Photo courtesy of DLJ Real Estate Capital Partners and Leggat McCall Properties

What: 101 South St. 

Where: Boynton Yards, Somerville 

Owner: DLJ Real Estate Capital Partners and Leggat McCall Properties 

Built: 2019-2022 

101 South St. is the first phase of the 1.8-million-square-foot Boynton Yards mixed-use life sciences development spanning seven acres in Somerville. 

Designed by architects Spagnolo Gisness & Associates and Hashim Sarkis Studios and built by Shawmut Design and Construction, the building includes 35,000-square-foot column-free floor plates. Cambridge-based Flagship Pioneering leased 280,000 square feet on eight floors to accommodate the growth of Tessera Therapeutics, Laronde, Cellarity and Generate Biomedicines.  

The nine-story, 289,000-square-foot building includes a ground floor conference center, arts and creative space and four levels of below-grade parking. Retail tenants Firefly and Portico Brewery will open this summer. 

They Said It: 

“As a vibrant hub for innovation, technology, and life science research, as well as an incubator for community and creative arts inspiration, 101 South St. represents the future of Somerville as we continue building what will become one of the region’s most prominent life sciences destinations at Boynton Yards.” 

-Kevin Sullivan, executive vice president, Shawmut Design and Construction