  (defined
below),  in all material  respects,  at the Closing Date.  All references to the
"knowledge  of Seller",  "Seller's  knowledge"  or similar terms in this Section
11.1 shall mean the actual,  current knowledge of David R. Word,  William Wilson
III, and Michael McCulloch only, without duty of inquiry or investigation.

                a. All documents  executed by Seller that are to be delivered to
Buyer at the Closing  are, or at the time of Closing  will be, duly  authorized,
executed,  and  delivered by Seller,  and are, or at the Closing will be, legal,
valid, and binding obligations of Seller, and do not, and at the time of Closing
will not,  violate any  provision of any agreement to which Seller is a party or
to which it is subject or any law, judgment or order applicable to Seller.

                b.   Seller is not a "foreign person" within the meaning of IRC
Section 1445(f)(3).

                c. No  proceedings  under any  federal  or state  bankruptcy  or
insolvency  laws have been  commenced  by or against  Seller  that have not been
terminated;  no general assignment for the benefit of creditors has been made by
Seller; and no trustee or receiver of Seller's property has been appointed.

                d.  Except  as  disclosed  in  writing  to  Buyer,  there  is no
litigation  or  proceeding  pending  or,  to  Seller's  knowledge,   threatened,
involving  Seller or the  Property  that will  adversely  affect the Property or
Seller's ability to consummate the transactions contemplated by this Agreement.

                e.  Except as  disclosed  in  writing  to Buyer,  Seller has not
received any written  notice of any claimed  violation of any  applicable  rule,
regulation,  ordinance  or  government  directive  from  any  administrative  or
governmental authority.

                f.  Seller has  delivered  to Buyer true,  correct and  complete
copies of each of the  Leases  and  Service  Contracts.  There  are no  material

                                       14

defaults currently existing under the Leases or Service Contracts.  There are no
written leases or written contracts that will affect the Property after Closing,
other than the Leases,  the  Service  Contracts  and any matters of record.  The
Leases are the only  leases  affecting  the  Property  and each of the Leases is
identified on the attached  EXHIBIT I. Seller has not assigned any of its rights
or  interests  under  the  Leases,   except  as  evidenced  by  the  Disapproved
Exceptions.

           11.2. PRE-CLOSING DISCLOSURE. As of Closing, Seller shall be deemed
to remake and restate the representations set forth in Section 11.1, except that
the representations shall be deemed modified by any fact, matter or circumstance
disclosed to Buyer or  discovered  by Buyer prior to Closing that would make any
of Seller's representations or warranties contained herein untrue, incomplete or
incorrect in any respect (any such  disclosure or discovery being referred to as
a "PRE-CLOSING  DISCLOSURE").  Seller shall promptly  deliver  written notice to
Purchaser of any fact,  matter or circumstance in Seller's  Knowledge that would
make any of Seller's  representations or warranties  contained herein materially
untrue,  incomplete or incorrect.  Buyer  acknowledges that Seller shall have no
liability,  obligation or responsibility  with respect to any  representation or
warranty  that was true and accurate  when made by Seller upon the execution and
delivery of this  Agreement and that  subsequently  becomes untrue or inaccurate
for any reason that is not a breach or default by Seller of the  covenants  made
by Seller in Section 13 below (e.g., an untruth or inaccuracy due to the passage
of time,  litigation initiated against Seller by a third party, events occurring
or Knowledge acquired by Seller after the date of this Agreement,  etc.). Except
as provided in the previous  sentence,  Buyer's sole remedy for any  Pre-Closing
Disclosure  that is  material  shall be to  terminate  this  Agreement  prior to
Closing,  whereupon the Deposit shall be returned to Buyer and the parties shall
have no  further  rights  or  obligations  hereunder,  except  such  rights  and
obligations as expressly survive the termination of this Agreement. In all other
events,  including if the Pre-Closing Disclosures are not material,  Buyer shall
have no right to terminate this Agreement, the representations and warranties of
Seller shall be deemed modified by the each of the Pre-Closing Disclosures,  and
this  Agreement  shall  remain in full force and  effect.  For  purposes of this
Section 11.2, the Pre-Closing  Disclosures shall be deemed "material" if, in the
aggregate,  it would  either  cost in  excess of  $1,000,000  to cure all of the
Pre-Closing  Disclosures  or would  prompt a  commercially  reasonable  buyer to
request  a  reduction  in  excess  of   $1,000,000   in  the   Purchase   Price.
Notwithstanding  anything to the contrary contained herein,  Buyer shall have no
right to  terminate  this  Agreement by reason of any untruth or  inaccuracy  in
Seller's  representations and warranties that is caused by an action that Seller
is authorized or permitted to take under this Agreement.  The provisions of this
Section 11.2 shall survive the Closing or  termination of this Agreement for any
cause.

           11.3. REPRESENTATIONS  AND WARRANTIES OF BUYER. Buyer hereby makes
the following  representations and warranties to Seller,  which  representations
and  warranties  shall survive the Closing and all of which (i) are material and
are being relied upon by Seller, and (ii) are true, complete and accurate in all
respects as of the date hereof and shall be true,  complete  and  accurate as of
the Closing Date:

                                       15

                a.   Buyer is a corporation, duly organized, validly existing
and in good standing under the laws of the State of Delaware;

                b. This  Agreement and all documents  executed by Buyer that are
to be  delivered  to Seller or the Title  Company at the Closing  are, or at the
time of Closing will be, duly authorized,  executed, and delivered by Buyer, and
are, or at the Closing will be, legal,  valid, and binding obligations of Buyer,
and do not, and at the time of Closing will not,  violate any  provisions of any
agreement  to which  Buyer is a party  or to  which  it is  subject  or any law,
judgment or order applicable to Buyer.

                c. No  proceedings  under any  federal  or state  bankruptcy  or
insolvency  laws have been  commenced  by or  against  Buyer  that have not been
terminated;  no general assignment for the benefit of creditors has been made by
Buyer; and no trustee or receiver of Buyer's property has been appointed.

