EXHIBIT 32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER, PRESIDENT AND CHIEF FINANCIAL OFFICER

Pursuant to 18 U.S.C. Section 1350, as created by Section 906 of the
Sarbanes-Oxley Act of 2002, each of the undersigned officers of AMB Property
Corporation (the "Company"), hereby certifies, to such officer's knowledge,
that:

(i) the accompanying Quarterly Report on Form 10-Q of the
Company for the quarterly period ended June 30, 2003 (the "Report")
fully complies with the requirements of Section 13(a) or Section 15(d),
as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii) the information contained in the Report fairly presents,
in all material respects, the financial condition and results of
operations of the Company.

A signed original of this written statement required by Section 906 has
been provided to the Company and will be retained by the Company and furnished
to the Securities and Exchange Commission or its staff upon request.


Dated: August 12, 2003
/s/ Hamid R. Moghadam
---------------------------
Hamid R. Moghadam
Chairman of the Board and
Chief Executive Officer


/s/ W. Blake Baird
---------------------------
W. Blake Baird
President and Director


/s/ Michael A. Coke
---------------------------
Michael A. Coke
Chief Financial Officer and
Executive Vice President


The foregoing certification is being furnished solely to accompany the
Report pursuant to 18 U.S.C. Section 1350, and is not being filed for purposes
of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to
be incorporated by reference into any filing of the Company, whether made before
or after the date hereof, regardless of any general incorporation language in
such filing.