Flood Risk Checker by Postcode
Enter a postcode for a summary card built from Environment Agency data, on screen with no signup: the Flood Map for Planning zone (1, 2 or 3) and how close the nearest mapped zone comes, recorded flood history within about 250 m including surface-water events, nearby flood defences with their recorded condition grades, and the peak-river-flow climate allowance for the catchment (2050s where published). England only. Wales and Scotland get the Natural Resources Wales and SEPA link-outs. Reservoir and surface-water risk maps are not screened here; the gov.uk long-term flood risk service covers those. None of this is an insurance decision or a property-level flood assessment.
This check runs on screen, no signup. The full property report is £9.99 Lite / £24.99 Complete. One report, one price, no subscription.
Want the area picture first? Browse flood risk by outcode across England (Environment Agency flood zones, recorded flood history and climate-change river-flow uplift by area), then check the exact address above.
Has this house flooded before?
The card above answers for the postcode area from the Environment Agency's Historic Flood Map and Recorded Flood Outlines. For the exact postcode (which events, which year, and the TA6 question to put to the seller), use the flood history check.
What do the flood zones mean?
Flood Zone 3 is land the Environment Agency assesses as having a 1-in-100 or greater annual chance of river flooding (1-in-200 from the sea), Zone 2 between a 1-in-100 and 1-in-1,000 chance, and Zone 1 everything else. The zones ignore defences, so they describe the land, not a defended street's exposure today. Read what Flood Zone 3 means for a buyer, then browse flood risk by outcode for the area picture.
Choose the flood source for the property's nation
The government flood-risk gateway links to the Environment Agency, Natural Resources Wales and SEPA services. England's long-term service describes an area's potential river, sea, surface-water, reservoir and available groundwater risk. It explicitly does not predict flooding for an individual property or cover every local drainage problem.
Read the result as questions, not a pass or fail
| What you see | What to check next |
|---|---|
| A recorded flood | Ask which part of the property was affected, when, and what repairs followed. |
| A planning flood zone | Read the separate risk and defence information; do not treat the planning category as an insurance quote. |
| No record or unavailable data | Check the national map and the seller's history. Keep the gap visible. |
What a paid desk report adds
Complete (£24.99) puts the available flood records alongside ground stability, energy, sold-price and neighbourhood information. It does not replace an official environmental search, specialist flood assessment or insurer's decision. Choose an address for a report, or start with our flood outcode directory and the ground-stability checker.
Frequently asked questions
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