32c8932c-25af-4187-9aa9-d0ed9a7ce03e en utf8 dataset Natural Resources Wales pointOfContact Natural Resources Wales author 2025-12-01T12:31:53Z ISO 19115:2003 - Geographic information - Metadata ISO 19115:2003 4326 EPSG 6.11 inspire-nrw:NRW_TAN15_DEFENDED_ZONES Flood Map for Planning (FMfP) TAN15 Defended Zones 2025-11-28T00:00:00Z publication date mapDigital The Flood Map for Planning supports national planning policy TAN15: Development, flooding and coastal erosion. It shows how climate change will affect flood risk extents over the next century and indicates 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 Flood Map for Planning is used as a screening tool by Local Authorities to understand where further assessment of flooding and coastal erosion may be needed. It also provides useful information to inform site specific flood consequences assessments. The Flood Map for Planning includes a layer called the TAN15 Defended Zone.  This shows areas that benefit from Risk Management Authority managed and maintained flood defences with the following minimum Standard of Protection: 1 in 100 year (present day) for rivers 1 in 200 year (present day) for the sea For flood defences built from 2016 onwards there must be allowance for climate change and design freeboard to be mapped as a TAN15 Defended Zone. Defences constructed before 2016 do not have to include climate change/freeboard to qualify as a TAN15 Defended Zone but still offer a good present day standard of protection. The Standard of Protection represents a best estimate based on the most recent assessment data. In some cases, this may be several years old. You will probably need to re-evaluate this as part of any Flood Consequences Assessment submitted to support a development proposal. Hydraulic modelling may also be required to determine their current standard of protection. TAN15 Defended Zones are created for individual sources of flooding (i.e. rivers or the sea). There are no TAN15 Defended Zones for surface water & small watercourses. TAN15 Defended Zones enable planning authorities to consider development in areas which may otherwise be mapped as Flood Zone 3 / Flood Zone 2 which could limit development opportunities.  They should not be considered automatically suitable for development. The risks and impacts, including a breach assessment must be demonstrated through an FCA to determine whether development can be made flood free and safe over its lifetime. Attribution Statement 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. completed Natural Resources Wales originator ESRI Shapefile 1.0 features flood map for planning tan 15 defended zones theme Global place license Open Government Licence for Public Sector Information (OGL): (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/) en utf8 planningCadastre -5.076060198452421 -2.6644649664515905 51.36653699883478 53.3618857016626 https://datamap.gov.wales WWW:LINK-1.0-http--link Online link to the 'Flood Map for Planning (FMfP) TAN15 Defended Zones' description on GeoNode https://datamap.gov.wales/uploaded/thumbs/layer-32c8932c-25af-4187-9aa9-d0ed9a7ce03e-thumb.png?v=8425b20c WWW:DOWNLOAD-1.0-http--download .png Flood Map for Planning (FMfP) TAN15 Defended Zones (Thumbnail Format) https://datamap.gov.wales/geoserver/ows?service=WMS&request=GetLegendGraphic&format=image/png&WIDTH=20&HEIGHT=20&LAYER=inspire-nrw:NRW_TAN15_DEFENDED_ZONES&STYLE=NRW_TAN15_DEFENDED_ZONES&version=1.3.0&sld_version=1.1.0&legend_options=fontAntiAliasing:true;fontSize:12;forceLabels:on WWW:DOWNLOAD-1.0-http--download .png Flood Map for Planning (FMfP) TAN15 Defended Zones (Legend Format) https://datamap.gov.wales/geoserver/ows?service=WFS&version=1.0.0&request=GetFeature&typename=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&outputFormat=json&srs=EPSG%3A27700&srsName=EPSG%3A27700 