Framingham, Mass.
Genzyme Corp. is planning a 757,000-sf expansion of its existing campus in Framingham, Mass. Construction will begin between 2015 and 2018 on 400,000 sf of additional research space, with another 360,000 sf of office, manufacturing, and parking space breaking ground mid-decade. A $300 million, 55,000-sf drug production plant and a six-story, 185,000-sf quality control lab will open in July of 2011.