Seaport Office Building

2021 Design Award Winner

Boston, MA

Structural Engineer
McNamara – Salvia Structural Engineers


Steel Joist Manufacturer
Canam Steel Corporation

Steel Fabricator
Cives Steel Co

121 Seaport is located at 121 Seaport Blvd in the South Boston neighborhood, MA, Boston, 02210. The Class A Office building was completed in 2018 and features a total of 400,000 sq ft. The building is a Green Building LEED Certified Platinum featuring 17 floors with retail space on the 1st and 2nd floors. The oval footprint of this office building gives a unique look. The building features 17 stories in South Boston. During excavation of the project a 19th century shipwreck was discovered. In composite joists, plumbing, electrical lines and ducts can pass through the joists. So, with the mechanical through the joists, the floor-to-floor height can be reduced. In the same way, shear connector on top of joist give possibility to have shallower joist, so it maximize ceiling heights.