Data source
Flood Maps
Published by SEPA (Scottish Environment Protection Agency). For a postcode in Scotland, whether its centre is in a mapped flood area from rivers, the sea or surface water, and at what likelihood.
The copy we hold
- CoversScotland
- Our copyAsked when a page is opened, and kept for up to 30 days
- How oftenAsked when a page is opened, and kept for up to 30 days
- LicenceOpen Government Licence v3.0
How we use it
SEPA publishes its flood maps as a map service, one layer for each source (rivers, the sea, surface water and small watercourses) and each likelihood: high, a flood about once in 10 years on average (a 10% chance each year); medium, about once in 200 years (0.5%); low, about once in 1,000 years (0.1%). When a Scottish postcode page is opened, we ask which of them its centre point is inside, and keep the answer for up to 30 days. It is for the centre of the postcode, not each address, and the maps show a long-term chance, not a forecast. SEPA's own maps answer for any address.
Open the original from the publisherWhere it is on this site
The credit it asks for
©SEPA 2025; this SEPA product is licensed under the Open Government Licence version 3.0.
It is published under the Open Government Licence v3.0.
Each page that shows it gives this line beside the figures, in the line that names the source, linked here.
Something wrong?
If a figure from this source looks wrong on any page, report it and we will check it against the original.
All our sources