Permit guide · Unpermitted Work
Building without a permit does not always mean the work must be removed, but it usually means the AHJ can require documentation, after-the-fact permit review, inspections, corrections, fees, or proof that the work meets current code. The recovery path depends on the address, project scope, what is already covered up, and whether a stop work order or permit violation has been issued.
What this guide checks
Violations, documentation, retroactive review, inspections
Enter your address to find your building department, then answer a few questions to see if you likely need a permit.
What's an AHJ?
The specific city, village, or county office that issues permits. Their boundaries don't always match your mailing address.
GPS-verified
We cross-check your coordinates against municipal boundary polygons, not just ZIP codes.
Wrong AHJ = weeks lost
Filing with the wrong building department means your application sits unreviewed.
The short answer
If you built without a permit, the safest next step is to stop expanding the scope, identify the AHJ, document the unpermitted work, and ask what recovery path applies. Many jurisdictions use an after-the-fact permit or retroactive building permit process, but approval is not automatic. Inspectors may require drawings, photos, contractor information, opened walls, corrections, reinspection, fines, or final closeout records before the project is considered resolved.
What we check
If there is a stop work order, permit violation, or active enforcement notice, continuing the job can make the problem worse. A clean recovery path usually starts by freezing the scope, preserving records, and confirming whether emergency safety work is allowed.
The reviewing AHJ may be a city, village, township, county, or special district. The permit office may check whether any building permit, zoning approval, trade permit, inspection record, complaint, or expired application already exists for the property.
Unpermitted work often needs photos, measurements, contractor invoices, material specs, site plans, floor plans, and a clear description of what was built. Covered structural, electrical, plumbing, or mechanical work may require additional proof or selective exposure.
An after-the-fact permit or retroactive building permit usually asks the reviewer to evaluate completed or partially completed work against the applicable code path. Some AHJs charge extra fees, require licensed contractors, or treat the review as a violation correction.
Inspection is usually the turning point. The AHJ may approve visible work, request corrections, require engineering, ask for rough-in access, or order remediation before final signoff. Work hidden behind finishes can be slower and more expensive to verify.
The goal is not just getting a permit number. A resolved path should produce final inspection records, correction approvals, certificates where applicable, and documentation that future buyers, insurers, lenders, or contractors can understand.
Process
The most expensive mistake is treating a retroactive building permit like a normal late form. Once unpermitted construction is discovered, the AHJ may care about what was built, what is concealed, who performed the work, whether zoning was violated, and whether life-safety items were affected. Pause, document, and get the recovery path in writing before adding more work that may also need inspection.
Per state
IL
Illinois unpermitted work rules are highly local. A municipality may require an after-the-fact permit, contractor registration, zoning review, doubled fees, opened work, or correction inspections depending on the project and address.
WI
Wisconsin recovery paths can involve local permitting plus state residential code expectations. One- and two-family work may need UDC-aware review, local zoning approval, and inspection access before closeout.
IN
Indiana permit violation and retroactive review procedures vary by city, county, and local code adoption. Some projects trigger county-level review, local zoning review, or separate trade permits depending on scope.
Watch for these
Next permit paths
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Our permit experts identify the AHJ, map the after-the-fact permit or retroactive review path, organize the document list, and help you understand what inspection, correction, and closeout steps may come next.
This guide is general information, not legal advice. Our DIY Permit Package currently covers sheds and garages. For unpermitted work recovery, our Done-For-You team handles the research and filing guidance.
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For contractors
Use Permitech to triage unpermitted work, identify the AHJ path, prepare the document checklist, and reduce back-and-forth before your team commits to corrective work.
Our self-serve subscription plans currently cover sheds and garages. For unpermitted work permits and other project types, we work with contractors on a custom contract basis tailored to your volume and service area. Fill out the quote form above and select "Contractor", we'll put together a plan that fits your operation.
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