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§ 02
When a permit is required
Permit triggers and exempt work for Nassau County
Building permits required for all regulated construction in unincorporated areas; enforcement handled by applicable town building department.
Note: Exemptions determined by applicable town building department.
- Building code
- NYS Uniform Fire Prevention and Building Code; Energy Code
§ 03
Application process
Typical processing: Varies by town.
- 01 Determine which town jurisdiction applies to the property location (Hempstead, North Hempstead, or Oyster Bay).
- 02 Contact the applicable town building department for permit requirements and procedures.
- 03 Coordinate with Nassau County DPW if construction involves or is near county roads.
- 04 Submit application materials as directed by the town building department.
Typical processing time: Varies by town.
§ 04
Frequently asked
Common questions about unincorporated Nassau County permits
01 Do I need a building permit in unincorporated Nassau County, NY? ▸
Building permits required for all regulated construction in unincorporated areas; enforcement handled by applicable town building department.
02 How do I apply for a building permit in unincorporated Nassau County, NY? ▸
To apply for a building permit in unincorporated Nassau County, NY, follow these steps: 1. Determine which town jurisdiction applies to the property location (Hempstead, North Hempstead, or Oyster Bay). 2. Contact the applicable town building department for permit requirements and procedures. 3. Coordinate with Nassau County DPW if construction involves or is near county roads. 4. Submit application materials as directed by the town building department.
03 How long does it take to get a building permit in unincorporated Nassau County, NY? ▸
Building permit processing times in unincorporated Nassau County, NY typically run Varies by town.. Timelines can vary based on project complexity and current department workload.
last verified April 2026
entry id permits/new-york/nassau/unincorporated
Educational reference. Permit rules and fees change — confirm current requirements directly with Nassau County (Unincorporated Areas) before applying. Jaspector is not legal advice.