Mamdani’s plan to turn 100 Gold Street into nearly 4,000 homes moves ahead

New York Mayor Zohran Mamdani’s administration is advancing a plan to replace the city office building at 100 Gold Street in Lower Manhattan with two towers holding nearly 4,000 homes, about 1,000 of them permanently affordable.

Ally Daily Editorial DeskSeptember 27, 2026, 03:48 PMUpdated: September 27, 2026, 05:58 PM

Mamdani’s plan to turn 100 Gold Street into nearly 4,000 homes moves ahead

New York City Mayor Zohran Mamdani’s administration is advancing a plan to redevelop the city-owned office building at 100 Gold Street in Lower Manhattan, near the Brooklyn Bridge, into nearly 4,000 new homes — about 300 more than the 3,700 first proposed. Around 1,000 of the apartments, at least a quarter of the total, will be permanently affordable and rent-stabilized.

The nine-story building, which mostly houses the Department of Housing Preservation and Development and several other city agencies, will be demolished and replaced with two towers. Renderings by CetraRuddy Architects show the taller tower appearing to rise about 1,000 feet. The project will also include a new older adult center replacing the one run by Hamilton-Madison House, about 40,000 square feet of public space and a publicly accessible fitness center.

Rendering of the planned older adult center at 100 Gold Street

“New York’s housing crisis demands that we build more — and that we use every tool we have to do it,” Mamdani said. Anthony Shorris, president of the city’s Economic Development Corporation, said the project shows “how public land can be leveraged to meet New York City’s most pressing needs,” while Brian Steinwurtzel, CEO of developer GFP Real Estate, said it will replace “an outdated office building in prime Lower Manhattan with a thoughtful mixed-use mixed-income development.”

The city says the project requires no city funding. It was shaped with input from Manhattan Community Board 1 and local officials; a scoping hearing for the environmental review is expected next month, and the plan is set to enter the city’s land use review process in 2027.