Parcel A2

Renderings of Seaport Office Tower Released

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

The development rights went to a team led by John Hynes’ Boston Global Investors, which agreed to pay Massport $120 million for a 99-year lease for the site and access to a nearly half-acre parcel across the street known internally as “the triangle.”

The street-level space will consist of a “grand hall” where eateries or nonprofits could set up. (The arch-like structure will minimize the need for columns in that ground-floor area.) The second and third floors will include two civic spaces, such as modest-sized performance venues. A new public connection would be made between the elevated World Trade Center Avenue and Congress Street below. And the developers would spruce up part of the viaduct — more like a park, less like a desolate bridge.

Then there’s that “triangle” parcel, bounded by highway ramps. A single-floor building devoted to civic uses — billed as an innovation and cultural center — would go there, topped with a rooftop park and connected to the office building parcel via a pedestrian bridge.

The 18-story main building would include 525,000 square feet of office space. BGI’s team, Massport says, expects to spend roughly $425 million on the entire project, including the public-realm improvements (and excluding the land costs). Construction could start in two years, and the building could open within four.

Rendering Below:

via Boston Globe