Accessory dwelling unit contractor

Looking for accessory dwelling unit contractor 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

A contractor oversees the physical build, managing the subcontractors, materials, and daily construction progress. They are responsible for making sure the structure is built according to the approved plans and local safety standards. You need a contractor when you have your designs finalized and are ready for the actual building phase to begin. They act as the primary point of contact for all site activity.

Frequently asked in San Antonio

What are the disadvantages of ADUs in San Antonio?

Potential downsides include upfront construction costs and potential impacts on your existing yard space. You might also consider how an ADU could affect your property taxes. It's wise to discuss these considerations with a local expert who understands San Antonio's specific market and regulations.

How much does an ADU cost in Texas?

The cost for an ADU in Texas can vary quite a bit based on size, materials, and site preparation needed for your San Antonio property. Factors like foundation requirements and finishing details play a big role. Getting a personalized quote is the best way to understand the investment for your specific project.

What are the rules for ADUs in Texas?

Texas has state-level ADU regulations, but individual cities like San Antonio often have their own specific ordinances. These can cover things like lot coverage, setback requirements, and parking. A local pro can explain how these rules apply directly to your San Antonio location.

Is an ADU allowed in my San Antonio neighborhood?

Generally, ADUs are permitted in many residential zones across San Antonio, but specific rules can apply depending on the neighborhood's zoning. Factors like lot size and whether you're building a detached or attached unit matter. A quick call can help clarify the possibilities for your address.

Can I get advice on ADU design in San Antonio?

Absolutely. Local specialists can offer advice on maximizing your space and ensuring your ADU complements your existing San Antonio home. They can also guide you on designing for energy efficiency and local aesthetics. It’s a great way to get a feel for what’s possible.

What permits are needed for an ADU in San Antonio?

You'll typically need building permits from the City of San Antonio, and possibly zoning approvals, depending on your project. The process involves submitting plans for review. The pros who handle your estimate can often provide insights into the typical permit process for ADUs 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: Monte Vista, Alamo Heights, King William, Stone Oak, Terrell Hills — and every surrounding area.