Check your lot’s flood zone, elevation, and what you can build
Pick your state and enter any US address to see its flood zone, how its ground sits versus the flood line, and (in Florida) its hurricane evacuation zone, then the SeaTop system that fits. Free, no signup.
Data sources & disclaimer
This tool is informational only and is not an official flood zone determination. It is not a substitute for the Standard Flood Hazard Determination Form used by lenders, an elevation certificate, or a survey. Flood data comes from FEMA’s effective National Flood Hazard Layer; for official maps visit FEMA’s Map Service Center, and note that owners can pursue a LOMA/LOMR to amend a designation. Elevation is interpolated from USGS 1-meter lidar and may use a different vertical datum than older FEMA panels, so elevation-vs-flood-line comparisons are approximate. Evacuation zones are an emergency-management designation (Florida Division of Emergency Management), distinct from FEMA flood zones. We do not provide insurance advice; confirm requirements with your lender and insurance agent. Address search © OpenStreetMap contributors.
Got your read? Let's build on it
Send us the address and what you want to build, and our engineers will come back within one business day with the path to permit and build it.
