Accessory dwelling unit permit cost

Looking for accessory dwelling unit permit cost in San Antonio, TX? Call AccessoryDwellingUnit Solutions 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 budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.

About this service

Permitting is a necessary step that varies significantly depending on your local city or county regulations. These fees often cover zoning reviews, impact assessments, and building inspections. Because every jurisdiction has different fee structures, these costs fluctuate based on where your property is located. We help you navigate these requirements during the planning phase to ensure everything is handled correctly. Exact pricing confirmed free on the call.

Frequently asked in San Antonio

What are the disadvantages of ADUs?

How much does an ADU cost in Texas?

What are the rules for ADUs in Texas?

Texas has state-level ADU guidelines, but individual cities like San Antonio have their own specific zoning and building codes. These often dictate maximum size, setbacks, and parking requirements. Understanding these local rules is crucial. We can help you navigate them.

Is an ADU allowed in San Antonio?

Yes, San Antonio generally permits ADUs, but specific regulations apply. These rules can differ based on your property's zoning district. It's important to verify compliance with the city's planning department. We can arrange a call with a specialist to discuss your property.

What is the permit cost for an ADU in San Antonio?

Permit costs for ADUs in San Antonio are determined by the city's fee schedule, often based on the project's estimated construction value. These fees cover plan reviews and inspections. A detailed quote will include an estimate for these necessary permits. Let's get you that quote.

Can I build a two-story ADU in San Antonio?

Whether a two-story ADU is permitted in San Antonio depends on your specific zoning regulations and lot size. Height restrictions and setback requirements are key considerations. A professional can assess your property's potential. We'll set up that assessment for you.

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: Alamo Heights, Terrell Hills, King William District, Olmos Park, Southtown — and every surrounding area.