Document:

<PAGE>

                                                                 Exhibit 10.74.2
                                                                 ---------------

                            INTERCREDITOR AGREEMENT

          THIS INTERCREDITOR AGREEMENT is entered into as of April 18, 2000, by
and among IMPERIAL BANK, a California banking company (the "Bank"), SYNBIOTICS
CORPORATION, a California corporation, ("Synbiotics") and KIRKEGAARD & PERRY
LABORATORIES, INC. a Maryland corporation ("KPL");

          WHEREAS, Bank has made a loan to Synbiotics in the original principal
amount of $10 million pursuant to a Credit Agreement, dated April 12, 2000,
between Bank and Synbiotics (the "Credit Agreement"), which loan is secured by
certain assets of Synbiotics pursuant to a Commercial Security Agreement, dated
April 12, 2000, by and between Bank and Synbiotics (the "Bank Security
Agreement");

          WHEREAS, Synbiotics is acquiring certain assets of KPL pursuant to an
Asset Purchase Agreement of even date herewith for a purchase price of up to
$6,000,000, a portion of which purchase price is evidenced by a Secured
Promissory Note, in the original purchase price of $1,000,000 made by Synbiotics
and payable to the order of KPL (the "KPL Note") and is secured by certain
assets sold by KPL to Synbiotics pursuant to a Security Agreement of even date
herewith (the "KPL Security Agreement");

          WHEREAS, the parties desire to enter into this Agreement to set forth
certain rights and obligations with respect to each other.

          NOW THEREFORE, in consideration of the foregoing and for other good
and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties agree as follows:

          1.  The parties acknowledge and agree that (a) pursuant to the KPL
Security Agreement KPL asserts a first priority perfected security interest in
all of the assets forth on Schedule 1 to the KPL Security Agreement (the "KPL
Secured Assets") and that (b) Bank asserts a second priority perfected security
interest in the KPL Secured Assets.

          2.  The parties acknowledge and agree that Bank asserts a first
priority security interest in all of the assets of Synbiotics other than the KPL
Secured Assets.

          3.  KPL acknowledges and agrees that it will not accept any payments
under the KPL Note other than the proceeds of the KPL Secured Assets if, and
only if, prior to the receipt of any such payment it receives prior written
notice ("Notice") of the occurrence of (i) a payment default by Synbiotics under
the Credit Agreement for so long as there is an outstanding amount due and
payable under the Credit Agreement or (ii) a default other than a payment
default by Synbiotics under the Credit Agreement (a "Non-Payment Default") for
so long as such Non-Payment Default remains uncured or unwaived, but in no event
longer than 180 days from occurrence of such Non-Payment Default.
<PAGE>

          4.  KPL acknowledges and agrees that in the event it receives a
payment under the KPL Note other than the proceeds of the KPL Secured Assets
after it receives a Notice, it shall promptly remit such payment to Bank for so
long as (i) in the event of a payment default by Synbiotics under the Credit
Agreement, there is an outstanding amount due and payable under the Credit
Agreement or (ii) in the event of a Non-Payment Default, such Non-Payment
Default remains uncured or unwaived, but in no event longer than 180 days after
the occurrence of such Non-Payment Default. Nothing herein shall be deemed to
release, waive, limit, condition or modify any right which KPL may have to the
KPL Secured Assets or the proceeds thereof.

          5.  Each of KPL and Bank agrees to provide written notice to the other
of a payment default under the KPL Note or the Bank Note, respectively, within 5
days after the occurrence of such failure to make such payment when due.
Furthermore, Bank shall promptly notify KPL if any default that is the subject
of a Notice is cured.

          6.  This Agreement shall be governed by and construed in accordance
with the laws of the State of California (excluding the conflict rules thereof).

          7.  This Agreement may be executed in one or more counterparts which,
when taken together, shall constitute one and the same instrument.

                                       2
<PAGE>

          IN WITNESS WHEREOF, each of the undersigned have caused this Agreement
to be duly executed and delivered in its name and on its behalf as of the date
first set forth above.

                                 IMPERIAL BANK

                                 By: /s/ Jamie Harney
                                     ----------------
                                 Name: Jamie Harney
                                 Title: Vice President

                                 SYNBIOTICS CORPORATION

                                 By: /s/ Michael Green
                                     -----------------
                                 Name: Michael Green
                                 Title: Vice President - Finance

                                 KIRKEGAARD & PERRY
                                 LABORATORIES, INC.

                                 By: /s/ Albert Perry
                                     ----------------
                                 Name: Albert Perry
                                 Title: President

                                       3<PAGE>

                         REGISTRATION RIGHTS AGREEMENT

          THIS REGISTRATION RIGHTS AGREEMENT, dated as of October 6, 2000, is
entered into by and among Kilroy Realty Corporation, a Maryland corporation (the
"Company" or the "REIT"), Kilroy Realty, L.P., a Delaware limited partnership
(the "Operating Partnership"), and the unit holder whose name is set forth on
the signature pages hereto (the "Unit Holder").

