Number 1: San Antonio ADU Architects
on GoogleWoodland Hills, CA
Gather ADU is an ADU builder based in Woodland Hills, California.
(323) 591-3717 22238 Flanco Rd, Woodland Hills, CA 91364
ADU builders in San Antonio
The 4 ADU builders from Google's results for San Antonio, Texas, ordered by Google rating weighted by review count. No firm pays to be listed or ranked.
Last updated
- Garage conversion ADU
- $51,500 – $129,000existing structure
- Detached ADU
- $129,000 – $344,000new build, utilities
- Prefab ADU
- $103,000 – $258,000unit, foundation, install
- San Antonio vs US
- -14%well below the US median
Licensing in Texas. Texas has no state license for general contractors or remodelers. Electrical, plumbing and HVAC work does need a state license.
Number 2: Luxterra Builders
on GoogleSan Antonio, TX
Luxterra Builders is a San Antonio design-build contractor working on custom homes, ADUs, small multifamily buildings and industrial projects. Ground-up builds and additions run on set budgets and schedules, with weekly client updates, for owners in San Antonio and nearby cities.
(254) 290-2482 917 Burnet St, San Antonio, TX 78202
Number 3: Carson Custom Homes
on GoogleSan Antonio, TX
For San Antonio homeowners adding a guest house or casita, Carson Custom Homes offers predesigned accessory dwelling unit plans that can be customized. Plans come in single-story and two-story layouts with several exterior options. Bathroom remodeling is also among its listed trades.
(210) 347-8434 6335 Camp Bullis Rd Ste 24, San Antonio, TX 78257
Number 4: Ar Design
on GoogleSan Antonio, TX
Ar Design builds accessory dwelling units in the San Antonio, Texas area.
(210) 901-8849 7001 I-10 Ste 304, San Antonio, TX 78213
What ADU builders charge in San Antonio
In San Antonio, a garage conversion ADU typically costs $51,500 – $129,000. Remodeling labor in San Antonio runs about 14% below the US median, which accounts for most of the difference from the same project elsewhere.
How to choose between them
- Check the license yourself. Where Texas or San Antonio licenses this work, the licensing board's own lookup confirms a license number in a minute. Do it before you sign, not after.
- Get three bids on the same scope. Written down, split into labor, materials, allowances and anything structural. Most people compare a total against a total and end up choosing between two different projects.
- Ask what is not included. Permits, debris removal, fixture and finish allowances, and repairs after demolition are the four that turn a cheap bid into an average one.
- Never pay a large deposit up front. A deposit to order materials and hold a start date is normal. Half the total before anyone shows up is not.
How this list is ordered
These are the firms from Google's results for "adu builders san antonio", with directories, chains and suppliers removed. They are ordered by Google rating weighted by review count, and the ratings shown are Google's. No firm pays to be listed or ranked. The list was last updated in October 2026.
ADU builders in San Antonio: common questions
Can I build an ADU on my lot?
It depends on your city and state. California, Oregon and Washington have state laws that make ADUs allowed on most single-family lots. Elsewhere it is set by local zoning, so check lot size, setback and owner-occupancy rules with your city first.