101 South Street at Boynton Yards is a nine-story mixed-use building in Somerville, Massachusetts. The 270,000 SF structure consists of 241,500 SF of laboratory and office space with an accompanying 9,800 SF of retail on the first floor. In addition, there is a four-story below-grade parking garage with 250 vehicle spaces and 117 bike parking spaces. 101 South Street is a component of the larger planned Boynton Yards mixed-use, transit-oriented development.