                                    RECITALS
                                    --------

          WHEREAS, the Company, the Operating Partnership and the Unit Holder as
the party which owns a ninety-nine percent(99%) limited partnership interest in
Imperial Partners 25, L.P., a Delaware limited partnership, (the "Property")
will engage in certain transactions whereby the Unit Holder will contribute to
the Property to the Operating Partnership;

          WHEREAS, the Unit Holders will receive units of limited partnership
interests ("OP Units") in the Operating Partnership in exchange for the
Property;

          WHEREAS, pursuant to the Partnership Agreement (as defined below), OP
Units owned by the Unit Holders will be redeemable for cash or exchangeable for
shares of common stock of the Company, par value $.01 per share (the "Common
Stock"), upon the terms and subject to the conditions contained therein; and

          WHEREAS, the Unit Holder is willing to contribute the Property in
consideration of receiving the OP Units and the registration rights provided for
in this Agreement;

          NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein contained, and for good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

                                   ARTICLE I
                                  DEFINITIONS

          SECTION 1.1.  Definitions.  In addition to the definitions set forth
                        -----------
above, the following terms, as used herein, have the following meanings:

          "Affiliate" of any Person means any other Person directly or
indirectly controlling or controlled by or under common control with such
Person.  For the purposes of this definition, "control" when used with respect
to any Person, means the possession, directly or indirectly, of the power to
direct or cause the direction of the management and policies of such Person,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

          "Agreement" means this Registration Rights Agreement, as it may be
amended, supplemented or restated from time to time.

                                       1
<PAGE>

          "Articles of Incorporation" means the Articles of Amendment and
Restatement of the Company as filed with the Secretary of State of the State of
Maryland, as amended, modified or restated from time to time.

          "Business Day" means any day except a Saturday, Sunday or other day on
which commercial banks in New York, New York or Los Angeles, California are
authorized by law to close.

          "Code" means the Internal Revenue Code of 1986, as amended from time
to time or any successor statute thereto, as interpreted by the applicable
regulations thereunder.

          "Commission" means the Securities and Exchange Commission.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "Exchangeable OP Units" means OP Units which may be redeemable for
cash or exchangeable for Common Stock pursuant to Section 8.6 of the Partnership
Agreement (without regard to any limitations on the exercise of such exchange
right as a result of the Ownership Limit Provisions, as defined below).

          "General Partner" means the Company or its successors as general
partner of the Operating Partnership.

          "Holder" means any Unit Holder who is the record or beneficial owner
of any Registrable Security or any assignee or transferee of such Registrable
Security (including assignments or transfers of Registrable Securities to such
assignees or transferees as a result of the foreclosure on any loans secured by
such Registrable Securities) unless such Registrable Security is acquired in a
public distribution pursuant to a registration statement under the Securities
Act or pursuant to transactions exempt from registration under the Securities
Act, in each such case where securities sold in such transaction may be resold
without subsequent registration under the Securities Act.

          "Incapacitated" shall have the meaning set forth in the Partnership
Agreement.

          "Ownership Limit Provisions" mean the various provisions of the
Articles of Incorporation set forth in Article IV thereof restricting the
ownership of Common Stock by certain Persons to specified percentages of the
outstanding Common Stock.

          "Partnership Agreement" means the Fourth Amended and Restated
Agreement of Limited Partnership of Kilroy Realty, L.P. dated as of November
24,1998, as the same may be amended, modified or restated from time to time.

          "Person" means an individual or a corporation, partnership, limited
liability company, association, trust, or any other entity or organization,
including a government or political subdivision or an agency or instrumentality
thereof.

                                       2
<PAGE>

          "Piggy-Back Registration" means a Piggy-Back Registration as defined
in Section 2.2 hereof.

          "REIT" means a real estate investment trust under Section 856 through
Section 860 of the Code.

          "Registrable Securities" means shares of Common Stock of the Company
at any time owned, either of record or beneficially, by any Holder and no matter
how acquired (including, without limitation, shares of Common Stock issuable
upon exchange of Exchangeable OP Units) until (i) a registration statement
covering such securities has been declared effective by the Commission and such
shares have been sold or transferred pursuant to such effective registration
statement, (ii) such shares are sold under circumstances in which all of the
applicable conditions of Rule 144 under the Securities Act (or any similar
provisions then in force) under the Securities Act are met or under which such
shares may be sold pursuant to Rule 144(k) under the Securities Act or (iii)
such shares have been otherwise transferred in a transaction that would
constitute a sale thereof under the Securities Act, the Company has delivered a
new certificate or other evidence of ownership for such shares not bearing the
Securities Act restricted stock legend and such shares may be resold without
subsequent registration under the Securities act.

          "Securities Act" means the Securities Act of 1933, as amended.

          "Selling Holder" means a Holder who is selling Registrable Securities
pursuant to a registration statement under the Securities Act pursuant to this
Agreement.

          "Underwriter" means a securities dealer who purchases any Registrable
Securities as principal and not as part of such dealer's market-making
activities.

                                   ARTICLE II
                              REGISTRATION RIGHTS
                              -------------------

          SECTION 2.1.  Shelf Registration.  Commencing on or after October 31,
                        ------------------
2001, the Company shall prepare and file a "shelf" registration statement with
respect to shares of Common Stock issuable upon the exchange of Exchangeable
OP Units covering the issuance by the Company and the resale thereof by the
Holders on an appropriate form for an offering to be made on a continuous basis
pursuant to Rule 415 under the Securities Act (the "Shelf Registration
Statement") and shall use its best efforts to cause the Shelf Registration
Statement to be declared effective on or as soon as practicable after such date,
and to keep such Shelf Registration Statement continuously effective for a
period ending when all shares of Common Stock covered by the Shelf Registration
Statement have been issued and resold.

