Buying Land in Hill County, Texas

A 2026 test case: can a Texas county pause development it can't zone against?

Hill County's position on the I-35 corridor, roughly 55 miles south of Fort Worth, has made it a live target for the data center buildout spreading across North Texas -- county officials cited as many as eight proposed projects when the Commissioners Court voted 3-2 on May 12, 2026 to impose a one-year moratorium on new data center and power-plant construction in the unincorporated county, citing public health and safety concerns. Because Texas counties have no general zoning authority to begin with (see the state hub), the moratorium immediately raised a sharper legal question than a zoning dispute would in a zoned state: does a Texas county have any authority at all to pause development it couldn't have zoned against in the first place?

That question didn't get resolved in court. Developer RCM Hill LLC filed a $100 million federal lawsuit in the Western District of Texas on May 27, 2026, arguing the county had exceeded its lawful powers, and the Commissioners Court voted unanimously to rescind the moratorium on June 4, 2026 -- just over three weeks after passing it. In its place, the court adopted a Data Center Development Checklist requiring developers to disclose expected water use, traffic impact, noise, and other infrastructure effects before proceeding, plus a proclamation that large industrial projects in the unincorporated county must comply with all applicable federal, state, and county requirements. RCM Hill dismissed its lawsuit in July 2026. For a buyer, the practical upshot is that Hill County's tools for controlling large-scale industrial development next door remain a disclosure checklist rather than a moratorium or zoning veto -- see the standalone zoning page for the full sequence and what it does and doesn't establish going forward.

Groundwater: one district, four counties, a 2-acre floor

Every well in Hill County falls under the Prairielands Groundwater Conservation District, a single district whose jurisdiction spans Ellis, Hill, Johnson, and Somervell Counties rather than Hill County alone. Since May 15, 2017, the district has generally required a new exempt well to sit on at least a 2-acre tract, with a formal exception process available for smaller parcels. Because the district straddles four counties with different growth pressures, a rule change driven by conditions in, say, fast-growing Ellis or Johnson County could still apply uniformly across the district -- confirm current registration requirements and any pending rule changes directly with Prairielands rather than assuming Hill County alone drives the district's agenda.

Septic permits run through the Sheriff's Office

Hill County processes its own OSSF (septic) permits rather than routing them through a TCEQ regional office, but the desk handling them is the Sheriff's Office Environmental Compliance Unit -- an arrangement some rural Texas counties use but that a buyer wouldn't necessarily expect. Installers must contact the unit at least five business days before a construction inspection, and the county requires a maintenance contract for the system to be filed within 30 days of any property transfer, a specific and easy-to-miss closing-time task. Confirm current fees and forms directly with the Environmental Compliance Unit before budgeting for a system or closing on a property with an existing septic system.

Subdivision rules: a 1-acre minimum and a 2025 revision

Hill County regulates the division of land under its own Subdivision Rules and Regulations, adopted under Local Government Code Chapter 232 and most recently revised in 2025 -- a current, actively maintained ordinance rather than a stale one. The rules set a 1-acre minimum net lot size and require a 60-foot road easement or right-of-way, with the Commissioners Court approving final plats only after the Commissioner for that precinct inspects and reports that required streets, culverts, and utilities are complete. Confirm the current version and any recent amendments directly with the county before relying on an older downloaded copy for a specific tract.