Building Permits in Princeton, New Jersey
Part of Mercer County.
We have not yet verified rules published by Princeton itself. Below are the New Jersey rules that apply, and where to ask.
Where to apply
Permits in Princeton are issued by the city's building or planning department. If the city does not run its own permit office, Mercer County handles applications.
New Jersey statewide rules
State defaults apply everywhere in the state; cities and counties may add stricter local rules.
- Building code
- International Residential Code/2024, NJ ed (One- and Two-Family Dwelling Subcode, NJAC 5:23-3.21) source: nj.gov
- Issued by
- New Jersey Department of Community Affairs, Division of Codes and Standards (regulations promulgated by the Commissioner under the State Uniform Construction Code Act) source: nj.gov
Shed
- Exempt from a permit
- A construction permit for building work shall not be required for garden-type utility sheds and similar structures that are 200 square feet or less in area, 10 feet or less in height, and accessory to buildings of Group R-2, R-3, R-4, or R-5 and which do not contain a water, gas, oil, or sewer connection. A construction permit for electrical work shall be required, when applicable. source: nj.gov
- Size limit (sq ft)
- 200 source: nj.gov
- Height limit (ft)
- 10 source: nj.gov
Fence
- Height limit (ft)
- 6 source: nj.gov
- Exempt from a permit
- A permit shall not be required for fences six feet or less in height. This exception does not apply to barriers surrounding public or private swimming pools. source: nj.gov