dataset · Wales
Flood Map for Planning Flood Zones 2 and 3
The Flood Map for Planning (FMfP) includes climate change information to show how this will affect flood risk extents for rivers, the sea and surface water and small watercourses over the next century. It shows the potential extent of flooding assuming no defences are in place. It also indicates areas at risk from coastal erosion, areas that have flooded in the past and key information on the location of flood defence infrastructure. The FMfP can be considered as the best available information o
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Licence: ["There are no access restrictions on this data. NRW may release, publish or disseminate it freely.", "\u00a9 CNC/NRW and UKCEH. Data may be re-used under the terms of the Open Government Licence prov
Evidence quality: 58.9
Listed in data.gov.uk public catalogue API on 2026-10-16; relevance/value screened (haiku).
Metadata checked: 2026-10-14T13:20:00.000Z
What's in it
- Data offered docs-verified
- Flood Zone 2 and Flood Zone 3 extents (undefended) for rivers, sea, and surface water and small watercourses · Climate change allowance applied to flood extents · Coastal erosion risk areas · Areas that have flooded in the past · Location of flood defence infrastructure
- Coverage llm-inferred
- Wales (bounding box 51.24° to 53.51° N, 5.78° to 2.61° W) · Present day to the next century, with climate change allowance
- Update frequency docs-verified
- biannually
- Formats docs-verified
- WMS
- Access docs-verified
- Free and open, no access restrictions; re-use under the Open Government Licence (per entry licence)
Useful for
- Use cases llm-inferred
- Flood zone screening of development sites against Flood Zones 2 and 3 for FRA scoping · Climate-change flood extent overlay for long-life infrastructure and drainage option appraisal · Coastal erosion and flood defence location context for civils route or site selection · Planning-stage flood risk context for Welsh sites, used alongside the Development Advice Map
- Audience llm-inferred
- flood risk consultants · hydrologists · planners · drainage engineers · GIS analysts
Limitations
- Constraints llm-inferred
- Undefended extents only; assumes no flood defences are in place · No official planning status yet; TAN 15 implementation and the Flood Map for Planning have been suspended · Wales only · Download format is not stated in the docs; only WMS is confirmed · Updates are biannual, not real time
Evidence
- https://flood-map-for-planning.naturalresources.wales/
- https://www.data.gov.uk/dataset/1e91e555-f63d-4c32-828c-282f1246b6c1/flood-map-for-planning-flood-zones-2-and-32
Check upstream coverage, uncertainty and licence before use. Station observations are not forecasts or design levels.