Do I need a permit to build or rebuild a dock in Florida?
Yes. Nearly all new dock construction in Florida requires a permit from the local county, and many projects also require Florida Department of Environmental Protection (FDEP) approval and, in some cases, Army Corps of Engineers review — especially in navigable waterways or near protected shorelines. In-kind repairs to an existing dock in the same footprint typically don't require a new permit, but that exemption is narrower than most homeowners expect.
Florida dock permitting generally works in layers. Your county handles local zoning, setback, and building code compliance. FDEP reviews projects that affect state sovereign submerged lands, which covers most waterfront dock construction. The U.S. Army Corps of Engineers gets involved when a project affects a federally designated navigable waterway or wetlands under its jurisdiction.
Whether all three layers apply depends on your specific waterway and project scope. A small in-kind repair might only need a county permit or none at all; a new dock extending into open water on the St. Johns River could require all three.
St. Johns, Duval, Flagler, Clay, and Nassau counties each have their own submittal requirements, fee schedules, and review timelines, which is why permitting timelines can vary significantly for what looks like a similar project just a few miles apart.
Checklist
- ✓Confirm whether your project is new construction, an extension, or an in-kind repair
- ✓Check county zoning and waterfront setback requirements before finalizing a design
- ✓Determine if your waterway falls under FDEP sovereign submerged lands jurisdiction (most tidal and navigable waters do)
- ✓Check for Army Corps of Engineers jurisdiction if the waterway is federally designated navigable water
- ✓Verify HOA or deed restrictions in planned communities, which can be stricter than government permitting
- ✓Budget permitting timeline (6-16 weeks is typical) into your overall project schedule
Expert Tips
- Start permitting before you finalize every design detail — early conversations with county staff can flag issues that are cheap to fix on paper and expensive to fix after construction.
- Keep copies of your original dock permit; it makes future in-kind repair and rebuild permitting significantly faster.
- If you're buying waterfront property, ask the seller for existing dock permit documentation before closing — undocumented structures can complicate future repair or insurance claims.