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EXHIBIT 32.2 Certification of Chief Financial Officer Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the
undersigned officer of Arden Realty, Inc., a Maryland corporation (the Company), hereby
certifies, to such officers knowledge, that:  (i)
    the accompanying Annual Report on Form 10-K of the Company for the fiscal year
ended December 31, 2004 (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. Dated:  March 10, 2005
    /s/ Richard S. DavisRichard S. DavisExecutive Vice President andChief Financial Officer
Arden Realty, Inc. 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. The foregoing certification is being furnished solely to accompany the Report pursuant to 18
U.S.C. § 1350 and in accordance with SEC Release No. 33-8238, 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.




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Certification of Chief Operating Officer Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the
undersigned officer of Arden Realty, Inc., a Maryland corporation (the Company), hereby
certifies, to such officers knowledge, that:  (i)
    the accompanying Annual Report on Form 10-K of the Company for the fiscal year
ended December 31, 2004 (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. Dated:  March 10, 2005
    /s/ Victor J. ColemanVictor J. ColemanPresident and Chief Operating Officer
Arden Realty, Inc. 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. The foregoing certification is being furnished solely to accompany the Report pursuant to 18
U.S.C. § 1350 and in accordance with SEC Release No. 33-8238, 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.




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Certification of Executive Vice President Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the
undersigned officer of Arden Realty, Inc., a Maryland corporation (the Company), hereby
certifies, to such officers knowledge, that:  (i)
    the accompanying Annual Report on Form 10-K of the Company for the fiscal year
ended December 31, 2004 (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. Dated:  March 10, 2005
    /s/ Robert C. PeddicordRobert C. PeddicordExecutive Vice President 
Leasingand Property Operations
Arden Realty, Inc. 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. The foregoing certification is being furnished solely to accompany the Report pursuant to 18
U.S.C. § 1350 and in accordance with SEC Release No. 33-8238, 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.




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Certification of General Counsel Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the
undersigned officer of Arden Realty, Inc., a Maryland corporation (the Company), hereby
certifies, to such officers knowledge, that:  (i)
    the accompanying Annual Report on Form 10-K of the Company for the fiscal year
ended December 31, 2004 (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. Dated:  March 10, 2005
    /s/ David A. SwartzDavid A. SwartzGeneral Counsel and Secretary
Arden Realty, Inc. 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. The foregoing certification is being furnished solely to accompany the Report pursuant to 18
U.S.C. § 1350 and in accordance with SEC Release No. 33-8238, 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.