To verify that development does not have a negative impact on areas with a 1% annual chance of flooding (100 - Year Floodplain), Bexar County Public Works must review all construction activities conducted on property that is in proximity to the 100-- Year Floodplain. A flood study conducted by a Professional Engineer may be required to determine the base flood elevation or to alter the floodplain limits.To obtain a Flood Development Permit please see the following:
- Print and complete the Floodplain Development Permit Application (PDF).
- Obtain the supporting material required to review the permit application.
- Submit application and fees ($50 per activity) to the Development Services Section of Public Works located at: