Barndominium and barn builders in New Braunfels, Texas

New Braunfels sits at the southeastern edge of the Hill Country on I-35, wrapped around the spring-fed Comal River and the Guadalupe, with the historic Gruene district, Landa Park, and heavy river-recreation traffic. Growth is rapid, and land ranges from in-town lots to acreage in the surrounding county. Buyers on that acreage often want a barndominium or a big shop within reach of both San Antonio and Austin.

Barndominiums and metal building homes lead on the acreage, with workshops and garages close behind because so many buyers want shop or RV space. In-town building is more conventional and city-permitted.

A barndominium contractor in New Braunfels is usually building on the acreage around the city, where custom metal homes and big shops go up for buyers who work in San Antonio or Austin. A general contractor here needs to know two things about the tract before construction is scheduled: which county it sits in, since the city straddles the Comal and Guadalupe line, and whether it is in the Edwards Aquifer recharge zone. Turnkey quotes should separate the post-frame or steel shell from the interior finish and from the Comal County septic permit, which runs through the county's Environmental Health office.

How to check a builder before you sign

Two local wrinkles stand out. First, jurisdiction: the City of New Braunfels, a home-rule city, issues its own building permits inside the city limits. In its extraterritorial jurisdiction it handles subdivision and plat review rather than building permits, so an ETJ lot does not get a city building permit but still goes through the county for septic and development. Second, the county line: New Braunfels straddles both Comal and Guadalupe counties, so which county your parcel is in changes the process. Out in unincorporated Comal County you go through the County Engineer's Office, and Edwards recharge-zone parcels can require a TCEQ review. See the Comal County permitting page.

Comal County permitting reference

Acreage around New Braunfels is Hill Country limestone at the Balcones escarpment, often within the aquifer's reach. Plan an aerobic septic unit, confirm the recharge-zone and county status of the parcel, and engineer for roughly 107 to 115 mph design wind, using the exact value from the ASCE Hazard Tool.

Where New Braunfels Utilities serves the parcel, the one-time water and wastewater impact fee is fixed by the date the lot's final plat was recorded, not by the date you build. NBU's Impact Fee Policy (revision effective February 1, 2023) assesses the fee at plat recordation for land platted after June 20, 1987. Unplatted land that needs no plat, and lots platted on or before that date with no replat required, are assessed when the meter is applied for, at the rate then in effect. Either way the fee is collected with the meter or sewer connection application, or at building permit if the owner chooses, and no tap is made until it is paid.

The current schedules, all effective February 1, 2023, show how wide the spread is for a standard 5/8-inch meter: $2,738 for water and sewer together on a plat recorded between May 30, 1990 and December 11, 2000 (Schedule A-1), $11,240 for plats from November 14, 2018 to January 31, 2023 (Schedule D), and $25,692 for a plat recorded after January 31, 2023 or before June 20, 1987 (Schedule E, a 5/8 by 3/4-inch meter). Ask the seller for the plat's recording date before pricing a lot, because a replat can move it. On top of that, NBU's connection fee sheet (effective March 1, 2023) charges $401 to install a 5/8-inch meter ($490 with a tee-off add-on) and $125 for the TCEQ customer service inspection, and the customer supplies the meter box. NBU says on its new water connection page that it cannot accept a service application until the county assigns the property an address: the Comal County Engineer's Office for Comal parcels, Guadalupe County Road and Bridge in Seguin for the rest. NBU's service area maps show whether a parcel is inside its system at all; land outside it needs another water provider or a well.

NBU's Electrical Connection Policy (issued August 30, 2018) splits the cost of reaching a new home. Under its residential extension policy, NBU pays for the transformer and the secondary line running from it, temporary service included. Any primary line needed to reach the project, on or off the site, is paid by the owner as a contribution in aid of construction. The policy's fee table prices single-phase primary at $13.00 a linear foot overhead and $5.00 a foot underground, plus $550 for a 30-foot wood service pole and $1,025 for a single-phase primary riser, and it says every fee may adjust each year with the Consumer Price Index. On an underground run the customer furnishes and installs the trench and conduit to NBU's specification, and NBU pulls the cable and makes the connections.

The line also needs room. NBU designs and routes every extension, typical utility easements are 15 feet wide, and clearing the easement of trees, stumps, brush and boulders is the customer's job before NBU builds. A private-property extension easement has to carry a vehicle; where it cannot, the policy calls for a 12-foot path of 6-inch compacted TxDOT A-2 base with drainage crossings in culverts. A shop with a large motor load should be planned early: three-phase service is offered at a demand of at least 50 kVA or a single three-phase motor larger than 7.5 horsepower, and anything over 200 amps needs a load analysis from the owner's engineer or electrician. Inside the city limits, NBU's electrical connection page wants the approved City of New Braunfels or Schertz inspection before it schedules its own meter loop inspection. NBU inspects every temporary and permanent meter loop, inside or outside the city, and the first inspection carries no charge.

A well that draws from or passes through the Edwards Aquifer answers to the Edwards Aquifer Authority, which issues a construction permit for every new, reconstructed or closed well of that kind. The application costs $25, takes about 30 days once complete, and no drilling may start before the permit is issued (Trinity wells elsewhere in Comal County go to the Comal Trinity district instead, per the Comal County page). Under EAA rule 713.209, as printed on its property line affidavit, the well sits at least 50 feet from a watertight septic tank, 150 feet from a drain field or spray area, 150 feet from livestock or poultry yards, and 50 feet from the property line. A well closer to the line than that needs a notarized affidavit signed by the neighbor.

A house or ranch well needs no withdrawal permit if it qualifies as exempt. The authority's registration page sets four tests: the well is registered, it cannot produce more than 25,000 gallons a day, it is used only for domestic or livestock purposes, and it does not serve a subdivision requiring platting, which the page defines as supplying more than three homes in a recorded subdivision. A rental cabin, event venue or business use falls outside that and goes through the permit side. The authority's site groups Comal Springs with its San Antonio Pool, and on October 20, 2026 it showed that pool in Stage 2 of its critical period rules, a 30 percent reduction.