Permits are decided by your city or county, sometimes by your state, and occasionally by a homeowners association on top of both. That means any article promising a definitive answer is guessing. What is consistent across the country is the shape of the rule, and that is enough to tell you whether you need to make a phone call.
The principle underneath almost every code
Permits generally attach to work that affects structure, life safety, or the utilities entering the building. That is why a deck needs one and painting the deck does not. Ask the question that way and you will be right most of the time.
| Usually needs a permit | Usually does not |
|---|---|
| Decks, porches, structural framing, removing a wall | Painting, wallpaper, trim, flooring over an existing subfloor |
| New electrical circuits, panel work, rewiring | Swapping a light fixture, a switch, or a receptacle like for like |
| Moving or adding plumbing, water heater replacement | Replacing a faucet, a toilet in the same place, a garbage disposal |
| HVAC replacement, new ductwork, gas lines | Filters, thermostats, cleaning |
| Roof replacement, most window and door openings | Small roof repairs, replacing glass in an existing frame |
| Fences over a certain height, sheds over a certain size, pools | Fence repair, small sheds, landscaping |
| Anything changing the footprint or the use of a room | Cabinets and countertops with no plumbing or electrical change |
The thresholds — fence heights, shed square footage, the dollar value above which a permit is required — are exactly the part that varies, and they vary a lot. That is what the phone call is for.
How to check, properly, in ten minutes
- Search for your city or county name plus "building department" or "permit portal". Use the official site. Third-party permit sites are frequently out of date and some are lead generators.
- Look for a residential permit guide or an exemption list. Most jurisdictions publish one, and the exemption list is usually the more useful document because it tells you what you can do freely.
- If it is ambiguous, ring them and describe the job in plain terms. Building departments answer this question constantly and are generally helpful. You do not need to give your address to ask a general question.
- Check the HOA separately. An association can require approval for things the city does not care about at all, and it can enforce that independently.
Ask one specific question of any contractor before work starts: "Does this need a permit, and are you pulling it?" Get the answer in writing. Somebody who says a permit is not needed for work on the left-hand column above has told you something important about how they operate.
Who should pull it
Generally the contractor, and this matters more than it sounds. A permit pulled in the contractor's name puts the responsibility for the work meeting code on them. A permit pulled in yours — sometimes suggested as a way to save money or move faster — makes you the responsible party, and if the work fails inspection or causes damage later, that distinction becomes the whole argument.
Treat "you pull the permit as the homeowner" as a request to explain why. Sometimes there is a legitimate reason. Often it means they cannot.
What happens with unpermitted work
Usually nothing, for years, and then it surfaces at the worst moment:
- Selling. Unpermitted work shows up in inspection and appraisal, buyers ask for it to be resolved, and finished square footage without a permit may not count towards the valuation at all.
- Insurance. A claim arising from unpermitted work can be denied. This is the version that actually costs people money.
- Enforcement. Fines, and in some jurisdictions an order to open the work back up for inspection, or to remove it.
Retroactive permits exist in many places, generally at a higher fee and requiring inspection, which sometimes means exposing finished work. Unpleasant, and far cheaper than discovering it during a sale.
Buying a house with unpermitted work
Common, and not automatically a reason to walk away. Find out what the work was, whether it is safe, and what your jurisdiction requires to regularise it — then price it into the offer. The two categories to take seriously are anything electrical and anything structural, because those are the ones where "it has been fine for ten years" is not evidence of much.
What we can and cannot tell you
We do not verify licences, permits or insurance for anyone on this platform, and we will not imply otherwise. If somebody tells you they are licensed, that is their statement rather than ours — and it takes about two minutes to check it directly with your state's licensing board, which is worth doing on any job where a permit is involved at all.
Frequently asked questions
What home projects usually need a permit?
Work that affects structure, life safety, or the utilities entering the building: decks and framing, new electrical circuits or panel work, moving or adding plumbing, water heater and HVAC replacement, roof replacement, and most changes to a room’s footprint or use. Thresholds for fences, sheds and dollar values vary by jurisdiction, which is what the phone call is for.
What does not need a permit?
Generally cosmetic and like-for-like work: painting, trim, flooring over an existing subfloor, swapping a light fixture or a faucet, replacing a toilet in the same location, thermostats and filters, cabinets with no plumbing or electrical change, and most landscaping and fence repair.
Who should pull the permit, me or the contractor?
The contractor, in almost all cases. A permit in their name puts responsibility for the work meeting code on them. If it is in your name, you are the responsible party if it fails inspection or causes damage later. Treat a suggestion that you pull it yourself as something to ask about.
What happens if work was done without a permit?
Often nothing until you sell or make a claim. Unpermitted work surfaces in inspection and appraisal, unpermitted finished space may not count towards valuation, and an insurance claim arising from it can be denied. Many jurisdictions allow a retroactive permit at a higher fee, usually with inspection.
How do I find out my local permit rules?
Search your city or county name plus "building department" or "permit portal", and use the official site rather than a third-party one. Look for the residential exemption list, which is usually more useful than the permit list. If it is ambiguous, call and describe the job — they answer this all day. Check your HOA separately.