Flood Zones: Dallas vs Richardson
How do flood zones rules compare between Dallas, TX and Richardson, TX?
Dallas and Richardson have similar restriction levels.
Dallas, TX
Dallas County
Dallas Development Code Chapter 51A, Article V (Floodplain and Escarpment Zone Regulations) regulates development in the 1% annual chance (100-year) floodplain. All residential and commercial development in the regulatory floodplain is reviewed by the city before permits are issued. Property owners may need fill permits and floodplain alteration permits before construction. The ordinance meets or exceeds FEMA NFIP minimum criteria under 44 CFR Part 60.3(d). Dallas participates in the Community Rating System for flood insurance discounts.
View full Dallas rules →Richardson, TX
Dallas County
Richardson Code Chapter 9 (Floodplain Management) regulates development in FEMA-designated flood zones. The city participates in the National Flood Insurance Program (NFIP). Building in floodplains requires elevated structures and special permits.
View full Richardson rules →Key Facts Comparison
| Fact | Dallas | Richardson |
|---|---|---|
| Code Section | Ch. 51A, Art. V (Floodplain Regulations) | Chapter 9 |
| Standard | 1% annual chance (100-year) floodplain | - |
| FEMA Compliance | Meets 44 CFR Part 60.3(d) | - |
| Permits | Fill permit and floodplain alteration permit may be required | - |
| NFIP | Participates in Community Rating System | Participating community |
| Drainage Utility | - | Established 2011-2012 |
| Floodplain Maps | - | floodplains-richardson.opendata.arcgis.com |
Highlighted rows indicate differences between cities.
Dallas FAQ
Can I build in a Dallas floodplain?
Development in the regulatory floodplain requires city review and may need fill permits and floodplain alteration permits under Article V. All construction must meet or exceed FEMA NFIP criteria.
How do I check if my property is in a flood zone?
Contact Dallas Water Utilities Stormwater Operations or check FEMA flood maps. The city reviews all development in the 1% annual chance floodplain before issuing permits.
Richardson FAQ
Is my property in a Richardson flood zone?
Check the city's Floodplain Information portal at floodplains-richardson.opendata.arcgis.com for FEMA flood zone maps.
Can I build in a flood zone in Richardson?
Building in flood zones requires special permits and compliance with Chapter 9 floodplain management regulations including elevation requirements.
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