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Trowbridge, Wiltshire
Up to Low likelihood
Properties in BA14 8BE sit in the Environment Agency's Low 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% | 0 | 0 |
| Medium | 1% – 3.3% | 0 | 0 |
| Low | 0.1% – 1% | 4 | 3 |
| Very low | below 0.1% | 0 | 0 |
Over a 25-year mortgage, a property in a low-likelihood area has a 2–22% chance of flooding at least once.
The ground here sits at about 37 m above sea level and falls 18 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north-east, 12.3 m higher.
Because properties in the low likelihood band; 6 recorded floods nearby; 301 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around BA14 8BE. 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 2014 | Flood extent_Winter 2013 to 2014. With amendment.. | ~4.3 km |
| Jan 2014 | This represents flooding in the area in 2014 | ~0.1 km |
| Feb 1990 | This represents flooding in the area in 1990 | ~0.4 km |
| Nov 1982 | This represents flooding in the area in 1982 | ~0.3 km |
| Jan 1980 | This represents flooding in the area in 1980 | ~0.3 km |
| Dec 1979 | EA112_Biss_LadyDown Mill_Trowbridge | ~1.3 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, 10 warnings nearby) · Henk (2024, 10 warnings nearby) · Bert (2024, 9 warnings nearby) · Herminia (2025, 6 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Trowbridge | River Biss | 0.2 km | 1.40 m | 2.10 m |
| Trowbridge Southwick | Lambrok Stream | 3.1 km | 1.00 m | 1.10 m |
| Bradford on Avon | River Avon | 4.9 km | 1.58 m | 3.51 m |
| Tellisford | Somerset Frome | 5.2 km | 3.20 m | 4.16 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 |
|---|---|---|---|---|
| 6 Wicker Hill Cso | River Biss | 0.3 km | 1 (2024) | 0 |
| Polebarn Road Cso | Paxcroft Brook Via Sws | 0.4 km | 0 (2024) | 0 |
| Trowbridge Wastewater Trtmnt Works | F/e-river Avon, Cso-river Biss | 1.0 km | 31 (2024) | 281 |
| Stallard Street Cso | The River Biss Via Sws | 1.0 km | 4 (2024) | 21 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
21 mapped flood-defence assets within 500 m — nearest ~66 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 BA14 8BE — all in the BA14 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 BA14 district.