UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	May 26, 2010 4:00 P.M.

Form:	S-3
CIK: 0001037540 Company Name: BOSTON PROPERTIES INC File Number: 333-166735
CIK: 0001043121 Company Name: BOSTON PROPERTIES LTD PARTNERSHIP File Number: 333-166735-01