Building permits, zoning and land rules in Jim Hogg County, Texas

Unincorporated Jim Hogg County does not require a county building permit for a house, barn, shed or other structure. The county's own website lists no building, inspection or planning office among its departments, and Texas law gives counties no general authority to require one¹. State law lets only large counties — population over 250,000, or a county adjacent to one — adopt a fire code, and that fire code covers only commercial buildings, public buildings and multifamily buildings of four or more units, not single-family homes⁸. Jim Hogg County's population is far below that threshold⁶, and no adopted county fire code or building-permit program appears on the county's own pages. If your land sits inside an incorporated city within the county rather than unincorporated territory, that city could enforce its own building rules, so confirm which side of any city line your parcel is on².

Jim Hogg County has no building or zoning department, so land-use business runs through a short list of county offices. Road, bridge and driveway-culvert questions on a county road go through Jim Hogg County Road & Bridge/Motor Pool⁹. Jim Hogg County is the TCEQ-authorized OSSF agent responsible for reviewing septic applications, inspecting installations and investigating complaints, but the county website does not identify the specific desk that handles the work⁴. Start with the Jim Hogg County Judge's Office for the current OSSF contact and for unresolved floodplain or county-process questions¹⁰. None of these offices review house plans or issue a residential building permit, because unincorporated Jim Hogg County has none to issue¹.

Unincorporated Jim Hogg County has no zoning ordinance, and no county department reviews zoning requests². Texas law does not give most counties general zoning power over unincorporated land; that power exists only for a short, specific list of situations named in state law, and Jim Hogg County is not one of them³. Because no zoning ordinance applies, Jim Hogg County sets no minimum home size, no minimum lot size, no setback rule and no limit on accessory dwellings for unincorporated property³. That also means Jim Hogg County itself does not restrict living in an RV, a tiny home or a manufactured home on unincorporated land, and does not cap building height or lot coverage³. An incorporated city within the county could still set its own rules inside its limits, so confirm whether your parcel is inside one before assuming the unincorporated default applies².

Jim Hogg County is TCEQ's authorized agent for on-site sewage facilities, with responsibility for reviewing applications, inspecting installations and investigating complaints⁴. Septic systems and holding tanks require a permit and approved plan unless an exception applies⁵. A single-family home on a tract of 10 acres or more can use the state exemption only if every condition is met, including a qualified site evaluation, no other dwelling, on-property effluent disposal, no nuisance or groundwater pollution, and at least 100 feet between every system component and the property line⁵. The authority must approve or deny a complete application within 30 days⁵. Owner installation is not automatic: Jim Hogg County must allow it, and the owner must have the necessary skills and equipment, own the home and land, avoid developing any part for sale or lease, and meet every local requirement⁵. Ask the County Judge's Office for the current OSSF contact¹⁰.

Unincorporated Jim Hogg County does not use zoning to restrict RV, tiny-home or manufactured-home occupancy³. The same county default leaves no minimum dwelling size or setback set through zoning³. Incorporated-city rules can differ, so confirm that the parcel is outside city limits before relying on the unincorporated-county answer². Occupancy still needs lawful sanitation: Texas treats both septic systems and holding tanks as OSSFs that require a permit and approved plan unless a specific exception applies⁵. Contact the Jim Hogg County Judge's Office for the county's current OSSF application contact before placing or occupying an RV or tiny home on raw land^4,10.

1. Confirm whether your parcel is inside an incorporated city or in the unincorporated county — a city could enforce its own zoning and building rules, while unincorporated Jim Hogg County does not².
2. If you are building in the unincorporated county, know that no county building permit is required for the home itself¹.
3. Contact the Jim Hogg County Judge's Office to find out who currently processes septic applications, since the county itself is the TCEQ-authorized OSSF agent but we could not confirm the specific department^4,10.
4. Check whether your tract qualifies for the state's 10-acre septic exemption, which requires a single-family home on 10 acres or more, no other dwelling on the tract, and every part of the system at least 100 feet from the property line⁵.
5. If you plan to install your own septic system, confirm you qualify for the owner-builder exemption: you must have the skills and equipment to do the work, and the property cannot be developed for sale or lease⁵.
6. If you plan a well, check the Brush Country Groundwater Conservation District rules: a domestic well is exempt from its permit but must be registered⁷.
7. If your driveway or culvert touches a county road, contact Jim Hogg County Road & Bridge/Motor Pool⁹.
8. If your driveway will connect to a state highway instead, apply for a TxDOT Form 1058 driveway permit before building it¹¹.

Only about 45.6% of Jim Hogg County soils lack severe limitations for a conventional drain field, so make the site evaluation an early contingency⁶. The Brush Country Groundwater Conservation District covers Jim Hogg County, and it exempts a well used solely for domestic use or for watering wildlife, livestock or poultry from its permit requirement, though the well must still be registered with the district and its well-spacing rules still apply⁷. Every new Texas well also needs a State of Texas Water Well Report from the registered driller or owner-driller¹². Severe drought occurs in roughly 26.8% of years, so test well feasibility and yield before relying on groundwater⁶. The land is entirely at a slope of 15% or less, but we could not confirm whether Jim Hogg County requires a floodplain-development permit; ask the County Judge's Office before choosing a low-lying build site^6,10. The typical property tax bill is about $1,775 a year at an effective rate near 1.4%⁶.