The office-to-residential project at 100 Gold Street in New York's Financial District is set to be larger than expected. Mayor Zohran Mamdani and GFP Development recently announced that the public review process for the conversion project has been initiated and that it will now comprise 4,000 residential units, instead of the 3,700 units originally presented in December 2025.
According to the Mamdani administration, the project is expected to provide twice as many affordable units – a total of 1,000 – as have been created in Manhattan's Community Board 1 over the last decade. Brian Steinwurtzel, CEO and Principal of GFP Development, stated that this important project will replace an outdated office building in the heart of Lower Manhattan with a thoughtfully designed mixed-use and mixed-income development. This represents the largest increase in new, affordable housing in the region for decades.
Comprehensive Development and Social Infrastructure
The project is being carried out by GFP Development, a company that was spun off from GFP Real Estate earlier this year. In addition to housing, the company will also construct a new facility for the non-profit organisation Hamilton-Madison House, which provides services for older adults, as well as a 40,000-square-foot fitness centre for the community. Furthermore, equally extensive public space improvements are planned to enhance the neighbourhood.
The redevelopment of 100 Gold Street began prior to the Mamdani administration's term. Former Mayor Eric Adams had presented the plan in his State of the City address in January 2025. The current administration is now driving the project forward. In particular, the 'Land Inventory Fast Track Task Force', launched by Mayor Mamdani on his first day in office as part of the 'Block-by-Block' housing programme, could accelerate the process, as the development is taking place on city-owned land.
Needs-Based Housing and Community Spaces
Leila Bozorg, Deputy Mayor for Housing and Planning, highlighted that the redevelopment of 100 Gold represents a significant step towards creating the housing needed by New Yorkers. This includes permanently affordable, rent-stabilised apartments as well as new community spaces, which will be realised at no cost to the city. The initiative underscores the city's commitment to strengthening both housing provision and social infrastructure.
