Mercer County Planning Department in Trenton, New Jersey

Visiting a building department requires preparation — bring complete construction drawings, a site plan showing property boundaries and setbacks, and your contractor's license number if applicable. Mercer County Planning Department is located at 640 South Broad Street, Trenton, NJ. Over-the-counter permit applications are often processed same-day for simple projects, while complex commercial plans may require several weeks for plan review.

About Mercer County Planning Department

The Mercer County Planning Department, located in Trenton, New Jersey, ensures the construction of safe buildings, primarily through the development and enforcement of building codes. The Building Department establishes building codes and standards for the construction of buildings and addresses virtually all aspects of construction, including design requirements, building materials, parking, resistance to natural disasters, and trades such as electric and plumbing.

• Building permit applications, fees, and required documentation at Mercer County Planning Department
• Construction plan review status and approval timelines
• Scheduling required inspections for foundation, framing, electrical, plumbing, and final
• Zoning setbacks, height limits, and land use regulations in this jurisdiction