Do I need a permit for an ADU or garage conversion in San Antonio, TX?

Short answer: We could not confirm from an official source whether an ADU or garage conversion needs a permit in San Antonio, TX; check with City of San Antonio Development Services Department before you start.

Last verified: 2026-10-19 · Confidence: low · Status: Unverified, confirm locally

Not legal advice. Always confirm with your local building department. Rules change, and your parcel's zoning, HOA, historic district, floodplain or utility work can change the answer. We show the official source and the date we last checked it so you can verify for yourself.

Unverified, confirm locally Confidence: low

Unverified: San Antonio has an ADU permit program, but we did not confirm its requirements from an official page we could quote.

Note: Unverified, confirm locally.

Cost

Fee not extracted; San Antonio sources list different trade permit fees, so confirm with Development Services. Unverified, confirm locally

Fee source: https://docsonline.sanantonio.gov/DSDUploads/HomeRemodeling.pdf · All verified San Antonio permit fees

Where to apply

City of San Antonio Development Services (BuildSA portal or One Stop, 1901 S. Alamo St.)

Permitting authority: City of San Antonio Development Services Department. Applies inside San Antonio city limits. Historic, Neighborhood Conservation and Corridor districts can add design review even for permit-exempt work. See also: how to apply for a building permit.

Official sources

Verified: 2026-10-19 · Status: unverified · Confidence: low

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