3 Fixes for Work Done Without a Permit in Florida

Key Takeaways

• File an after-the-fact (ATF) permit by submitting as-built plans, surveys, and scheduling inspections with your local building department; ATF fees are often double the standard permit fee in many Florida counties.

• Unpermitted work discovered during home sales can delay or derail closings as buyers' lenders often require resolution; address the issue immediately when discovered rather than waiting until days before closing.

• Hire a Florida-licensed architect or engineer to provide sealed documentation certifying structural, electrical, plumbing, or mechanical work is code-compliant, especially for concealed work behind walls or finishes.

• Florida Statutes §553.79 requires permits for construction, alteration, repair, or demolition work; violations can result in stop-work orders, fines, liens, and risk a contractor's license under §489.127.

• Requirements for after-the-fact permits vary significantly across Florida's 67 counties and cities; confirm specific local building department requirements before filing to avoid delays and resubmittals.

• Work with a dedicated permitting specialist to coordinate between building departments, engineers, contractors, and lenders; this coordination often reduces the timeline from months to weeks for approval.

So you just found out there's work done without a permit in Florida on a property you own, manage, or are about to buy. Take a breath — you are definitely not alone, and this is a lot more common (and a lot more fixable) than most folks realize. Whether it's a lanai enclosure a previous owner added, a kitchen remodel your contractor "forgot" to file, or a solar install that skipped the paperwork, there's a clear path forward. We've walked hundreds of Florida owners through exactly this situation, and we're going to walk you through it too.

This guide breaks down what Florida law actually says, what your realistic options are, and three concrete ways to get unpermitted work legalized without losing your mind (or your closing date). We'll also cover costs, inspections, and the questions we hear most from contractors, homeowners, and real estate professionals across the state. Grab a coffee — let's get you sorted.

Why Unpermitted Work Is Such a Big Deal in Florida

Florida takes permitting seriously, and honestly, it's for good reason — hurricanes, flooding, and aging housing stock mean code compliance actually protects lives and property. Under Florida Statutes §553.79, it's generally unlawful to construct, alter, repair, or demolish a building without first pulling the required permit from the local building department. There's a narrow exemption for certain owner-occupied, single-family projects valued under $7,500, but that comes with its own paperwork and conditions, so don't assume it applies to your situation without checking first.

On the contractor side, Florida Statutes §489.127 flags starting or performing permit-required work without an active permit as prohibited conduct. That means unpermitted work isn't just a homeowner headache — it can put a contractor's license at risk too.

What Typically Happens When Unpermitted Work Is Discovered

• A stop-work order or violation notice from the local building department
• A requirement to apply for an after-the-fact (ATF) permit before any sale, refinance, or continued construction
• Possible destructive or nondestructive testing to verify what's behind the walls
• Doubled permit fees in many jurisdictions (St. Lucie County and Pembroke Pines both confirm this in their public FAQs)
• Fines or liens if the issue drags on unresolved

The good news? None of this is a dead end. It just means there's a process — and having someone who knows that process cold makes an enormous difference.

3 Ways to Fix Work Done Without a Permit in Florida

Depending on your situation — whether you're a homeowner, a general contractor inheriting someone else's mess, or a realtor trying to save a closing — one of these three paths will likely apply to you.

1. File an After-the-Fact (ATF) Permit

This is the most common fix, and it's exactly what it sounds like: you apply for a permit for work that's already done. The application typically needs to be clearly labeled as after-the-fact, along with as-built plans, surveys, and scheduled inspections.

Here's the general sequence most Florida jurisdictions follow:

1. Contact the local building department for the property address to confirm ATF requirements (they vary — Indian River County, for example, may require a Florida-licensed design professional to inspect and certify concealed structural work).
2. Submit as-built drawings, site plans, or surveys documenting exactly what was constructed.
3. Schedule any required inspections, which may include opening walls or exposing concealed construction if the work can't be verified otherwise.
4. Pay the ATF fee, which is frequently double the standard permit fee in many counties.
5. Correct any code deficiencies the building official identifies before final approval.

Keep in mind — an ATF permit doesn't automatically mean the work is approved. The building official still reviews everything, and they can require corrections, additional testing, or in rare cases, removal of noncompliant work. That's why sealed, accurate as-built drawings and a properly documented engineer letter matter so much here — they're often what stands between "approved" and "open walls, please."

