Detailed data list

Created: 31 October 2024 Updated: 17 September 2025

The Environment Agency has published new national risk information for flooding and coastal erosion. 

Below we list the datasets we have published on the Defra DSP (Data Services Platform). Some of the datasets are also available to view on ‘Check Your Long-Term Flood Risk’, ‘Flood Map for Planning’, and ‘Shoreline Management Plan Explorer’. 

Flood risk on ‘Check Your Long-Term Flood Risk’ (CYLTFR)

• Risk of Flooding from Rivers and Sea

• Risk of Flooding from Rivers and Sea - Climate Change 1

• Risk of Flooding from Surface Water

• Risk of Flooding from Surface Water - Climate Change 1

• Reservoir Flood Extents - Dry Day (National)

• Reservoir Flood Extents - Wet Day (National)

‘Risk of flooding from rivers and sea’ (RoFRS) and ‘Risk of flooding from surface water’ (RoFSW) datasets include both extents and depth bands.

Depth bands are provided in separate layers showing the risk of exceeding the following thresholds: 20cm, 30cm, 60cm, 90cm, 120cm. Flooding extents are equivalent to the risk of exceeding 0cm depth.

The 120cm depth band is not presented on CYLTFR. The 90cm depth band is visible on the CYLTFR technical map but not on the results page.  

Flood risk on ‘Flood Map for Planning’ (FMfP)

• Flood Map for Planning - Flood Zones

• Flood Map for Planning - Flood Zones plus Climate Change

• Risk of Flooding from Surface Water

For ‘Risk of flooding from surface water’ (RoFSW) on FMfP, only the extents are used. RoFSW depth bands are unsuitable for use in the planning process. In the RoFSW dataset, flooding extents are equivalent to the risk of exceeding 0cm depth.

There are additional map features on Flood Map for Planning, including Water Storage Areas, Flood Defences and Statutory Main Rivers.

Additional flood risk datasets on Defra Data Services Platform (DSP)

We publish additional flood risk datasets on the DSP that are not presented on CYLTFR or FMfP.

We publish supporting rivers and sea flood risk extents:

• Rivers and Sea defended and undefended flood risk extents – Present day

• Rivers and Sea defended and undefended flood risk extents – Climate change 

• Rivers and Sea 3.3% defended flood risk extents – Present day

• Rivers and Sea 3.3% defended flood risk extents – Climate change

These datasets were published on Flood Map for Planning  in March 2025. In August 2025, we replaced these datasets with the new ‘Flood Zones plus Climate Change’ dataset.

The layers remain available on the DSP, however the dataset names have been updated (previously with ‘Flood Map for Planning’ in the titles). Existing data feeds will continue to work and do not need updating.

We also publish additional datasets for ‘Risk of flooding from surface water’:

• Risk of Flooding from Surface Water – Speed

• Risk of Flooding from Surface Water – Hazard

• Risk of Flooding from Surface Water – Model Origin

• Risk of Flooding from Surface Water – Speed – Climate Change 1

• Risk of Flooding from Surface Water – Hazard – Climate Change 1

Speed layers show the risk of flooding exceeding the following thresholds: 0m/s (i.e. flooding extent), 0.25m/s, 0.5m/s, 1m/s and 2m/s.

Hazard layers show the risk of flooding exceeding the following thresholds: 0 (i.e. flooding extent), 0.25, 0.5, 0.75, 1.25 and 2.

The model origin layer shows which flood risk model has been used in each location, whether national scale modelling or a detailed local model. It applies to the RoFSW present-day datasets.

Alongside our spatial datasets, we also provide counts of properties and postcodes in areas at risk, and key summary statistics by geographical boundaries. These can be found here:

• Risk of Flooding from Rivers and Sea - Key Summary Information

• Risk of Flooding from Rivers and Sea - Properties in Areas at Risk

• Risk of Flooding from Rivers and Sea - Postcodes in Areas at Risk

• Risk of Flooding from Surface Water - Key Summary Information

We have not published statistics for climate change or depth of flooding. This is because these statistics are not available in all locations.

 Coastal erosion risk on ‘Shoreline Management Plan Explorer’

• Shoreline Management Plan Mapping

• National Coastal Erosion Risk Mapping (NCERM) - National (2024)

NCERM shows projected areas at risk from erosion for two periods (Medium Term up to 2055 and Long Term up to 2105) and three climate scenarios (present-day, Higher Central and Upper End).

The present-day scenario uses the historical erosion rates and extrapolates future projections from them without calculating any additional impacts of climate change and rising sea levels. The year 2020 is taken as the baseline year for the erosion projections.  

Erosion risk zones are shown for two management scenarios: 

• No Future Intervention - if there was no future work to maintain or build coastal defences, therefore allowing them to fail over time and erosion to occur. 

• With Shoreline Management Plans Delivered - if the current intention to manage the coastline is followed.

We also show coastal locations at risk of ground instability. These were previously referred to as ‘complex cliffs’ in NCERM. 

Alongside our spatial datasets, we also provide counts of properties in areas of risk as key summary statistics by geographical boundaries. These can be found here: National Coastal Erosion Risk Mapping (NCERM) - Key Summary Information