Where the data comes from
Everything on this site comes from open Environment Agency data and one postcode lookup. None of it is ours, all of it is free, and it is credited here as its licence requires.
The datasets we use
Each map is read live for the point you check. We do not keep a copy of the maps; we keep the answer for seven days so that neighbours share it.
| Dataset | Published by | Licence | Where to find it |
|---|---|---|---|
| Flood Map for Planning (Flood Zones 2 and 3) | Environment Agency | OGL v3 | Source |
| Risk of Flooding from Rivers and Sea | Environment Agency | OGL v3 | Source |
| Risk of Flooding from Surface Water | Environment Agency | OGL v3 | Source |
| Historic Flood Map | Environment Agency | OGL v3 | Source |
| Recorded Flood Outlines | Environment Agency | OGL v3 | Source |
| Real-time flood-monitoring API | Environment Agency | OGL v3 | Source |
| Postcode lookup | postcodes.io, built on the ONS Postcode Directory | OGL v3 | Source |
The postcode lookup is a service of postcodes.io and is built on the ONS Postcode Directory. The Environment Agency layers are read through its public map and monitoring services.
Attribution
Contains public sector information licensed under the Open Government Licence v3.0. Contains Environment Agency information © Environment Agency and/or database rights.
The Open Government Licence v3.0 allows commercial reuse provided the source is acknowledged. That is what the line above is for, and why it appears in the footer of every page and in every report we sell. The full licence text is published by The National Archives.
We are not affiliated with the Environment Agency, the Office for National Statistics or any local authority, and nothing on this site is an official record. For the official flood map and the long-term flood risk service, see GOV.UK.
If you think a map is wrong at your property, the mistake is in the source and we cannot change it. Report it to the Environment Agency, and tell us as well through the contact form.