Do I need a building permit in North Carolina?
Pick the building and the job and answer a question or two. The answer comes from North Carolina's building permit law, G.S. 160D-1110, with the rule it rests on.
No building permit needed
Replacing roofing is exempt up to $40,000. The work still has to meet the State Building Code.
Rule: G.S. 160D-1110(c)
Zoning, HOA or historic district rules can still apply. Unsure? Ask your permit office.
When does a building permit expire?
G.S. 160D-1111: 6 months after it's issued if work hasn't started, or 12 months after work stops once it has.
Enter the dates to see when it expires.
The $40,000 rule
Most of the answers above come from one subsection of state law, G.S. 160D-1110(c): work costing $40,000 or less in a single-family home, farm building or commercial building needs no building permit, if it's done to the State Building Code and doesn't involve load-bearing structure, new or redesigned plumbing, new or replaced heating, cooling or wiring, materials the code doesn't allow, added roofing, or the Fire Code. Duplexes and apartment buildings aren't covered by it.
A building permit isn't the only approval a job can need. Zoning, driveway, stormwater, historic district and HOA rules are separate, and your city or county can tell you which apply. When it's close, ask your permit office; its answer is the one that counts.
Sources: G.S. 160D-1110 and G.S. 160D-1111, North Carolina General Assembly.
Permits: common questions
- What work doesn't need a building permit in North Carolina?
- Under G.S. 160D-1110(c), work costing $40,000 or less in a single-family home, farm building or commercial building needs no building permit, as long as it's done to code and doesn't add, repair or replace load-bearing structure; add or redesign plumbing; add, replace or redesign heating, air-conditioning or electrical wiring (like-for-like fixtures and devices are fine); use materials the code doesn't allow; add roofing (replacing a roof is fine); or involve the Fire Code.
- Do I need a permit to replace my roof in NC?
- Not for a replacement costing $40,000 or less on a single-family home, farm building or commercial building, unless rafters, trusses or other load-bearing framing are replaced. Adding roofing over an area that had none needs a permit.
- Do I need a permit to build a deck in NC?
- Yes. A new deck or porch adds load-bearing structure, which needs a permit at any cost. Replacing the decking, pickets, railings or stair treads of an existing deck doesn't, up to $40,000, unless joists, beams or posts are replaced.
- Do I need a permit to replace windows or doors in NC?
- Not for replacing windows, doors or exterior siding up to $40,000 on a single-family home, farm building or commercial building. Making an opening bigger changes the load-bearing wall and needs a permit.
- Do I need a permit to replace a water heater in NC?
- In a one- or two-family home, not if a licensed plumber (gas) or electrician (electric) replaces it like for like: same fuel, location and venting, the same or less capacity, and a leak test on the gas piping. A change in size, fuel or location needs a permit, as does any replacement in other buildings.
- Do I need a permit to replace an HVAC system in NC?
- Yes. Installing or replacing heating or air-conditioning equipment needs a permit at any cost. For a licensed contractor replacing one gas, propane or electric appliance, the local government can require only one permit, costing no more than one trade permit (G.S. 160D-1110(d)).
- How long is a building permit good for in North Carolina?
- Under G.S. 160D-1111, a permit expires 6 months after it's issued if the work hasn't started (a local ordinance can set a shorter time). Once work has started, it expires if the work stops for 12 months.
- What is the lien agent requirement on NC building permits?
- A building permit for work costing $40,000 or more must show the name and contact details of the lien agent the owner designated (G.S. 160D-1110(g)). It doesn't apply to improvements to a single-family home the owner lives in, or to an accessory building for it.