Building permits in Bexar County (Unincorporated)

Bexar County (Unincorporated) does not issue residential building permits. In the areas of Bexar County outside a municipality's limits, the county does not issue building permits for single-family dwellings. Bexar County defines a single-family dwelling as a single structure consisting of three or fewer residential dwelling units. The Bexar County Fire Marshal's Office, 210-335-0300, determines when building permits are required for structures that are not single-family dwellings. Separate approvals such as on-site sewage facilities, floodplain development and driveway access are handled by other offices and still apply.

That does not make the work unregulated. The construction standard still applies, trade licensing still applies, and separate approvals such as on-site sewage, floodplain development, and driveway access are handled by other offices. Below are the contact details for the office to ask, plus guides for the projects homeowners ask about most.

Texas does not have a single statewide building code or a statewide permitting agency; instead, state law adopts the International Residential Code as the municipal residential building code and municipalities enforce it locally, adding their own amendments. Permits are issued at the local level, and there is no statewide dollar-value threshold that exempts a project from needing a permit, so whether your work needs a permit in Bexar County (Unincorporated) depends entirely on the local jurisdiction. Many Texas counties also have limited authority to require building permits for one- and two-family homes in unincorporated areas, so if you are outside city limits the rules can differ sharply. Always confirm requirements directly with the building department that covers Bexar County (Unincorporated) before you begin.