Up to High likelihood
Properties in OX18 2EW 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% | 15 | 4 |
| 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 66 m above sea level and falls 4 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-west, 3.5 m higher.
Because properties in the high likelihood band; 4 recorded floods nearby; 150 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around OX18 2EW. 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 2008 | Grafton and Radcot CP_Fluvial Water | ~2.2 km |
| Jul 2007 | Bampton CP_Fluvial Water | ~0.0 km |
| Jan 1992 | 06SeptemberAutumn1992 | ~1.4 km |
| Jan 1977 | 06AugustSummer1977 | ~1.6 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.
2013-14 UK winter floods (2013, 13 warnings nearby) · Bert (2024, 5 warnings nearby) · Bram (2025, 2 warnings nearby) · Conall (2024, 2 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Bampton | Shill Brook | 1.7 km | 1.06 m | 2.17 m |
| Clanfield | Clanfield Brook | 4.2 km | 1.03 m | 2.15 m |
| Newbridge GS | River Windrush | 7.5 km | 3.77 m | 4.35 m |
| Witney | River Windrush | 8.8 km | 1.40 m | 2.45 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 |
|---|---|---|---|---|
| Bampton Wastewater Treatment Works | Shill Brook | 0.8 km | 160 (2024) | 1,957 |
| Clanfield Wwtw | Halfacre Brook | 3.7 km | 172 (2024) | 3,402 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
4 mapped flood-defence assets within 500 m — nearest ~375 m (natural high ground). 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 OX18 2EW — all in the OX18 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 OX18 district.