          SECTION 2.2.  Piggy-Back Registration.  (a) If the Company proposes to
                        -----------------------
file a registration statement under the Securities Act with respect to an
offering by the Company for its own account (a "Primary Registration") or for
the account of any of its respective securityholders of Common Stock (other than
(i) any registration statement filed by the Company under the Securities Act
relating to an offering of Common stock for its own account as a result of the

                                       3
<PAGE>

exercise of the exchange rights set forth in Section 8.6 of the Partnership
Agreement, and covering the resale by the Holders of the shares of common stock
received in such exchange, or (ii) a registration state}ent on Form S-4 or S-8
(or any substitute form that may be adopted by the Commission) or filed in
connection with an exchange offer or offering of securities solely to the
Company's existing securityholders) (a "Secondary Registration"), then the
Company shall give written notice of such proposed filing to the Holders of
Registrable Securities as soon as practicable (but in no event less than ten
(10) days before the anticipated filing date), and such notice shall offer such
Holders the opportunity to register such number of shares of Registrable
Securities as each such Holder may request (a "Piggy-Back Registration").  The
Company shall use its commercially reasonable efforts to cause the managing
Underwriter or Underwriters of a proposed underwritten offering to permit the
Registrable Securities requested to be included in a Piggy-Back Registration to
be included on the same terms and conditions as any similar securities of the
Company included therein.

          (b) Withdrawal from Registration.  Any Holder requesting inclusion of
              ----------------------------
Registrable Securities pursuant to this Section 2.2 may, at any time prior to
the effective date of the registration statement relating to such registration,
revoke such request by delivering written notice of such revocation to the
Company; provided, however, that if the Company, in consultation with its
         --------  -------
financial and legal advisors, determines that such revocation would materially
delay the registration or otherwise require a recirculation of the prospectus
contained in the registration statement, then such Holder shall have no such
right to revoke its request.  If the withdrawal of any Registrable Securities
would allow, within the marketing limitations set forth above, the inclusion in
the underwriting of a greater number of shares of Registrable Securities, then,
to the extent practicable and without delaying the underwriting, the Company
shall offer to the Holders an opportunity to include additional shares of
Registrable Securities in the proportions discussed in Section 2.3 below.

          (c) Termination or Withdrawal by the Company.  The Company shall have
              ----------------------------------------
the right to terminate or withdraw any registration initiated by it under this
Section 2.2 prior to the effectiveness of such registration whether or not any
Holder has elected to include securities in such registration.

          SECTION 2.3.  Reduction of Offering.  Notwithstanding anything
                        ---------------------
contained herein, if the managing Underwriter or Underwriters of an offering
described in Section 2.2 hereof are of the opinion that (i) the size of the
offering that the Holders, the Company and/or such other persons intend to make
or (ii) the kind of securities that the Holders, the Company and/or any other
persons or entities intend to include in such offering are such that the success
of the offering would be materially and adversely affected by inclusion of the
Registrable Securities requested to be included, then (A) if the size of the
offering is the basis of such Underwriter's opinion, the amount of securities to
be offered for the accounts of Holders shall be reduced pro rata (according to
the Registrable Securities proposed for registration) to the extent necessary to
reduce the total amount of securities to be included in such offering to the
amount recommended by such managing Underwriter or Underwriters; provided that
                                                                 --------
if securities are being offered for the account of other persons or entities as
well as the Company, then (1) in the case of a Primary Registration, the
reduction in the amount of securities requested to be offered shall be made
first

                                       4
<PAGE>

pro rata among securities offered for the accounts of Holders and such other
persons or entities, and (2) in the case of a Secondary Registration, the
reduction in the amount of securities requested to be offered shall be made in
accordance with the terms of the registration rights agreement pursuant to which
such Secondary Registration is made, provided that if any such registration
rights agreement is silent with respect to reductions in shares being registered
thereunder, then with respect to the Registrable Securities intended to be
offered by Holders, the proportion by which the amount of such class of
securities intended to be offered by Holders is reduced shall not exceed the
proportion by which the amount of such class of securities intended to be
offered by such other persons or entities is reduced and (B) if the combination
of securities to be offered is the basis of such Underwriter's opinion, (x) the
Registrable Securities to be included in such offering shall be reduced as
described in clause (A) above (subject to the proviso in clause (A)) or, (y) if
the actions described in clause (x) would, in the judgment of the managing
Underwriter, be insufficient to substantially eliminate the adverse effect that
inclusion of the Registrable Securities requested to be included would have on
such offering, such Registrable Securities will be excluded from such offering.

          SECTION 2.4.  Registration Procedures; Filings; Information.  In
                        ---------------------------------------------
connection with any Shelf Registration Statement under Section 2.1 hereof, the
Company will use its best efforts to effect the registration and the sale of
such Registrable Securities in accordance with the intended method of
disposition thereof as quickly as practicable, and in connection with any such
request:

          (a) The Company will as expeditiously as possible prepare and file
with the Commission a registration statement on any form for which the Company
then qualifies or which counsel for the Company shall deem appropriate and which
form shall be available for the sale of the Registrable Securities to be
registered thereunder in accordance with the intended method of distribution
thereof, and use its best efforts to cause such filed registration statement to
become and remain effective for a period of not less than 180 days or in the
case of a Shelf Registration Statement as provided in Section 2.1 hereof.

          (b) The Company will, if requested, prior to filing a registration
statement or prospectus or any amendment or supplement thereto, furnish to each
Selling Holder and each Underwriter, if any, of the Registrable Securities
covered by such registration statement or prospectus copies of such registration
statement or prospectus or any amendment or supplement thereto as proposed to be
filed, and thereafter furnish to such Selling Holder and Underwriter, if any,
such number of conformed copies of such registration statement, each amendment
and supplement thereto (in each case including all exhibits thereto and
documents incorporated by reference therein), the prospectus included in such
registration statement (including each preliminary prospectus) and such other
documents as such Selling Holder or Underwriter may reasonably request in order
to facilitate the disposition of the Registrable Securities owned by such
Selling Holder.

