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The leading independent resource for Accessory Dwelling Units in New York City.
NYC ADU exists to make ADU information accessible to every New York City homeowner. We believe that Accessory Dwelling Units are one of the most promising tools for addressing the city's housing shortage while creating real financial value for property owners.
The ADU process in NYC can be overwhelming -- navigating zoning rules, permit requirements, financing options, and contractor selection is complex even for experienced homeowners. We built NYC ADU to simplify every step, from your first eligibility check to construction completion.
NYC ADU is an independent resource and is not affiliated with New York City government, the Department of Buildings, or HPD. The information we provide is for educational purposes and does not constitute legal, architectural, engineering, or financial advice. Always consult with licensed professionals for decisions specific to your property.
NYC ADU is built and maintained by a multidisciplinary team with deep expertise in New York City residential construction, zoning, and real estate.
Our team includes architects experienced in NYC residential design, familiar with DOB requirements and pre-approved ADU plans.
Deep knowledge of NYC zoning regulations, Local Laws 126 & 127, and the evolving ADU landscape across all five boroughs.
Specialists who have guided homeowners through every stage of the ADU process, from feasibility checks to construction completion.
Passionate about housing affordability in NYC and committed to making ADU information accessible to every homeowner.
Start with a free eligibility check or book a complimentary 15-minute assessment call.