Midland County, TX Environmental Rules: Flood Elevation Requirements (2026)

4 requires anyone holding a floodplain permit to prove where the structure's lowest floor actually sits relative to the water surface FEMA maps for a 1% annual chance flood. If the lot falls within the SFHA or within the Additional Regulatory Flood Study (ARFS) 1% limits and the flood depth reaches one foot or greater, the developer must provide the lowest floor elevation after the concrete has been poured but before framing starts, so the county can check compliance while correction is still possible. That elevation cannot be self-reported: it must come from a registered land surveyor, a registered professional engineer, or a registered architect, and FEMA requires the number to appear on the current elevation certificate form.

' Plats covering land in the SFHA must also carry a printed notice, required under the Article 2 plat-content list, that no building may be built there unless it complies with the minimum finished floor elevation requirements, tying the recorded plat itself to this certification step. The application for a floodplain determination must be filed before any construction activity begins, or at the time of plat application, whichever comes first, on forms supplied by the Floodplain Administrator (432-688-4310); the Regulations note that even a landowner not subdividing into two or more parts still has to make this application if the site sits in mapped flood hazard.