jaspector
§ TX Bexar County
County building permits

Unincorporated Bexar County

How to apply for a building permit in unincorporated Bexar County, Texas. Permit authority, application steps, fees, and inspection requirements.

Last verified
April 2026
On this page 4
§ 01

Permit authority

Bexar County Fire Marshal's Office, with Bexar County Public Works permit-verification review

Street address
Fire Marshal's Office, 9810 Southton Rd., San Antonio, TX 78223; Public Works, 1948 Probandt St., San Antonio, TX 78214
Coverage
Unincorporated areas of Bexar County. Does not apply to single-family dwellings, duplexes, or triplexes in unincorporated areas.
§ 02

When a permit is required

Permit triggers and exempt work for Bexar County

Building permits required for new commercial, public-accessible, and multifamily buildings; pre-built buildings placed on property; and substantial improvements in unincorporated Bexar County. Does NOT apply to single-family dwellings, duplexes, or triplexes.

Building code
2021 International Fire and Building Codes and county amendments
§ 03

Application process

Application → plan check → issuance → inspection → final

  1. 01
    Obtain Public Works authorization to issue the building permit (required first step)
  2. 02
    Apply to the Fire Marshal for building permit with Public Works authorization
  3. 03
    Fire Marshal performs plan review for compliance with 2021 International Fire and Building Codes and county amendments
  4. 04
    Obtain permit before starting work

Source: Bexar County Fire Marshal's Office, with Bexar County Public Works permit-verification review ↗

§ 04

Frequently asked

Common questions about unincorporated Bexar County permits

01 Do I need a building permit in unincorporated Bexar County, TX?
Building permits required for new commercial, public-accessible, and multifamily buildings; pre-built buildings placed on property; and substantial improvements in unincorporated Bexar County. Does NOT apply to single-family dwellings, duplexes, or triplexes.
02 How do I apply for a building permit in unincorporated Bexar County, TX?
To apply for a building permit in unincorporated Bexar County, TX, follow these steps: 1. Obtain Public Works authorization to issue the building permit (required first step) 2. Apply to the Fire Marshal for building permit with Public Works authorization 3. Fire Marshal performs plan review for compliance with 2021 International Fire and Building Codes and county amendments 4. Obtain permit before starting work

Educational reference. Permit rules and fees change — confirm current requirements directly with Bexar County Fire Marshal's Office, with Bexar County Public Works permit-verification review before applying. Jaspector is not legal advice.