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 on flood risk and will replace the Development Advice Map for planning purposes when the Welsh Government implements the revised TAN15. Although it currently has no official status for planning purposes it is a useful data source when considering flood risks.
The coming into force of the new TAN 15 and the Flood Map for Planning has been suspended due to a further consultation on the TAN.
Technical advice note (TAN) 15: development, flooding and coastal erosion - https://www.gov.wales/technical-advice-note-tan-15-development-flooding-and-coastal-erosion
The Flood Zones within the FMfP shows the undefended risk of flooding from Rivers, the Sea and from Surface Water & Small Watercourses.
Flood Zone 3 displays the extent of flooding from:
• rivers with a 1% (1 in 100) chance or greater of happening in any given year, including an allowance for climate change.
• the sea with a 0.5% (1 in 200) chance or greater of happening in any given year, including an allowance for climate change.
• Surface water & small watercourses with a 1% (1 in 100) chance or greater of happening in any given year, including an allowance for climate change.
Flood Zone 2 displays the extent of flooding from:
• Rivers with less than 1% (1 in 100) but greater than or equal to 0.1% (1 in 1,000) chance of happening in any given year, including an allowance for climate change.
• the Sea with less than 0.5% (1 in 200) but greater than or equal to 0.1% (1 in 1,000) chance of flooding in any given year, including an allowance for climate change.
• Surface water & small watercourses with less than 1% (1 in 100) but greater than or equal to 0.1% (1 in 1,000) chance of happening in any given year, including an allowance for climate change.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS125076
- Alternative Title
-
- FMfP Flood Zones 2 and 3
- Metadata Language
- English
- Lineage
-
The FMfP is displayed in two parts, a Basic View and a Detailed View. In the Basic View the risk of flooding from Rivers and the Sea is shown as a merged layer. In the Detailed View flood risk is separated into individual sources. In both views, Flood Zones for Surface Water & Small Watercourses are shown separately.
- Additional Information
-
More information about the national-scale modelling created as part of the FRAW project is available. Information on the local model data incorporated to the Flood Zones is available from the relevant Flood Risk Analysis teams.
- Dataset Reference Date (Publication)
- 2026-05-21
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
Distribution
- Format Type and Description
-
-
Geographic Information System
(
Unknown
)
- Specification
-
ESRI Feature Class
-
Geographic Information System
(
Unknown
)
- Resource Locator
- View Data: NRW Flood Map for Planning Viewer ( WWW:LINK-1.0-http--link )
- Resource Locator
- Download Data & Web Services ( WWW:LINK-1.0-http--link )
- Resource Locator
- Web Mapping Service ( OGC:WMS )
Quality
Data quality
- Quality Scope
- Dataset
- Conformity
- Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Explanation
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Degree
- false
- Lineage
-
The FMfP is displayed in two parts, a Basic View and a Detailed View. In the Basic View the risk of flooding from Rivers and the Sea is shown as a merged layer. In the Detailed View flood risk is separated into individual sources. In both views, Flood Zones for Surface Water & Small Watercourses are shown separately.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
-
NRW Thesaurus
-
- flood modelling
- flood risk
- Type
- Theme
Citation
- Date (Publication)
- 2026-03-04
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
-
There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
-
© CNC/NRW and UKCEH. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Attribution Statement
- Other constraints
-
Contains Natural Resources Wales information © Natural Resources Wales and database right. All rights reserved. Some features of this information are based on digital spatial data licensed from the UK Centre for Ecology & Hydrology © UKCEH. Defra, Met Office and DARD Rivers Agency © Crown copyright. © Cranfield University. © James Hutton Institute. Contains OS data © Crown copyright and database right.
Licence
- Other constraints
- Open Government Licence
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313235303736 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2026-06-01T14:19:31.404Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0