Owners Boston Properties Inc. and Hines Design Architect Pelli Clarke Pelli Architects General Contractor Clark Construction Group and Hathaway Dinwiddie Construction Co. JV Engineers Magnusson Klemencic Associates (structural), BKF Engineers (civil) and WSP Group (MEP) Architect of Record Kendall Heaton Associates Consultants Morrison Hershfield, Arup, Environmental Building Solutions and Peter Walker & Partners