Called 9 DeKalb, the tower reached 721 feet (220 metres) last week, the JDS Development Group announced on Instagram.
View this post on Instagram
It has overtaken Kohn Pedersen Fox's 720-foot-high (219 metres) Brooklyn Point as the tallest building in Brooklyn.
When complete, 9 DeKalb will be 1,066 feet tall (325 metres) and become the first supertall in New York that's not in Manhattan. The term supertall skyscraper is applied to structures that are between 984 and 1,969 feet tall (300 to 600 metres).
SHoP Architects designed 9 DeKalb to echo the Brooklyn Dime Savings Bank next door, a 1906 landmark building designed by architects Mowbray and Uffinger that is being turned into retail space.
The skyscraper will have bronze, steel and stone facade elements to match its historic neighbour, which will be incorporated into its base.
JDS Development Group is developing 9 DeKalb. The tower will be mainly residential, with a mix of condos for sale and rental properties.
9 DeKalb is slated to complete in 2022.
Multiple supertall skyscrapers are currently under construction in New York, including another SHoP-designed tower backed by JDS Development Group.
Called 111 West 57th Street after its location, the 1,421 foot (433 metres) structure will have a height-to-width ratio of 24:1, making it a superskinny skyscraper as well as a supertall. It topped out in 2019 and is due to complete later this year.
The nearby Central Park Tower designed by Adrian Smith + Gordon Gill is also nearly complete. At 1,550 feet (472 metres) it will be the tallest residential building in the world.
The renderings are by SHoP, photography is courtesy of JDS.