EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of The Rouse Company LP (the “Company”) on Form 10-K for the period ended December 31, 2005 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John Bucksbaum, Chief Executive Officer of the Company, certify to the best of my knowledge after a review of the Report, and pursuant to 18 U.S.C. § 1350, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ John Bucksbaum

John Bucksbaum

Chief Executive Officer

April 18, 2006