This 320,000-sq.-ft. cast-in-place concrete office building in the Kendall Square area of Cambridge, Massachusetts is the headquarters of the Genzyme Corporation, a global biotechnology company. The project used extensive innovative sustainable building techniques and technologies, and is the first major building in an urban area to receive a platinum LEED rating from the U.S. Green Building Council. The 13-story building has a central atrium extending through the full height of the structure, a custom double façade, and innovative light enhancement features to distribute daylight within the interior working environment. Completed and occupied in 2003, the project received numerous design and sustainability awards, including the Harleston Parker Award from the Boston Society of Architects and a national AIA COTE Award for Top Ten Green Projects.