You can sell a house with unpermitted work in Florida, and doing so is legal, but you have to disclose what you know about that work to the buyer. Florida requires permits for almost any structural, electrical, plumbing, or mechanical change to a home, and a seller who hides unpermitted work can be sued years after closing. The practical choice is whether to disclose the work and price the home accordingly, or legalize it through a retroactive permit before you list.
What Counts as Unpermitted Work
Florida law makes it unlawful to construct, alter, modify, repair, or demolish any building without first getting a permit from the local enforcing agency.1Justia Law. Florida Code Title XXXIII Chapter 553 Part IV – Section 553.79 Room additions, enclosed patios, structural changes, re-roofing, electrical rewiring, plumbing changes, and water heater or HVAC swaps generally need one. Cosmetic work like painting and flooring usually does not.
If a project was done without pulling a permit, the local building department has no record it happened and no verification it was done to code. That gap is what triggers everything else in this article.
What You Must Disclose When Selling
Under the Florida Supreme Court’s decision in Johnson v. Davis, a home seller who knows of facts that materially affect the property’s value and are not readily observable to the buyer has a duty to disclose them.2Justia. Johnson v. Davis Unpermitted work fits that rule. A buyer walking through a renovated kitchen can’t tell whether the work was permitted, and the absence of permits can produce code violations, safety issues, and real costs down the road.
The obligation also shows up in the paperwork. The standard Florida Realtors/Florida Bar “As Is” Residential Contract for Sale and Purchase contains a permits section where the seller states whether they know of any improvements made without required permits.3Florida Realtors. AS IS Residential Contract For Sale And Purchase Most deals also include a separate Seller’s Property Disclosure form with detailed questions about the home’s condition and history.
Selling “as-is” does not eliminate the duty. The as-is clause protects you from defects you genuinely did not know about. It does not protect you from concealing something you knew.
What Happens If You Hide It
A buyer who discovers hidden unpermitted work after closing can sue for fraudulent nondisclosure, often called a Johnson v. Davis claim. The buyer does not have to prove you set out to deceive them. They have to show you knew about a material defect that wasn’t readily observable and failed to disclose it.2Justia. Johnson v. Davis Damages typically cover the cost of retroactive permits, bringing the work up to code, and related losses.
In more serious cases, a buyer can ask a court for rescission, which unwinds the sale entirely. If the court grants it, you take the property back and return the purchase price. Courts reach for rescission when money damages alone won’t fix the problem.
How Long a Buyer Has to Sue
The window is longer than sellers usually assume. Fraud claims in Florida carry a four-year statute of limitations, but the clock starts when the buyer discovers the fraud or reasonably should have discovered it, not at closing. A buyer who first learns about the unpermitted addition during a renovation five years later can still have a live claim. The outer limit is 12 years from the date of the fraud, regardless of when it was discovered.4The Florida Legislature. Florida Statutes Section 95.031
“I Didn’t Know” Is a Hard Sell
Claiming you had no idea rarely works if you hired the contractor or lived in the home while the work was happening. Courts look at whether you reasonably should have known, not whether you had literal proof. Commissioning a renovation and never seeing a permit posted at the job site is the kind of fact a judge will weigh against you.
Why Buyers Care So Much
Unpermitted work follows the property to the new owner, and every problem attached to it is a reason buyers either discount their offer or walk away.
Financing is the first hurdle. Lenders treat the home as collateral, and an appraiser who spots an addition that doesn’t match public permit records can push the lender to deny the loan or demand the issue be fixed before closing. That’s why homes with known unpermitted work tend to draw cash buyers and investors.
Insurance is the second. Insurers often review inspection reports and satellite imagery, and if an unpermitted addition turns up they may refuse a policy, raise premiums, or exclude the unpermitted portion from coverage. No insurance usually means no mortgage.
Property taxes are the third. Unpermitted additions that increase livable square footage can trigger a reassessment when the property appraiser eventually catches up through aerial photos, a neighbor complaint, or an unrelated permit application.
Finally, code enforcement. Once a building department discovers the work, it can issue a notice of violation and, if unresolved, refer the case to a code enforcement board or special magistrate that imposes daily fines. A certified copy of the enforcement order can be recorded and becomes a lien against the property, and fines keep accruing until the owner complies. After three months of an unpaid lien, the local government can move to foreclose or sue for a money judgment.5Florida Senate. Florida Code Title XI Chapter 162 Part I – Section 162.09 Florida’s homestead exemption blocks foreclosure of a code enforcement lien on a primary residence, but the lien stays on the property and has to be cleared before a clean sale.
Your Two Options for Selling
Which path makes sense depends on budget, timeline, and how much the unpermitted work is dragging on the home’s value.
Sell As-Is With Full Disclosure
The simplest route is to disclose the unpermitted work on the seller’s disclosure and the contract’s permits section, price the home to reflect it, and let the buyer decide. This satisfies your legal duty and skips the time and cost of retroactive permitting. The trade-off is a lower sale price, because buyers will subtract their estimate of permit fees, inspections, and any code corrections from what they offer.
This works best when the unpermitted work is minor or when you need to close quickly. It also tends to attract cash buyers and investors who are comfortable handling permit issues on their own.
Legalize the Work First With a Retroactive Permit
The other option is to bring the work into compliance before listing, using what building departments call a retroactive or “as-built” permit. The general steps:
- A licensed architect or engineer prepares as-built drawings showing the work as it currently exists, including structural, electrical, mechanical, and plumbing details.
- You provide evidence of when the construction happened, such as aerial photos, tax records, or surveys, because the department may apply the code in effect at the time of construction rather than the current code.
- The architect or engineer certifies the structure is sound and meets the applicable code.
- The building department inspects. Current life-safety requirements, including smoke detectors, egress, and hurricane shutters, typically must be met regardless of when the work was done.
- You correct any deficiencies the inspectors find before the permit is closed out.
Costs vary widely. Legalizing a simple enclosed patio might run a few thousand dollars. A full addition with plumbing and electrical problems can climb into five figures once you add architect fees, permit fees, and remediation. On larger projects the math often favors permitting, because closing out the retroactive permit clears the stigma and lets you list at full market value.
One caveat: there is no guarantee the building department will approve the work as it stands. If the construction has serious structural or safety problems, you may have to tear out portions and rebuild them to code. A licensed contractor’s honest assessment of the work before you start the process keeps the surprises to a minimum.