FloodRadar
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Derby, City of Derby
Up to Medium likelihood
Properties in DE21 7BH sit in the Environment Agency's Medium 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% | 12 | 0 |
| Low | 0.1% – 1% | 0 | 0 |
| Very low | below 0.1% | 0 | 0 |
Over a 25-year mortgage, a property in a medium-likelihood area has a 22–57% chance of flooding at least once.
The ground here sits at about 42 m above sea level and falls 12 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-south-east, 8.8 m higher.
Because properties in the medium likelihood band; 4 recorded floods nearby; 634 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around DE21 7BH. 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 |
|---|---|---|
| Nov 2000 | Lower Trent 8 Nov 2000 | ~7.5 km |
| Nov 2000 | Derwent 7th Nov 2000 | ~3.9 km |
| Feb 1977 | February 1977 (Lower Trent) | ~3.5 km |
| Dec 1965 | Derwent December 1965 | ~26.3 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.
Babet (2023, 36 warnings nearby) · 2007 UK floods (2007, 21 warnings nearby) · Henk (2024, 15 warnings nearby) · Dennis (2020, 11 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Derby City | River Derwent | 4.2 km | 1.85 m | 3.58 m |
| Derby Bridge Street | Markeaton Brook | 4.8 km | 1.35 m | 1.94 m |
| Church Wilne | River Derwent | 6.0 km | 1.60 m | 2.53 m |
| Breaston | Golden Brook | 7.1 km | 1.50 m | 1.85 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 |
|---|---|---|---|---|
| Alvaston Cso | River Derwent | 0.2 km | 64 (2024) | 436 |
| Derby Sewage Treatment Works | River Derwent | 0.9 km | 72 (2024) | 827 |
| Derby Road Cso | River Derwent | 0.9 km | 48 (2024) | 129 |
| Wilmorton College/harrow Street Cso | River Derwent | 1.2 km | 0 (2024) | 0 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
8 mapped flood-defence assets within 500 m — nearest ~263 m (embankment, bridge abutment). 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 7BH — 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.