EXHIBIT 23.1
Published on March 30, 2007
Exhibit 23.1
Consent of Ernst & Young LLP, Independent Auditors
We consent to the incorporation by reference in the Registration Statement on Form S-8 (File No.
333-16837) pertaining to the 1996 Non-Qualified Employee Stock Purchase Plan of AvalonBay
Communities, Inc. of our report dated March 29, 2007, with respect to the financial statements of
the AvalonBay Communities, Inc. 1996 Non-Qualified Employee Stock Purchase Plan included in this
Annual Report (Form 11-K) for the year ended December 31, 2006.
/s/ Ernst & Young LLP
McLean, Virginia
March 29, 2007
March 29, 2007