Another piece of the new Gowanus skyline clicked into place Monday as construction topped out at 579 Sackett Street, an 11-story residential building at the corner of Third Avenue and Sackett Street. Crews were busy forming the final floors while scaffolding and a crane hovered over the site, a clear sign that the reinforced concrete superstructure has hit its full height. Once finished, the project is set to bring 64 rental units and ground-floor retail to a corridor that seems to get a new building every time you blink.
According to New York YIMBY, the building is designed by Kao Hwa Lee Architects and developed by Hershy Silberstein of BlueSky Developers. The 110-foot-tall, 46,943-square-foot structure will hold 64 rentals averaging about 681 square feet, along with 3,348 square feet of ground-floor retail. Renderings and recent site photos show interlocking volumes clad in contrasting brick, floor-to-ceiling punched windows, and stacks of glass-railed balconies lining Third Avenue.
Design and amenities
The property traded hands earlier in 2025 for $16.5 million, according to The Real Deal, with demolition permits filed before work on the new structure began. Plans call for a 32-bike cellar storage room, a fitness center, and outdoor recreation areas on both the first floor and the rooftop for residents. At street level, the retail space is being framed with expansive double-height windows meant to keep the sidewalk feeling active instead of closed off.
Neighborhood context and timeline
A Department of Buildings filing lists partners including JM Zoning alongside Kao Hwa Lee Architects, as reported by Commercial Observer. The project sits within the 2021 Gowanus rezoning area that has helped kick off a wave of new development across the neighborhood. The construction board on-site points to an anticipated April 2026 completion date, while New York YIMBY notes that work will likely run closer to the end of the year and that spokespeople did not immediately respond to requests for comment.
With the structural frame now standing, crews will pivot to facade installation, window fitting, and interior build-out, all of which will determine when leasing starts and the retail spaces open. The closest subway access will be the R train at the Union Street station, which is set to serve as the main transit link for future tenants. For now, the topping out is one more visible marker that Gowanus is rapidly reshaping its skyline and streets as new housing comes online.
