How much does it cost to drill a well in the Texas Hill Country?

A new private well near New Braunfels typically requires drilling 300 to 700 feet and costs $30,000 to $60,000 depending on depth, casing, pump, and pressure tank. If a property already has a well, verify the flow rate, test the water quality, and consider drought resilience before closing.

What does a septic system cost on New Braunfels acreage?

Aerobic septic systems, required on most new builds since the early 2000s, cost $10,000 to $20,000 to install. TCEQ requires an annual maintenance contract at $200 to $400 per year, and pumping every three to five years runs $400 to $700. A septic inspection by a licensed installer costs $300 to $500.

Is there zoning on rural land near New Braunfels?

Unincorporated Comal, Kendall, and Blanco counties mostly do not have city style zoning. However, most acreage subdivisions have recorded deed restrictions covering minimum square footage, mobile homes, short term rentals, and more. Always pull deed restrictions, road maintenance agreements, and the survey with easements during your option period.

What does acreage ownership cost beyond the mortgage?

On a $900,000 acreage home in Comal County, expect roughly $700 to $2,500 per month beyond the mortgage: property taxes around $1,200 to $1,300, insurance $250 to $500, propane $150 to $300, septic maintenance $40 to $60, a well reserve of $50 to $100, and a private road share of $20 to $200 where applicable.

Buying Land in New Braunfels, TX: Wells, Septic, Zoning and Roads

Drake Carter
Jul 29
5 min read

What should you check before buying land in New Braunfels, TX?

Before you buy acreage in New Braunfels or the surrounding Hill Country, verify four things: the water source, the septic system, the deed restrictions, and the road access. Most parcels outside a utility district run on private wells that cost $30,000 to $60,000 to drill and aerobic septic systems that run $10,000 to $20,000 to install. Deed restrictions, road maintenance agreements, and easements all need to be pulled and read during your option period. Skipping any of these can cost you tens of thousands of dollars after closing.

By Drake and Michelle Carter | July 29, 2026

Here's the thing nobody tells you before you write an offer on acreage in the Texas Hill Country: the house is the easy part. The water, the septic, the road, and the zoning are where people get surprised, sometimes by tens of thousands of dollars.

We're Drake and Michelle Carter with The Carter Team at Keller Williams Heritage, and we work acreage deals all over the Hill Country every week. This is the reality check we give our own buyers before they fall in love with the view.

Water: the well is your first make or break item

If you're moving from a city, you've probably never thought about where your water comes from. On Hill Country acreage, that changes fast. Most parcels outside Canyon Lake Water Service, Crystal Clear SUD, and a handful of other utility districts run on private wells, and in this part of Texas you're typically drilling 300 to 700 feet to reach reliable water. A new well runs $30,000 to $60,000 depending on depth, casing, pump, and pressure tank. Watch Drake and Michelle break down well costs at 0:38.

If the property already has a well, verify three things before you close:

Flow rate. Three gallons per minute supports a household comfortably. Under one gallon per minute causes problems in a drought. Under half a gallon, you're living a water hauling lifestyle.
Water quality. Limestone wells often carry high mineral content. A basic water panel costs a few hundred dollars and should happen during your option period.
Drought resilience. The Edwards Aquifer, which many Hill Country wells tap, has been stressed through successive drought years. A rain catchment system alongside the well is worth considering.

And if a well fails after you own the place? You're drilling a new one at a premium because the home is already built, or hauling water at roughly $150 to $400 per delivery.

Septic: know the system and whether it fits your plans

Same rule applies here. Outside a utility district, you're on septic. The Hill Country has two main types: conventional anaerobic systems, which are older and use a drain field, and aerobic systems, which have been required on most new builds since the early 2000s and use spray heads and electric power. Aerobic installs run $10,000 to $20,000, TCEQ requires an annual maintenance contract at $200 to $400 a year, and pumping every three to five years adds $400 to $700. Hear the full septic rundown at 1:50.