2. Bring in Licensed Design Professionals for Sealed Documentation

If the unpermitted work involves structural, electrical, plumbing, or mechanical systems, most jurisdictions will want sealed certification from a Florida-licensed architect or engineer confirming the work is safe and code-compliant. This is especially true for concealed work — think framing behind drywall or wiring behind a finished ceiling.

This is where having in-house structural engineering and MEP engineering resources really pays off. When a reviewer flags a concern, you want someone who can adjust the sealed drawings same-day, not wait two weeks for an outside consultant to call back. 1 Contractor Solutions keeps this work in house across all 67 Florida counties specifically because after-the-fact permitting moves fast when your engineer is on your team, not on retainer somewhere else.

3. Work with a Permitting Specialist to Coordinate the Whole Process

Honestly, this is where most people get stuck — not because the process is impossible, but because it involves juggling the building department, an engineer, possibly a contractor, and sometimes a realtor or lender all at once. That's a lot of plates to keep spinning while you're also, you know, living your life.

A dedicated permitting partner handles the plan review coordination, tracks every reviewer comment, manages revisions and resubmittals, and keeps the whole file moving instead of sitting in a queue. If you're a general contractor managing multiple ATF files across counties, a solar contractor needing fast structural sign-off, or a realtor racing a closing date, this coordination piece is often the difference between weeks and months.

What It Costs to Legalize Unpermitted Work

Costs vary by jurisdiction, project scope, and whether destructive testing is required, but here's a general framework to set expectations:

Every jurisdiction handles this a little differently, so it really pays to confirm details with the local office. If you'd rather have someone else make those calls and track every deadline, you can always get a free quote and let a team that files in more than 400 Florida municipalities handle the back-and-forth for you.

Selling a Home With Unpermitted Work

Here's something we hear constantly from real estate professionals: "Can I even sell this house?" The short answer is usually yes, but unpermitted work discovered during a home inspection or title search can absolutely delay or derail a closing if it's not addressed. Buyers' lenders often want it resolved, and some title companies will flag it outright.

Realtors and investors dealing with this should loop in realtor and closing support services early rather than discovering the problem days before closing. It's far easier to start the ATF process the moment unpermitted work turns up than to scramble once there's a contract deadline breathing down your neck.

Who Can Actually File the After-the-Fact Permit?

This depends on the jurisdiction and the type of work, but generally:

• Property owners can often file for their own single-family residence, especially for owner-builder situations
• Licensed contractors typically must be involved for work requiring a licensed trade
• Structural or MEP work usually requires a sealed submission from a Florida-licensed engineer, regardless of who files the application
• Commercial properties almost always require a licensed contractor or design professional to submit on the owner's behalf

If you're unsure which category you fall into, it's worth checking your local building department lookup tool before assuming you can self-file.

A Quick Regional Note

Requirements genuinely differ from county to county, and even city to city within the same county. Work discovered in Tampa might follow a different ATF checklist than the same scenario in St. Petersburg or Bradenton. That's part of why so many owners feel overwhelmed — the rules aren't uniform, and calling five different offices for five different answers gets old fast. Teams that work across all 67 Florida counties daily tend to know these local quirks before you even ask.

Bringing It All Together

Finding out there's unpermitted work on a property can feel like a punch to the gut, but it really doesn't have to be a crisis. Florida has a clear, well-established legalization process, and thousands of ATF permits get approved every year without drama. The keys are acting promptly, gathering the right documentation, and — ideally — having a licensed design professional in your corner who can produce sealed drawings the first time around.

If you want to see how other Florida owners and contractors have handled this exact situation, Visit us on Google — 1 Contractor Solutions to read real reviews from people who've been right where you are now. You can also follow us on LinkedIn or follow us on Facebook for ongoing updates on Florida permitting rules, since they do shift from year to year.

Ready to Get Unpermitted Work Legalized?

You don't have to figure this out alone, and you definitely don't need to keep losing sleep over it. Whether you're a homeowner staring down a violation notice, a contractor managing a portfolio of files, or a realtor trying to save a deal, there's a clear path from "uh oh" to "approved." Reach out today to get a free quote and let a team with 15+ years of Florida permitting experience and more than 5,000 completed projects handle the paperwork, the phone calls, and the reviewer comments — so you can get back to focusing on your project, your sale, or just your peace of mind.