      If Buyer assigns its rights under this Agreement  pursuant to the terms of
Section 14 below,  such permitted  assignee shall be required and deemed to have
made  all of the  foregoing  representations  and  warranties  as of the date of
assignment  and the Closing Date,  modified to apply to the assignee,  including
its form of enterprise  and state of formation.  All of Buyer's  representations
and warranties shall survive the Closing.

      12.  RISK OF LOSS; INSURANCE PROCEEDS; CONDEMNATION.

           12.1. INSURANCE.  Seller agrees to maintain the insurance policy
currently in effect with respect to the Property  through the Closing Date,  and
upon Buyer's request, to provide Buyer evidence of such insurance.  Seller shall
promptly  (and in any  event  prior to  Closing)  notify  Buyer of any  casualty
causing damage to, or destruction of, the Improvements and Seller's  estimate of
the cost of repair.

           12.2.DAMAGE OR DESTRUCTION.

                a.  In  the  event  of  any  casualty   causing  damage  to,  or
destruction  of,  the  Improvements  prior to the  Closing  Date that would cost
$5,000,000 or less to repair,  Buyer and Seller shall consummate this Agreement,
and Seller's rights to the proceeds,  if any, of insurance  payable to Seller by
reason of such damage or destruction shall be assigned to Buyer and Seller shall
pay Buyer the amount of the deductible under such insurance policy or policies.

                b. In the  event of damage or  destruction  of the  Improvements
prior to the Closing Date in an amount in excess of $5,000,000, either party may
elect to terminate this  Agreement  upon written  notice to the other party,  in
which event the Deposit  shall be returned to Buyer.  If neither party so elects
to  terminate  within  sixty (60) days after the  casualty,  the  parties  shall
consummate this Agreement, with an adjournment in the Closing Date by sixty (60)
days,  or such  shorter  period as the parties may agree,  in which event Seller

                                       16

shall assign to Buyer Seller's rights to insurance proceeds,  if any, payable by
reason of such damage or destruction  and pay to Buyer the deductible  under the
applicable insurance policies.

           12.3.EMINENT  DOMAIN.  If, prior to the Closing,  all of the Land and
Improvements  are  taken by  eminent  domain,  this  Agreement  shall be  deemed
canceled.  If only part of the Land or Improvements are so taken and such taking
(a) requires the removal of any material  portion of the office building located
on the Land,  (b)  results in a loss of access to the  Property  that causes the
Property to fail to comply with  applicable  laws or codes,  or (c) results in a
material  and  adverse  loss of parking at the  Property,  Buyer  shall have the
option of (1) proceeding with the Closing and acquiring the Property as affected
by such taking,  together  with an  assignment  from Seller of all  compensation
awarded to Seller on account of such taking or the right to receive same, or (2)
canceling this Agreement, in which event the Deposit shall be returned to Buyer.
If Buyer  elects  option  (1)  above,  Seller  agrees  to assign to Buyer at the
Closing its rights to such  compensation  and  damages,  and will not settle any
proceedings  relating to such taking  without  Buyer's  prior  written  consent.
Seller shall  promptly  (and in any event prior to the Closing)  notify Buyer of
any actual or threatened condemnation affecting the Property of which Seller has
knowledge (as defined in Section 11.1).

      13.  SELLER'S COVENANTS DURING CONTRACT PERIOD.

           13.1. OPERATION  AND  MANAGEMENT  OF THE  PROPERTY.  Between Seller's
execution of this  Agreement  and the Closing,  or earlier  termination  of this
Agreement as provided for  hereunder,  Seller shall (i) maintain and operate the
Property in accordance  with  Seller's  current  practices,  provided that in no
event shall  Seller be obligated to make any capital  repairs,  replacements  or
improvements to any portion of the Property; (ii) not make any material physical
changes to the  Improvements;  (iii) not enter into any  contracts or agreements
affecting  the Property  unless such  contracts  can be completed or  terminated
prior to the  Closing or Buyer,  in its sole  discretion,  agrees to assume such
contract or agreement as of the Closing Date, in which case such contracts shall
be included  within the term  "Service  Contracts";  (iv) not enter into any new
lease  affecting  the  Property,  extend  the term of any  Lease,  or grant  any
extension options under any Lease; and (vi) during the Due Diligence Period, may
offer the Property for sale  publicly,  but shall not  negotiate the sale of the
Property to or from any party, other than Buyer.

           13.2. FRANKLIN  LEASE.  Prior to the  expiration of the Due Diligence
Period,  Seller shall negotiate an amendment to all of the Leases between Seller
and  Franklin,  in a  form  acceptable  to  Franklin  and  Seller,  whereby  the
expiration  date of all of such the Leases  shall be July 31,  2001,  subject to
Franklin's  right  to  extend  the  term of each  such  Lease  by up to four (4)
additional  thirty  (30) day  periods,  by  delivering  written  notice  of such
extension  to  Buyer,  its  successor  or  assign,  prior  to the  then  current
expiration date, which right shall be exercisable to the extent deemed necessary
by Franklin in the event the new campus to which Franklin intends to relocate is
not ready for occupancy  sufficiently in advance of the then current  expiration
date.  Such  amendment  shall also  include  provisions  that will  require  the
landlord,  including any successor  landlord,  under the Franklin  Leases to (a)
continue  to  manage  and  operate  the  Property  in the  manner in which it is
operated as of the Contract Date,  throughout the remaining term of the Franklin
Leases,  and (b) to retain Franklin as the property manager,  under the terms of

                                       17

the  management  agreement  currently  in effect with  respect to the  Property.
Seller shall deliver such form of amendment to Buyer prior to the  expiration of
the Due Diligence Period. Seller and Franklin shall execute such amendment prior
to the Closing and shall  deliver such  amendment to Buyer at Closing as part of
Seller's delivery of the Leases.