Here's what people miss: aerobic systems are sized to the house. If you buy a three bedroom acreage home planning to add two bedrooms later, the existing septic may not be permitted for the expansion. That triggers a new permit, possibly a bigger system, and possibly a different layout on your lot. During your inspection, pay a licensed installer for a septic inspection. It typically costs $300 to $500 and is worth every penny.

Looking at a specific piece of land in New Braunfels, Canyon Lake, Spring Branch, or Bulverde? Drake and Michelle run this exact due diligence checklist for acreage buyers every week. Schedule a free meeting with The Carter Team before you write an offer and we'll help you check every box on the actual property.

Zoning, roads, and easements: what to pull during your option period

Unincorporated Comal, Kendall, and Blanco counties mostly do not have city style zoning. That sounds liberating, and it is, but it also means your neighbor's activity is not zoning protected. Watch the zoning and easement segment at 2:54.

Three documents to get in front of before your option period ends:

Deed restrictions. Even without county zoning, most acreage subdivisions have recorded restrictions from the developer: minimum square footage, no mobile homes, no short term rentals, pet limits. Get a copy and read it. If you want land with fewer strings attached, our guide to New Braunfels acreage communities covers which neighborhoods run lighter on restrictions.
Road maintenance agreements. Private roads are not county roads. The agreement tells you who pays to regrade, patch, and keep culverts clear. No agreement means every pothole can become a fight between neighbors.
Easements. Gas lines, water lines, utility access, and access easements to neighboring parcels. Pull the survey and actually read it.

Utilities and connectivity deserve a line here too. Fiber internet exists in some Hill Country pockets like Vintage Oaks, Cordillera Ranch, and the growing corridors near 281 and 46, but not everywhere. On true acreage you may be on fixed wireless, Starlink, or DSL. Electric service usually comes from Pedernales Electric, GVEC, or a similar co op, which is reliable but rural, so storm outages run longer than in town. Natural gas rarely reaches rural acreage, which means propane. Filling a 500 gallon tank in 2026 runs roughly $1,000 to $1,800, and you'll want the seller's disclosure to confirm whether the tank is owned or leased.

The real monthly cost beyond the mortgage

This is the step most buyers skip, and it's where the acreage dream quietly gets expensive. Run the numbers on a $900,000 home on three acres in Comal County. Watch the full cost breakdown at 4:28.

Property tax at roughly 1.7 percent: around $1,200 to $1,300 a month
Homeowner's insurance: $250 to $500 a month depending on carrier
Propane for heat and hot water: $150 to $300 a month on average
Septic maintenance contract and pumping: $40 to $60 a month averaged out
Well maintenance reserve: $50 to $100 a month toward pump replacement every 10 to 15 years
Private road maintenance share, if applicable: $20 to $200 a month

Realistically, that's $700 to $2,500 a month in true ownership cost on top of the mortgage and taxes. Most city relocators never underwrite this into the decision, and it's a big part of why we walk buyers through the property tax math on a Texas move before they commit to a price range.

None of this is meant to talk you out of acreage. Land out here is still one of the best lifestyle purchases in Texas, and communities across the Hill Country make it work beautifully. If you're weighing whether to buy in an established neighborhood or go fully rural, our breakdown of where to buy an acre in New Braunfels is a good next read. The point is to buy with your eyes open, because every one of these surprises is findable during the option period if you know to look.

If you're seriously looking at acreage in the Hill Country, don't run this checklist alone. Book a free call with The Carter Team and we'll walk through the well report, the septic inspection, the deed restrictions, the road agreement, and the true monthly cost on a specific address before you write the offer.

About Drake and Michelle Carter Drake and Michelle Carter are licensed Texas real estate agents and the founders of The Carter Team at Keller Williams Heritage in New Braunfels. They specialize in helping buyers and sellers navigate the South and Central Texas Hill Country, serving New Braunfels, San Marcos, Canyon Lake, Seguin, Spring Branch, Bulverde, and North San Antonio. Follow along on their YouTube channel for honest, no fluff advice on living and buying in the Hill Country.