          (c) After the filing of the registration statement, the Company will
promptly notify each Selling Holder of Registrable Securities covered by such
registration

                                       5
<PAGE>

statement of any stop order issued or threatened by the Commission and take all
reasonable actions required to prevent the entry of such stop order or to remove
it if entered.

          (d) The Company will use its best efforts to (i) register or qualify
the Registrable Securities under such other securities or blue sky laws of such
jurisdictions in the United States (where an exemption is not available) as any
Selling Holder or managing Underwriter or Underwriters, if any, reasonably (in
light of such Selling Holder's intended plan of distribution) requests and (ii)
cause such Registrable Securities to be registered with or approved by such
other governmental agencies or authorities as may be necessary by virtue of the
business and operations of the Company and do any and all other acts and things
that may be reasonably necessary or advisable to enable such Selling Holder to
consummate the disposition of the Registrable Securities owned by such Selling
Holder; provided that the Company will not be required to (A) qualify generally
        --------
to do business in any jurisdiction where it would not otherwise be required to
qualify but for this paragraph (d), (B) subject itself to taxation in any such
jurisdiction or (C) consent to general service of process in any such
jurisdiction.

          (e) The Company will immediately notify each Selling Holder of such
Registrable Securities, at any time when a prospectus relating thereto is
required to be delivered under the Securities Act, of the occurrence of an event
requiring the preparation of a supplement or amendment to such prospectus so
that, as thereafter delivered to the purchasers of such Registrable Securities,
such prospectus will not contain an untrue statement of a material fact or omit
to state any material fact required to be stated therein or necessary to make
the statements therein, in light of the circumstances then existing, not
misleading and promptly make available to each Selling Holder a reasonable
number of copies of any such supplement or amendment.

          (f) The Company will enter into customary agreements (including an
underwriting agreement, if any, in customary form) and take such other actions
as are reasonably required in order to expedite or facilitate the disposition of
such Registrable Securities.

          (g) The Company will make available for inspection by any Selling
Holder of such Registrable Securities, any Underwriter participating in any
disposition pursuant to such registration statement and any attorney, accountant
or other professional retained by any such Selling Holder or Underwriter
(collectively, the "Inspectors"), all financial and other records, pertinent
corporate documents and properties of the Company (collectively, the "Records")
as shall be reasonably necessary to enable them to exercise their due diligence
responsibility, and cause the Company's officers, directors and employees to
supply all information reasonably requested by any Inspectors in connection with
such registration statement.  Records which the Company determines, in good
faith, to be confidential and which it notifies the Inspectors are confidential
shall not be disclosed by the Inspectors unless (i) the disclosure of such
Records is necessary to avoid or correct a misstatement or omission in such
registration statement or (ii) the release of such Records is ordered pursuant
to a subpoena or other order from a court of competent jurisdiction.  Each
Selling Holder of such Registrable Securities agrees that information obtained
by it as a result of such inspections shall be deemed confidential and shall not
be used by it as the basis for any market transactions in the securities of the
company or its Affiliates or otherwise disclosed by it unless and until such is
made generally

                                       6
<PAGE>

available to the public. Each Selling Holder of such Registrable Securities
further agrees that it will, upon learning that disclosure of such Records is
sought in a court of competent jurisdiction, give notice to the Company and
allow the Company, at its expense, to undertake appropriate action to prevent
disclosure of the Records deemed confidential.

          (h) The Company will furnish to each Selling Holder and to each
Underwriter, if any, a signed counterpart, addressed to such Selling Holder or
Underwriter, of (i) an opinion or opinions of counsel to the Company and (ii) a
comfort letter or comfort letters from the Company's independent public
accountants (to the extent permitted by the standards of the American Institute
of Certified Public Accountants), each in customary form and covering such
matters of the type customarily covered by opinions or comfort letters, as the
case may be, as the Holders of a majority of the Registrable Securities included
in such offering or the managing Underwriter or Underwriters therefor reasonably
requests.

          (i) The Company will otherwise use its best efforts to comply with all
applicable rules and regulations of the Commission, and make available to its
securityholders, as soon as reasonably practicable, an earnings statement
covering a period of twelve (12) months, beginning within three (3) months after
the effective date of the registration statement, which earnings statement shall
satisfy the provisions of Section 11(a) of the Securities Act and Rule 158 of
the Commission promulgated thereunder (or any successor rule or regulation
hereafter adopted by the Commission).

          (j) The Company will use its best efforts to cause all such
Registrable Securities to be listed on each securities exchange on which similar
securities issued by the Company are then listed.

          The Company may require, as a condition precedent to the obligations
of the Company under the Agreement, each Selling Holder of Registrable
Securities to promptly furnish in writing to the Company such information
regarding such selling Selling Holder, the Registrable Securities held by it and
the intended method of distribution of the Registrable Securities as the Company
may from time to time reasonably request and such other information as may be
legally required in connection with such registration.

