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Accrington, Lancashire
Up to High likelihood
Properties in BB5 1EF 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% | 5 | 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 126 m above sea level and falls 42 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the north-east, 38.3 m higher.
Because properties in the high likelihood band; 5 recorded floods nearby; 150 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around BB5 1EF. 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 2020 | Bold Street | ~0.8 km |
| Feb 2020 | Broad Oak Road | ~1.3 km |
| Feb 2020 | Mount Street. | ~1.0 km |
| Nov 2017 | Black Water Street | ~0.5 km |
| Nov 2017 | Exchange Street | ~1.1 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.
Ciara (2020, 13 warnings nearby) · Bert (2024, 7 warnings nearby) · Brian (2017, 6 warnings nearby) · Christoph (2021, 3 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Milnshaw | River Hyndburn | 0.2 km | 1.10 m | 1.41 m |
| Gorse Street | River Blakewater | 5.7 km | 1.00 m | 1.32 m |
| Dryden Street | Shaw Brook Tributary | 6.0 km | 1.26 m | 1.56 m |
| Padiham Town Centre | River Calder | 6.1 km | 2.57 m | 3.45 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 |
|---|---|---|---|---|
| Melbourne Street/water Street Cso | Culverted Trib River Hyndburn | 0.6 km | 0 (2024) | 0 |
| Grange Lane Cso | Broad Oak Water | 0.9 km | 0 (2024) | 0 |
| Fairfield St/stevenson St East Cso | Culv Section Of Tinker Brook | 1.1 km | 0 (2024) | 0 |
| 20 Ribbleton Drive Cso | Clough Brook | 1.1 km | 13 (2024) | 16 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
12 mapped flood-defence assets within 500 m — nearest ~10 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 BB5 1EF — all in the BB5 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 BB5 district.