      14.  ASSIGNMENT.  Neither  Buyer nor  Seller  shall  assign  its rights or
delegate its  obligations  hereunder  without the prior  written  consent of the
other  party,  which  consent  may  be  withheld  in  such  other  party's  sole
discretion;  provided,  however,  that Buyer  shall be  permitted  to assign its
rights  and  obligations  under  this  Agreement  to  a  third-party  entity  in
connection  with a synthetic lease  financing,  provided Seller is given written
evidence,  satisfactory to Seller,  of such  assignment,  the existence and good
standing of the  assignee,  and the  necessity of such  assignment  as part of a
synthetic lease financing;  provided,  further, however, that no such assignment
shall operate to relieve Buyer of any of its  obligations  hereunder,  Buyer and
such assignee being jointly and severally  liable for such  obligations from and
after such assignment, and that in no event shall such synthetic lease financing
(or any other  financing) or such assignment be a condition to Closing.  Subject
to the foregoing, this Agreement shall be binding upon, inure to the benefit of,
and be enforceable by the parties hereto and their respective  heirs,  devisees,
executors, administrators, legal representatives, successors and assigns.

      15.  INDEMNIFICATION.  Each  party  hereby  agrees to  indemnify,  defend,
protect and hold  harmless  the other party from and against any and all claims,
demands,   liabilities,   costs  and  damages,   including  without  limitation,
reasonable attorneys' fees (collectively,  "Claims"),  resulting from any breach
of any warranty or covenant  expressly set forth in this  Agreement.  Each party
further agrees to indemnify,  defend,  protect and hold harmless the other party
from and against any Claims  suffered by the other party and  resulting  from or
arising out of all  third-party  tort claims and similar claims of the type that
would typically be insured under a Commercial General Liability Insurance Policy
that are based on actions,  facts or circumstances  existing or occurring during
the indemnifying party's ownership of the Property, excluding any Claims related
to hazardous  substances.  All of the indemnifications set forth in this Section
15 shall  survive the Closing and  conveyance  of the Property to Buyer,  except
that the  obligation  to indemnify  for breaches of  representation  or warranty
shall survive only to the extent that a lawsuit is filed by Seller or Buyer with
respect to such breach within one (1) year after the Closing Date.

      16.  MISCELLANEOUS.

           16.1. NOTICE.  All notices and any other communications  permitted or
required  under this  Agreement  must be in writing  and will be  effective  (i)
immediately upon delivery in person or by facsimile,  provided  delivery is made
during regular business hours or receipt is acknowledged by a person  reasonably
believed by the  delivering  party to be employed by the  recipient,  or (ii) 24
hours after deposit with a commercial  courier or delivery service for overnight
delivery,  provided delivery is made during regular business hours or receipt is
acknowledged  by a person  reasonably  believed  by the  delivering  party to be
employed by the recipient. The inability to deliver because of a changed address

                                       18

of which no notice  was  given,  or  rejection  or other  refusal  to accept any
notice,  shall be deemed to be the  receipt of the notice as of the date of such
inability to deliver or  rejection or refusal to accept.  Any notice to be given
by any party hereto may be given by the counsel for such party. All notices must
be properly  addressed  and  delivered to the parties at the addresses set forth
below, or at such other addresses as either party may subsequently  designate by
written notice given in the manner provided in this Section:

           Seller:        David R. Word
                          430 Cowper Street, Suite 200
                          Palo Alto, California  94301
                          Telephone:  415-990-9292
                          Facsimile:  650-321-4049

           with copies to:Franklin Resources, Inc.
                          777 Mariners Island Boulevard
                          San Mateo, California  94403
                          Attn:  Michael McCulloch
                          Telephone:  650-312-5812
                          Facsimile:  650-312-5830

                          Farella Braun & Martel LLP
                          235 Montgomery Street
                          San Francisco, California  94104
                          Attn:  Anthony D. Ratner
                          Telephone:  415-954-4448
                          Facsimile:  415-954-4480

                          Greene Radovsky Maloney & Share LLP
                          Four Embarcadero Center
                          Suite 4000
                          San Francisco, CA  94111
                          Attn:  Thomas Feldstein
                          Telephone: 415-248-1517
                          Facsimile:  415-777-4961

           Buyer:         Keynote Systems, Inc.
                          2855 Campus Drive
                          San Mateo, California 94403
                          Attn:  John Flavio
                          Telephone:  650-522-1017
                          Facsimile:  650-522-1099

                                       19


           with copy to:  Fenwick & West
                          Two Palo Alto Square
                          Palo Alto, California 94306
                          Attn:  Blakeney Stafford
                          Telephone:  650-494-0600
                          Facsimile:  650-494-1417

           16.2. HEADINGS.  The headings used herein are for purposes of
convenience only and shall not be used in construing the provisions hereof.

           16.3. COVENANT  OF FURTHER  ASSURANCES.  The parties hereby  agree to
execute such other  documents and perform such other acts as may be necessary or
desirable to carry out the purposes of this  Agreement,  whether before or after
Closing.

