Building permits, zoning and land rules in Burleson County, Texas

Unincorporated Burleson County does not require a general building permit or county building inspection because the county does not create or enforce building codes there¹. Floodplain development is the important exception: county approval is required before construction begins inside a mapped floodplain, while construction outside the floodplain does not need a floodplain permit¹. Building-code coverage changes at municipal boundaries. Caldwell requires building permits and has amendments reflecting 2021 ICC standards³. Snook requires residential permit documents and inspections; engineered wind-bracing plans must comply with the city's adopted codes, though the available material does not identify the code edition or adoption date⁵. Confirm the parcel's jurisdiction before treating the unincorporated-area answer as controlling. Septic, driveway and subdivision approvals remain separate from the general building-permit question¹.

Burleson County does not run a general building-code or inspection program for unincorporated construction¹. For land in a mapped flood zone, applications, plans and specifications go to the Floodplain Office in the county courthouse for approval before construction begins¹. Septic systems go through the Burleson County Environmental Department, the county's TCEQ-authorized agent for OSSF permits^7,9. A driveway or culvert that crosses a county easement or right-of-way requires an access permit, and Road & Bridge inspects the location and determines the culvert size^1,10. The county publishes no application fee for that access permit¹¹. Inside Caldwell or Snook, the city issues building permits, and for floodplain questions in Caldwell, Somerville or Snook the county directs you to the city office^1,3,5. What stays with the county even inside those cities: septic permits from the Environmental Department^1,7.

Unincorporated Burleson County has no county zoning ordinance¹. Texas law gives counties zoning power only in specified areas, and Burleson County has no general authority to zone its unincorporated land². The county therefore sets no zoning-based minimum home size, setbacks, lot-coverage limit or building-height limit there, and county zoning does not restrict accessory dwellings, RV occupancy or temporary camping². City limits change the answer. Caldwell divides land into municipal zoning districts, adopted in April 2025, and regulates how property in each district may be used³. Somerville also has municipal zoning districts, an official zoning map, development standards, site-plan review and special-use permits within its corporate limits⁴. We could not confirm zoning for Snook, so ask the city before relying on the unincorporated-area answer. Dividing unincorporated land into two or more parts requires a subdivision plat unless an exception applies, including certain agricultural uses, qualifying family transfers or resulting lots over 10 acres⁶.

Every septic system in Burleson County needs an OSSF permit from the county's Environmental Department, the TCEQ-authorized agent for the county, covering new construction, modifications and repairs regardless of acreage^1,7. That's stricter than Texas's usual rule: state law lets a single-family home on 10 acres or more skip OSSF permitting if a licensed site evaluator signs off, the system stays 100 feet from every property line and the dwelling is the only one on the tract, but Burleson County's own order requires a permit on every system no matter how much land you own^1,12. Fees run $330 for a residential system and $540 for commercial; a modification against an existing permit costs $165 residential or $270 commercial, and a repair is $100¹. Lot size matters too: the county requires at least 1 acre per single-family dwelling with public water access, or 2 acres with a private well⁷. Every system needs a construction inspection before the county issues a License to Operate, and an active water connection, well or public supply, is required on the application⁹. Soils help explain the strict local rule: only 19.2% of Burleson County's land is free of severe limitations for a conventional drain field, so budget for a site evaluation and possibly an engineered system⁸.

On a private parcel in unincorporated Burleson County, county zoning does not impose a minimum home size or restrict occupancy of an RV, tiny home or accessory dwelling². Dedicated RV parks, tiny-home parks and campgrounds are different: those developments must follow the county's subdivision rules, obtain infrastructure-plan approval before construction, and observe the stated park-density limit⁶. Manufactured-home rental communities outside municipal limits also need a Commissioners Court-approved development plan, cannot be placed in the floodplain, and need a Certificate of Compliance after the final infrastructure inspection before covered utility service⁶. That rental-community rule does not establish a blanket requirement for one manufactured home on a private parcel⁶. Caldwell and Somerville have municipal zoning, so ask the applicable city before placing or occupying an RV or tiny home inside either city^3,4. We could not confirm a certificate-of-occupancy rule for a single home in unincorporated Burleson County; ask the Floodplain Office if the site is in a mapped floodplain¹.

First, verify the parcel's jurisdiction: Caldwell requires city building permits, while Snook requires residential permit documents and inspections under adopted city codes^3,5. Second, check the flood map and submit plans to the Floodplain Office before construction if the site is in a mapped floodplain¹. Third, order the septic site and soil evaluation, confirm the lot meets the applicable OSSF lot-size rule, and apply through the Environmental Department; every system needs a permit regardless of acreage^1,7,8. Fourth, obtain a county access permit for a driveway or culvert crossing a county right-of-way, or apply to TxDOT for state-highway access^1,10,13. Finally, schedule the septic construction inspection before use; unincorporated construction outside the floodplain has no general county building inspection to schedule^1,9.

Water and septic go together here: the county gets about 40.8 inches of rain a year but sees severe drought in 19.5% of years, and with just 19.2% of soils free of severe septic limitations, plan real budget for both a reliable well and a properly engineered system⁸. Land is mostly flat, with 99.7% of the county at 15% slope or less, and modest tree cover at 22.3% forested, so building sites are easy to find but shade and windbreaks may need planting⁸. Check the flood map before buying because all development within the floodplain requires county approval before construction¹. If you're drilling a well, contact the Post Oak Savannah Groundwater Conservation District first: even an exempt domestic or livestock well needs District registration and a Certificate to Proceed with Drilling before you drill¹⁴. If the tract was recently split off a larger parcel, confirm it went through the county's subdivision-plat process or qualified for an exception, then identify whether access crosses a county right-of-way or meets a state highway^6,10,13. Typical property tax runs about 1% effectively, with a median bill near $1,816 a year, on a typical home value around $271,930⁸.