Unincorporated Leon County, Florida requires a county permit for development activity, including building construction or alteration, unless a specific exemption applies1. Leon County uses the Florida Building Code and applies county zoning in unincorporated areas23. Septic permits go through the Florida Department of Environmental Protection (FDEP)4.
At a glance
- Building permit
- Required for development activity in unincorporated Leon County unless a specific exemption applies1
- Zoning
- County zoning applies in unincorporated areas; rules vary by location35
- Septic permit
- Required and issued through FDEP46
- Owner-builder
- Allowed for your own residence, with conditions7
- Accessory dwelling unit
- Allowed in any residential zoning district, attached or detached, up to 800 square feet8
- RV living
- Private-land occupancy rules were not confirmed; ask Development Services3
- Tiny home
- No specific occupancy or minimum-size rule was confirmed; ask Development Services5
- Permit fees
- Published; new-home permit cost is based on square footage under roof9
Who to call
Building permits
Leon County Development Support and Environmental Management - Building Plans Review and Inspection
Reviews building plans, provides permit intake, and inspects construction projects for compliance with the Florida Building Code in unincorporated Leon County
435 N. Macomb St., Renaissance Center, 2nd Floor, Tallahassee, FL 32301
Zoning
Leon County Development Support and Environmental Management - Development Services
Interprets and implements the Land Development Code, including land use, zoning, site plan and subdivision review, and administers the county's comprehensive plan
435 N. Macomb Street, Renaissance Center, 2nd Floor, Tallahassee, FL 32301
Septic permits
Florida Department of Environmental Protection (FDEP) - Onsite Sewage Program
Issues onsite sewage treatment and disposal (OSTDS/septic) permits for Leon County; the county no longer issues these permits itself
2600 Blair Stone Road, MS 3596, Tallahassee, FL
Contact details are copied from each office’s official page and were checked against it on September 29, 2026.
Do you need a building permit 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 area2. All building-permit applications go through the county's online permit portal, while eligible single-trade permits may issue immediately and other applications require review10. 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 estimator9. 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-in1112.
Who is the Leon County building department, and how do you reach them?
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 compliance13. Call the building division at 850-606-1333 or visit 435 N. Macomb St., Renaissance Center, 2nd Floor, Tallahassee, FL 3230113. Development Services interprets the Land Development Code and handles land use, zoning, site-plan and subdivision review14. Call Development Services at 850-606-1300 and select option 3, or visit the same Renaissance Center address14. Septic permitting is handled separately by FDEP's Onsite Sewage Program4. FDEP's published Leon County contact is 850-245-4070 or [email protected], with in-person service at 2600 Blair Stone Road, MS 3596, Tallahassee, FL15.
Does Leon County have zoning?
Yes. Leon County administers zoning and its Land Development Code in unincorporated areas, while municipal ordinances may differ inside a city35. A parcel's zoning determines what development can occur, so confirm the exact district with Development Services before designing a home or outbuilding514. Leon County applies setback, size and yard-location criteria to accessory buildings and pools, with environmental features potentially affecting placement16. 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 application8. Property division is also regulated: land intended for legal development after transfer generally needs the appropriate subdivision approval, although limited exemptions may apply17.
How do septic permits work in Leon County?
FDEP handles onsite sewage treatment and disposal system permitting in Leon County4. An applicant must submit the DEP4015 application, a site plan, the building floor plan and the other required materials through FDEP's online portal6. The required site evaluation considers soil, topography and other site conditions; a private qualified evaluator may perform it before the application is uploaded6. 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 evaluation18. 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 complete19. Contact FDEP's Onsite Sewage Program at 850-245-4070 or [email protected]15.
Can you live in an RV or tiny home on your land in Leon County?
We could not confirm a Leon County rule that specifically allows living in an RV on private land or temporary camping, so ask Development Services about the parcel and proposed duration before relying on an RV for housing14. We also could not confirm a specific tiny-home occupancy rule or countywide minimum dwelling size; the answer depends at least in part on the parcel's zoning because allowed development varies by location5. Leon County does clearly 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 permit8. 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 answer14.
Building a home in Leon County: the steps, in order
- Ask Development Services to confirm the parcel's zoning, allowed use, setbacks and any subdivision issue before design work begins51617.
- Check whether the site is in a Special Flood Hazard Area; development there requires a Leon County DSEM permit20.
- If the home will use septic, complete the site evaluation and apply through FDEP's portal with the application, site plan and floor plan6.
- Apply for the building permit through Leon County's online portal and use the published fee estimator to budget the building portion109.
- 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 insured7.
- Complete every required final inspection, including final septic approval where applicable1119.
- Obtain the certificate of occupancy before moving into the new home12.
What to check before you buy land in Leon County, Florida
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 subdivided51617. Check the flood map early because development in a Special Flood Hazard Area requires a DSEM permit20. 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 field18. 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 parcel1314. 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 $2,30521222324.
Watch-outs
- Development in a Special Flood Hazard Area requires a Leon County DSEM permit20.
- A Leon County owner-builder may not pull a permit so an unlicensed contractor can build the home; hired contractors must be licensed and insured7.
- A new Leon County home using septic cannot receive a certificate of occupancy until final septic approval is complete19.
Sources
- Floodplain Regulations, quoted and re-checked
- Floodplain Regulations, quoted and re-checked
- Development Services, quoted and re-checked
- Onsite Sewage FAQ - Permitting, quoted and re-checked
- Development Services: Frequently Asked Questions, quoted and re-checked
- Onsite Sewage FAQ - Permitting, quoted and re-checked
- Single Family Homes Permit Checklist, quoted and re-checked
- Development Services: Frequently Asked Questions, quoted and re-checked
- Building Plans Review & Inspection: Frequently Asked Questions, quoted and re-checked
- Building Plans Review & Inspection: Frequently Asked Questions, quoted and re-checked
- Single Family Homes Permit Checklist, quoted and re-checked
- Single Family Homes Permit Checklist, quoted and re-checked
- Leon County Development Support and Environmental Management - Building Plans Review and Inspection (cms.leoncountyfl.gov)
- Leon County Development Support and Environmental Management - Development Services (cms.leoncountyfl.gov)
- Florida Department of Environmental Protection (FDEP) - Onsite Sewage Program (cms.leoncountyfl.gov)
- Development Services: Frequently Asked Questions, quoted and re-checked
- Development Services: Frequently Asked Questions, quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Single Family Homes Permit Checklist, quoted and re-checked
- Floodplain Regulations, quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Wooded share of land: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 29, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.