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Expert guides, zoning updates, and everything you need to know about building an ADU in New York City.

NYC Just Legalized ADUs: What Every Homeowner Needs to Know

New York City has officially opened the door for homeowners to build accessory dwelling units. Here is everything you need to know about Local Laws 126 and 127, who qualifies, and how to get started.

By NYCADU TeamMarch 19, 2026

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