Development
Ailanthus Files Rezoning Plans for 400-Unit Residential Tower at 424 Hoyt Street in Gowanus
The developer seeks to build a 17-story mixed-use building featuring up to 120 affordable apartments and ground-floor commercial space in Brooklyn.
By OMI Desk ยท
The Brief
- Ailanthus filed a rezoning application with the New York City Department of City Planning for a Gowanus site.
- The proposed 17-story tower at 424 Hoyt Street would stand 175 feet tall and contain 400 apartments.
- The development plans call for 100 to 120 of the residential units to be designated as affordable housing.
- Ground-floor commercial space is integrated into the mixed-use design to provide neighborhood retail options.
The Brief - Ailanthus filed a rezoning application with the New York City Department of City Planning for a Gowanus site. - The proposed 17-story tower at 424 Hoyt Street would stand 175 feet tall and contain 400 apartments. - The development plans call for 100 to 120 of the residential units to be designated as affordable housing. - Ground-floor commercial space is integrated into the mixed-use design to provide neighborhood retail options.
Affordable and mixed-income housing developer Ailanthus has submitted a rezoning application to the New York City Department of City Planning to construct a 17-story mixed-use residential tower at 424 Hoyt Street in Gowanus, Brooklyn. If the city approves the application, the proposed 175-foot-tall building will bring 400 apartment units to the neighborhood. The development plans also include ground-floor retail space to serve the surrounding community.
What are the details of the proposed development?
The proposed development at 424 Hoyt Street is designed as a 17-story building reaching a height of 175 feet. Out of the 400 planned residential units, Ailanthus intends to set aside 100 to 120 apartments as affordable housing. The ground floor of the structure is slated to feature commercial space, though the specific types of retail tenants have not been determined.
Who is involved in the project?
This Brooklyn project is being spearheaded by Ailanthus, a real estate firm that specializes in affordable and mixed-income housing developments. The developer is working directly through the municipal rezoning process, which requires review and approval from the New York City Department of City Planning before any physical construction can begin on the site.
How does the project compare to standard zoning limits?
Because the developer is seeking a rezoning map amendment, the proposed building exceeds the baseline density and height limits currently allowed at the 424 Hoyt Street address. The application aims to align the property with broader residential and mixed-use guidelines in the Gowanus neighborhood.
| Project Metric | Proposed Specification | | :--- | :--- | | Total Height | 175 Feet | | Number of Stories | 17 | | Total Apartment Units | 400 | | Affordable Housing Units | 100 to 120 |
What remains unknown about the development?
Several key details regarding the 424 Hoyt Street project remain undisclosed in the initial filing. The developer has not yet shared an estimated timeline for when the rezoning review will be completed or when construction is expected to break ground. Additionally, the specific income levels required to qualify for the affordable housing units have not been detailed, and the total projected cost of the development remains unspecified.
FAQ ### Where can I find the original details of this filing? The initial details of this project were first reported by the Commercial Observer, based on rezoning applications submitted to the New York City Department of City Planning.
Is the 424 Hoyt Street project fully approved for construction? No, the project is currently in the proposal stage. Ailanthus must secure a rezoning map amendment from the city before construction can begin.
What portion of the building is dedicated to non-residential use? The ground floor of the 17-story building is designated for commercial use, though the exact square footage and specific retail concepts have not been finalized.
Sources - [Commercial Observer](https://commercialobserver.com/2026/09/ailanthus-400-apartments-424-hoyt-street-gowanus/)
Frequently Asked Questions
Where can I find the original details of this filing?
The initial details of this project were first reported by the Commercial Observer, based on rezoning applications submitted to the New York City Department of City Planning.
Is the 424 Hoyt Street project fully approved for construction?
No, the project is currently in the proposal stage. Ailanthus must secure a rezoning map amendment from the city before construction can begin.
What portion of the building is dedicated to non-residential use?
The ground floor of the 17-story building is designated for commercial use, though the exact square footage and specific retail concepts have not been finalized.