          Each Selling Holder agrees that, upon receipt of any notice from the
Company of the happening of any event of the kind described in Section 2.4(e)
hereof, such Selling Holder will forthwith discontinue disposition of
Registrable Securities pursuant to the registration statement and prospectus
covering such Registrable Securities until such Selling Holder's receipt of the
copies of the supplemented or amended prospectus contemplated by Section 2.4(e)
hereof, and, if so directed by the Company, such Selling Holder will deliver to
the Company all copies, other than permanent file copies then in such Selling
Holder's possession, of the most recent prospectus covering such Registrable
Securities at the time of receipt of such notice.  Each Selling Holder of
Registrable Securities agrees that it will immediately notify the Company at any
time when a prospectus relating to the registration of such Registrable
securities is required to be delivered under the Securities Act of the happening
of an event as a result of which information previously furnished by such
Selling Holder to the Company in writing for inclusion

                                       7
<PAGE>

in such prospectus contains an untrue statement of a material fact or omits to
state any material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances in which they were made, not
misleadinw. In the event the Company shall give such notice, the Company shall
extend the period during which such registration statement shall be maintained
effective (including the period referred to in Section 2.4ha) hereof) by the
number of days during the period from and including the date of the giving of
notice pursuant to Section 2.4(e) hereof to the date when the Company shall make
available to the Selling Holders of Registrable Securities covered by such
registration statement a prospectus supplemented or amended to conform with the
requirements of Section 2.4(e) hereof.

          SECTION 2.5.  Registration Expenses.  In connection with any
                        ---------------------
registration statement required to be filed hereunder, the Company shall pay the
following registration expenses incurred in connection with the registration
hereunder (the "Registration Expenses"): (i) all registration and filing fees,
(ii) fees and expenses of compliance with securities or blue sky laws (including
reasonable fees and disbursements of counsel in connection with blue sky
qualifications of the Registrable Securities), (iii) printing expenses, hiv)
internal expenses (including, without limitation, all salaries and expenses of
its officers and employees performing legal or accounting duties), (v) the fees
and expenses incurred in connection with the listing of the Registrable
Securities on each securities exchange on which similar securities issued by the
Company are then listed, (vi) reasonable fees and disbursements of counsel for
the company and customary fees and expenses for independent certified public
accountants retained by the Company (including the expenses of any comfort
letters or costs associated with the delivery by independent certified public
accountants of a comfort letter or comfort letters requested pursuant to Section
2.4(h) hereof), (vii) the reasonable fees and expenses of any special experts
retained by the Company in connection with such registration, and (viii)
reasonable fees and expenses of one counsel (who shall be reasonably acceptable
to the Company) for the Selling Holders.  The Company shall have no obligation
to pay any underwriting fees, discounts or commissions attributable to the sale
of Registrable Securities, or any out-of-pocket expenses of the Holders (or the
agents who manage their accounts) or any transfer taxes relating to the
registration or sale of the Registrable Securities.

          SECTION 2.6.  Indemnification by the Company.  The Company agrees to
                        ------------------------------
indemnify and hold harmless each Selling Holder of Registrable Securities, its
officers, directors and agents, and each Person, if any, who controls such
Selling Holder within the meaning of Section 15 of the Securities Act or Section
20 of the Exchange Act from and against any and all losses, claims, damages and
liabilities caused by any untrue statement or alleged untrue statement of a
material fact contained in any registration statement or prospectus relating to
the Registrable Securities (as amended or supplemented if the Company shall have
furnished any amendments or supplements thereto) or any preliminary prospectus,
or caused by any omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein, in
light of the circumstances in which they were made, not misleading, except
insofar as such losses, claims, damages or liabilities are caused by any such
untrue statement or omission or alleged untrue statement or omission based upon
information furnished in writing to the Company by such Selling Holder or on
such Selling Holder's behalf expressly for inclusion therein.  The Company also
agrees to indemnify any Underwriters of the

                                       8
<PAGE>

Registrable Securities, their officers and directors and each Person who
controls such Underwriters within the meaning of Section 15 of the Securities
Act or Section 20 of the Exchange Act on substantially the same basis as that of
the indemnification of the Selling Holders provided in this Section 2.6,
provided that the foregoing indemnity with respect to any preliminary prospectus
--------
shall not inure to the benefit of any Underwriter of the Registrable Securities
from whom the person asserting any such losses, claims, damages or liabilities
purchased the Registrable Securities which are the subject thereof if such
person did not receive a copy of the prospectus (or the prospectus as
supplemented) at or prior to the confirmation of the sale of such Registrable
Securities to such person in any case where such delivery is required by the
Securities Act and the untrue statement or omission of a material fact contained
in such preliminary prospectus was corrected in the prospectus (or the
prospectus as supplemented).

          SECTION 2.7.  Indemnification by Holders of Registrable Securities.
                        ----------------------------------------------------
Each Selling Holder agrees, severally but not jointly, to indemnify and hold
harmless the Company, its officers, directors and agents and each Person, if
any, who controls the Company within the meaning of either Section 15 of the
Securities Act or Section 20 of the Exchange Act to the same extent as the
foregoing indemnity from the Company to such Selling Holder, but only with
respect to information relating to such Selling Holder furnished in writing by
such Selling Holder or on such Selling Holder's behalf expressly for use in any
registration statement or prospectus relating to the Registrable Securities, or
any amendment or supplement thereto, or any preliminary prospectus.  In case any
action or proceeding shall be brought against the Company or its officers,
directors or agents or any such controlling person, in respect of which
indemnity may be sought against such Selling Holder, such Selling Holder shall
have the rights and duties given to the Company, and the Company or its
officers, directors or agents or such controlling person shall have the rights
and duties given to such Selling Holder, by Section 2.6 hereof.  Each Selling
Holder also agrees to indemnify and hold harmless Underwriters of the
Registrable Securities, their officers and directors and each Person who
controls such Underwriters within the meaning of Section 15 of the Securities
Act or Section 20 of the Exchange Act on substantially the same basis as that of
the indemnification of the Company provided in this Section 2.7.