WWW:DOWNLOAD-1.0-http--download .json Flood Map for Planning (FMfP) TAN15 Defended Zones (GeoJSON Format) https://datamap.gov.wales/geoserver/ows?service=WFS&version=1.0.0&request=GetFeature&typename=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&outputFormat=excel&srs=EPSG%3A27700 WWW:DOWNLOAD-1.0-http--download .excel Flood Map for Planning (FMfP) TAN15 Defended Zones (Excel Format) https://datamap.gov.wales/geoserver/ows?service=WFS&version=1.0.0&request=GetFeature&typename=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&outputFormat=csv&srs=EPSG%3A27700 WWW:DOWNLOAD-1.0-http--download .csv Flood Map for Planning (FMfP) TAN15 Defended Zones (CSV Format) https://datamap.gov.wales/geoserver/ows?service=WFS&version=1.0.0&request=GetFeature&typename=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&outputFormat=text%2Fxml%3B+subtype%3Dgml%2F3.1.1&srs=EPSG%3A27700 WWW:DOWNLOAD-1.0-http--download .gml Flood Map for Planning (FMfP) TAN15 Defended Zones (GML 3.1.1 Format) https://datamap.gov.wales/geoserver/ows?service=WFS&version=1.0.0&request=GetFeature&typename=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&outputFormat=gml2&srs=EPSG%3A27700 WWW:DOWNLOAD-1.0-http--download .gml Flood Map for Planning (FMfP) TAN15 Defended Zones (GML 2.0 Format) https://datamap.gov.wales/geoserver/ows?service=WFS&version=1.0.0&request=GetFeature&typename=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&outputFormat=dxf&srs=EPSG%3A27700 WWW:DOWNLOAD-1.0-http--download .dxf Flood Map for Planning (FMfP) TAN15 Defended Zones (DXF Format) https://datamap.gov.wales/geoserver/ows?service=WFS&version=1.0.0&request=GetFeature&typename=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&outputFormat=gpkg&srs=EPSG%3A27700 WWW:DOWNLOAD-1.0-http--download .gpkg Flood Map for Planning (FMfP) TAN15 Defended Zones (OGC Geopackage Format) https://datamap.gov.wales/geoserver/ows?service=WFS&version=1.0.0&request=GetFeature&typename=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&outputFormat=SHAPE-ZIP&srs=EPSG%3A27700&format_options=charset%3AUTF-8 WWW:DOWNLOAD-1.0-http--download .zip Flood Map for Planning (FMfP) TAN15 Defended Zones (Zipped Shapefile Format) https://datamap.gov.wales/geoserver/ows?service=WMS&request=GetMap&layers=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&format=image%2Fpng&height=550&width=400&srs=EPSG%3A27700&bbox=195233.999999125%2C167164.274299639%2C353874.12%2C385224.509999747 WWW:DOWNLOAD-1.0-http--download .png Flood Map for Planning (FMfP) TAN15 Defended Zones (PNG Format) https://datamap.gov.wales/geoserver/ows?service=WMS&request=GetMap&layers=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&format=application%2Fpdf&height=550&width=400&srs=EPSG%3A27700&bbox=195233.999999125%2C167164.274299639%2C353874.12%2C385224.509999747 WWW:DOWNLOAD-1.0-http--download .pdf Flood Map for Planning (FMfP) TAN15 Defended Zones (PDF Format) https://datamap.gov.wales/geoserver/ows?service=WMS&request=GetMap&layers=inspire-nrw%3ANRW_TAN15_DEFENDED_ZONES&format=image%2Fjpeg&height=550&width=400&srs=EPSG%3A27700&bbox=195233.999999125%2C167164.274299639%2C353874.12%2C385224.509999747 WWW:DOWNLOAD-1.0-http--download .jpg Flood Map for Planning (FMfP) TAN15 Defended Zones (JPEG Format) https://datamap.gov.wales/download/2065 WWW:DOWNLOAD-1.0-http--download .zip Flood Map for Planning (FMfP) TAN15 Defended Zones (Original dataset Format) https://datamap.gov.wales/geoserver/ows OGC:WFS inspire-nrw:NRW_TAN15_DEFENDED_ZONES Service - Provides Layer: Flood Map for Planning (FMfP) TAN15 Defended Zones https://datamap.gov.wales/geoserver/ows OGC:WMS inspire-nrw:NRW_TAN15_DEFENDED_ZONES Service - Provides Layer: Flood Map for Planning (FMfP) TAN15 Defended Zones dataset