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Expert guides, zoning updates, and everything you need to know about building an ADU in New York City.
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.
The Plus One ADU program offers NYC homeowners up to $395,000 in grants and low-interest loans to build an accessory dwelling unit. Here is how to apply before the June 12, 2026 deadline.
A detailed breakdown of ADU construction costs in New York City, from basement conversions to backyard cottages, including soft costs, hard costs, and NYC-specific factors.
A complete walkthrough of every NYC ADU eligibility requirement, from zoning districts and building types to flood zones and historic districts. Find out if your property makes the cut.
A detailed review of all 10 HPD pre-approved ADU designs available in NYC, organized from most affordable to most expensive, with specs, features, and guidance on choosing the right plan.
The two most common ADU types in NYC have very different cost profiles, timelines, permit paths, and income potential. Here's a detailed side-by-side comparison to help you decide.
Rental income, property value increases, cap rates, payback periods — here's what NYC ADU investments actually return, broken down by borough, unit type, and financing strategy.
Getting an ADU permitted in NYC involves multiple agencies, specific filing requirements, and a timeline that can stretch from 6 to 18 months. Here's every step, every cost, and every pitfall to watch for.
Queens leads all five boroughs with roughly 28,400 ADU-eligible properties. Larger lots, more detached homes, and strong rental demand make it the epicenter of NYC's ADU opportunity.
Brooklyn has roughly 21,000 properties eligible for ADU construction. Here's everything you need to know about building one — from the neighborhoods with the most potential to what it'll actually cost you.
Check if your property is eligible in under 2 minutes.