Published 2026 guides from Texas Hill Country custom builders mostly run about $250 to $400 per square foot for the house itself, before land and usually before site work, and the most complex homes go past that. River Hills does not quote by the foot, because your lot, your design and your selections move the number too much for one figure to be honest.
Updated November 2026. This guide shows what the published numbers cover, what moves them, what they leave out, and how to get a real number for your home.
The Basics: Custom Home Costs Per Square Foot
Two numbers are worth knowing, and they measure different things.
| Where the number comes from | Per square foot | What it covers |
|---|---|---|
| National Association of Home Builders, 2024 cost survey | About $162 | Construction only, for an average new home of 2,647 square feet, across all kinds of builders nationwide |
| Published guides from Hill Country custom builders, 2026 | About $250 to $400, with complex homes higher | The house itself, before land and usually before site work |
These are starting points, not quotes. Neither one is a River Hills price, and neither one knows anything about your lot.
What Moves the Number
- Location and lot. The cost of land, the availability of utilities and the topography vary dramatically in the Texas Hill Country.
- Design complexity. A simple, straightforward design generally costs less per square foot than a home with intricate architectural details, unique shapes or custom features.
- Materials and finishes. The materials you choose for flooring, cabinetry, countertops and finishes can significantly change the cost.
- Size of the home. Larger homes tend to cost less per square foot than smaller ones, because certain fixed costs are spread over a larger area.
- Garages, patios and outbuildings. Homes with large garages, patios and outbuildings cost more than ones without them. Ask whether a per-foot figure counts only the air-conditioned space.
Breaking Down the Construction Costs: Where Your Money Goes
The same national survey shows how construction cost breaks down on an average new home:
| Stage | Share of construction cost |
|---|---|
| Site work | 7.6% |
| Foundations | 10.5% |
| Framing | 16.6% |
| Exterior finishes | 13.4% |
| Major system rough-ins | 19.2% |
| Interior finishes | 24.1% |
| Final steps | 6.5% |
| Other | 2.1% |
That is a rough map. On rocky Hill Country land, site work and foundations can take a larger share, and your finish selections can move the interior line a long way in either direction.
What a Square-Foot Number Leaves Out
This is where most early budgets go wrong out here. A per-foot figure usually leaves out some or all of these:
- The land. Our Property Locator service and guide to buying land in New Braunfels can help.
- Site work on Hill Country land. Limestone close to the surface, slopes, clearing and long driveways. See Hill Country site preparation.
- Well and septic. Most rural lots need both. See septic systems and planning utilities.
- Impact and utility fees. In New Braunfels these can pass $25,000 on a newly platted lot. Our New Braunfels cost guide has the current numbers.
- Design, engineering and permits. Ask whether they are in the number.
- A contingency. The National Association of Home Builders says most lenders advise 10% of project cost, or 20% if you are your own general contractor.
Customizing Your Quote
At River Hills Homes, every custom home project is unique, so we build a quote around your specific requirements.
- Initial consultation. We start with an in-depth conversation about your ideas, preferences and budget. Our eight-page specification program estimates costs based on what the local trades will charge.
- Detailed proposal. You get a proposal with the estimated total cost and a breakdown of costs. This is our Budget Cost Analysis.
- Design and planning. Our design team works with you on detailed plans and specifications, and we adjust the quote as you make changes.
- Ongoing communication. During construction you can see progress and the budget. Your project has its own dedicated account, and you receive copies of bank statements, lien releases and line-item estimates. Our Transparency Policy spells it out.
Frequently Asked Questions
How much does it cost to build a custom home per square foot?
Published 2026 guides from Texas Hill Country custom builders mostly run about $250 to $400 per square foot for the house itself, and the most complex homes go past that. Those figures usually leave out the land and often leave out site work, design, wells and septic, so ask what a number includes before you compare two of them. Also ask whether it counts only the air-conditioned space or the garage and covered patios too, because that alone can change the figure a lot. That is why River Hills prices your specific lot and plan instead of quoting by the foot. Instead, we use an eight-page specification program that estimates costs based on what the local trades will charge, so the number you see reflects the home you actually want.
What is the average cost to build a house?
In the National Association of Home Builders 2024 survey, the average new home cost $428,215 to construct, about $162 per square foot, on a home of 2,647 square feet. Add a finished lot at $91,057, plus financing, overhead, marketing, commissions and profit, and the average sale price came to $665,298. That survey covers every kind of builder and every part of the country, and it is a small sample, so read it as a national yardstick. A custom home in the Texas Hill Country usually runs higher per square foot, because the plan is one of a kind, the finishes are your choices, and the land can bring rock, a well, a septic system and a long driveway. The honest way to get your number is to price your specific lot and plan, line by line, before you commit to anything.
What You Should Do Next
Contact us or call (830) 643-0501 to start planning your custom home and get a personalized quote. Knowing the total cost before you commit is the point of that budget. You may also want to read how custom home builders charge and how long a custom home takes.
River Hills builds custom homes in New Braunfels, Canyon Lake, Wimberley, Driftwood, Dripping Springs and Spicewood.