Image courtesy of SGA

Developer Marcus Partners submitted plans for a new 742,000-square-foot office-lab complex on parcel X in Boston’s Raymond L. Flynn Marine Park as seafood processors currently located on the property prepare to relocate to the nearby Massport Marine Terminal.

The life science project is proposed on the Boston Economic Development and Industrial Corp.’s parcel X at 310 Northern Ave. and 5 Fid Kennedy Way, which Marcus Partners ground-leases from the city. In March 2021, the Boston Planning & Development Agency approved Stavis Seafoods’ relocation to a new 36,000-square seafood processing plant at the MMT property.

The parcel X project would include two buildings with office-lab space and approximately 22,000 square feet of amenity and retail space, according to the project notification form Marcus Partners submitted to city officials.

Marcus Partners said the lab project will use heat recovery pumps to reduce fossil fuel consumption and greenhouse gas emissions, and elevate a portion of the site, including the buildings’ first floors and some public spaces, to protect against future sea level rise.

Members of the project team include architects SGA, landscape architect Copley Wolff Design Group and sustainability consultant Thornton Tomasetti.

The project would continue the marine industrial park’s transition to tech and life science uses at properties including the Innovation and Design Building, Related Beal’s Innovation Square development and Marcus Partners’ own plans for another office-lab development at parcels O and P replacing the Au Bon Pain headquarters, which has already landed an anchor tenant two years before completion.