Mercer County Permits (New Jersey)


The Mercer County Clerk's Office maintains public records for a county, including vital documents like birth certificates and marriage licenses, as well as Mercer County permits. Clerks in Mercer County, New Jersey may be responsible for filing and issuing county permits, including building permits, land use permits, access permits, utility permits, and special event permits. These permits may be required for installing or repairing septic systems, demonstrating that a building meets fire codes and other building codes, demolition, repairs, renovations, and adjusting boundary lines. They may also be required for temporary events, reserving public property, or a number of land development uses. The Mercer County Clerk Office can provide information on how to apply for a Mercer County permit or how to check if a permit is valid, and their permit information and records are usually available online.

Appellate Clerk Trenton NJ 25 Market Street 08611 609-777-3086

Camden County Clerk Trenton NJ 25 Market Street 08611 609-421-6100

Hightstown Clerk Hightstown NJ 148 North Main Street, Ste 2 08520 609-490-5105

Hopewell Clerk Hopewell NJ 201 Washington Crossing Pennington Road 08560 609-737-1035

Hopewell Clerk Hopewell NJ 45 East Broad Street 08525 609-466-8628

Lawrence Township Clerk Lawrence NJ 357 Main Street 08311 856-447-3035

Mercer County Clerk Trenton NJ 209 South Broad Street 08608 609-989-6464

Princeton Clerk Princeton NJ 400 Witherspoon Street 08542 609-924-5704


A Mercer County Building Department creates and enforces building codes and zoning rules to ensure the construction of safe buildings. As part of their job, Building Departments in Mercer County, New Jersey issue and file building permits. These county permits may be required for renovations, demolition, repairs, land development, and installing or repairing septic systems. Mercer County permits can show if a building meets fire codes and other building codes, which may be called a certificate of zoning compliance. These Mercer County public records can be used to prove a building project has a valid permit or to look up building permit rules, apply for a permit, or see approved permits. Building Departments often provide online access to county permit information and records.

Borough Zoning Hightstown NJ 148 North Main Street, Ste 2 08520 609-490-5112

Hopewell Building Department Hopewell NJ 4 Columbia Ave 08525 609-466-2570

Hopewell Planning and Zoning Department Hopewell NJ 4 Columbia Avenue 08525 609-466-1492

Lawrence Township Zoning Lawrence NJ 2207 Lawrenceville Road 08648 609-844-7076

Mercer County Planning Department Trenton NJ 640 South Broad Street 08611 609-989-6545

Princeton Township Building Department Princeton NJ 400 Witherspoon Street 08542 609-921-7078

Princeton Zoning Princeton NJ 400 Witherspoon Street 08542 609-921-1359

Trenton Zoning Trenton NJ 319 East State Street 08608 609-989-3096


A Mercer County Town or City Hall provides municipal services for their community, which can include issuing and filing permits. These county permits may be required for a number of building projects, including renovations, demolitions, repairs, land development, and zoning compliance. In addition to building permits, Town and City Halls in Mercer County, New Jersey may also issue land use permits related to boundary lines, private roads, addresses, and water systems, as well as access permits, utility permits, and special event permits. These records can be used to prove that a project has a valid permit or to look up county permit rules, apply for a permit in Mercer County, or see approved permits. Town and City Halls typically provide online access to their county permit records.

Trenton City Hall Trenton NJ 319 East State Street 08608 609-989-3000

Washington Township City Hall Trenton NJ 1 Washington Blvd 08691 609-918-0002