Accessory dwelling unit companies

Looking for accessory dwelling unit companies in San Antonio, TX? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve San Antonio and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

These companies provide comprehensive support for homeowners, often pairing design experts with construction crews to handle the entire project under one roof. They are helpful when you want to avoid hiring separate architects and builders. You should look into these companies when you want a streamlined experience and a single point of accountability for your backyard project from start to finish.

Frequently asked in San Antonio

What are the disadvantages of ADUs in San Antonio?

How much does an ADU cost in Texas?

The cost for an ADU in Texas can vary quite a bit. Factors like the size, materials used, and site preparation all play a role. Simple garage conversions are often less expensive than new constructions. Getting a personalized estimate is the best way to understand the investment for your San Antonio property.

What are the rules for ADUs in Texas?

Texas has state-level guidelines, but cities like San Antonio also have their own specific zoning and building codes. These rules often cover setbacks, lot coverage, and parking requirements. The pros can help you navigate these regulations to ensure your ADU complies with all local ordinances.

Is an ADU allowed in San Antonio?

Can I get a grant for an ADU in San Antonio?

What's involved in building an ADU in San Antonio?

Also serving nearby: New Braunfels · Austin · Round Rock · Georgetown · Killeen

All cities in Texas →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

1,495,295residents

2,997per sq mile

8ZIP codes served

Serving all of San Antonio — population 1,495,295; about 2,997 residents per square mile across 498.9 sq mi. ZIP codes covered include 78201, 78202, 78203, 78204, 78205, 78206, 78207, 78208.

Neighborhoods served in San Antonio: King William Historic District, Terrell Hills, Alamo Heights, Monte Vista, Downtown San Antonio — and every surrounding area.