FloodRadar
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Donhead St Andrew, Wiltshire
Up to High likelihood
Properties in SP7 9EW sit in the Environment Agency's High flood-likelihood band (worst property). The band is the worst found in the postcode — it describes the land around properties (defence-adjusted, rivers & sea), not any single address, and not today's conditions.
| Likelihood band | Annual chance | Properties | Of which homes |
|---|---|---|---|
| High | greater than 3.3% | 1 | 1 |
| Medium | 1% – 3.3% | 0 | 0 |
| Low | 0.1% – 1% | 0 | 0 |
| Very low | below 0.1% | 0 | 0 |
Over a 25-year mortgage, a property in a high-likelihood area has at least a 57% chance of flooding at least once.
The ground here sits at about 113 m above sea level and falls 70 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north-east, 66.0 m higher.
Because properties in the high likelihood band; 1 recorded flood nearby; 30 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around SP7 9EW. The small panels are illustrative previews of the report's per-layer map views — the full report draws each layer for real, plus recorded extents, defences and a building picker on an interactive map.
Warnings cover flood areas, not individual addresses.
| Date | Recorded flood | Approx. distance |
|---|---|---|
| Dec 2013 | Donhead St Andrew_Winter 2013 to 2014 | ~0.8 km |
EA Recorded Flood Outlines — absence of a record never proves a place has not flooded. The full report tests whether any extent covered the exact spot.
Chandra (2026, 3 warnings nearby) · 2013-14 UK winter floods (2013, 3 warnings nearby) · Henk (2024, 2 warnings nearby) · Herminia (2025, 1 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Tisbury | River Nadder | 4.9 km | 0.92 m | 3.43 m |
| Ebbesbourne Wake | River Ebble | 7.1 km | 0.61 m | 1.23 m |
| Ashmore | Groundwater Level | 7.3 km | 136.00 m | 139.65 m |
| Motcombe | Motcombe Stream | 7.4 km | 0.26 m | 1.17 m |
Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.
No mapped flood-defence assets within 500 m of the postcode centre. Defences reduce risk, never remove it.
The interactive flood-risk map with a building picker (your exact house, not the postcode), the 2050s climate view, surface-water and planning flood zones at your building, exact recorded-flood distances, year-by-year warning charts, watercourses including culverted streams, an insurance outlook with the Flood Re rules, and a printable document with every dataset receipt — start with the free preview, unlock for £19.
At-risk postcodes near SP7 9EW — all in the SP7 district.
© Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064. Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0. Recorded Flood Outlines and warning history © Environment Agency copyright and/or database right 2025. Storm-overflow figures: EA Event Duration Monitoring. Flood defences © Environment Agency (OGL v3). This page summarises public area-level data — it is not a flood-risk survey and not a substitute for the official GOV.UK service. All data sources & licences. More postcodes: the SP7 district.