Many homes have changed over the years: a basement finished, a garage turned into living space, a porch enclosed, a bathroom added. Much of that work is done properly. Some is done without the permits and inspections local governments require. Unpermitted work is not always a deal-breaker, but it is something buyers should understand before they commit.
Why permits matter
Building permits exist so a local building department can review plans and inspect work for basic safety, such as proper wiring, structural support, fire separation and plumbing. When work is done without a permit, no one outside the person who did it has confirmed it meets those standards. That can create several issues for a buyer:
- Safety: hidden wiring, framing or venting problems may not be visible during a showing.
- Insurance: an insurer may raise questions about a claim involving unpermitted work. Ask your insurance agent how your carrier handles it.
- Valuation: appraisers and lenders may treat unpermitted living space differently from permitted space, which can affect how the home is valued.
- Future costs: a local government may require work to be permitted, corrected or even removed, sometimes when you later apply for a permit of your own.
Clues that work may not have been permitted
Pay attention when the living space described in a listing does not match public records, when a room has an unusual feel or finish, or when a garage, attic or basement has been converted. Other signs include extension cords used as permanent wiring, odd outlet placement, low ceilings in finished spaces, bedrooms without proper windows and plumbing that looks improvised. Your home inspector may flag workmanship that looks amateur, though an inspector generally cannot confirm permit status.
How to check a home’s permit history
Start by asking the seller, through your agent, what work has been done and whether it was permitted. Then check with the local building or permitting department, which may offer an online search or accept records requests. Compare what you find with the listing and the seller’s disclosure. In many states, sellers must disclose certain known issues, and disclosure forms may ask specifically about permits. Requirements vary, so ask your agent or a real estate attorney how it works where you are buying.
Your options if you find unpermitted work
If something was not permitted, you generally have a few paths, depending on your contract and timeline:
- Ask the seller to obtain permits after the fact, which may involve opening walls for inspection
- Negotiate a price reduction or credit that reflects the potential cost of correction
- Have a licensed contractor evaluate the work and explain what bringing it up to standard would involve
- Accept the home as it is, with a clear understanding of the risks
- Walk away within your inspection or due diligence period
The right choice depends on the scope of the work, how well it was done and how the local building department approaches retroactive permits. Gather the facts early, ask questions in writing and get professional advice when the stakes are high.
A Practical Investigation Plan
Finding out whether past work was permitted takes some legwork. A methodical approach keeps you from running out of time in your due diligence period.
- Make a list of every change you can see or suspect. Walk the home with the listing description in hand and note finished basements, converted garages, enclosed porches, added bathrooms, new decks and any room that seems newer than the rest of the house.
- Ask the seller for documentation. Through your agent, request permits, final inspection approvals, contractor invoices and warranties for each project.
- Search the building department records. Many jurisdictions allow searches by address. Note the permit number, the work described and whether a final inspection was completed.
- Compare square footage and room counts. Look at county property records alongside the listing. A gap can point to space that was added without permits or that is counted differently.
- Bring the list to your inspector. Ask them to pay close attention to the areas in question and to note any workmanship concerns.
- Get a specialist if needed. A licensed electrician, plumber or structural engineer can evaluate specific concerns in more depth.
- Talk to your lender and insurer. Ask whether the unpermitted work affects the appraisal or the policy.
Types of Work That Commonly Require Permits
Exact rules vary by locality, but these projects often require a permit:
- Structural changes, such as removing or moving walls, or adding rooms.
- New or relocated electrical circuits and panels.
- New plumbing lines, water heater replacement and bathroom additions.
- Heating, ventilation and air conditioning installations or replacements.
- Decks above a certain height or size, and many retaining walls.
- Roof replacement in some jurisdictions.
- Garage, basement or attic conversions to living space.
Cosmetic work like painting, flooring and cabinet replacement often does not need a permit, though local rules decide.
Weighing the Risk
Not all unpermitted work carries the same weight. A few questions help put it in perspective:
- Does the work involve life-safety systems such as electrical, gas, structure or egress?
- Is the space counted as living area or bedrooms in the listing and the price?
- How visible is the workmanship, and how much would be concealed behind walls?
- How difficult and costly would retroactive permitting or correction likely be?
- Would you plan to renovate the same area anyway?
Questions Buyers Ask
Am I responsible for work the previous owner did?
Once you own the home, issues with the property generally become yours to address. That is why investigating before closing matters. For questions about your specific rights, talk with a real estate attorney.
Can I get a permit for the work after I buy?
Often, but the process can involve inspections that require opening walls and correcting work that does not meet current code. Ask the building department how it handles these requests.
Will unpermitted work always lower the price?
Not always, but it can affect how space is valued and how buyers perceive risk. Your agent can help you weigh it in your offer or negotiation.
Should I ask the seller to remove unpermitted work before closing?
Removal is one option, but it can leave you with an unfinished space and its own set of problems. Correcting and permitting the work, or negotiating a credit so you can handle it yourself after closing, is often more practical. A licensed contractor can help you compare the realistic costs of each path before you decide.