           16.4. ENTIRE AGREEMENT. This document represents the final, entire
and complete  agreement  between the parties with respect to the subject  matter
hereof  and   supersedes   all  other  prior  or   contemporaneous   agreements,
communications or representations,  whether oral or written, express or implied,
including  that Letter of Intent dated March 31, 2000.  The parties  acknowledge
and agree that they may not and are not relying on any representation,  promise,
inducement,  or other  statement,  whether oral or written and by whomever made,
that is not contained  expressly in this  Agreement.  This Agreement may only be
modified by a written  instrument signed by  representatives  authorized to bind
both parties. Oral modifications are unenforceable.

           16.5. PARTIAL  INVALIDITY.  If any term, covenant or condition of
this Agreement or its application to any person or circumstances  shall be held
to be illegal, invalid or unenforceable,  the remainder of this Agreement or the
application of such term or provisions to other persons or  circumstances  shall
not be affected,  and each term hereof shall be legal,  valid and enforceable to
the  fullest  extent  permitted  by law,  unless an  essential  purpose  of this
Agreement  would be  defeated  by the  loss of the  illegal,  unenforceable,  or
invalid provision.  In the event of such partial  invalidity,  the parties shall
seek in good faith to agree on  replacing  any such legally  invalid  provisions
with valid provisions that, in effect,  will, from an economic  viewpoint,  most
nearly and fairly approach the effect of the invalid provision and the intent of
the parties in entering into this Agreement.

           16.6. NO  WAIVER.  No consent  or waiver by either party to or of any
breach or non-performance of any representation, condition, covenant or warranty
shall be enforceable unless in a writing signed by the party entitled to enforce
performance,  and such  signed  consent or waiver  shall not be  construed  as a
consent to or waiver of any other breach or  non-performance  of the same or any
other representation, condition, covenant, or warranty.

           16.7. ATTORNEYS'  FEES.  In the  event of  any  dispute  between  the
parties,  whether based on contract,  tort or other cause of action or involving
bankruptcy or similar  proceedings,  in any way related to this  Agreement,  the
non-prevailing party shall pay to the prevailing party all reasonable attorneys'

                                       20

fees and costs and expenses of any type, without  restriction by statute,  court
rule or  otherwise,  incurred by the  prevailing  party in  connection  with any
action or proceeding  (including  arbitration  proceedings,  any appeals and the
enforcement  of any judgment or award),  whether or not the dispute is litigated
or  prosecuted to final  judgment.  The  "prevailing  party" shall be determined
based upon an assessment of which party's major  arguments or positions taken in
the action or  proceeding  could  fairly be said to have  prevailed  (whether by
compromise,  settlement, abandonment by the other party of its claim or defense,
final  decision,  after any appeals,  or otherwise) over the other party's major
arguments or positions on major disputed issues.

           16.8. BROKERS  AND  FINDERS.  Neither  party  has had any  contact or
dealings  regarding  the  Property,  through any licensed  real estate broker or
other  persons  who  can  claim a  right  to a  commission  or  finder's  fee in
connection with this transaction,  except for BT Commercial,  representing Buyer
("BROKER").  The  parties  agree  that  Buyer  shall  pay any and all  brokerage
commissions due Broker,  upon consummation of the Closing. In the event that any
other party claims a commission or finder's fee in this  transaction,  the party
through whom the party makes its claim shall be responsible  for said commission
or fee and shall  indemnify the other against all costs and expenses  (including
reasonable  attorneys'  fees)  incurred  in  defending  against  the same.  This
indemnification  obligation  shall  survive the Closing or  termination  of this
Agreement.

           16.9. TIME OF THE ESSENCE.  Time is of the essence of this Agreement.

           16.10. GOVERNING LAW; FORUM. This Agreement is entered into and shall
be  governed  by and  construed  in  accordance  with the  laws of the  State of
California (without giving effect to its choice of law principles).  The parties
agree that all suits or actions of any kind  brought to interpret or enforce the
terms of, or otherwise  arising out of or relating to, this  Agreement  shall be
filed and  litigated  solely in the state  courts in San  Mateo,  California  or
federal courts in San Francisco,  California.  Each party hereby consents to the
personal and subject matter jurisdiction of said courts.

           16.11. INTERPRETATION.  All parties have been represented by counsel
in the preparation  and negotiation of this Agreement,  and this Agreement shall
be  construed  according  to the  fair  meaning  of its  language.  The  rule of
construction  to the effect  that  ambiguities  are to be  resolved  against the
drafting party shall not be employed in interpreting this Agreement.  Unless the
context clearly  requires  otherwise,  (i) the plural and singular numbers shall
each be deemed to include the other;  (ii) the masculine,  feminine,  and neuter
genders shall each be deemed to include the others;  (iii)  "shall,"  "will," or
"agrees" are mandatory, and "may" is permissive; (iv) "or" is not exclusive; (v)
"includes" and "including" are not limiting; and (vi) "days" means calendar days
unless specifically provided otherwise.

           16.12.    EXCHANGE TRANSACTION.  Buyer agrees upon the request of
Seller to cooperate with Seller in closing all or part of this transaction as an
exchange pursuant to Internal Revenue Code Section 1031, provided that:

                                       21

                a.   Buyer shall incur no additional expense or liability in
connection  therewith  and shall not be required  to hold title to any  property
other than the Property;

                b.  Seller  shall  indemnify,  protect,  defend  and hold  Buyer
harmless from any claims, demands, causes of action, judgments,  expenses, costs
and  attorneys  fees that result from Buyer's  compliance  with this  paragraph,
which obligation shall survive the Closing or termination of this Agreement; and

                c.   The Closing is not materially delayed by the exchange.

