San Marcos FloodplainsThe Federal Emergency Management Agency (FEMA) has identified areas in the City as special flood hazard areas. These special flood hazard areas are commonly identified as floodplain and/or floodway. All structures within these areas are required to carry flood insurance due to their higher risk of flooding.
Development within San Marcos floodplainsDevelopment within the floodplain may be permitted, provided that the project meets the minimum construction standards identified in the San Marcos Municipal Code (§20.255).
Significantly improving an existing structure in the floodplain requires that the entire structure meet the minimum construction standards. Construction standards include, but are not limited to, flood proofing, anchoring, minimum finished floor elevations, and documentation of how the project meets the regulations.