UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 9, 2011

BOSTON PROPERTIES LIMITED PARTNERSHIP

(Exact name of registrant as specified in its charter)

800 Boylston Street, Suite 1900, Boston, Massachusetts 02199-8103

(Address of principal executive offices) (Zip Code)

(617) 236-3300

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

On August 9, 2011, Boston Properties, Inc. (the “Company”) and Boston Properties Limited Partnership, the Company’s operating partnership (the “Partnership”), filed a shelf registration statement on Form S-3 (File No. 333-176157) with the Securities and Exchange Commission (the “SEC”) to replace two existing shelf registration statements, one of which was scheduled to expire in November 2011. In connection with the filing of this new registration statement, the Company also filed two new prospectus supplements to continue offerings that had been covered by one of the registration statements being replaced. These prospectus supplements relate to the Company’s existing $600 million “at the market” equity offering program previously announced by the Company on June 2, 2011 and the issuance of up to 257,608 shares of common stock that may be issued from time to time if, and to the extent that, the holders of previously issued common units of limited partnership interest in the Partnership present such units for redemption.

On August 9, 2011, the Company also filed a new registration statement on Form S-3 (File No. 333-176158) with the SEC to replace the existing registration statement relating to its Dividend Reinvestment and Stock Purchase Plan, which registration statement was scheduled to expire in November 2011.

This Current Report shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.