Crockett County, Texas requires a Floodplain Development Permit before work begins in a mapped floodplain, but we could not confirm a general county building-permit rule for homes outside floodplains12. Unincorporated land has no county zoning limits on minimum home size, setbacks, RV occupancy or tiny-home occupancy3. Septic permits remain a separate TCEQ Region 8 process, including for sites outside the floodplain45.
At a glance
- Building permit
- Floodplain permit required in mapped flood areas; general home-permit rule outside them not confirmed12
- Zoning
- No county zoning limits in unincorporated Crockett County3
- Septic permits
- TCEQ Region 8 is the listed permitting authority for Crockett County46
- RV and tiny-home living
- Unrestricted by county zoning in unincorporated areas3
- Minimum home and lot size
- No county zoning minimum in unincorporated areas3
- Owner-installed septic
- Conditionally allowed for an owner’s single-family home; ask the permitting authority first7
- Private wells
- The groundwater district may permit non-exempt wells; confirm its current rules8
- Septic soils
- Only 11.3% of soils avoid severe limits for a conventional drain field9
Who to call
Floodplain permits
Crockett County Floodplain Administrator
Floodplain Development Permit applications in Crockett County
Septic permits
TCEQ Region 8 OSSF Permitting Office
OSSF permitting for Crockett County
michael.gonzales@tceq.texas.gov
622 S OAKES ST Ste K, SAN ANGELO, TX 79603 - 7035
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 Crockett 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 Crockett County, Texas?
Crockett County requires a Floodplain Development Permit for development in a FEMA-mapped Special Flood Hazard Area, and no work may begin in a floodplain until the permit is issued10. The permit process covers more than buildings: the county application includes additions, clearing, fill, grading, mining, dredging, drilling, pools and ditches11. Floodplain inspections can occur during the project and at completion, and permitted development cannot be used or occupied until the Floodplain Administrator issues a Certificate of Compliance1213.
For an ordinary home outside a floodplain, we could not confirm either a general residential building-permit requirement or an explicit exemption. The official county material establishes only the floodplain-specific requirement1. Before assuming no permit is needed, call the Crockett County Floodplain Administrator and ask whether the parcel or project triggers another county review14.
Who handles building, floodplain and septic permits in Crockett County?
We could not confirm a Crockett County building department or a general residential building-permit process outside floodplains. The confirmed county land-development contact is the Floodplain Administrator at (325) 392-2965114. For a Floodplain Development Permit, submit the county application to that office; the Floodplain Administrator reviews it, requests missing material, and approves with conditions or denies it15. The office may also require an Elevation Certificate, Substantial Improvement Determination, Floodproofing Certificate, or hydraulic analysis and No-Rise Certification16.
Septic permits do not move with building-permit or zoning authority: TCEQ Region 8 handles the separate OSSF process throughout Crockett County and can be reached at 325-655-947945. For land along a state highway, TxDOT—not the county—requires Form 1058 for a new or modified driveway17.
Does Crockett County have zoning?
Unincorporated Crockett County has no county zoning rule setting minimum dwelling size, minimum lot size, setbacks, lot coverage, building height or zoning districts3. The same county-zoning answer leaves accessory dwellings, manufactured homes, RV occupancy, tiny-home occupancy and temporary camping unrestricted by county zoning3.
No county zoning does not remove the county Floodplain Development Permit or the separate TCEQ septic permit25. Outside municipal limits, dividing a tract into two or more parts generally requires a plat when the state subdivision law applies, and the Crockett County Commissioners Court approves a required plat18. A division used primarily for agriculture, farming, ranching, wildlife management or timber production can avoid county platting if it meets the state conditions, but floodplain, wastewater and recording requirements can still apply; platting applies if the qualifying use ends19. We could not confirm a Crockett County subdivision application procedure, so ask the county about filing before dividing a tract.
How do septic permits work in Crockett County?
TCEQ Region 8 is the OSSF permitting authority listed for Crockett County, with a published phone number of 325-655-94794. A septic permit and approved plan are generally required to construct, install, alter, extend or repair an on-site sewage facility5. For systems under a maintenance contract, the provider inspects components at each site visit and reports to the owner and permitting authority; we could not confirm a separate Crockett County inspection rule20.
The narrow state permit exemption can apply to a single-family dwelling on a tract of at least 10 acres only when every condition is met, including a licensed site evaluation, at least 100 feet between every system part and the property line, on-property effluent disposal, no nuisance or groundwater pollution, and no other dwelling on the tract5. An owner may install a system for the owner’s single-family home only if the permitting authority allows it and the other ownership, skill and non-sale conditions are met7. Only 11.3% of county soils avoid severe limitations for conventional drain fields, so obtain the site evaluation before fixing a house location9.
