Tarrant County, TX Environmental Rules: Flood Zones (2026)
FEMA flood zone rules in Tarrant County, TX, also called floodplain regulations or special flood hazard area (SFHA) rules, determine flood insurance requirements and elevation standards for new construction.
Key Facts
- Minimum
- Tarrant County Floodplain Administrator reviews SFHA development
- Minimum
- Minimum 1 foot freeboard above base flood elevation (unincorporated)
- Substantial Improvement
- Substantial improvement (50% of value) triggers full code compliance
- Animals
- No-rise certification needed for floodway development
- Minimum
- Incorporated cities administer own NFIP with stricter rules (often 2 ft freeboard)
Summary
Tarrant County participates in the NFIP. Development in Special Flood Hazard Areas in unincorporated land requires a floodplain permit from the Tarrant County Floodplain Administrator, with 1 foot of freeboard typical.
FEMA Flood Map Service Center: Welcome! [...] About Flood Map Service Center: The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard information produced in support of the National Flood Insurance Program (NFIP). Use the MSC to find your official flood map, access a range of other flood hazard products, and take advantage of tools for better understanding flood risk. FEMA flood maps are continually updated through a variety of processes. Effective information that you download or print from this site may change or become superseded by new maps over time.
Full Breakdown
Tarrant County is subject to significant flood risk along the Trinity River, West Fork of the Trinity, Clear Fork, Big Fossil Creek, Mary's Creek, Sycamore Creek, and numerous smaller streams. The county participates in FEMA's National Flood Insurance Program (NFIP) and administers floodplain development in unincorporated areas through the Tarrant County Floodplain Administrator within Public Works. FEMA Flood Insurance Rate Maps (FIRMs) for Tarrant County identify Special Flood Hazard Areas (SFHAs, Zones A and AE) and floodways. Any development in the SFHA including new construction, substantial improvement (50% of market value), fill, excavation, and grading requires a floodplain development permit.
New residential structures must have the lowest floor (including basement) elevated to or above the base flood elevation plus freeboard; Tarrant County typically requires 1 foot of freeboard. Non-residential structures may be floodproofed instead. The floodway is more restrictive: no development that would increase base flood elevations by any amount is allowed unless a no-rise certification is prepared by a Texas-licensed engineer. Substantial improvement triggers full code compliance and elevation even for older structures. , Fort Worth and Arlington typically require 2 feet).
Violations & Fines
Building in the SFHA without a floodplain development permit is a violation of Tarrant County floodplain regulations and 44 CFR Part 60 NFIP minimum standards. Penalties can include stop-work orders, required removal of improvements, civil fines, and loss of flood insurance coverage. Substantial non-compliance by the county or city risks NFIP suspension, which would eliminate subsidized flood insurance for all residents.
Frequently Asked Questions
How do I know if my Tarrant County property is in a flood zone?
Can I build in the floodway?
Sources & Official References
Other rules in Tarrant County
Texas rules heatmap·Compare Tarrant County to another location·View the Texas environmental rules overview
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