450 Union sits on one of the most prominent sites along the Gowanus Canal, a former industrial corridor now being rezoned and rebuilt as a mixed-use neighborhood. Tankhouse's first rental project and the largest to date, it brings 158 homes and ground-floor retail to the canal's edge, alongside a public park. The units are sized efficiently, with ample natural light and cross-ventilation, and the facade is faceted to turn as many homes as possible toward the water.