           16.13.  IRS  FORM  1099-S  DESIGNATION.   In  order  to  comply  with
information  reporting  requirements of Section 6045(e) of the Internal  Revenue
Code of 1986, as amended, and the Treasury Regulations  thereunder,  the parties
agree (i) to execute an IRS Form 1099-S  Designation  Agreement to designate the
Title  Company  (the  "DESIGNEE")  as the  party who  shall be  responsible  for
reporting the contemplated  sale of the Property to the Internal Revenue Service
(the  "IRS")  on IRS Form  1099-S  and (ii) to  provide  the  Designee  with the
information necessary to complete Form 1099-S.

           16.14. THIRD PARTY BENEFICIARIES. This Agreement has been made solely
for the  benefit of the  parties  hereto  and their  respective  successors  and
permitted  assigns,  and nothing in this  Agreement  is  intended  to, or shall,
confer upon any other person any benefits, rights or remedies under or by reason
of this Agreement.

           16.15. COMPLIANCE WITH LAWS.  Each party shall comply with all
applicable  laws,  rules,  regulations,  orders,  consents  and  permits  in the
performance of all of their obligations under this Agreement.

           16.16. LIMITATION ON SELLER'S LIABILITY.  Notwithstanding anything to
the contrary  contained  herein, if Closing shall have occurred (and Buyer shall
not have  waived,  relinquished  or released  any  applicable  rights in further
limitation),  the  aggregate  liability  of  Seller  arising  pursuant  to or in
connection with the representations,  warranties, indemnifications, covenants or
other  obligations  (whether  express or implied) of Seller under this Agreement
(or any document  executed or delivered in connection  herewith)  (collectively,
the   "CONTRACT   LIABILITIES")   shall  not   exceed   Four   Million   Dollars
($4,000,000.00);  provided  that in no event  shall  Seller  be  liable  for any
Contract Liabilities unless the aggregate amount of such liabilities exceeds One
Hundred  Thousand Dollars  ($100,000.00),  in which event Seller shall be liable
for the full amount of such Contract  Liabilities  up to the Four Million Dollar
($4,000,000.00) limitation set forth above. To the extent Seller is comprised of
a corporation,  partnership or other entity, no constituent partner or member in
such corporation,  partnership or other entity, nor any person,  trust or entity
that becomes a constituent partner or member in such corporation, partnership or
other entity, nor any partner, member, manager, shareholder,  director, officer,
employee, beneficiary,  trustee or agent of any of the foregoing, shall have any
personal  liability,  directly or indirectly,  under or in connection  with this
Agreement  or any  agreement  made or  entered  into  under or  pursuant  to the

                                       22

provisions of this  Agreement,  or any amendment to any of the foregoing made at
any time or times,  heretofore or hereafter,  and Buyer and its  successors  and
assigns and,  without  limitation,  all other persons and  entities,  shall look
solely to the interest of Seller in the  Property,  including  the proceeds from
the sale  thereof,  for the  payment  of any claim or for any  performance,  and
Buyer, on behalf of itself and its successors and assigns, hereby waives any and
all such  personal  liability.  Buyer  acknowledges  that Seller is comprised of
various individuals and entities,  whose respective  percentage interests in the
Property are as set forth in the introductory paragraph of this Agreement. Buyer
agrees  that the  obligations  of each of such  individuals  and  entities  with
respect  to  the  Property  and  this  Agreement  are  several  and  not  joint.
Accordingly, each of such individuals and entities shall only be responsible for
its proportionate share of the Contract Liabilities and the foregoing limitation
on liability shall be applied  proportionately  to each of such  individuals and
entities.  This Section 16.16 shall survive the Closing or  termination  of this
Agreement.

           16.17. COUNTERPARTS.  This  Agreement may be signed in any number of
counterparts  with the same effect as if the signatures to each counterpart were
upon a single  instrument,  and is intended to be binding  when all parties have
delivered their signatures to the other parties.  Signatures may be delivered by
facsimile  transmission.  All  counterparts  shall be deemed an original of this
Agreement.

           16.18. EXHIBITS.  All Recitals and Exhibits referred to in this
Agreement are incorporated  herein by reference and shall be deemed part of this
Agreement.

           16.19. AUTHORITY.  The individuals executing this Agreement on behalf
of Seller and Buyer  individually  represent and warrant that he or she has been
authorized to do so and has the power to bind each of the parties for whom he or
she is signing.






      IN WITNESS WHEREOF,  the parties hereto have executed this Agreement as of
the Contract Date.


           SELLER:        FRANKLIN RESOURCES, INC., a Delaware corporation


                          By: /s/ Harmon E. Burns
                              ====================
                          Name:  HARMON E. BURNS
                          Title: Vice Chairman



                          /s/ David R. Word
                          =====================================================
                          David R. Word, on behalf of himself and as
                          attorney-in-fact for Peter A. Nossardi, Jill M.
                          Benitez, Howard E. Wolf, John J. Hamilton, The Board
                          of Trustees of the Leland Stanford Junior University,
                          and The San Francisco Museum of Modern Art


                          /s/ William Wilson, III
                          =====================================================
                          William Wilson III, on behalf of himself and as
                          attorney-in-fact for Peter A. Nossardi, Jill M.
                          Benitez, Howard E. Wolf, John J. Hamilton, The Board
                          of Trustees of the Leland Stanford Junior University,
                          and The San Francisco Museum of Modern Art


           BUYER:         KEYNOTE SYSTEMS, INC., a California corporation

                          By: /s/ John J. Flavio
                              ===========================================
                          Name:  John J. Flavio
                          Title: Vice President and CFO


                          By:____________________________________________
                          Name:__________________________________________
                          Title:_________________________________________


NOTE:  ALL PARTIES MUST INITIAL THE AGREEMENT AT SECTION 3.




