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New Jersey installation guides.

New Jersey’s Uniform Construction Code is enforced by state-licensed municipal construction officials. A construction permit is needed for mechanical and other work on existing buildings, and the town must act on a complete application within 20 business days.

NJ DCA: The New Jersey State Uniform Construction Code (PDF)
2 towns

Choose your city.

  1. Princeton

    Mercer County / Central Jersey

    Princeton’s adopted Historic Guidelines send removing, modifying or installing a chimney on a locally designated property to full Historic Preservation Commission review, while a chimney cap can be approved administratively.

    Read the guide
  2. Trenton

    Mercer County / Central Jersey

    Trenton’s code exempts interior work from historic review, but a visible change to a facade or roofline in its eight historic districts needs a certificate first.

    Read the guide

We add guides as local research is completed. Rules and business coverage vary by address. Explore national planning guides for areas not yet covered.