FloodRadar
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Up to High likelihood
Properties in SP11 0BB 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% | 4 | 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 100 m above sea level and falls 50 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north-north-east, 32.8 m higher.
Because properties in the high likelihood band; 6 recorded floods nearby; 146 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around SP11 0BB. 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 |
|---|---|---|
| Feb 2014 | River Test Aerial Photography | ~7.5 km |
| Feb 2014 | Hurstbourne Tarrant, Winter 13/14 | ~0.2 km |
| Dec 2002 | Winter 2002/03gw_Bourne Rivulet_Aerial(21) | ~1.3 km |
| Dec 2002 | Winter 2002/03gw_Bourne Rivulet_Aerial(190) | ~0.7 km |
| Dec 2002 | Winter 2002/03gw_Bourne Rivulet_Aerial(167) | ~0.1 km |
| Dec 2002 | Winter 2002/03gw_Bourne Rivulet_Aerial(164) | ~0.4 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, 23 warnings nearby) · Henk (2024, 4 warnings nearby) · Gerrit (2023, 2 warnings nearby) · Jocelyn (2024, 2 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| St Mary Bourne | Bourne Rivulet | 4.9 km | 78.60 m | 78.89 m |
| Andover Town Mill | River Anton | 8.0 km | 57.15 m | 57.36 m |
| Hurstbourne Priors | Bourne Rivulet | 9.2 km | 0.88 m | 0.88 m |
| Whitchurch Side | River Test | 9.6 km | 0.40 m | 0.43 m |
Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.
10 mapped flood-defence assets within 500 m — nearest ~58 m (natural high ground, wall). 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 SP11 0BB — all in the SP11 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 SP11 district.