When buying land in Kerrville, verifying water rights and ordering a current boundary survey are the two most consequential steps in due diligence. Groundwater in Kerr County is regulated by the Headwaters Groundwater Conservation District, and a professional survey reveals easements, encroachments, and access issues that no GIS map will show.
Why do water rights and surveys matter when buying land in Kerrville?
When buying land in Kerrville, water rights and boundary surveys are not optional extras, they are the foundation of any sound purchase. Groundwater in Kerr County is privately owned but locally regulated, and a tract can look perfect on paper while hiding a dry well, a severed water interest, or a fence line that sits fifty feet inside a neighbor's deed. Skipping either step is how buyers end up owning land that can't support the use they paid for.
Key Takeaways
- Groundwater in Kerr County is regulated by the Headwaters Groundwater Conservation District, which requires well registration and permitting, confirm jurisdiction before assuming an existing well or a new drill is automatically permitted.
- The City of Kerrville expressly warns that its GIS mapping shows only approximate boundary locations and is not a substitute for a professional boundary survey.
- Water rights are a title-and-use question: recorded reservations, easements, leases, or shared-well agreements in the deed chain can restrict your access even when a well is physically present on the tract.
- A current boundary survey from a registered professional land surveyor should identify fences, encroachments, easements, roads, access points, wells, tanks, and structures, not just the boundary lines.
- Kerr County land valuation requires vacant-land comparables and property-specific due diligence; the most recent general residential market figures (August 2026 median listing price of $463,000 per Realtor.com) describe homes, not acreage, and should not be used to value a tract.
What does owning groundwater actually mean in Kerr County?
Texas follows the rule of capture for groundwater, meaning the landowner generally owns the water beneath the surface. But owning it and being able to use it freely are two different things.
Kerr County sits within the Hill Country Priority Groundwater Management Area, and the Headwaters Groundwater Conservation District regulates wells here. That means a new well may require a district permit, an existing well may need to be registered, and the permitted use, domestic, livestock, irrigation, commercial, or subdivision-related, may be limited by district rules. The Texas Water Development Board is clear that there is no single statewide rule governing all private-well drilling; what applies to your tract depends on which district has jurisdiction and what that district requires.
David walks every land buyer through this before they make an offer. The question is never just "is there a well?" It's whether the well is registered, whether the production rate supports the intended use, and whether anything in the deed chain limits how that water can be accessed or shared.
Three categories of water, and why they matter differently
Groundwater (beneath the surface) is privately owned and district-regulated. Surface water in a natural watercourse belongs to the State of Texas, not the landowner. A stock tank or rain-fed pond fed by diffuse surface water belongs to the landowner. Most buyers, and some agents, blur these categories, and the blur is where expensive surprises live.
If a listing describes "river access" or "creek frontage," that does not mean you own the water in that creek. If it describes a pond, the source of that pond matters. And if the tract has a spring, the spring's legal character depends on whether it feeds a defined watercourse. These are not hypothetical distinctions, they affect what you can legally do with the water, whether you can impound it, and what happens downstream.
What a proper well due-diligence file looks like
When buying land in Kerrville with an existing well, your due-diligence file should include the State of Texas Water Well Report (required for any newly drilled well under Texas Water Development Board rules), the well's Headwaters District registration or permit documentation, the drilling report, pump specifications, a current production or flow test, a water-quality test, and any maintenance history. A water-well report alone is not enough, you need a flow test to know whether the well will actually support your planned use, and a quality test to know whether the water is suitable for that use.
If the seller can't produce these records, that's information too. The Kerr County Clerk maintains recorded instruments that may show shared-well agreements, pipeline easements, or restrictions on groundwater use that don't appear anywhere in a listing description.
Why a boundary survey is non-negotiable on Kerr County acreage
Buying land in Kerrville without a current boundary survey is one of the more common ways buyers inherit someone else's problem. The fence is not the boundary. The GIS map is not the boundary. The boundary is what a registered professional land surveyor finds on the ground, documented against the legal description in the deed.
The City of Kerrville's own GIS disclaimer states that its mapping represents only approximate property-boundary locations and is not an on-the-ground survey performed under the supervision of a registered professional land surveyor. If the city says don't rely on it, you shouldn't rely on it.