                                    EXHIBIT A

                             DESCRIPTION OF THE LAND

PARCEL I:

Parcel "C" as shown on that  certain map entitled  "MARINERS  ISLAND UNIT NO. 4,
BEING A  SUBDIVISION  OF LOTS 2 & 3 BLOCK 4 AND LOT 1 BLOCK 5,  MARINERS  ISLAND
UNIT NO. 2 RECORDED IN VOLUME 64 OF MAPS AT PAGES 31 TO 35 INCLUSIVE, LOTS 1, 2,
3 & 4,  BLOCK 1 MARINERS  ISLAND  UNIT NO. 3,  RECORDED  IN VOLUME 67 OF MAPS AT
PAGES  19 TO 27  INCLUSIVE,  AND  ADJOINING  ACREAGE  BEING A  PORTION  OF LANDS
DESCRIBED IN GRANT DEED RECORDED ON MARCH 30, 1977 IN BOOK 7424 AT PAGE 182, SAN
MATEO COUNTY RECORDS, CITY OF SAN MATEO, SAN MATEO COUNTY, CALIF.", filed in the
office of the County Recorder of San Mateo County, State of California, on April
4, 1979 in Book 99 of Maps at page(s) 35 to 38 inclusive.

PARCEL II:

A  NON-EXCLUSIVE  EASEMENT for employee,  invitees and customer  traffic for the
purpose  only of ingress  and  egress to and from  Parcel C as shown on that map
(the "Final Map")  recorded  April 4, 1979 in Volume 99 of Maps at pages 35, 36,
37 and 38 in the Official Records of the County of San Mateo,  California;  over
and across a strip of land not exceeding at any point a width of 44 feet as more
particularly described on the Final Map as the "44' access easement".

Said easement is appurtenant to Parcel I above and was created by reservation in
Deed recorded April 6, 1979 in Reel 7836 of Official  Records at page 443, (File
No.  92543-AN),  Records of San Mateo  County,  California  and by dedication on
Certificate  Sheet  of the  subdivision  map  of  Mariners  Island  Unit  No.  4
hereinabove referred to.



                                    EXHIBIT B



                           TANGIBLE PERSONAL PROPERTY



  To be prepared by Seller and delivered to Buyer at least 5 days prior to the
  expiration of the Due Diligence Period.



                                    EXHIBIT C


                           TENANT ESTOPPEL CERTIFICATE


TO:   KEYNOTE SYSTEMS, INC.
      ____________________
      ____________________
      ____________________



      Re:  Suite ____________, _________________,_________________ (the
"Premises")

      This estoppel  certificate is delivered by the  undersigned  ("Tenant") to
Keynote Systems, Inc., a California corporation ("Buyer") in connection with its
contemplated  purchase of certain real property  commonly  known as 777 Mariners
Island  Boulevard in San Mateo,  California (the  "Property")  from the Mariners
Island   Co-Tenancy   ("Landlord").   Tenant  hereby   certifies  the  following
information  on which  Buyer may rely in  connection  with its  purchase  of the
Property and Lender may rely in connection with its making a loan secured by the
Property:

      1. The  undersigned  is the tenant in possession  of the Premises  under a
written  lease with  Landlord,  dated  _________________,  19__,  [as amended by
________________],  which lease [as amended]  (the "Lease") is in full force and
effect and each  provision of which is binding on Tenant in accordance  with its
terms.  The Lease has not been modified or amended,  except as specifically  set
forth above, and contains the entire  understanding and agreement between Tenant
and Landlord concerning the Premises.  A true, complete and accurate copy of the
Lease is attached hereto as Exhibit A.

      2.   The Premises consist of approximately ___________ rentable square
feet of office space.

      3.   The term of the Lease commenced on _____________ and terminates on
____________.

      4.   Current monthly base rent under the Lease is _______.  Base rent has
been paid through the period ending ________.  Tenant has not paid more than one
month of base rent in  advance.  As of the date  hereof,  Tenant has no existing
right to free rent,  partial rent, rent rebate,  credit for  improvements,  rent
abatement, or other rental concessions or any right to payments from Landlord to
Tenant except as follows:_______________________________________________________
________________________________________________________________________________
________________________________________________________________________________
_______________________________________________________________________________.


      5.   Tenant has not assigned its rights under the Lease or sublet any
portion of the Premises.

      6. There are no actions,  whether voluntary or otherwise,  pending against
Tenant  under any  insolvency,  bankruptcy  or other  debtor  relief laws of the
United States or of any state.

      7. All  insurance  required of Tenant under the Lease has been obtained by
Tenant and all premiums have been paid.

      The  statements  made herein shall be binding upon us, our  successors and
assigns,  and shall inure to your benefit and the benefit of your successors and
assigns. The officers executing this letter have been duly empowered to do so on
behalf of the undersigned.

      Each of you may consider this  certificate and the  information  contained
herein  accurate as of any date that is within 60 days after the date hereof set
forth  below,  except to the extent we notify you in writing at your address set
forth above of changes to the within-described information.

      Dated: ____________________
                                    Very truly yours,

                                    By:__________________________________
                                    Name:________________________________
                                    Its:_________________________________





                                    EXHIBIT D


                                  BILL OF SALE


           THIS  BILL  OF  SALE  is   executed  as  of  the   ________   day  of
_______________,  19__  by , a  ("Seller")  in  favor  of  _________________,  a
___________________ ("Buyer").

