Unincorporated Kimble County, Texas appears not to require a county building permit for an ordinary home, and the county has no zoning ordinance123. The City of Junction runs its own zoning and building regulations inside city limits45. Septic permits are a separate matter: the state lookup names Kimble County as the septic permitting agent for everything outside the Town of Segovia6.
At a glance
- Building permit
- Not required for an ordinary home in unincorporated Kimble County1
- Zoning
- No county zoning in unincorporated areas; the City of Junction has municipal zoning234
- Septic permit
- Generally required; the large-tract exemption applies only when every state condition is met and the local authority does not require a permit78
- RV / tiny home living
- County zoning does not restrict it on an unincorporated private tract, but septic rules still apply; rental communities need county approval397
- Owner-builder exemption
- Available for industrialized/modular housing you install yourself, under a $75 state installation permit1011
- Minimum home size
- None set by the county3
- Water wells
- Registration required with the Kimble County Groundwater Conservation District, which covers about 97% of the county12
Who to call
Planning & zoning
Subdivision plat applications and road signs for unincorporated Kimble County. The county lists no separate building or zoning department, so the County Judge's office is the closest thing Kimble County has to a land-use permitting authority.
Kimble County Courthouse, 501 Main St, Junction, TX 76849
Septic permits
Kimble County Septic Permits/Inspections
OSSF (septic) permit and inspection contact for Kimble County, listed on the county's own contact page.
Also useful
Property records and new recordings (deeds, plats) for Kimble County, plus elections, jury summons, and county and district case records.
Kimble County Courthouse, 501 Main St, Junction, TX 76849
Contact details are copied from each office’s official page and were checked against it on October 9, 2026.
Off-grid gear
Going off-grid in Kimble 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.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Kimble County, Texas?
Unincorporated Kimble County appears not to require a county building permit for an ordinary home: the county lists no building or permitting department, and Texas counties in general have no statutory authority to require a residential building permit outside a municipality1. Texas law lets a handful of large counties adopt a fire code or residential building standards, but only counties over 250,000 people or adjacent to one, and Kimble County's population of about 4,442 is nowhere close1314. Kimble County's 2024 subdivision regulations do require plan approval and possible inspection before construction, but only for the infrastructure of a manufactured-home rental community, not an ordinary single-family home15. Installing industrialized or modular housing instead of stick-frame needs a $75 state installation permit for each building, issued through the state rather than the county1110. Inside the City of Junction the answer differs: Junction has its own Chapter 3 building regulations that apply only within city limits, not on unincorporated county land5.
Who issues building permits, and who handles septic and subdivisions, in Kimble County?
Kimble County does not list a dedicated building department, so there is no county office to issue a building permit for an ordinary home1. Inside Junction, the city's building regulations and zoning apply, and the city, not the county, is the office to ask54. Septic permits and inspections are listed separately by the county for every address, Junction included8. For dividing land, the County Judge's office at the Kimble County Courthouse takes subdivision plat applications and road-sign requests for unincorporated Kimble County16. A completed application goes to the County Judge, the Commissioners Court votes on it at a public meeting, and county acceptance alone is not approval17. The published application fee is $3,000 plus $300 per lot, space or divided part, with separate recording, certificate and variance charges; ask the County Clerk for current recording amounts1819. Dividing a tract for primary agricultural, ranch, wildlife-management or timber use can qualify for a statutory exception from platting, but the exception ends if the use changes20.
Does Kimble County have zoning?
Unincorporated Kimble County has no county zoning ordinance2. Because Texas grants counties zoning power only for narrow, specifically defined situations that do not include Kimble County, the county sets no minimum lot size, minimum dwelling size, building-height limit or zoning districts on unincorporated land3. Accessory dwellings and tiny homes are therefore unrestricted by county zoning on an unincorporated private tract3. The City of Junction is different: official city material identifies Chapter 14 as zoning, although the available material does not establish the operative districts or boundaries4. Junction's city code also sets up a Planning and Zoning Commission, and the city council took up an amendment to that ordinance in December 202521. Junction also has municipal building regulations, but its zoning and building rules do not reach unincorporated land, and its septic permits still come through the county contact58. A platted subdivision in unincorporated Kimble County must still show a 20-foot building and setback line on the front, sides and rear of every lot22.
How do septic permits work in Kimble County?
A permit and approved plan are generally required to construct, install, alter, extend, repair or operate an OSSF in Kimble County23. Kimble County lists a septic permits and inspections contact, and the state lookup identifies the county as the authorized agent for the entire county except the Town of Segovia, where the TCEQ regional office in San Angelo handles permits86. Off-grid sanitation is not a free-form alternative: the narrow 10-acre permit exemption applies only when the local authority does not require a permit and the system meets state standards, receives a licensed site evaluation, serves the tract's only dwelling, keeps every component at least 100 feet from the property line, disposes of effluent on site, and creates no nuisance or groundwater pollution7. Only 4.2% of Kimble County's soils are free of severe limitations for a conventional drain field, so obtain the site evaluation before choosing a system24. Systems using secondary treatment or drip irrigation require inspection every four months unless homeowner maintenance is allowed25.
