Accessory dwelling unit services

Looking for accessory dwelling unit services in San Antonio, TX? Call AccessoryDwellingUnit Pros 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 is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.

About this service

These services cover the entire lifecycle of building a backyard home, from initial property assessments and architectural design to navigating local zoning permits. You need this when you want to add living space to your property but don’t know where to start with city regulations or site feasibility. Professionals handle the paperwork, site planning, and technical requirements so you can focus on the final layout and how you plan to use the additional square footage on your lot.

Frequently asked in San Antonio

What are the disadvantages of ADUs in San Antonio?

How much does an ADU cost in Texas?

What are the rules for ADUs in San Antonio?

San Antonio has specific zoning ordinances that dictate ADU placement, size, and occupancy. These rules are designed to ensure ADUs integrate well into existing neighborhoods. Understanding these regulations is key to a smooth process. Pros can explain the local requirements for your address.

Can I build an ADU on my property in San Antonio?

Generally, yes, if your property meets San Antonio's zoning requirements for accessory dwelling units. This often includes lot size, setbacks from property lines, and parking provisions. A site assessment and consultation are the best ways to confirm eligibility. We can arrange that for you.

What's involved in the ADU permit process in San Antonio?

How long does it take to build 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, Southtown, Alamo Heights, The Pearl, Monte Vista, Olmos Park — and every surrounding area.