Suffolk County building permits
Choose the city or area that permits your property to see its building department, portal, and project guides.
Town of Babylon
Building Department (Planning & Development)
Town of Brookhaven
Building Division (Planning & Environmental)
Town of Huntington
Building & Housing Division (Engineering Services Department)
Town of Islip
Planning and Development, Building Division (Permits Office)
Town of Smithtown
Building Department
Town of Southampton
Land Management, Building & Zoning Division
Can't find your city or town? Send us a note and we'll work on adding it.