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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

NYC legalized ADUs in 2024. Learn who qualifies, what you can build, and how to get started under Local Laws 126 and 127.

By NYCADU TeamMarch 19, 2026

adu basics

nyc housing

city of yes

Plus One ADU Program: How to Get Up to $395,000 for Your ADU

The Plus One ADU program offers NYC homeowners up to $395K in grants and loans. Learn how to apply before the June 2026 deadline.

By NYCADU TeamMarch 19, 2026

financing

plus one

grants

How Much Does an ADU Cost in NYC? Full Breakdown

What does it cost to build an ADU in NYC? Full breakdown of hard costs, soft costs, and price ranges for basements and backyard units.

By NYCADU TeamMarch 19, 2026

costs

construction

budgeting

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Can You Build an ADU on Your Property? NYC Rules

Find out if your NYC property qualifies for an ADU. We break down zoning, lot size, flood zones, and historic district rules.

By NYCADU TeamMarch 19, 2026

eligibility

zoning

property

10 Pre-Approved ADU Plans You Can Build in NYC Right Now

Review all 10 HPD pre-approved ADU designs for NYC, from budget-friendly to premium, with specs, pricing, and how to choose.

By NYCADU TeamMarch 19, 2026

plans

design

hpd approved

Basement vs. Backyard ADU: Which Fits Your NYC Lot?

Basement conversion or backyard cottage? Compare costs, timelines, permits, and rental income for the two most common NYC ADU types.

By NYCADU TeamMarch 22, 2025

comparison

basement

backyard cottage

Is Your NYC Property Eligible for an ADU? The Complete 2026 Guide

Only 68,000 out of 565,000 NYC properties qualify for an ADU. Here's exactly how to determine if yours is one of them — building type, zoning, lot size, and every other requirement explained.

By NYCADU TeamMarch 22, 2025

eligibility

zoning

guide

ADU Investment Returns in NYC: The Numbers

What do NYC ADU investments actually return? Rental income, property value gains, and payback periods broken down by borough.

By NYCADU TeamMarch 21, 2025

investment

roi

financing

NYC ADU Permit Process: A Step-by-Step Guide

NYC ADU permits involve multiple agencies and can take 6-18 months. Follow this step-by-step guide to avoid delays and mistakes.

By NYCADU TeamMarch 20, 2025

permits

process

dob

Building an ADU in Queens: The Complete Guide

Queens leads NYC with 28,400 ADU-eligible properties. Larger lots and strong rental demand make it ideal for ADU construction.

By NYCADU TeamMarch 19, 2025

queens

borough guide

eligibility

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