FloodRadar
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Coxbench, Derbyshire
Up to High likelihood
Properties in DE21 5BB 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% | 2 | 0 |
| 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 67 m above sea level and falls 58 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-west, 36.6 m higher.
Because properties in the high likelihood band; 6 recorded floods nearby; 454 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around DE21 5BB. 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 |
|---|---|---|
| Oct 2023 | Coxbench October 2023 | ~0.1 km |
| Jan 1977 | Bottle Brook 1977 | ~1.1 km |
| Dec 1965 | Derwent December 1965 | ~16.8 km |
| Dec 1965 | 1965 Derwent Duffield & Milford | ~2.3 km |
| Jan 1965 | 1965 Lower Trent - Duffield | ~3.0 km |
| Mar 1947 | Fluvial Trent March 1947 | ~24.9 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.
Babet (2023, 34 warnings nearby) · 2007 UK floods (2007, 12 warnings nearby) · Franklin (2022, 9 warnings nearby) · Elin (2023, 9 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Smithy Houses | Bottle Brook | 3.9 km | 0.90 m | 1.51 m |
| Belper | Coppice Brook | 4.5 km | 0.90 m | 1.44 m |
| Duffield | River Ecclesbourne | 5.1 km | 0.90 m | 2.15 m |
| Derby City | River Derwent | 7.0 km | 1.85 m | 3.58 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 |
|---|---|---|---|---|
| Smalley- Smalley Mill Road (cso) | Park/bottle Brook | 0.1 km | 15 (2024) | 25 |
| Kilburn - Rawson Green 4 (cso) | Park/bottle Brook | 0.1 km | 81 (2024) | 364 |
| Kilburn - Derby Road 211 (cso) | Park/bottle Brook | 0.1 km | 4 (2024) | 6 |
| Horsley Woodhouse - Chestnut Close (cso) | Park/bottle Brook | 0.1 km | 2 (2024) | 0 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
1 mapped flood-defence asset within 500 m — nearest ~381 m (engineered 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 DE21 5BB — all in the DE21 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 DE21 district.