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PermitRoadmap

Do I need a permit for addition or structural alteration in Unincorporated Hernando County?

Permit required

Yes. In Florida, addition or structural alteration generally requires a permit, and Unincorporated Hernando County is no exception.

A building permit is required for any addition and for structural alterations such as removing or altering load-bearing walls, changing the footprint, or altering the roof structure. The Florida Building Code only exempts ordinary minor repairs that do not cut into walls or remove load-bearing supports, so structural work is never exempt. Additions usually trigger zoning review and, in flood areas, elevation requirements.

Get the checklist for your addition or structural alteration in Unincorporated Hernando County. A free check first, then a free printable Permit Prep Pack.

Local detail for Unincorporated Hernando County: Online permitting via Civic Access (Tyler EnerGov).

Florida and local notes for Unincorporated Hernando County

Structural work is specifically excluded from the HB 803 $7,500 exemption. Signed and sealed engineered plans are commonly required. Additions often trigger setback, lot-coverage, and floodplain review. Hernando County's own permitting office is the Hernando County Building Division, reachable on 352-754-4050 at https://www.hernandocounty.us/building-development/building/. Its online permit portal is https://www.hernandocounty.us/CivicAccess. It issues permits for the unincorporated county. If your city does not run its own building department, and many smaller Florida municipalities do not, this is the office that will handle the job. An addition means a full plan review, so confirm submittal requirements and current review times before you commission drawings. Hernando County's FAQ lists additions and extensions to existing structures and major renovations as work requiring a permit. A foundation survey showing setbacks, flood zone, and floor elevation may be required before the slab inspection is approved. In a flood hazard area, local FBC 110.3 requires the elevation certificate once the lowest floor is placed, and no further vertical work may continue until it is approved. Improvements costing more than 50% of a building's market value (not counting land) trigger Hernando's Substantial Improvement rule; buildings built on or before April 17, 1984 are Pre-FIRM. A Tree Removal Permit is required before removing any specimen tree (18 inches DBH or more) or majestic tree (36 inches DBH or more); sand pines and palms are excluded. The Riverine Protection Ordinance overlay generally covers properties within one mile of the Weeki Wachee, Mud, Withlacoochee, and Little Withlacoochee Rivers (Code Chapter 23, Article VI) and requires protective buffers.

Documents you may need

  • Permit applicationLikely required
  • Signed and sealed construction and structural plansLikely required
  • Site plan or surveyLikely required
  • Florida Energy Code forms for conditioned spaceSometimes required
  • Notice of commencementSometimes required
  • Hernando County building permit application (Tyler online permitting portal)Likely required
  • Signed and sealed construction plans where required, uploaded as PDFLikely required
  • Site plan or foundation survey showing setbacksLikely required
  • Hernando County Substantial Improvement form for a building in a flood zoneSometimes required
  • Tree Inspection and Permit Application if a specimen or majestic tree will be removedSometimes required

Possible inspections

  • Footing and foundation inspection
  • Framing inspection, with rough electrical, plumbing, and mechanical
  • Insulation inspection
  • Final inspection
  • Foundation inspection (stem wall, slab, footers)
  • Slab inspection
  • Framing inspection
  • Sheathing and dry-in
  • Roofing in-progress

Frequently asked questions

Do I need a permit for addition or structural alteration in Unincorporated Hernando County?
Yes. In Florida, addition or structural alteration generally requires a permit, and Unincorporated Hernando County is no exception. The documents and inspections sections on this page list what the building department typically asks for.
Who issues the permit in Unincorporated Hernando County?
The local building department for Unincorporated Hernando County handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
How do I find out the exact requirements for my project?
Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.

PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.