          SECTION 2.8.  Conduct of Indemnification Proceedings.  In case any
                        --------------------------------------
proceeding (including any governmental investigation) shall be instituted
involving any person in respect of which indemnity may be sought pursuant to
Sections 2.6 or 2.7 hereof, such person (an "Indemnified Party") shall promptly
notify the person against whom such indemnity may be sought (an "Indemnifying
Party") in writing and the Indemnifying Party shall assume the defense thereof,
including the employment of counsel reasonably satisfactory to such Indemnified
Party, and shall assume the payment of all fees and expenses.  In any such
proceeding, any Indemnified Party shall have the right to retain its own
counsel, but the fees and expenses of such counsel shall be at the expense of
such Indemnified Party unless (i) the Indemnifying Party and the Indemnified
Party shall have mutually agreed to the retention of such counsel or (ii) the
named parties to any such proceeding (including any impleaded parties) include
both the Indemnified Party and the Indemnifying Party and representation of both
parties by the same counsel would be inappropriate due to actual or potential
differing interests between them.  It is understood that the Indemnifying Party
shall not, in connection with any proceeding or related proceedings in the

                                       9
<PAGE>

same jurisdiction, be liable for the reasonable fees and expenses of more than
one separate firm of attorneys (in addition to any local counsel) at any time
for all such Indemnified Parties, and that all such fees and expenses shall be
reimbursed as they are incurred. In the case of any such separate firm for the
Indemnified Parties, such firm shall be designated in writing by (i) in the case
of Persons indemnified pursuant to Section 2.6 hereof, by the Selling Holders
which owned a majority of the Registrable Securities sold under the applicable
registration statement and (ii) in the case of Persons indemnified pursuant to
Section 2.7 hereof, the Company. The Indemnifying Party shall not be liable for
any settlement of any proceeding effected without its written consent, but if
settled with such consent, or if there be a final judgment for the plaintiff,
the Indemnifying Party shall indemnify and hold harmless such Indemnified
Parties from and against any loss or liability (to the extent stated above) by
reason of such settlement or judgment. Notwithstanding the foregoing sentence,
if at any time an Indemnified Party shall have requested an Indemnifying Party
to reimburse the Indemnified Party for fees and expenses of counsel as
contemplated by the third sentence of this paragraph, the Indemnifying Party
agrees that it shall be liable for any settlement of any proceeding effected
without its written consent if (i) such settlement is entered into more than
thirty (30) Business Days after receipt by such Indemnifying Party of the
aforesaid request and (ii) such Indemnifying Party shall not have reimbursed the
Indemnified Party in accordance with such request prior to the date of such
settlement. No Indemnifying Party shall, without the prior written consent of
the Indemnified Party, effect any settlement of any pending or threatened
proceeding in which any Indemnified Party is or could have been a party and
indemnity could have been sought hereunder by such Indemnified Party, unless
such settlement includes an unconditional release of such Indemnified Party from
all liability arising out of such proceeding.

          SECTION 2.9.  Contribution.  If the indemnification provided for in
                        ------------
Sections 2.6 or 2.7 hereof is unavailable to an Indemnified Party or
insufficient in respect of any losses, claims, damages or liabilities referred
to therein, then each such Indemnifying Party, in lieu of indemnifying such
Indemnified Party, shall contribute to the amount paid or payable by such
Indemnified Party as a result of such losses, claims, damages or liabilities (i)
as between the Company and the Selling Holders on the one hand and the
Underwriters on the other, in such proportion as is appropriate to reflect the
relative benefits received by the Company and the Selling Holders on the one
hand and the Underwriters on the other from the offering of the securities, or
if such allocation is not permitted by applicable law, in such proportion as is
appropriate to reflect not only the relative benefits but also the relative
fault of the Company and the Selling Holders on the one hand and of the
Underwriters on the other in connection with the statements or omissions which
resulted in such losses, claims, damages or liabilities, as well as any other
relevant equitable considerations and (ii) as between the Company on the one
hand and each Selling Holder on the other, in such proportion as is appropriate
to reflect the relative fault of the Company and of each Selling Holder in
connection with such statements or omissions which resulted in such losses,
claims, damages or liabilities, as well as any other relevant equitable
considerations.  The relative benefits received by the Company and the Selling
Holders on the one hand and the Underwriters on the other shall be deemed to be
in the same proportion as the total proceeds from the offering (net of
underwriting discounts and commissions but before deducting expenses) received
by the Company and the Selling Holders bear to the total underwriting discounts
and commissions received by the Underwriters, in each case as set forth

                                       10
<PAGE>

in the table on the cover page of the prospectus. The relative fault of the
Company and the Selling Holders on the one hand and of the Underwriters on the
other shall be determined by reference to, among other things, whether the
untrue or alleged untrue statement of a material fact or the omission or alleged
omission to state a material fact relates to information supplied by the Company
and the Selling Holders or by the Underwriters. The relative fault of the
Company on the one hand and of each Selling Holder on the other shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to information supplied by the Company or such Selling
Holder, and the Company's and the Selling Holder's relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or
omission.