Can you live in an RV or tiny home on your land in Crockett County?
County zoning does not restrict RV occupancy, tiny-home occupancy, manufactured-home occupancy or temporary camping on unincorporated land in Crockett County3. County zoning also sets no minimum dwelling size, minimum lot size or setback for those uses3.
An RV or tiny home still needs lawful sanitation. An OSSF can handle wastewater on the property, but construction and operation generally require a septic permit and approved plan unless every condition of the narrow state exemption is met21. A Floodplain Development Permit is also required for placement or site work in a floodplain2. We could not confirm a countywide utility-connection rule or a Crockett County-specific off-grid sanitation rule, so ask the relevant utility and TCEQ Region 8 what applies to the parcel4.
Building a home in Crockett County: the steps, in order
- Check the parcel against the current flood map and call the Crockett County Floodplain Administrator; mapped floodplain development needs approval before work starts142.
- Ask the county whether the home needs building review beyond the Floodplain Development Permit, because a general building-permit rule outside floodplains could not be confirmed1.
- Arrange the septic site evaluation and contact TCEQ Region 8 for the septic permit before choosing the final house and drain-field locations459.
- Ask the Crockett County Groundwater Conservation District whether the proposed well is exempt or needs a well permit; district rules can govern non-exempt wells in most of the county8.
- If access connects to a state highway, submit TxDOT Form 1058 before constructing or modifying the driveway17.
- If the purchase includes a land division, confirm platting before closing; qualifying divisions outside municipal limits generally need a plat approved by the Commissioners Court, subject to statutory exceptions18.
What should you check before buying land in Crockett County?
Start with water and wastewater. Crockett County averages 18.4 inches of precipitation a year, and severe drought occurs in 19.6% of years2223. Only 11.3% of soils avoid severe limitations for a conventional septic drain field, so a parcel’s usable homesite depends heavily on the site evaluation9.
Check flood mapping and legal access before closing, because floodplain development requires a county permit and a new or modified driveway along a state highway requires TxDOT Form 1058217. Ask the groundwater district whether the proposed well needs a well permit, because district rules can regulate non-exempt wells and well spacing8. The county’s effective property-tax rate is about 0.3%, and the median annual property-tax bill is about $466, but verify the actual parcel with the appraisal district2425. Crockett County has about 1 person per square mile, and the nearest city of 100,000 or more is roughly 101 miles from the county center, so price contractor travel and material delivery before committing to a remote tract2627.
Watch-outs
- Do not treat the documented floodplain permit as proof that every home needs a county permit—or that homes outside floodplains are expressly exempt; call the Floodplain Administrator for the parcel-specific answer114.
- The septic permit exemption for a tract of at least 10 acres applies only when every state condition is satisfied, including the 100-foot property-line separation5.
- TCEQ’s directory lists a San Angelo street address with a ZIP code associated with another city, so use the published phone or email to confirm the mailing address before sending documents4.
Sources
- Floodplain Development Permit Application (2026 county census)
- Floodplain Development Permit Application, quoted and re-checked
- Texas law on county zoning and building authority
- TCEQ Region 8 OSSF Permitting Office (www6.tceq.texas.gov)
- Getting a Permit for an OSSF - Such as a Septic System, quoted and re-checked
- Getting a Permit for an OSSF - Such as a Septic System (Texas statewide rule), quoted and re-checked
- Getting a Permit for an OSSF - Such as a Septic System, quoted and re-checked
- General Groundwater and Private Water Well Frequently Asked Questions, 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
- Floodplain Development Permit Application, quoted and re-checked
- Floodplain Development Permit Application, quoted and re-checked
- Floodplain Development Permit Application, quoted and re-checked
- Floodplain Development Permit Application, quoted and re-checked
- Crockett County Floodplain Administrator (texasflood.org)
- Floodplain Development Permit Application, quoted and re-checked
- Floodplain Development Permit Application, quoted and re-checked
- Use of Right of Way by Others Manual: Section 6, Access Driveways, quoted and re-checked
- Texas Local Government Code Chapter 232, County Regulation of Subdivisions, quoted and re-checked
- Texas Local Government Code Chapter 232, County Regulation of Subdivisions, quoted and re-checked
- Maintenance of On-Site Sewage Facilities (Septic Systems), quoted and re-checked
- Getting a Permit for an OSSF - Such as a Septic System, quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Share of years in severe drought: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Population density: Bolthole Index county data
- Straight-line distance from the county center to the nearest city of 100,000+ people: 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.