Boston Properties (BXP) 8-K/A Financial Statements and Exhibits

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (File Numbers 333-144859, 333-141257, 333-135190, 333-135189, 333-135187, 333-132871, 333-116556, 333-101255, 333-92402, 333-36142, 333-39114, 333-40618, 333-51024, 333-58694, 333-60219, 333-61799, 333-64902, 333-68379, 333-69375, 333-70765, 333-80513, 333-81355, 333-82498, 333-83859, 333-83861, 333-83863, 333-83867, 333-83869, 333-86585, and 333-91425) and on Form S-8 (File Numbers 333-52845, 333-54550, 333-70321, and 333-81824) of Boston Properties, Inc. of our report dated October 24, 2008 with respect to the Combined Statements of Revenue over Certain Operating Expenses of Two Grand Central Tower, 125 West 55^th Street and 540 Madison Avenue for the year ended December 31, 2007, which report is included in this Form 8-K/A of Boston Properties, Inc., dated as of August 12, 2008.

/s/ Pannell Kerr Forster, PC

Pannell Kerr Forster, PC

Boston, Massachusetts

October 24, 2008