Project Progress: Under Official Review

About 401 Congress

Parcel A2, Seaport DistrictBoston, MA

On Parcel A2, the Project will include a new Class A office 18-story tower with two floors of publicly accessible programmed space that connect the existing elevated viaduct of World Trade Center Avenue with Congress Street (the “Great Hall”). This connection will include a sweeping staircase as well as an elevator that is accessible to the public 24/7. Rising above the Office Building’s public realm, the office floors will be highly flexible and efficient, taking full advantage of the Project Site’s location to provide a recognizable address and maximize views. 401 Congress will include 585,000 square feet of office space, 25,000 square feet of retail, and 35,000 square feet for public use.

On the Triangle Parcel, the Project will include a low-rise 30,000 square foot programmable building which will fill an existing void in the public realm of today’s South Boston Waterfront. The Great Hall and Triangle Parcel Building will be joined by a landscaped, occupied bridge structure that spans the I-90 off-ramp. In addition to the proposed improvements within the Project Site, the Project also includes offsite improvements to the public realm along World Trade Center Avenue.

The Project will target LEED Gold certifiability.

Construction Cost $425,000,000.00
Acquisition Cost $120,000,000.00
Square Feet 675,000


Stories 18
Height (feet) 250
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Latest Updates

Jul 29, 2019

401 Congress (Parcel A2) Officially Under Review


May 24, 2019

BGI Files Letter of Intent for Parcel A2 Project


Nov 28, 2018

Boston Global Investors plans to construct a 600,000-square-foot office building on a 1.1-acre parcel along...


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