What a good survey actually shows you
A thorough boundary survey on a rural Kerr County tract should identify more than just the corners. It should show:
- Boundary lines and monuments
- Roads, access points, and rights-of-way
- Fences, and whether they match the deed lines
- Encroachments from neighboring improvements
- Easements and utility corridors crossing the tract
- The location of wells, tanks, septic systems, and structures
- Any discrepancy between the deed acreage and the measured acreage
That last point matters more than most buyers expect. A listed acreage of "approximately 47 acres" may survey at 43. On raw Hill Country land, that gap has real value implications, and it's the kind of thing that never shows up until someone measures it.
Cross-checking the survey against county records
Once you have a current survey in hand, compare it against the deed, the recorded plat, and any instruments on file with the Kerr County Surveyor at 212 Clay Street in Kerrville (open weekdays, 8 a.m. to noon and 1 to 5 p.m.). Historical survey records can show how a boundary was established and whether prior surveys conflict with current monuments. An older survey may not reflect improvements, new easements, or changes in boundary evidence, which is exactly why ordering a current one matters.
The title company handling your closing will also review the survey as part of the title search, but their review is for insurability, not for telling you whether the fence in the back pasture is actually on the line. That conversation belongs in due diligence, before you're committed.
Putting it together: due diligence before the option period expires
For rural Kerr County land, David recommends treating due diligence as a parallel workstream, not a sequential checklist. Title review, survey review, well verification, water testing, septic or wastewater feasibility, road-access confirmation, utility availability, and floodplain review should all be running at the same time, because the investigation period is finite, and it's written into the contract, not assumed.
The Kerr County Clerk's records are the place to verify recorded deeds, easements, restrictions, and any other instruments affecting ownership and use. Online records are a starting point; for anything that matters, the physical office near the courthouse is where the complete picture lives.
David also flags the July 2026 flood as a changed condition in this county. Drainage patterns, floodplain designations, and access roads on some tracts look different now than they did in early 2026, another reason a current, on-the-ground survey matters more than a pre-flood plat or a satellite image.
For a deeper look at what to check before committing to any Hill Country tract, David's guide to buying land in the Hill Country covers seven due-diligence items that apply across Kerr County and the surrounding region.
Every land purchase is different, and the only way to know whether a specific tract's water and survey situation supports your intended use is to work through the details with someone who knows this county. That's exactly the kind of conversation David has before a client ever signs a contract.
Read what clients say about working with David and the Broken Arrow Group on Google and Realtor.com.
Frequently Asked Questions
Do I own the groundwater beneath land I buy in Kerr County?
Generally yes, Texas law gives landowners ownership of the groundwater beneath their property under the rule of capture. However, the Headwaters Groundwater Conservation District regulates how that water can be accessed, requiring well registration and, in some cases, permits before drilling or using a well for certain purposes.
Does a property with a private well in Kerrville need a permit?
It depends on the well's age, use, and whether it falls within the Headwaters District's jurisdiction. The Texas Water Development Board notes that private wells generally don't require state registration, but local groundwater conservation districts can and do impose their own requirements, so confirming district rules for the specific tract is a necessary step before closing.
What water rights actually transfer when I buy ranch or acreage in Kerr County?
What transfers depends on what the deed conveys and what recorded instruments exist in the chain of title. Groundwater ownership typically follows the surface, but reservations, easements, shared-well agreements, and other recorded instruments can limit or encumber access. Reviewing the full title chain through the Kerr County Clerk before closing is the only reliable way to know what you're actually getting.
Why do I need a boundary survey if the property is already on the county GIS map?
Because the GIS map is not a survey. The City of Kerrville explicitly states that its GIS mapping shows only approximate boundary locations and is not a professional survey performed by a registered land surveyor. Only an on-the-ground survey can confirm actual boundary lines, identify encroachments, and locate easements and improvements.
Is a water-well report enough, or should I also order a flow and water-quality test?
A water-well report documents the well's construction and drilling history, but it doesn't tell you whether the well will produce enough water for your intended use or whether that water is safe. A current flow test and a water-quality test are separate steps, and both belong in your due-diligence file before the investigation period expires.
Buying land in Kerrville rewards buyers who ask the right questions before they're under contract, and the two most important questions are almost always about water and boundaries. David Hughes and the Broken Arrow Group have worked through these issues on tracts across Kerr County and the surrounding Hill Country, and they're ready to walk you through yours.
Schedule a consultation to talk through a specific tract, or get a free property valuation if you're thinking about selling acreage in the area.
This article is general information only and is not legal, tax, or financial advice. Confirm your specific situation with your title company, tax advisor, or lender. Equal Housing Opportunity. David Hughes, Broken Arrow Group, brokered by eXp Realty. Licensed by the Texas Real Estate Commission.
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