Winthrop Center

The tower is built on the site of the defunct Winthrop Square Garage in the Financial District.

[6] In January 2018, the height was lowered again, to 691 feet (211 m),[7] and in May 2018 to 690.7 feet (210.5 m)[8][9] On October 18, 2018 Millennium Partners announced a groundbreaking date for October 24, 2018[10] and changed the name from “Winthrop Square Tower” to “Winthrop Center”.

This would break a state law that prohibits shadows on Boston Common or the Public Garden.

[13] Boston Mayor Marty Walsh has stated that he wishes to modify the state law prohibiting the building's construction, to allow the construction of the tower but to prevent future developments in the area.

[14] The planned height of the building was altered in September 2017, to comply with the Federal Aviation Administration's declaration that the building's proposed height was too tall and would, therefore, disrupt flights from Logan International Airport.