Up to High likelihood
Properties in WR11 8SN 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% | 2 | 1 |
| Low | 0.1% – 1% | 2 | 2 |
| 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.
WR11 8SN gets about 665 mm of rain a year on average (wettest month October, 71 mm; driest February, 41 mm). That is 43% drier than the UK as a whole, which averages 1,163 mm a year.
A thirty-year average for the surrounding area, not a measurement at this address and not a flood risk on its own: a dry area floods when a storm sits over it, and a wet one may drain away perfectly well. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.4 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
The ground here sits at about 50 m above sea level and falls 10 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the west, 5.2 m higher.
The river map has no watercourse within 1 km of the centre of WR11 8SN.
That means this spot is not on the river map, not that there is no water here: Ordnance Survey’s river map (OS Open Rivers) leaves out small streams, ditches and culverts. Contains OS data © Crown copyright and database rights 2026.
Because properties in the high likelihood band; 6 recorded flood outlines mapped nearby; 156 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around WR11 8SN. 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 | Mapped flood extent | Approx. distance |
|---|---|---|
| Jul 2007 | River Avon 001 2007 | ~6.8 km |
| Jul 2007 | Salford_Priors_07_2007 | ~2.3 km |
| Apr 1998 | Stratford Upon Avon | ~6.0 km |
| Apr 1998 | April 1998 (Lower Severn) | ~6.0 km |
| Jan 1985 | M_LS_Jan_1985 | ~8.2 km |
| Jan 1985 | 1985 (Lower Severn) | ~5.4 km |
These are extents the Environment Agency has mapped, not a list of every flood. Records, not floods: no outline on the record is not evidence a place has not flooded. The full report tests whether any extent covered the exact spot.
2013-14 UK winter floods (2013, 9 warnings nearby) ▶ replay it here · Henk (2024, 6 warnings nearby) ▶ replay it here · Dennis (2020, 3 warnings nearby) ▶ replay it here · Babet (2023, 3 warnings nearby) ▶ replay it here
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Broom | River Arrow | 3.9 km | 0.49 m | 3.22 m |
| Bidford on Avon | River Avon | 4.4 km | 2.60 m | 4.43 m |
| Offenham | Badsey Brook | 6.6 km | 1.11 m | 3.65 m |
| Evesham | River Avon | 7.6 km | 1.90 m | 5.52 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 |
|---|---|---|---|---|
| Station Road Cso | Tributary Of Ban Brook | 2.2 km | 35 (2024) | 153 |
| Bidford On Avon Stw | River Arrow | 2.8 km | 192 (2024) | 3,039 |
| Harvington Stw | Harvington Brook | 2.8 km | 8 (2024) | 52 |
| Quarry Lane Pumping Station | Tributary Of Littleton Brook | 3.8 km | 17 (2024) | 164 |
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 WR11 8SN — all in the WR11 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 (England); live overflow status © the water companies, incl. Dŵr Cymru Welsh Water and Scottish Water. 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 WR11 district.