                                    RECITALS

      A. Reference is made to certain real property and the improvements thereon
commonly  known as  __________________  and  located at  ______________________,
which real  property is more  thoroughly  described in attached  SCHEDULE I (the
"Property").  Concurrently  herewith,  Seller is  selling  to Buyer and Buyer is
purchasing from Seller all of Seller's interest in the Property.

      B. In connection with the sale of the Property to Buyer, Seller desires to
transfer to Buyer all of Seller's  interest in the  personal  property  owned by
Seller and used in connection with the operation of the Property.

      IN  CONSIDERATION  OF THE  FOREGOING,  and for  other  good  and  valuable
consideration, Seller agrees as follows:

      Seller  hereby  grants,  transfers  and  conveys to Buyer all of  Seller's
interest in all of the tangible  personal  property  identified  on SCHEDULE II,
attached hereto.

      Seller  hereby  agrees to execute  such other  documents  and perform such
other acts as may be  necessary  or  desirable to carry out the purposes of this
Bill of Sale.

      IN WITNESS  WHEREOF,  Seller has executed this Bill of Sale this _____ day
of __________ 2000.
                          _______________________, a _________________________
                          By: _____________________________
                          Name: ___________________________
                          Title: __________________________



                           SCHEDULE I TO BILL OF SALE


                           Description of the Property



                           SCHEDULE II TO BILL OF SALE


                        Itemization of Personal Property

           [Same as Exhibit B to the Purchase Agreement]




                                    EXHIBIT E


                              ASSIGNMENT OF LEASES


      THIS ASSIGNMENT OF LEASES is executed as of the _____ day of __________,
 19__, between ____________________, a ____________________ ("Assignor") and
________________, a __________________ ("Assignee").

                                    RECITALS

      A. Reference is made to certain real property and the improvements thereon
commonly  known as  ______________  and located at  _______________,  which real
property is more thoroughly  described in attached  SCHEDULE I (the "Property").
Concurrently herewith,  Assignor is selling to Assignee all of Seller's interest
in the Property.

      B. In  connection  with the sale of the  Property  to  Assignee,  Assignor
desires to assign to Assignee  all of  Assignor's  interest as lessor  under all
leases and occupancy  agreements existing with respect to space in the Property,
which leases and occupancy  agreements  are listed in attached  Schedule II (the
"Leases").

      IN CONSIDERATION of the foregoing, the parties hereto agree as follows:

      1.   Assignor hereby grants, conveys, assigns and transfers to Assignee
all of Assignor's rights, title and interest in the Leases.

      2.   Concurrently herewith, Assignor has assigned and delivered to
Assignee the security deposits listed on Schedule II hereto.

      3.   Assignee hereby assumes Assignor's obligations under the Leases
arising from and after the date hereof and acknowledges  receipt of the security
deposits on Schedule II.

      4. In the event any dispute  between the parties  hereto  should result in
litigation or  arbitration,  the  prevailing  party shall be reimbursed  for all
reasonable  costs  in  connection  therewith,  including,  but not  limited  to,
reasonable attorneys' fees and defense costs.

      5. The  terms of this  Assignment  of Leases  shall  bind and inure to the
benefit of the parties hereto and their respective heirs, legal representatives,
successors and assigns.

      6. The parties  hereby agree to execute such other  documents  and perform
such other acts as may be  necessary  or  desirable to carry out the purposes of
this Assignment of Leases.






           IN WITNESS  WHEREOF,  the parties have  executed  this  Assignment of
Leases as of the date and year first above written.

Assignor:                           Assignee:
_________________________           _________________________
_________________________           _________________________



By: _____________________           By: _____________________
Name:____________________           Name:____________________
Title:___________________           Title:___________________




                SCHEDULE I TO ASSIGNMENT OF LEASES


                           Description of the Property




                SCHEDULE II TO ASSIGNMENT OF LEASES


               List of Leases and Security Deposits




                                    EXHIBIT F


                                   ASSIGNMENT


      THIS ASSIGNMENT is executed as of the _____ day of __________, 2000,
between ____________________, a _____________________ ("Assignor") and
__________________, a _____________________ ("Assignee").

                                    RECITALS

      A. Reference is made to certain real property and the improvements thereon
commonly known as __________________ and located at ________________, which real
property is more thoroughly  described in attached  SCHEDULE I (the "Property").
Concurrently herewith,  Assignor is selling to Assignee all of Seller's interest
in the Property pursuant to the terms of that certain Purchase Agreement,  dated
April ___, 2000,  by  and  between   Assignor  and  Assignee  (the  "Purchase
Agreement").  All capitalized terms used herein and not otherwise defined herein
shall have the meanings given them in the Purchase Agreement.

      B. In  connection  with the sale of the  Property  to  Assignee,  Assignor
desires  to  assign to  Assignee  all of  Assignor's  interest  in the  service,
utility,  management,  maintenance and other  contracts or agreements  listed in
attached SCHEDULE II ("Service Contracts").

      C.   In addition, Assignor desires to assign to Assignee, to
the extent assignable, Assignor's interest in the Approvals,
Plans, Reports and Warranties;

      IN CONSIDERATION of and incorporating the foregoing Recitals,  the parties
hereto agree as follows:

           1. Assignor hereby assigns, grants, conveys and transfers to Assignee
all of  Assignor's  rights,  title and  interest  in the Service  Contracts.  In
addition, to the extent assignable, Assignor hereby assigns, grants, conveys and
transfers  to  Assignee  all of  Assignor's  rights,  title and  interest in the
Approvals, Plans, Reports and Warranties.

