Selling a House With Unpermitted Work in South Carolina
You can sell a South Carolina house with unpermitted work. The question is which buyer you can sell it to, because the work affects a lender and an insurer before it affects anyone’s opinion of the house.
Homebuyers SC has bought houses with unpermitted additions, enclosed porches, converted garages, and owner-done electrical and plumbing across Charleston, Berkeley, and Dorchester counties since 2017.
What counts as unpermitted work?
Anything that required a permit and did not get one, or got one and was never inspected and closed out. The second is more common than people expect, and it looks the same in the record.
The usual finds in Lowcountry housing:
- A screened porch enclosed into conditioned living space
- A garage or carport converted to a room
- An addition, a second bathroom, or a kitchen relocated
- Electrical panel or service upgrades done by the owner
- Plumbing moved rather than replaced in place
- A detached structure, workshop, or accessory dwelling
- Anything a previous owner did before you bought the house
That last one matters. Unpermitted work is frequently inherited, discovered by a buyer’s inspector, and blamed on the current owner, who genuinely did not know.
Is the standard different in Charleston than in Berkeley or Dorchester?
Not for the code itself, which surprises people.
South Carolina mandates a statewide building code. Under SC Code 6-9-50, local governments must adopt by reference the latest editions of the nationally recognized International Code Council codes for building, residential, gas, plumbing, mechanical, fire, and energy, plus the National Electrical Code. Administrative provisions, such as a building official’s duties and procedures, apply only where the local governing body has adopted them.
So the technical standard the work would be judged against is broadly the same across the tri-county area. What differs is which office holds the permit record, what the fee schedule looks like, and how that office handles work done without a permit. Those are local questions for the specific building department, not something to assume from a general article.
Why does unpermitted work stop a sale?
Three separate mechanisms, and each one can end a deal on its own.
| What breaks | Why |
|---|---|
| Financing | A lender’s appraiser values the house. Square footage added without a permit may not be counted, so the appraisal comes in below the contract price, or the lender conditions the loan on the work being permitted and inspected first |
| Insurance | Carriers ask about additions and electrical work. Undisclosed or unpermitted work can mean a declined application or a denied claim later, and an uninsurable house is an unfinanceable one |
| The buyer | Even a buyer who does not care inherits the problem, the liability, and the cost of resolving it. Their agent and attorney will tell them so |
The appraisal one is the most common and the least understood. You may have 400 square feet of living space that does not exist as far as the valuation is concerned, which quietly caps what any financed buyer can pay.
Should I permit it retroactively before selling?
Sometimes. Find out what it involves before deciding, because the range is wide.
| Step | What to expect |
|---|---|
| Ask the building department | What their process is for work already done, and what documentation they want. This is a free phone call and it is the first thing to do |
| Opening the walls | Inspectors generally need to see what is behind the finish. Expect drywall to come out |
| Bringing it to current code | The work is measured against today’s code, not the code in force when it was built |
| Engineer or architect | Frequently required for structural or additions |
| Fees | Permit fees, and in some jurisdictions additional charges for work done without one |
| Time | Weeks to months, and you carry the house throughout |
| Outcome | It may pass, need substantial rework, or be something that cannot be permitted where it sits |
Retroactive permitting is worth it when the work is sound, the house is otherwise strong, and legitimizing the square footage unlocks a materially higher appraisal. It is a poor bet when the work would need to be substantially rebuilt, or when it could not be permitted at all because of setbacks or zoning. See selling a property with zoning or use issues.
Do I have to disclose unpermitted work?
Disclose what you know. Do not guess about what you do not.
SC Code 27-50-40 requires a residential property condition disclosure statement from an owner, covering categories that include structural components, mechanical systems, and zoning restrictions. The statute also lets an owner indicate actual knowledge of a condition or make no representation about it, which is the honest answer when you bought the house with the work already done.
SC Code 27-50-30 exempts certain transfers, including a transfer “by a fiduciary in the course of the administration of a decedent’s estate, guardianship, conservatorship, or trust,” and transfers by foreclosure sale. An exemption from the form is never permission to conceal something you know.
How the disclosure requirement applies to your particular sale is a question for a licensed South Carolina attorney. Ask your closing attorney before completing the form.
The practical point: “I do not know whether the previous owner permitted the sunroom” is a legitimate and safe answer. “There is no unpermitted work” when you have not checked is not.
How do I find out what was permitted?
Public records, and worth doing before you list rather than after an inspector finds it.
- The county or city building department holds the permit history for the address. Ask for the permit record and whether any open permits were never finalized.
- The county assessor’s record shows the square footage and improvements on file. If the assessor’s square footage is lower than what you are selling, that gap usually points at unpermitted space.
- The Register of Deeds shows recorded documents affecting the property.
An open permit that was pulled and never closed out is its own problem, and it is easier to resolve than work with no permit at all, because the record already exists.
How does an as-is cash sale work here?
The buyer prices the work: what it would cost to permit it, correct it, or remove it, and takes that on. No lender is involved, so no appraisal gap and no lender condition can stop it. You are not asked to open walls, pull permits, or bring anything to current code.
Say what you know up front. A buyer who learns about a converted garage after the contract renegotiates. A buyer who knew from the start priced it.
In South Carolina the closing must be supervised by a licensed attorney, which is settled law from State v. Buyers Service Co., 292 S.C. 426, 357 S.E.2d 15 (1987). Ask any buyer which closing attorney they use, along with the questions in how to choose a cash home buyer in Charleston.
Frequently asked questions
Can the county make me tear it out?
Enforcement varies by jurisdiction and by what the work is. Ask the building department directly about your specific situation rather than assuming either the best or the worst.
Will the buyer’s inspector find it?
Usually. Converted spaces, non-standard framing, and owner-done electrical are what inspectors are trained to notice. Assume it will be found.
Does unpermitted work affect my property taxes?
If the assessor’s record does not reflect the improvement, the assessed value may not either. Resolving the permit can change the assessment. Ask the county assessor how they handle it.
What if I inherited the house and have no idea what was permitted?
Common, and the honest disclosure answer is that you do not know. Pull the permit record anyway. See the heir’s checklist.
What if there is an open permit from years ago?
It shows in the record and generally has to be resolved. It is often simpler than unpermitted work because the original application exists. The building department can tell you what closing it out requires.
How fast can a cash sale close?
Usually one to three weeks once the closing attorney confirms clear title. See how fast can I sell my house in South Carolina.
Need to sell this house?
We buy houses across Charleston, Berkeley, and Dorchester counties for cash, exactly as they sit. No repairs, no cleaning, no commissions, and you choose the closing date.
Caleb Pearson is the founder of Homebuyers SC and a licensed South Carolina real estate agent (License #83101) with 15+ years of real estate investing experience. He has personally been involved in over 500 purchases across South Carolina.