Plus One ADU Program

Plus One ADU Program is sponsored by New York State Homes and Community Renewal. New York's Plus One ADU Program provides financial assistance to homeowners for the creation of Accessory Dwelling Units, aiming to increase affordable housing options.

Housing Preservation & Development 311 Search all NYC. gov websites Plus One Ancillary Dwelling Unit (ADU) Program An Ancillary Dwelling Unit (ADU), sometimes called an Accessory Dwelling Unit, is a small, independent residential unit located on the same lot as a primary home. ADUs can provide housing for family members or tenants.

They can also serve as an added source of income for homeowners by renting the unit. ADUs can be created within an existing home or built as a separate structure on the property. Common types of ADUs include: The Plus One ADU Program provides financial and technical support to eligible New York City homeowners interested in building or converting an ADU on their property through low or no-interest loans or construction financing grants.

Funding will be provided by the New York State Homes and Community Renewal and the NYC Department of Housing Preservation & Development. The program will be administered in partnership with Restored Homes HDFC, which supports homeowners through the entire process—from pre-development through to construction completion and initial unit lease-up.

ADUs financed through the program will become safe, habitable, and potentially rent-restricted units that will help homeowners generate additional income and support long-term homeowner and neighborhood stability. Restored Homes Housing Development Fund Corporation (Restored Homes) serves as the program administrator and development partner for the Plus One ADU Program.

Restored Homes will: Provide application support to homeowners Coordinate with design professionals, engineers, and contractors Provide technical guidance throughout pre-development and construction Connect homeowners to financial and landlord counseling services, as needed May earn up to 165% AMI. Preference will be given to homeowners earning 120% AMI or below See AMI chart: Area Median Income - HPD (nyc.

gov) for additional details Must be current on any existing mortgages Have no outstanding municipal arrears or be in an active payment plan Detached or semi-detached or semi-attached homes with 1-2 existing units Homes that allow for the addition of an existing dwelling under the existing building and zoning code Homes must not require any major repairs other than those that are essential to the ADU construction scope Eligible homes must either be free of housing or building code violations prior to receiving program financing, unless the violations are directly related to the ADU, or the owner must agree to address all existing violations prior to ADU construction completion Homes must be located outside of the Special Coastal Risk District according to FEMA’s Flood Zone Designation For basement conversions, the applicable ADU space must meet ceiling height requirements prior to conversion and must be located outside of the 2050 Stormwater Flood area as well as the 2080 100-year coastal flood zone Attached structures (ex.

attached garages) Detached existing structures (ex. detached garages or sheds) Newly constructed detached structures On November 21, 2023, the Plus One ADU Program launched in its pilot phase, inviting homeowners to express interest through a survey. The survey closed on February 13, 2024, and eligible homeowners from that pool were invited to apply for the pilot program.

On December 5, 2024, the New York City Council adopted City of Yes for Housing Opportunity, a major amendment to the city’s zoning text regulations. This zoning reform expanded opportunities for housing development in New York City and formally defined ADUs in the zoning code for the first time.

As a result of these changes, the Plus One ADU Program conducted a secondary review of the properties from the initial intake pool, allowing some homeowners who were previously ineligible under zoning to be reconsidered and deemed eligible to apply for the program. The program has also collaborated with other City agencies to launch ADU For You, a resource hub for New York City homeowners interested in building an ADU independently.

The website includes an ADU guidebook which explains the development process in detail, a library of DOB pre-approved plans, a site feasibility and cost estimating tool. Participating in the Program As of June 12, 2026, Intake for the Plus One ADU Program is closed. We’ve received thousands of responses to the Intake Survey, and will be analyzing sites for eligibility over the next several months.

If you responded to the Plus One ADU Intake survey and you do not hear from us right away, it is because your property is still pending an eligibility determination. If you are found to be Eligible you will receive an email from our program administration partner, Restored Homes HDFC , with the full program application.

If you are found to be Ineligible , you will receive an email from HPD explaining the reasons for your property’s ineligibility for the program. Beware of Unofficial Outreach & Resources We are aware that illegitimate entities are offering false opportunities to apply for the Plus One ADU Program. These may be scams!

Please note that the Plus One ADU Program will never charge you money for an eligibility analysis or program guidance. Any service providers who do, are not affiliated with the program. While the Plus One ADU team continues to work through the submissions from our most recent intake period, we have opened the Plus One ADU Mailing List.

By submitting your information to the mailing list you will be among the first to know about program updates. Please continue to monitor your email for correspondence from the program. You may submit your information for the mailing list here .

NYC Plus One ADU Program Frequently Asked Questions (FAQ) Plus One ADU Flyer in Bangla Plus One ADU Flyer in Chinese Plus One ADU Flyer in Spanish ADU for You: New York City's Ancillary Dwelling Unit (ADU) Resource Page Homeownership Opportunities & Preservation 100 Gold Street, Room 9S-11