X0303 4 2011-05-24 0001043121 BOSTON PROPERTIES LTD PARTNERSHIP N/A 0001203367 LUSTIG MATTHEW J C/O LAZARD 30 ROCKEFELLER PLAZA NEW YORK NY 10020 1 0 0 0 LTIP Units 2011-05-24 4 A 0 823 .25 A Common OP Units 823 1125 D Issued as long term incentive compensation pursuant to Boston Properties, Inc.'s, the Issuer's general partner, equity based compensatory programs. Conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, each LTIP Unit may be converted, at the election of the holder, into a common unit. The 823 LTIP Units will vest on the earlier of (i) May 24, 2012 and (ii) the date of Boston Properties, Inc.'s 2012 annual meeting of stockholders. /s/ Kelli A. DiLuglio, as Attorney-in-Fact 2011-05-26