Open Flood Risk by Postcode

Description

Open Flood Risk by Postcode combines the Environment Agency's Risk of Flooding from Rivers and Sea with English postcodes from Open Postcode Geo. Each postcode is supplemented with the information from the flood risk area in which it is located. Postcodes are treated as a single point in space, allowing for the postcode to be looked up and the flood risk determined for that point. Note the value of SUITABILITY for a given area for how suitable the risk level is for a given purpose.

Important: We have taken a single point within the postcode and identified the flood risk area which that point falls within. There maybe other points within the postcode which fall into a different area, and hence have a different risk level.

Licence

Free to use for any purpose - attribution required.

Download

Download

Filename: open_flood_risk_by_postcode.csv.zip

Regional Extracts

Extracts are available for the below regions:

Version

February 2016

Fields

Field Possible Values Comments
postcode [outcode][space][incode] Standard UK postcode.
FID int
NULL
The Environment Agency's ID for this area.
PROB_4BAND High
Medium
Low
Very Low
None
Likelihood of flooding. See descriptions below.
SUITABILITY National to County
County to Town
Town to Street
Street to Parcels of land
Property (inc. internal)
NULL
Scale at which it is suitable to use the likelihood information. See descriptions below.
PUB_DATE YYYY-MM-DD
NULL
Date (financial quarter) of publication
RISK_FOR_INSURANCE_SOP Yes
No
NULL
Yes where the chance of flooding in any year is greater than or equal to 1 in 75 (1.3%), and hence fall within the category of significant risk as defined in the Statement of Principles; an agreement between the Association of British Insurers and the Government.
easting int Along with northing defines the point within the postcode used to match a flood risk area.
northing int Along with easting defines the point within the postcode used to match a flood risk area.
latitude decimal Along with longitude defines the point within the postcode used to match a flood risk area.
longitude decimal Along with latitude defines the point within the postcode used to match a flood risk area.

Description of PROB_4BAND values

PROB_4BAND Description
High
Each year, there is a chance of flooding of greater than 1 in 30 (3.3%).
Medium
Each year, there is a chance of flooding of between 1 in 30 (3.3%) and 1 in 100 (1%).
Low
Each year, there is a chance of flooding of between 1 in 100 (1%) and 1 in 1000 (0.1%).
Very Low
Each year, there is a chance of flooding of less than 1 in 1000 (0.1%).
None
This value is added by GetTheData to indicate a postcode which is not in a flood risk area.

Source: Risk of Flooding from Rivers and Sea - Product Description.

Description of SUITABILITY values

SUITABILITY Description
National to County Suitable for identifying which parts of countries or counties are at risk, or which countries or counties have the most risk.
County to Town Suitable for identifying which parts of counties or towns are at risk, or which counties or towns have the most risk.
Town to Street Suitable for identifying which parts of towns or streets are at risk, or which towns or streets have the most risk.
Street to Parcels of land Suitable for identifying which parts of streets or parcels of land are at risk, or which streets or parcels of land have the most risk.
Property (inc. internal) Suitable for identifying which parts of a property are at risk (including internal / external distinction), or which properties have the most risk.

Source: Risk of Flooding from Rivers and Sea - Product Description.

View and search the data

We have built a reference application which allows you to search or drilldown to flood maps by postcode and plots postcode data on the map:

Screenshot: Flood Map by Postcode

➜ Click here to access the Flood Map by Postcode application

See also

The Environment Agency's documentation for this product: Risk of Flooding from Rivers and Sea - Product Description.