Project Progress: Letter of Intent

24% Complete (success)

About One Post Office Square

Financial District, Boston, MA

Proposed modernization and expansion of the existing 41-story, 832,000-square-foot One Post Office Square tower located in the heart of Boston’s Financial District overlooking Norman Leventhal Park. The tower’s facade would be fully re-cladded with floor-to-ceiling glass panels, and corner infill areas and new outdoor spaces would be added along the facade.

A 10-story addition would be constructed atop the existing six-story garage at the building’s rear. A total of 140,000 square feet of new space would be added to One Post Office Square. Additionally, retail space at One Post Office Square would be expanded, and mechanical and electrical upgrades would be made. Construction of the proposed improvements to One Post Office Square would commence in the third quarter of 2018. The following are renderings of One Post Office Square:

One Post Office Square Renderings

Dollar Volume 250,000,000
Square Feet 972,000



Stories 41
Start Date Sep 30, 2018

Latest Updates

One post office square development renovation boston financial district office space tower new construction anchor line partners jll

Oct 08, 2017

New look and expansion proposed for One Post Office Square tower


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