          The Company and the Selling Holders agree that it would not be just
and equitable if contribution pursuant to this Section 2.9 were determined by
pro rata allocation (even if the Underwriters were treated as one entity for
such purpose) or by any other method of allocation which does not take account
of the equitable considerations referred to in the immediately preceding
paragraph.  The amount paid or payable by an Indemnified Party as a result of
the losses, claims, damages or liabilities referred to in Sections 2.6 and 2.7
hereof shall be deemed to include, subject to the limitations set forth above,
any legal or other expenses reasonably incurred by such Indemnified Party in
connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this Section 2.9, no Underwriter shall be
required to contribute any amount in excess of the amount by which the total
price at which the securities underwritten by it and distributed to the public
were offered to the public exceeds the amount of any damages which such
Underwriter has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission, and no Selling Holder
shall be required to contribute any amount in excess of the amount by which the
total price at which the securities of such Selling Holder were offered to the
public exceeds the amount of any damages which such Selling Holder has otherwise
been required to pay by reason of such untrue or alleged untrue statement or
omission or alleged omission.  No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation.  The Selling Holder's obligations to contribute pursuant to
this Section 2.9 are several in the proportion that the proceeds of the offering
received by such Selling Holder bears to the total proceeds of the offering
received by all the Selling Holders and not joint.

          SECTION 2.10.  Participation in Underwritten Registrations.  No Person
                         -------------------------------------------
may participate in any underwritten registration hereunder unless such Person
(a) agrees to sell such Person's securities on the basis provided in any
underwriting arrangements approved by the Persons entitled hereunder to approve
such arrangements and (b) completes and executes all questionnaires, powers of
attorney, indemnities, underwriting agreements and other documents in customary
form and reasonably required under the terms of such underwriting arrangements
and these registration rights provided for in this Article II.

          SECTION 2.11.  Rule 144.  The Company covenants that it will file any
                         --------
reports required to be filed by it under the Securities Act and the Exchange Act
and that it will take such

                                       11
<PAGE>

further action as any Holder may reasonably request, all to the extent required
from time to time to enable Holders to sell Registrable Securities without
registration under the Securities Act within the limitation of the exemptions
provided by (a) Rule 144 under the Securities Act, as such Rule may be amended
from time to time, or (b) any similar rule or regulation hereafter adopted by
the Commission. Upon the request of any Holder, the Company will deliver to such
Holder a written statement as to whether it has complied with such requirements.

          SECTION 2.12.  Holdback Agreements.
                         -------------------

          (a) Restrictions on Public Sale by the Holder of Registrable
              --------------------------------------------------------
Securities.  To the extent not inconsistent with applicable law, each Holder
----------
whose securities are included in a registration statement agrees, upon receipt
of prior written notice from the Company received not later than 17 days prior
to the effective date of such registration statement, not to effect any sale or
distribution of the issue being registered or a similar security of the Company,
or any securities convertible into or exchangeable or exercisable for such
securities, including a sale pursuant to Rule 144 under the Securities act,
during the q4 days prior to, and during the 90-day period beginning on, the
effective date of such registration statement (except as part of such
registration), if and to the extent requested in writing by the Company in the
case of a non-underwritten public offering or if and to the extent requested in
writing by the managing Underwriter or Underwriters in the case of an
underwritten public offering.

          (b) If the Company determines in its good faith judgment that the
filing of the Shelf Registration Statement under Section 2.1 hereof or the use
of any related prospectus would require the disclosure of non-public material
information that the Company has a bona fide business purpose for preserving as
confidential or the disclosure of which would impede the Company's ability to
consummate a material transaction, and that the Company is not otherwise
required by applicable securities laws or regulations to disclose, upon written
notice of such determination by the Company, the rights of the Holders to
offer, sell or distribute any Registrable Securities pursuant to the Shelf
Registration Statement or to require the Company to take action with respect to
the registration or sale of any Registrable Securities pursuant to the Shelf
Registration Statement shall be suspended until the earlier of (i) the date upon
which the Company notifies the Holders in writing that suspension of such rights
for the grounds set forth in this Section 2.q1(b) is no longer necessary
and (ii) 180 days.  The Company agrees to give such notice as promptly as
practicable following the date that such suspension of rights is no longer
necessary.

          (c) If all reports required to be filed by the Company pursuant to the
Exchange Act have not been filed by the required date without regard to any
extension, or if the consummation of any business combination by the Company has
occurred or is probable for purposes of Rule 3-05 or Article 11 of Regulation S-
X under the Act, upon written notice thereof by the Company to the Holders, the
rights of the Holders to offer, sell or distribute any Registrable Securities
pursuant to the Shelf Registration Statement or to require the Company to take
action with respect to the registration or sale of any Registrable Securities
pursuant to the Shelf Registration Statement shall be suspended until the date
on which the Company has filed such reports or obtained and filed the financial
information required by Rule 3-05 or Article 11

                                       12
<PAGE>

of Regulation S-X to be included or incorporated by reference, as applicable, in
the Shelf Registration Statement, and the Company shall notify the Holders as
promptly as practicable when such suspension is no longer required.

                                  ARTICLE III
                                 MISCELLANEOUS

          SECTION 3.1.  New York Stock Exchange Listing.  In the event that the
                        -------------------------------
Company shall issue any Common Stock in exchange for OP Units pursuant to
Section 8.6 of the Partnership Agreement, then in any such case the Company
agrees to cause any such shares of Common Stock to be listed on the New York
Stock Exchange prior to or concurrently with the issuance thereof by the
Company.

          SECTION 3.2.  Remedies.  In addition to being entitled to exercise all
                        --------
rights provided herein and granted by law, including recovery of damages, the
Holders shall be entitled to specific performance of the rights under this
Agreement.  The Company agrees that monetary damages would not be adequate
compensation for any loss incurred by reason of a breach by it of the provisions
of this Agreement and hereby agrees to waive the defense in any action for
specific performance that a remedy at law would be adequate.

