FloodRadar
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FloodRadar
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Not in an at-risk area
SN8 4YW has no properties in any Environment Agency recorded flood-risk band. That is good news — but it is area-level and never proof a place cannot flood (surface-water and sewer flooding are assessed separately). See the at-risk postcodes in SN8 or get the full picture below.
Because 2 recorded floods nearby; 95 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around SN8 4YW. 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 |
|---|---|---|
| Jan 1992 | 06SeptemberAutumn1992 | ~0.7 km |
| Jan 1979 | 06MarchWinter1979 | ~0.9 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.
Henk (2024, 6 warnings nearby) · 2013-14 UK winter floods (2013, 4 warnings nearby) · Dennis (2020, 2 warnings nearby) · Chandra (2026, 1 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Marlborough | River Kennet | 0.6 km | 0.63 m | 1.29 m |
| Pewsey | River Avon | 8.5 km | 0.18 m | 0.70 m |
| Winterborne Monkton | River Kennet | 10.2 km | 1.11 m | 2.33 m |
| Draycot Foliat | Groundwater Level | 10.2 km | 160.45 m | 162.97 m |
Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.
| Overflow | Discharges into | Distance | Spills | Hours |
|---|---|---|---|---|
| London Road | Kennet | 0.9 km | 11 (2024) | 59 |
| Marlborough Wwtw | Kennet | 1.4 km | 172 (2024) | 2,786 |
| Fyfield Wastewater Treatment Works | River Kennet | 4.0 km | 44 (2024) | 993 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
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 SN8 4YW — all in the SN8 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. 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 SN8 district.