The Department of Housing Preservation and Development (HPD) accepted Plus One ADU Program applications from November 2023 through February 13, 2024. The current application is closed, however you can express interest and sign up to receive updates.

An Accessory Dwelling Unit (ADU) is a small, independent residential dwelling unit located on the same lot as your home. The Plus One ADU program combined low- or no-interest capital loans and construction financing grants provided by the New York State Homes and Community Renewal (NYSHCR) for up to 15 eligible homeowners to build or convert ADUs on their property. 

 ADUs can be:  

  • Within the existing home, like a basement or attic apartment or conversion, or an in-law suite.  
  • A fully independent and detached structure, including basement apartments, attic conversions or in-law suites.

ADUs are designed to provide housing to family members or serve as an added source of income when rented as an additional unit.

Learn more about HPD's Plus One ADU Program.

Interested homeowners can provide their information to HPD to be contacted about future opportunities for funding and other ADU initiatives happening throughout the City. 

Submit a Plus One ADU Interest Form.

You can also contact HPD for more information by emailing

Download the Plus One ADU Flyer in:

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