          SECTION 3.3.  Amendments and Waivers.  The provisions of this
                        ----------------------
Agreement, including the provisions of this sentence, may not be amended,
modified or supplemented, and waivers or consents to departures from the
provisions hereof may not be given without the prior written consent of the
Company and the Holders or any such Holder's representative if any such Holder
is Incapacitated.  No failure or delay by any party to insist upon the strict
performance of any covenant, duty, agreement or condition of this Agreement or
to exercise any right or remedy consequent upon any breach thereof shall
constitute a waiver of any such breach or any other covenant, duty, agreement or
condition.

          SECTION 3.4.  Notices.  All notices and other communications in
                        -------
connection with this Agreement shall be made in writing by hand delivery,
registered first-class mail, telex, telecopier, or air courier guaranteeing
overnight delivery:

          (1) if to any Unit Holder, initially c/o Kilroy Realty Corporation,
2250 East Imperial Highway, El Segundo, California 90245 (Attention: President
and Chief Executive Officer), or to such other address and to such other Persons
as the Unit Holders may hereafter specify in writing; and

          (2) if to the Company, initially at 2250 East Imperial Highway, El
Segundo, California 90245 (Attention: President and Chief Executive Officer), or
to such other address as the Company may hereafter specify in writing.

          All such notices and communications shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; when received if
deposited in the mail, postage prepaid, if mailed; when answered back, if
telexed; when receipt acknowledged, if

                                       13
<PAGE>

telecopied; and on the next business day, if timely delivered to an air courier
guaranteeing overnight delivery.

          SECTION 3.5.  Successors and Assigns.  Except as expressly provided in
                        ----------------------
this Agreement, the rights and obligations of the Holders under this Agreement
shall not be assignable by any Holder to any Person that is not a Holder.  This
Agreement shall be binding upon the parties hereto and their respective
successors and assigns.

          SECTION 3.6.  Counterparts.  This Agreement may be executed in any
                        ------------
number of counterparts and by the parties hereto in separate counterparts, each
of which when so executed shall be deemed to be an original and all of which
taken together shall constitute one and the same agreement.  Each party shall
become bound by this Agreement immediately upon affixing its signature hereto.

          SECTION 3.7.  Governing Law.  This Agreement shall be governed by and
                        -------------
construed in accordance with the internal laws of the State of California
without regard to the choice of law provisions thereof.

          SECTION 3.8.  Severability.  In the event that any one or more of the
                        ------------
provisions contained herein, or the application thereof in any circumstance, is
held invalid, illegal or unenforceable, the validity, legality and
enforceability of any such provision in every other respect and of the remaining
provisions contained herein shall not be affected or impaired thereby.

          SECTION 3.9.  Entire Agreement.  This Agreement is intended by the
                        ----------------
parties as a final expression of their agreement and intended to be a complete
and exclusive statement of the agreement and understanding of the parties hereto
in respect of the subject matter contained herein.  There are no restrictions,
promises, warranties or undertakings, other than those set forth or referred to
herein with respect to the registration rights granted by the Company with
respect to the Registrable Securities.  This Agreement supersedes all prior
agreements and understandings between the parties with respect to such subject
matter.

          SECTION 3.10.  Headings.  The headings in this Agreement are for
                         --------
convenience of reference only and shall not limit or otherwise affect the
meaning hereof.

          SECTION 3.11.  No Third Party Beneficiaries.  Nothing express or
                         ----------------------------
implied herein is intended or shall be construed to confer upon any person or
entity, other than the parties hereto and their respective successors and
assigns, any rights, remedies or other benefits under or by reason of this
Agreement.

                            (Signature Page Follows)

                                       14
<PAGE>

          IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first written above.

                              KILROY REALTY CORPORATION,

                              a Maryland corporation

                    By:    /s/ Jeffrey C. Hawken
                           ----------------------------------------------------
                    Name:  Jeffrey C. Hawken
                           ----------------------------------------------------
                    Title: Executive Vice President and Chief Operating Officer
                           ----------------------------------------------------

                    By:    /s/ Richard E. Moran, Jr.
                           ----------------------------------------------------
                    Name:  Richard E. Moran, Jr.
                           ----------------------------------------------------
                   Title:  Executive Vice President and Chief Financial Officer
                           ----------------------------------------------------

                   KILROY REALTY, L.P., a Delaware limited
                   partnership

                   By: Kilroy Realty Corporation,
                   its general partner

                   By:    /s/ Jeffrey C. Hawken
                          ----------------------------------------------------
                   Name:  Jeffrey C. Hawken
                          ----------------------------------------------------
                   Title: Executive Vice President and Chief Operating Officer
                          ----------------------------------------------------

                   By:    /s/ Richard E. Moran, Jr.
                          ----------------------------------------------------
                   Name:  Richard E. Moran, Jr.
                          ----------------------------------------------------
                   Title: Executive Vice President and Chief Financial Officer
                          ----------------------------------------------------

                   Kilroy Airport Imperial Co., a California limited
                   partnership

                   By: The Kilroy Company, a California
                   corporation, its general partner

                   By:    /s/ John B. Kilroy, Jr.
                          -------------------------------
                   Name:  John B. Kilroy, Jr.
                          -------------------------------
                   Title: President
                          -------------------------------

                                       15

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00017-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00017-of-00352.parquet"}]]