Building permits, zoning and septic rules in Liberty County, Florida

Unincorporated Liberty County, Florida requires a building permit for new construction, and the county's Building Department reviews plans and issues permits^1,2. The division also inspects permitted construction projects, although the reviewed rule does not list every inspection stage or exemption². County permitting and inspection services cover Hosford, Lake Mystic, Telogia, Estiffanulga and Sumatra². The statewide base is the Florida Building Code, 8th Edition (2023), as updated by the Florida Building Commission⁹. Liberty County's 2026 fee schedule charges $0.75 per square foot for a residential building permit plus a $100 residential plan-review fee, and doubles the fee when work starts before the permit is pulled¹⁰. The county has not published a complete list showing whether every category of alteration, repair or accessory project needs a permit, so ask the Building Department about the exact scope of work². A separate Planning & Zoning permit is required before any additional property permit¹.

The Building Department and the Planning & Zoning Department both run out of the same county office at 10818 NW SR 20, Bristol, Florida, and both are reached at (850) 643-2215^1,2. You can apply for a building permit, manage an existing permit, or make a payment online through the county's permit portal rather than driving to Bristol². To apply for the Planning & Zoning permit, bring a copy of the deed naming you as grantee and a site map of the parcel, either to the Building Department or through the online portal¹. Planning & Zoning is administered a little differently: the Board of County Commissioners has contracted that work out to the Apalachee Regional Planning Council, but you still file through the same county office and phone number¹. For anything involving a driveway, culvert or grading onto a county road, call the separate Road and Bridge Department directly¹¹.

The Liberty County Land Development Code applies to all land in the unincorporated areas of Liberty County, and development requires prior authorization under it⁶. A Planning & Zoning permit is necessary before constructing or placing a new home, mobile home, shed or pole barn^1,6. Obtain that permit before applying for any additional property permits¹. Lot coverage depends on the applicable land-use district and proposed use rather than one countywide percentage: the reviewed code caps nonresidential coverage at 65% in Town Center, Rural Village and Mixed Use-Rural Residential districts, and 50% in Mixed Use-Suburban/Residential districts⁶. The county's land-use districts include Conservation, Industrial, Town Center, Rural Village, Mixed Use-Suburban/Residential and Mixed Use-Rural Residential, each with its own standards¹². For subdivision lots, the code sets a minimum lot size of 10,000 square feet for a single-family dwelling⁶. The code's Schedule 1.0 sets building setbacks by use: for low-density residential, a house must sit 20 feet from the front line, 20 feet from a corner-side line, 5 feet from the side lines and 20 feet from the rear line, and the medium-to-high-density residential figures are the same⁶. Industrial, commercial and office uses need 10 feet on the side⁶. Other code provisions, subdivision standards and floodplain rules may add to these, so ask Planning & Zoning to identify the parcel's district and applicable layout standards before designing the site⁶.

Septic works differently in Liberty County than in most of Florida: rather than the county health department, the Florida Department of Environmental Protection directly issues septic (OSTDS) permits here, one of a group of Panhandle counties where DEP took over the program from local health departments^3,4. To apply, you submit the DEP4015 construction-permit application and site plan, a copy of your building floor plan, and a site evaluation of the property's soil and topography, either through DEP's online permit and service request portal or by mail⁴. Statewide, Florida law requires this kind of permit before a new onsite sewage system is installed anywhere a system doesn't already exist¹³. Plan for that site evaluation to matter: only about 0.6% of Liberty County's land is rated free of severe limits for a conventional septic drain field, so an engineered system is the likely outcome on most tracts rather than the exception⁸.

Liberty County's own pages don't publish a specific answer for putting an RV or tiny home on a private parcel, and Florida's statewide rules for recreational vehicles and camps only cover permitted RV parks and recreational camps, not living in an RV on your own land¹⁴. A manufactured home is a more defined path: state law requires an onsite inspection for compliance with uniform installation standards, and a certificate of occupancy follows once the home passes that inspection⁷. Because Liberty County requires a Planning & Zoning permit before placing any new structure, including a mobile home, that office is where you find out whether your specific parcel allows an RV or tiny home as a residence and under what conditions^1,6.

1. Call Liberty County Planning & Zoning at (850) 643-2215 to identify the land-use district, confirm the proposed home and site layout, and obtain the permit required before other property permits¹.
2. Apply for the building permit at 10818 NW SR 20, Bristol, or through the county portal².
3. If acting as your own contractor, file the county's Owner/Builder affidavit; it covers a one- or two-family residence or farm outbuilding built for your own occupancy, requires direct onsite supervision, and sale or lease within one year creates a presumption the exemption was violated⁵.
4. Apply to Florida DEP for the septic permit with form DEP4015, a site plan, the floor plan, and a soil and topography site evaluation⁴.
5. Schedule the Building Services Division's required inspections for the permitted construction².
6. Ask Road and Bridge about any county-road grading or culvert work at (850) 643-4040¹¹.

About 51.5% of Liberty County is federal land, so verify a tract's boundaries and legal access before buying⁸. Liberty County is sparsely settled, with about 9.2 people per square mile and roughly 7,706 residents; the nearest city of 100,000 or more is about 41 miles from the county center⁸. About 98% of the land has a slope of 15% or less, but only about 0.6% of county soils are rated without severe limits for a conventional septic drain field⁸. Get the required septic site evaluation before committing to a house location⁴. If any part of the parcel lies in a flood hazard area, a floodplain development permit from the Floodplain Administrator is required before building, even for buildings exempt from the Florida Building Code¹⁵. The county's flood amendments set the minimum elevation for flood-area construction at the base flood elevation plus 2 feet, or the design flood elevation if higher¹⁶. Dividing land also needs county approval: a division into no more than 15 parcels of 10 acres or more can skip plat review but still requires Board approval⁶. Also confirm the land-use district and lot-coverage standard with Planning & Zoning, because the code's caps vary by district and use⁶. The effective property-tax rate is about 0.9%, with a median annual bill near $1,031⁸.