Building permits, zoning and land rules in Leon County, Florida

Yes. Development activity in unincorporated Leon County, Florida—including building construction, alteration and changes to the land's grade—requires a DSEM permit unless a specific exemption applies¹. Leon County uses the Florida Building Code to regulate construction in its unincorporated area¹. All building-permit applications go through the county's online permit portal, while eligible single-trade permits may issue immediately and other applications require review⁸. For a new home, the permit cost is based on square footage under the roof, and the county publishes both a fee schedule and building-fee estimator⁸. A new single-family home must pass its applicable final inspections before the county issues a certificate of occupancy, and the certificate is required before move-in⁵.

Leon County's Building Plans Review and Inspection division, part of Development Support and Environmental Management (DSEM), reviews plans, accepts permit applications and inspects construction for code compliance⁹. Call the building division at 850-606-1333 or visit 435 N. Macomb St., Renaissance Center, 2nd Floor, Tallahassee, FL 32301⁹. Development Services interprets the Land Development Code and handles land use, zoning, site-plan and subdivision review². Call Development Services at 850-606-1300 and select option 3, or visit the same Renaissance Center address². Septic permitting is handled separately by FDEP's Onsite Sewage Program³. FDEP's published Leon County contact is 850-245-4070 or osp-help@floridadep.gov, with in-person service at 2600 Blair Stone Road, MS 3596, Tallahassee, FL⁹.

Yes. Leon County administers zoning and its Land Development Code in unincorporated areas, while municipal ordinances may differ inside a city^2,4. A parcel's zoning determines what development can occur, so confirm the exact district with Development Services before designing a home or outbuilding^2,4. Leon County applies setback, size and yard-location criteria to accessory buildings and pools, with environmental features potentially affecting placement⁴. An attached or detached accessory dwelling unit is allowed in any residential zoning district if it has no more than 800 square feet of heated and cooled space, and a Residential Compliance Certificate is required before the building-permit application⁴. Property division is also regulated: land intended for legal development after transfer generally needs the appropriate subdivision approval, although limited exemptions may apply⁴.

FDEP handles onsite sewage treatment and disposal system permitting in Leon County³. An applicant must submit the DEP4015 application, a site plan, the building floor plan and the other required materials through FDEP's online portal³. The required site evaluation considers soil, topography and other site conditions; a private qualified evaluator may perform it before the application is uploaded³. In unincorporated Leon County, where central sewer is unavailable, the comprehensive plan sets a minimum residential lot size of 0.5 acre for a septic tank¹⁰. Only about 34.7% of Leon County land is rated without severe limitations for a conventional drain field, so do not assume a parcel will support a standard system before evaluation¹¹. For a single-family home using septic, connected water lines and plumbing must remain uncovered for the final approval inspection, and the county cannot issue the certificate of occupancy until final septic approval is complete⁵. Contact FDEP's Onsite Sewage Program at 850-245-4070 or osp-help@floridadep.gov⁹.

Living in an RV travel trailer is not allowed in unincorporated Leon County; Development Services can answer questions about a particular property or proposal⁶. We could not confirm whether a separate rule allows temporary camping, so do not treat the RV-living prohibition as an answer about short recreational stays; ask Development Services before camping on the parcel². Leon County's tiny-house section applies outside municipal limits, defines a tiny house as a dwelling of 400 square feet or less excluding lofts, and requires it to meet the Florida Building Code, with zoning, floodplain, environmental, utility and wastewater requirements still applying⁷. We could not confirm a countywide minimum dwelling size, and allowed development varies by location⁴. Leon County does allow an attached or detached accessory dwelling unit in any residential zoning district, limited to 800 square feet of heated and cooled space, with a Residential Compliance Certificate required before applying for the building permit⁴. A tiny house is not automatically an accessory dwelling unit, so take the proposed structure type, foundation, dimensions and intended use to Development Services for a parcel-specific answer².

1. Ask Development Services to confirm the parcel's zoning, allowed use, setbacks and any subdivision issue before design work begins⁴.
2. Check whether the site is in a Special Flood Hazard Area; development there requires a Leon County DSEM permit¹.
3. If the home will use septic, complete the site evaluation and apply through FDEP's portal with the application, site plan and floor plan³.
4. Apply for the building permit through Leon County's online portal and use the published fee estimator to budget the building portion⁸.
5. If acting as owner-builder, sign the required affidavit; the exemption allows no more than one home for your own occupancy every two years, and hired contractors must be licensed and insured⁵.
6. Complete every required final inspection, including final septic approval where applicable⁵.
7. Obtain the certificate of occupancy before moving into the new home⁵.

Confirm zoning, setbacks and legal subdivision status with Development Services before closing because allowed development varies by location and a transferred parcel intended for development generally must be legally subdivided⁴. Check the flood map early because development in a Special Flood Hazard Area requires a DSEM permit¹. Without central sewer, the comprehensive plan calls for at least 0.5 acre per septic lot¹⁰. Test septic feasibility before treating a homesite as buildable: only about 34.7% of Leon County land is rated without severe limits for a conventional drain field¹¹. We could not confirm the applicable Leon County well authority, driveway-access requirement or a countywide mandate to connect to public water or sewer, so ask DSEM which agencies serve the specific parcel^2,9. The county averages about 55.8 inches of precipitation annually, is about 86.4% wooded and has an effective property-tax rate near 0.8%, with a median annual bill around $2,305¹¹.