Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO RULE 13a – 14(a)

(SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002)

I, Kenneth F. Bernstein, certify that:

1. I have reviewed this annual report on Form 10-K/A of Acadia Realty Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

/s/ Kenneth F. Bernstein
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Kenneth F. Bernstein
President and Chief Executive Officer
May 12, 2006