ADU Learning Resources for Homeowners
Whether you're just starting to explore ADUs or ready to build, these resources will help you understand your options, navigate NYC's new zoning rules, and find financing.
New York City Resources
NYC Housing Preservation & Development – Plus One ADU Program
Official NYC pilot program offering financing + support for basement, attic, or backyard ADUs.
NYC Housing Preservation & Development – "ADU for You" Resource Page
NYC's dedicated ADU info hub covering eligibility, zoning, steps, and programs.
NYC Dept. of City Planning – City of Yes ADU Fact Sheet (PDF)
Summary of the City of Yes ADU zoning changes (allows 1 ADU up to 800 sq ft).
New York Housing Resource Center – Overview of ADUs (PDF)
Short, easy overview of ADU types, costs, planning, and NY funding programs.
Check Your Property
Want to see if your property qualifies for an ADU? Enter your address below:
Nationwide Resources
AARP Livable Communities – "All About ADUs"
The best national homeowner-friendly ADU guide collection including ABCs of ADUs, design guides, and case studies.
HUD/FHA – Financing Homes with ADUs (2023 Policy)
Explains how FHA now counts ADU rental income when qualifying for mortgages.
AccessoryDwellings.org
The most complete U.S. ADU education site with case studies, cost breakdowns, and zoning guides.