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Rawtenstall, Lancashire
Up to High likelihood
Properties in BB4 8AR 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% | 1 | 1 |
| 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 210 m above sea level and falls 106 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the west-north-west, 67.0 m higher.
Because properties in the high likelihood band; 6 recorded floods nearby; 107 official warnings since 2006.
The map above shows the real EA rivers & sea likelihood cells around BB4 8AR. 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 | Crawshawbooth | ~0.1 km |
| Oct 2017 | ea013_Crawshawbooth | ~0.3 km |
| Jun 2012 | ea01313_22_June_2012_Crawshawbooth | ~0.2 km |
| Aug 2002 | EA01313_01 August 2002_304BurnleyRoad | ~1.0 km |
| Jun 2002 | FOLC | ~0.2 km |
| Jul 1999 | FOLC | ~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.
Ciara (2020, 16 warnings nearby) · Brian (2017, 11 warnings nearby) · Bert (2024, 10 warnings nearby) · Darragh (2024, 7 warnings nearby)
| Gauge | River | Distance | Typical high | Highest on record |
|---|---|---|---|---|
| Rawtenstall | Limey Water | 1.9 km | 1.70 m | 1.62 m |
| Holt Mill Bridge | River Irwell | 3.9 km | 1.20 m | 1.86 m |
| Thornfield Avenue | Whitewell Brook | 4.0 km | 1.09 m | 1.94 m |
| Little Bridge | Ogden Brook | 5.2 km | 2.10 m | 1.74 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 |
|---|---|---|---|---|
| Rushbed Sso | Limy Water | 0.4 km | 24 (2024) | 104 |
| Burnley Rd/middlegate Cso | Limy Water Trib Of Irwell | 0.9 km | 0 (2024) | 0 |
| Bank St Combined Sewer Overflow | Limy Water Trib Of R Irwell | 2.4 km | 36 (2024) | 155 |
| Carr Mill Street Cso | Clvrt'd Section Swinnel Brook | 2.6 km | 34 (2024) | 178 |
Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.
30 mapped flood-defence assets within 500 m — nearest ~40 m (natural high ground, wall, 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 BB4 8AR — all in the BB4 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 BB4 district.