PlainPermit

Building permits in San Antonio, TX

Short answer: In San Antonio, permits are issued by City of San Antonio Development Services Department; of the 16 common projects we checked, 6 always need a permit, 1 do not, and 6 depend on the details (3 unverified).

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.

Permit rules in San Antonio
ProjectAnswerVerified
ADU or garage conversionUnverified, confirm locally
San Antonio has an ADU permit program, but we did not confirm its requirements from an official page we could quote.
2026-10-19
DeckDepends on your project
A deck needs a permit if it is over 300 sq ft, more than 30 in above grade, attached to the house, or serves a required exit door.
2026-10-19
Driveway or patioNo permit required
No permit for sidewalks and driveways inside your property line. Historic and conservation districts may have extra rules.
2026-10-19
Electrical panel upgradePermit required
Yes. A permit is needed whenever you install sub-panels or other service equipment.
2026-10-19
EV chargerUnverified, confirm locally
We did not find an official San Antonio page on EV charger permits.
2026-10-19
FencePermit required
Yes. Building a new fence, or repairing more than 25% of a fence, needs a residential fence permit.
2026-10-19
HVAC / AC replacementPermit required
Yes. Installing HVAC equipment needs a mechanical permit.
2026-10-19
Interior / bathroom remodelDepends on your project
Cabinets, countertops, flooring, painting and tiling need no permit. Plumbing work (sinks, toilets, faucets) and structural wall changes nee…
2026-10-19
Pool or hot tubPermit required
Yes. San Antonio has a residential swimming pool permit application.
2026-10-19
Retaining wallDepends on your project
No permit for retaining walls under 4 ft (see IB 171). Taller walls need a permit.
2026-10-19
Roof replacementPermit required
Yes. Replacing or installing a roof needs a permit. Re-roofs with no pitch change are issued over the counter; pitch or material changes nee…
2026-10-19
ShedDepends on your project
No permit for a one-story storage shed up to 300 sq ft that meets setback rules. Larger sheds need a permit.
2026-10-19
Siding replacementDepends on your project
Putting new siding over existing siding needs no permit. Other siding work is covered by the Minor Repairs permit.
2026-10-19
Solar panelsUnverified, confirm locally
We did not find an official San Antonio page on solar permits.
2026-10-19
Water heater replacementPermit required
Yes. Installing or replacing a water heater needs a plumbing permit. A Limited Service Repair permit lets urgent water heater repairs be fil…
2026-10-19
Window and door replacementDepends on your project
Replacing existing doors and replacing broken window glass need no permit. Other window replacement falls under the Minor Repairs permit.
2026-10-19

Fee schedule: https://www.sa.gov/Directory/Departments/DSD/Constructing/Residential/Permits · 2 verified San Antonio permit fees

Other cities in Texas

All Texas cities · All cities · Permit guides

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.