Information may be inaccurate or out of date. Always confirm permit requirements with the official city, county or state website before you start work. Read our disclaimer

Building Permits in Nassau County, New York

We have not yet verified rules published by Nassau County itself. Below are the New York rules that apply, and where to ask.

Where to apply

Nassau County issues building permits for unincorporated areas; cities inside the county usually run their own permit offices.

Permit guides