The county building department in County administers construction permits and enforces building codes for unincorporated areas and municipalities that contract county services rather than maintaining their own building divisions. There are 12 Building Departments locations in County, New York.
Property owners in unincorporated County should verify with the county building department whether their parcel falls under county or municipal jurisdiction before submitting permit applications, as this affects which office handles the review and which codes apply.
List of Nassau County, New York Building Departments
Hempstead Planning Department
North Hempstead Zoning
Oyster Bay Planning Department
Lawrence Building Department
Valley Stream Zoning
Freeport Building Department
Hempstead Building Department
North Hempstead Building Department
Manhasset Planning Department
Hempstead Planning Department
Oyster Bay Zoning
Nassau County Planning Department
Contractors and property owners in County should keep copies of all issued permits, approved plans, and inspection sign-off cards at the job site for the duration of construction. Final inspection requests must be scheduled in advance, and the certificate of occupancy is issued only after all required inspections pass.
You may also find Building Departments locations in neighboring counties including New York, Bronx, Westchester.