Do I need a permit to replace my roof in New Jersey?
No, not for a detached one- or two-family home. The New Jersey Department of Community Affairs lists the repair or replacement of any amount of existing roof covering on those homes, up to a total replacement, as ordinary maintenance under N.J.A.C. 5:23-2.7. Ordinary maintenance needs no permit and gets no inspection.
What the state rule says
The Department of Community Affairs bulletin on ordinary maintenance, which took effect March 5, 2018, lists roofing under one- and two-family dwellings: the repair or replacement, including total replacement, of any amount of existing roof covering on detached one- or two-family dwellings.
The same bulletin says that ordinary maintenance is not a waiver from code compliance. All work is required to meet code requirements; there is simply no permit and no inspection.
When the rule does not apply
The roofing line in the bulletin is written for detached one- and two-family dwellings. The bulletin's separate list for buildings other than dwellings does not include roof replacement.
If your building is not a detached one- or two-family home, or the job involves framing such as rafters, ask your township's construction office before work starts.
Sources
Last updated 2026-09-29.