Flood Zones: Live Oak vs San Antonio
How do flood zones rules compare between Live Oak, TX and San Antonio, TX?
Live Oak and San Antonio have similar restriction levels.
Live Oak, TX
Bexar County
Live Oak participates in the National Flood Insurance Program and requires the lowest floor of new construction in a FEMA Special Flood Hazard Area to be at least one foot above base flood elevation.
View full Live Oak rules →San Antonio, TX
Bexar County
San Antonio enforces floodplain development standards through the UDC and Chapter 34 (Water and Sewers). FEMA-mapped Special Flood Hazard Areas (SFHAs) restrict building in the 100-year floodplain. Building in floodplains requires permits and compliance with elevation and construction standards. FEMA released updated flood maps for San Antonio and Bexar County effective July 2023, and the Concepcion Creek project will add 4,000+ structures to the floodplain by 2027.
View full San Antonio rules →Key Facts Comparison
| Fact | Live Oak | San Antonio |
|---|---|---|
| NFIP participation | Yes | - |
| Freeboard | 1 foot above BFE | - |
| Substantial improvement | 50 percent of market value | - |
| Primary flood source | Cibolo Creek | - |
| Code Section | - | UDC; Chapter 34 (Water and Sewers); Div. 6 Aquifer Recharge Zone |
| FEMA Maps | - | Updated July 2023; Concepcion Creek revision by 2027 |
| High-Risk Zones | - | Zone A and AE (100-year floodplain) |
| Insurance | - | Required for mortgaged properties in SFHAs |
| Building | - | Permits required; elevation and construction standards apply |
Highlighted rows indicate differences between cities.
Live Oak FAQ
How do I know if Im in a flood zone?
Check your property on the FEMA Map Service Center at msc.fema.gov or request a determination from the Live Oak Planning Department.
Do I need flood insurance?
Federally backed mortgages in Zone A or AE require flood insurance; it is optional but recommended elsewhere.
San Antonio FAQ
Can I build in a flood zone in San Antonio?
Yes, but you must obtain permits and comply with floodplain construction standards. Properties in FEMA-mapped Special Flood Hazard Areas face elevation requirements, construction restrictions, and mandatory flood insurance for federally backed mortgages.
How do I check if my property is in a flood zone?
Use the San Antonio River Authority's Floodplain Viewer or FEMA's Flood Map Service Center (msc.fema.gov). FEMA updated flood maps for San Antonio and Bexar County in July 2023, and additional Concepcion Creek revisions are expected by 2027.
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