Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the reference to our firm under the caption “Experts” in Amendment No. 1 to the Registration Statement (Form S-4 No. 333-175848) and the related Information Statement/Prospectus of Apartment Investment and Management Company related to the agreement and plan of merger with a wholly owned subsidiary of AIMCO Properties, L.P. and Angeles Partners XII, LP and to the incorporation by reference therein of our report dated February 24, 2011 (except for Note 13, as to which the date is September 2, 2011), with respect to the consolidated financial statements and schedule of Apartment Investment and Management Company included in its Current Report on Form 8-K dated September 2, 2011, and our report dated February 24, 2011 with respect to the effectiveness of internal control over financial reporting of Apartment Investment and Management Company, included in its Annual Report on Form 10-K for the year ended December 31, 2010, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Denver, Colorado
September 2, 2011