Everything you need to know about ADUs.
Guides, zoning deep-dives, and case notes on backyard ADUs — written by the architects and project managers who file the permits for a living.

City of Yes ADU Rules for NYC Backyard Units
NYC’s City of Yes zoning reform lets homeowners build detached backyard ADUs. Learn the eligibility rules, size limits, and zoning restrictions. Check if your property qualifies.
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Can You Airbnb Your Backyard ADU in NYC? What Short-Term Rental Laws Mean for ADU Owners
NYC

The Plus One ADU Program: Everything NYC Homeowners Need to Know
Everything NYC homeowners need to know about the Plus One ADU Program — eligibility, income limits, grant and loan terms, the application process, and the June 2026 deadline. The most comprehensive guide available.

What Happens to Your NYC Property Taxes When You Add an ADU?
Every NYC homeowner considering an ADU asks the same question: what happens to my property taxes? Here

Can Your Property Have an ADU? How Haven's Eligibility Tool Works
Can your property have a backyard ADU? Haven

NYC Homeowner’s Guide to Backyard ADUs (2026)
Everything NYC homeowners need to know about building a detached backyard ADU — eligibility, rules, design, financing, and timeline. Check if your property qualifies with Haven’s free eligibility tool.