Can you live in an RV or tiny home on your land in Kimble County?
On an unincorporated private tract, Kimble County zoning does not restrict tiny-home occupancy or temporary camping3. That zoning answer does not waive sanitation rules: an OSSF generally needs a permit, and the large-tract exception applies only when every state condition is satisfied and the local permitting authority does not require one7. The rule changes if land becomes a manufactured-home rental community with two or more rented or leased spaces for trailers, campers, RVs or manufactured homes used as residences9. Kimble County requires approval of that community's infrastructure plan before construction or tenant occupancy, and compliant infrastructure receives a Certificate of Compliance26. Inside Junction, municipal zoning applies, and the available city material does not establish the operative districts or boundaries; ask the city about a specific parcel and proposed use4.
How do you build a home in Kimble County, step by step?
- Confirm whether the tract is inside Junction, where municipal zoning and building regulations replace the unincorporated-land answer45.
- If dividing land, submit the completed plat application to the County Judge; the Commissioners Court reviews compliant applications and acts by recorded vote17.
- Check a subdivision plat for the 20-foot building and setback line before siting a structure22.
- Arrange the septic site evaluation and permit before construction unless the system meets every condition of the 10-acre exemption and the local authority does not require a permit7.
- Register a new well with the Kimble County Groundwater Conservation District where that district has jurisdiction12.
- For industrialized or modular housing, budget the $75 state installation permit per building11.
- Obtain TxDOT's driveway permit before building access within a state-highway right of way27.
What should you check before buying land in Kimble County?
Water: most of Kimble County lies in the Kimble County Groundwater Conservation District, where new wells must be registered, while the northeastern corner lies in a different groundwater district12. Septic: only 4.2% of the county's soils are free of severe conventional drain-field limitations, so get a site evaluation before closing24. Flood: a subdivision plat or development plan must show floodplain, flood-zone and floodway areas, and a structure in the floodplain must have its finished floor at least 1 foot above base flood elevation28. Access: a driveway onto a state highway requires a TxDOT permit29. Taxes: the effective property-tax rate is about 1.3%, and the median annual bill is about $2,1733031.
Watch-outs
- Kimble County requires floodplain areas to be shown on subdivision plats or development plans and sets a finished-floor elevation rule, but the county site does not identify the administrator; ask the County Judge's office who handles the review2816.
- The northeastern corner of Kimble County falls under Hickory Underground Water Conservation District No. 1 rather than the Kimble County Groundwater Conservation District, and this guide could not confirm that district's own well-permit rules; check which district covers your specific parcel12.
- Kimble County's official materials mention a Certificate of Compliance for manufactured-home rental community infrastructure, but this guide could not confirm whether the county issues any certificate of occupancy for an ordinary single-family home15.
- Kimble County's own pages never state outright that a residential building permit is or is not required for a single-family home outside a subdivision, so call the County Judge's office before you pour a foundation116.
Sources
- Kimble County official website (2026 county census)
- Kimble County official website (2026 county census)
- Texas law on county zoning and building authority
- City of Junction, Texas - Permits and Code Updates, quoted and re-checked
- Junction Summary Process and Recommendations July 2025, quoted and re-checked
- TCEQ OSSF Authorized Agent search (OARS) (2026 county census)
- Getting a Permit for an OSSF - Such as a Septic System, quoted and re-checked
- Kimble County Septic Permits/Inspections (co.kimble.tx.us)
- 2024 Subdivision and Manufactured Home Rental Community Regulations for Kimble County, Texas, quoted and re-checked
- Installation Permit Information Packet (2026 county census)
- Installation Permit Information Packet, quoted and re-checked
- Kimble County Groundwater Conservation District Management Plan 2024, quoted and re-checked
- Local Government Code Chapter 233, County Regulation of Housing and Other Structures (Texas statewide rule), quoted and re-checked
- County population: Bolthole Index county data
- 2024 Subdivision and Manufactured Home Rental Community Regulations for Kimble County, Texas, quoted and re-checked
- Kimble County Judge's Office (co.kimble.tx.us)
- 2024 Subdivision and Manufactured Home Rental Community Regulations for Kimble County, Texas, quoted and re-checked
- 2024 Subdivision and Manufactured Home Rental Community Regulations for Kimble County, Texas, quoted and re-checked
- Kimble County Clerk's Office (co.kimble.tx.us)
- 2024 Subdivision and Manufactured Home Rental Community Regulations for Kimble County, Texas, quoted and re-checked
- City of Junction, Texas, quoted and re-checked
- 2024 Subdivision and Manufactured Home Rental Community Regulations for Kimble County, Texas, quoted and re-checked
- Getting a Permit for an OSSF - Such as a Septic System, quoted and re-checked
- 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
- Advice for an Owner of an On-Site Sewage Facility (Septic System), quoted and re-checked
- 2024 Subdivision and Manufactured Home Rental Community Regulations for Kimble County, Texas, quoted and re-checked
- Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
- 2024 Subdivision and Manufactured Home Rental Community Regulations for Kimble County, Texas, quoted and re-checked
- Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
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.