EXHIBIT 23.3
CONSENT OF ERNST & YOUNG LLP
Consent of Independent Registered Public Accounting Firm
We consent to the reference to our firm under the caption “Experts” in the Registration Statement (Form S-3 No. 333- ) and the related Prospectus of Alexandria Real Estate Equities, Inc., for the registration of its common stock, preferred stock, rights, warrants and debt securities and to the incorporation by reference therein of our reports dated February 12, 2009, with respect to the consolidated financial statements and schedule of Alexandria Real Estate Equities, Inc. and Subsidiaries and the effectiveness of internal control over financial reporting of Alexandria Real Estate Equities, Inc. and Subsidiaries, included in its Annual Report (Form 10-K) for the year ended December 31, 2008, as filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP
Los Angeles, California
April 3, 2009