Building Codes Outside NYC: New York’s Uniform Code in the Suburbs
Westchester, Long Island and the Hudson Valley build to the NYS Uniform Code, enforced by each city, town and village. What the 2025 code changed.
By Seayora Editorial Team · Published · Facts checked · 3 min read
Short answer: Outside New York City, buildings are governed by the New York State Uniform Fire Prevention and Building Code, which the 2025 Uniform Code updated with effect from December 31, 2025. Every local government, meaning each city, village and town outside a village, must administer and enforce it, so a permit in Westchester, Nassau, Suffolk, Rockland, Putnam, Orange or Dutchess comes from that municipality’s building department. New York City writes and enforces its own construction codes instead.
Key takeaways
- The 2025 Uniform Code took effect on December 31, 2025, with new Residential, Building, Plumbing, Mechanical, Fuel Gas, Fire, Property Maintenance and Existing Building codes.
- Executive Law § 381 makes every local government responsible for enforcing the Uniform Code, under minimum standards in 19 NYCRR Part 1203.
- Permits, inspections and certificates of occupancy come from the city, town or village where the property sits, not from the county.
- Zoning is separate from the building code and is set locally by each municipality.
Which building code applies outside New York City?
The New York State Uniform Fire Prevention and Building Code, usually called the Uniform Code, which is published at 19 NYCRR Parts 1219 to 1229, together with the State Energy Conservation Construction Code at Part 1240. The State Fire Prevention and Building Code Council adopted the 2025 Uniform Code on July 25, 2025, and it took effect on December 31, 2025 (NYS Department of State: notice of adoption). Its books are the 2025 editions of:
- The Residential Code of New York State, for one- and two-family homes and townhouses.
- The Building Code of New York State, for everything else.
- The Plumbing, Mechanical and Fuel Gas Codes of New York State.
- The Fire Code, the Property Maintenance Code and the Existing Building Code of New York State.
New York City is different: it has its own construction codes in Title 28 of its Administrative Code, enforced by the city Department of Buildings. See when you need a DOB permit for the city’s rules.
Who enforces the Uniform Code?
Under Executive Law § 381, every local government must administer and enforce the Uniform Code. A county may enact a local law saying it will not enforce the codes, in which case the state can act instead. The Department of State sets the minimum features every local program must have in 19 NYCRR Part 1203, including building permits, construction and fire safety inspections, and certificates of occupancy.
In practice that means the building department of the city, village or town, outside any incorporated village, where the property sits. A house in an incorporated village in Nassau County gets its permit from the village, not the town around it; a house in an unincorporated hamlet in Suffolk gets it from the town.
Who inspects electrical work outside NYC?
The local building department decides. Many municipalities accept inspections from third-party electrical inspection agencies they have approved, and Westchester County licenses electrical inspectors through its Department of Consumer Protection (Westchester County). Ask the building department which inspectors it accepts before the walls are closed. Who may do the work is a separate licensing question; see electrician and plumber licenses outside NYC.
What should you check before starting a project?
- Find the municipality that issues permits for the address: city, village, or town outside a village.
- Confirm the zoning with that municipality, since the building code does not decide what use is allowed; see zoning variances in New York.
- Apply under the 2025 code. Applications filed on or after December 31, 2025 are reviewed under it.
- Use licensed trades where the municipality or county requires licenses, and schedule every required inspection before covering work.
- Get the certificate of occupancy or certificate of compliance at the end, and keep it.
Frequently asked questions
When did the 2025 New York State building code take effect?
The 2025 Uniform Code took effect on December 31, 2025. It was adopted by the State Fire Prevention and Building Code Council on July 25, 2025.
Does the New York State Uniform Code apply in New York City?
No. New York City has its own construction codes, in Title 28 of its Administrative Code, enforced by the city Department of Buildings.
Who issues building permits in Nassau and Suffolk counties?
The city, village or town where the property sits. A property inside an incorporated village gets its permit from the village; otherwise from the town.
Sources
- Notice of Adoption: rule amending and updating the Uniform Code (2025 Uniform Code), New York Department of State
- N.Y. Executive Law § 381, Responsibilities of local governments and state agencies, New York State Senate
- Code Outreach Program 2022-01: 19 NYCRR Part 1203, minimum standards for administration and enforcement, New York Department of State
- Department of Consumer Protection, Westchester County
How Seayora helps
Maintenance requests: Track repairs and the permits and inspections that go with them, building by building.
This article is general information, not legal, architectural or engineering advice. Zoning, building, electrical and plumbing rules are amended by local law and agency rule and differ from one city, town and village to the next, so confirm the current requirements with the building department and a licensed professional before you start work.
How we write and check these guides: editorial standards.
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