           2. Assignee hereby assumes  Assignor's  obligations under the Service
Contracts,  Approvals,  Plans, Reports and Warranties arising from and after the
date hereof.

           3. In the event any dispute  between the parties hereto should result
in litigation or arbitration,  the prevailing  party shall be reimbursed for all
reasonable  costs  in  connection  therewith,  including,  but not  limited  to,
reasonable attorneys' fees and defense costs.

           4. The terms of this  Assignment  shall bind and inure to the benefit
of the  parties  hereto  and  their  respective  heirs,  legal  representatives,
successors and assigns.


                                       2

           5. The  parties  hereby  agree to execute  such other  documents  and
perform  such  other  acts as may be  necessary  or  desirable  to carry out the
purposes of this Assignment.

           IN WITNESS  WHEREOF,  the parties have executed this Assignment as of
the date and year first above written.

Assignor:                           Assignee:
_________________________           __________________________
_________________________           __________________________



By: _____________________           By:_______________________
Name:____________________           Name:_____________________
Title:___________________           Title:____________________



                                       2


         SCHEDULE I TO THE ASSIGNMENT OF SERVICE CONTRACTS


                           Description of the Property




        SCHEDULE II TO THE ASSIGNMENT OF SERVICE CONTRACTS


                            List of Service Contracts




                                    EXHIBIT G

                             NON-FOREIGN CERTIFICATE

      Section 1445 of the Internal  Revenue Code provides that a buyer of a U.S.
real property  interest must withhold tax if the seller is a foreign person.  To
inform _______________,  a ______________ (the "Buyer"), that withholding tax is
not required upon the  disposition of a U.S. real property  interest by
____________________, a ____________________(the "Seller"), the undersigned
hereby certifies the following on behalf of Seller:

           1.   Seller is not a foreign corporation, foreign partnership,
foreign trust or foreign estate (as those terms are defined in the Internal
Revenue Code and Income Tax Regulations);

           2.   Seller's U.S. employer identification number is _______________;
and

           3.   Seller's office address is _____________________________________
_______________________________________________________________________________.

      I, ___________________________________, understand that this certification
may be disclosed to the Internal Revenue Service by the Buyer and that any false
statement I have made here could be punished by fine, imprisonment or both.

      Under  penalties  of  perjury,   I  declare  that  I  have  examined  this
certification and to the best of my knowledge and belief it is true, correct and
complete,  and I further  declare that I have authority to sign this document on
behalf of Seller.

Dated: _________________, 19__

                                    By:___________________________________
                                          (Individual Signatory)

                                    Name:_________________________________
                                    Title:________________________________
                                          Authorized Representative for Seller




                                    EXHIBIT H


                                NOTICE TO TENANT


(TENANT'S NAME AND ADDRESS)
_______________________________
_______________________________
_______________________________


      Re:  Purchase of the building known as ________________________  and
           located at_______________________________ ("Property"), by
           ______________________, a __________________________ ("New Owner")

Dear Sir or Madam:

      We hereby  notify you that we have sold the  Property,  in which you are a
tenant,  and assigned your lease to New Owner,  effective as of  _____________ .
New Owner will be your landlord effective immediately.

      Prior to such sale, we were holding a security deposit from you under your
lease in the amount of $_____________,  which amount has been transferred to New
Owner.

      From this date forward you are authorized and directed to make any payment
due to the landlord under your lease to New Owner,  which should be delivered to
its managing agent, _______________________, at the following address:
_____________________________.  Your checks should be made payable to New Owner.

      New Owner and  _________________________  are  looking  forward to working
with you.


                                    Seller: _________________________

                                    By:______________________________
                                    Name:____________________________
                                    Title:___________________________
                                    Date:____________________________



                                   EXHIBIT I

                                     LEASES



                       DOCUMENT              DOCUMENT
TENANT                 TYPE                  DATE           LESSOR                 LESSEE
                                                                       

Franklin Resources
                       Lease                 11/30/84       Mariner Partners       Franklin Resources, Inc.
                       First Amendment       1/21/86        Mariner Partners       Franklin Resources, Inc
                       Second Amendment      8/25/86        Mariner Partners       Franklin Resources, Inc
                       Third Amendment       12/29/86       Mariner Partners       Franklin Resources, Inc
                       Fourth Amendment      7/1/87         Mariner Partners       Franklin Resources, Inc
                       Fifth Amendment       7/27/87        Mariner Partners       Franklin Resources, Inc
                       Sixth Amendment       4/15/89        Mariner Partners       Franklin Resources, Inc
                       Seventh Amendment     5/28/93        Mariner Partners       Franklin Resources, Inc
                       Eighth Amendment      2/26/96        Mariner Partners       Franklin Resources, Inc
                       Ninth Amendment       11/27/96       Mariner Partners       Franklin Resources, Inc
                       Tenth Amendment       8/19/98        Mariner Partners       Franklin Resources, Inc


Hanson, Norris & Rossi
                       Lease                 11/11/85       Mariner Partners       Hanson & Norris
                       Extension of Lease    4/1/91         Mariner Partners       Hanson, Norris & Rossi
                       Second Amendment      1/19/96        Mariner Partners       Hanson, Norris & Rossi

Wall Street Cafe
                       Lease                 2/11/87        Mariner Partners       Executive Suite
                       Consent to Assignment 9/16/88        Mariner Partners       Executive Suite
                                                            (assigned to Tony, Juliette and Robert Bazlamit)

                       First Amendendment    3/21/97        Mariner Partners       Tony, Juliette and Robert
                                                                                       Bazlamit, dba Wall
                                                                                       Street Cafe