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 8 Building Departments locations in County, New Jersey.
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 Mercer County, New Jersey Building Departments
Mercer County Planning Department
Hopewell Planning And Zoning Department
Princeton Zoning
Hopewell Building Department
Princeton Township Building Department
Trenton Zoning
Lawrence Township Zoning
Borough Zoning
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 Middlesex, Monmouth, Somerset.