How to Permit an Existing Structure Florida

Permitting an existing structure in Florida — whether it was built without a permit, built under a permit that was never closed out, or built under a permit that has since expired — requires a specific process that differs from standard new construction permitting. The property owner must demonstrate to the building department that the existing structure meets the Florida Building Code (or the code in effect at the time of construction, in some cases). This requires professionally prepared as-built drawings and, for structural work, engineering calculations. Pineland Engineering (AR102594 · PE 39202) handles this process for residential and commercial clients throughout Florida.

Step 1: Determine the Permit History

Before beginning the after-the-fact permit process, it is important to research the permit history of the property. Many Florida counties have online permit portals where you can search by address. You may find that a permit was pulled but never closed out — in which case you may be able to reopen the existing permit rather than applying for a new one. You may also find that the structure was built under a permit that was properly closed, in which case the issue may be a subsequent unpermitted modification rather than the original structure. Pineland Engineering can assist with permit history research as part of our initial project assessment.

Step 2: Site Visit and As-Built Documentation

Once the permit history is understood, the next step is a site visit to document the existing structure. Pineland Engineering's engineer or architect visits the property, takes field measurements, photographs the structure, and assesses it against Florida Building Code requirements. This assessment identifies any code deficiencies that must be addressed before the permit can be issued. The site visit typically takes 1–3 hours depending on the size and complexity of the structure. Field notes and photographs are used to produce the as-built drawings.

Step 3: Prepare and Submit the Permit Package

The permit package for an existing structure includes as-built drawings, structural calculations where required, an engineer or architect letter, and the permit application. Pineland Engineering prepares all of these documents and submits them to the building department. We manage the plan review process, respond to correction notices, and coordinate with the building department through permit issuance. Once the permit is issued, the building department will schedule inspections. For existing structures, inspections may require selective demolition to expose structural elements — Pineland Engineering advises on this risk before submission.

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Frequently Asked Questions

What if the existing structure was built before the Florida Building Code?

Florida uses a 'substantial improvement' standard for older structures. If the structure predates the current code but has not been substantially improved, it may be grandfathered for some requirements. However, structures in flood zones must meet current flood zone requirements regardless of age. Pineland Engineering evaluates each situation individually.

Can I permit a structure that was built by a previous owner?

Yes. The permit is tied to the property, not the owner. As the current property owner, you are responsible for resolving unpermitted work regardless of who built it. Pineland Engineering handles after-the-fact permits for properties where the unpermitted work was done by prior owners.

What is an expired permit and how do I resolve it?

A permit expires if work does not begin within 180 days of issuance or if work is abandoned for 180 days. An expired permit must be renewed or a new permit applied for. Pineland Engineering can assist with expired permit resolution.

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Pineland Engineering — Designda Inc. — serves residential and commercial clients statewide. FL Architecture AR102594 · Engineering PE 39202. PO Box 417, Pineland, FL 33945.

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