Unincorporated Leon County, Texas has no general county building permit, but new construction, manufactured-home placement and substantial improvements need a county floodplain determination permit, which costs $201. The county has adopted no zoning for unincorporated land2, while the City of Jewett enforces its own zoning3. Septic permits, in or out of city limits, come from the county's OSSF Compliance Program4.
Do you need a building permit in Leon County, Texas?
In unincorporated Leon County the county requirement is a floodplain determination permit for new construction, manufactured-home placement and substantial improvements, not a general countywide building permit.
In unincorporated Leon County the county requirement is a floodplain determination permit for new construction, manufactured-home placement and substantial improvements, not a general countywide building permit1. The application fee is $20; land in a Floodway or Special Flood Hazard Area also needs a development permit, an elevation certificate and a $420 fee, and a permit expires after 1 year1. Property outside those zones needs no floodplain development permit, according to the application1. The county says work may not begin until written authorization is issued1. We could not confirm a separate, general Leon County building permit for an ordinary house; ask the County Judge's office about the exact parcel and project before work begins1. County procurement documents require code and final inspections for the Leon County Expo Equipment Building project, but that project-specific process does not establish an inspection rule for private homes10. The same project requires a certificate of occupancy when applicable, but we could not confirm a countywide occupancy-certificate rule10. Incorporated cities can have their own requirements, so check land inside a city with that city5.
Who issues building permits in Leon County, and how do you reach them?
Leon County's 911 Addressing/Emergency Management Office handles floodplain determination and development permits for unincorporated property; call 903-536-3158 or email permits@co.leon.tx.us for procedures and an application.
Leon County's 911 Addressing/Emergency Management Office handles floodplain determination and development permits for unincorporated property; call 903-536-3158 or email permits@co.leon.tx.us for procedures and an application1. Leon County itself is the septic permitting authority through its OSSF Compliance Program, so septic permits do not move to a city such as Jewett4. Properties inside an incorporated city are directed to that city's office for floodplain permits1. The program receives permit materials at 2212 CR 282, Buffalo, TX 75831, and its listed phone is 903-322-31014. We could not confirm a general building department or county building inspector for private construction, and the inspection and occupancy provisions found for the county's Expo Equipment Building apply only to that project10. Direct general construction, inspection and occupancy questions to the County Judge's office1. A subdivision driveway within a county or private-road right-of-way requires authorization from the applicable Precinct Commissioner7. A new or changed connection to a state highway instead goes through the local TxDOT district office11.
Does Leon County have zoning?
Leon County has documented that permitting and zoning are absent at a specific rural site outside municipal zoning jurisdiction.
Leon County has documented that permitting and zoning are absent at a specific rural site outside municipal zoning jurisdiction5. More broadly, county zoning does not set minimum dwelling size, general minimum lot size, setbacks, lot coverage or building height in unincorporated Leon County2. The City of Jewett is different: its Planning & Inspection Department enforces zoning, while its Planning & Zoning Commission reviews zoning amendments, site plans and plats3. Zoning status across Leon County therefore depends on location, and rules for municipalities other than Jewett remain unconfirmed5. County subdivision regulations still govern qualifying land divisions outside incorporated cities, including lot-size and road-setback standards, so an absence of zoning does not make every parcel unrestricted7.
How do septic permits work in Leon County?
Leon County generally requires septic permits and administers them through the county's OSSF Compliance Program.
Leon County generally requires septic permits and administers them through the county's OSSF Compliance Program4,6. Texas requires a permit and approved plan to construct, install, alter, extend or repair an OSSF, subject to narrow exemptions12. The state's tract-size exemption can apply to a single-family dwelling on at least 10 acres only when all conditions are met, including a licensed site evaluation, at least 100 feet between every OSSF component and the property line, on-site effluent disposal, and no other dwelling on the tract12. Only 35.3% of Leon County soils lack severe limitations for a conventional drain field, so arrange the site evaluation before fixing the house location9. A new surface-irrigation system requires a signed maintenance contract for its first 2 years and submission of inspection reports to the permitting authority13.
Can you live in an RV or tiny home on your land in Leon County?
County zoning does not restrict RV occupancy, tiny-home occupancy, accessory dwellings or temporary camping on private land in unincorporated Leon County.
County zoning does not restrict RV occupancy, tiny-home occupancy, accessory dwellings or temporary camping on private land in unincorporated Leon County2. Leon County has also documented one rural site where permitting and zoning are absent, but that site-specific statement does not waive rules administered by other authorities5. Septic, floodplain, subdivision, deed-restriction and municipal requirements can still apply to a particular parcel1,7. Manufactured-home placement is expressly included in the county's floodplain determination/development permit requirement for unincorporated land1. A mobile- or manufactured-home community without public wastewater must have at least 1.5 acres, but that rule does not establish a minimum acreage for one home outside a community7.
Building a home in Leon County: the steps, in order
Ask the city if the parcel is incorporated; local zoning varies across Leon County.
- Ask the city if the parcel is incorporated; local zoning varies across Leon County5.
- Contact the 911 Addressing/Emergency Management Office for the required floodplain determination before covered construction1. The determination fee is $20 unless the site is in a Floodway or Special Flood Hazard Area, where the stated package and fee are $42014.
- Ask the County Judge's office whether any general building permit, inspection or occupancy approval applies to the project; the county documents we found address inspections and occupancy only for its Expo Equipment Building project10.
What should you check before buying land in Leon County?
Start with jurisdiction and access: Jewett enforces zoning, while covered subdivisions outside incorporated cities remain subject to county subdivision regulations.
Start with jurisdiction and access: Jewett enforces zoning, while covered subdivisions outside incorporated cities remain subject to county subdivision regulations3,7. If a seller describes an agricultural exemption, confirm whether it means the county's conditional exemption for a qualifying land division; that exemption can end when the tract's primary agricultural, farm, ranch, wildlife-management or timber-production use ends7. Check floodplain status before choosing a building pad because covered construction cannot begin before county authorization1. Test septic feasibility early because only 35.3% of county soils lack severe limitations for a conventional drain field9. Leon County averages 43.3 inches of precipitation, but severe drought occurs in 17.6% of years, so verify the parcel's actual water source and well feasibility9. The effective property-tax rate is about 0.8%, with a median annual bill of $1,3399.
Watch-outs
- Leon County's general building-permit, building-inspection and certificate-of-occupancy requirements for private construction remain unconfirmed; the documented inspection and occupancy provisions apply only to the county's Expo Equipment Building project10.
- No county zoning in unincorporated Leon County does not override Jewett's municipal zoning, floodplain permits or subdivision regulations1,2,3,7.
- A septic permit is generally required even where no county zoning limit applies, unless every condition of a narrow state exemption is satisfied6,12.
- A floodplain determination permit expires after 1 year, and work may not start until the county issues written authorization1.
Sources
14 official pages, each quoted and re-checked · written October 9, 2026
- Flood Plain Development
- Texas law on county zoning and building authority
- Planning & Zoning
- Leon County Septic Permit
- RFP 2022-261 Centerville Tower Shelter
- Information for New Leon County Residents
- Leon County Subdivision Regulations
- Texas Local Government Code, Chapter 233
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- IFB 2024-315 Expo Equipment Building
- Section 4: Driveway Permits, Design, and Materials (Texas statewide rule)
- Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule)
- Affidavit to the Public — Surface Irrigation
- Floodplain Determination Permit
Written October 9, 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.
Off-grid gear
Going off-grid in Leon County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
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