Open Flood Risk by Postcode

Open Flood Risk by Postcode

English postcodes and the Environment Agency's risk level for the area that postcode falls within.

Fields

• postcode
• FID
• PROB_4BAND
• SUITABILITY
• PUB_DATE
• RISK_FOR_INSURANCE_SOP
• easting
• northing
• latitude
• longitude

Risk levels

Possible values for PROB_4BAND

• High
• Medium
• Low
• Very Low
• None

Methodology

The position of the postcode is determined using a point location from Open Postcode Geo. This point location places the postcode in the corresponding area within Risk of Flooding from Rivers and Sea and the risk level (PROB_4BAND) is linked to the postcode. This allows flood risk level to be looked up by postcode.

Note that properties within the postcode may have a slightly different point location and thus be located in a different area with a different risk level. Generally speaking the point location of the postcode is determined by the point location of the centremost property in that postcode.

Documentation

Full documentation can be found on the Open Flood Risk by Postcode homepage.

• Example application: Flood Maps by Postcode
• Example postcode: SW18 4BX Flood Map

Acknowledgements

Derived from the Environment Agency's Risk of Flooding from Rivers and Sea open dataset.

Postcode data: Open Postcode Geo

Licensed under the OGL (attribution required).

Attribution statements

• Contains OS data © Crown copyright and database right (2017)
• Contains Royal Mail data © Royal Mail copyright and Database right (2017)
• Contains National Statistics data © Crown copyright and database right (2017)
• Contains Environment Agency data licensed under the Open Government Licence v3.0