City of Yes Housing Opportunity (2024-12-05) legalized accessory dwelling units citywide on single- and two-family R1-R5 lots. Up to 800 sq ft. Owner-occupancy required.
ADU
Ancillary Dwelling Unit
NYC Zoning Program
Ancillary Dwelling Unit (ADU)
Ancillary Dwelling Unit is a New York City zoning program known by the abbreviation ADU. City of Yes Housing Opportunity (2024-12-05) legalized accessory dwelling units citywide on single- and two-family R1-R5 lots. Up to 800 sq ft. Owner-occupancy required.
Quick Facts
- Abbreviation
- ADU
- Key sections
- 2
- Related programs
- 1
What does ADU do?
Which ZR sections govern ADU?
1 key sections cover this program.
- §23-71 — Predominantly Built-up AreasLast amended 2024-12-05
Frequently Asked
What is Ancillary Dwelling Unit (ADU)?
Ancillary Dwelling Unit (ADU) is a New York City zoning program. City of Yes Housing Opportunity (2024-12-05) legalized accessory dwelling units citywide on single- and two-family R1-R5 lots. Up to 800 sq ft. Owner-occupancy required.
Which Zoning Resolution sections govern ADU?
Ancillary Dwelling Unit is governed by §23-71, §23-92 of the New York City Zoning Resolution. Each section provides specific rules, eligibility, and limits.
How does ADU relate to other NYC zoning programs?
ADU interacts with QRS. Each related program has its own eligibility criteria, but they can stack in some cases — consult an attorney or city planner for project-specific guidance.
Related Programs
Building under ADU?
Ask MuniMind about eligibility, FAR bonuses, and recent cases.