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Does BB3 1EJ flood?

Darwen, Blackburn with Darwen

Up to High likelihood

Properties in BB3 1EJ 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 bandAnnual chancePropertiesOf which homes
Highgreater than 3.3%4218
Medium1% – 3.3%00
Low0.1% – 1%10
Very lowbelow 0.1%00

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 around BB3 1EJ

The ground here sits at about 140 m above sea level and falls 61 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-west, 54.8 m higher.

Shaded relief map of the ground around BB31EJ, computed from Environment Agency LiDAR. The ground here sits at about 140 m above sea level and falls 61 m across the surrounding 800 m. Surface water reaching this point runs off ground lying to the south-west, 54.8 m higher.
Shaded relief of the bare ground within about 400 m of BB3 1EJ, computed from the Environment Agency's published LiDAR terrain survey. The ring marks the postcode centre, not a property. This shows the shape of the land, not a flood map — it does not include drains, culverts, walls or kerbs, and the official likelihood band above is the authoritative figure. © Environment Agency copyright and/or database right 2022. All rights reserved.
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Get the full flood report for BB3 1EJ — £19 Free preview first · instant access · no account needed The detail below — flood history, warnings, rivers, overflows — is part of FloodRadar's property flood-risk report. The official band above is free; the preview shows more before you decide.

Inside the full report for BB3 1EJ

FloodRadarProperty Flood-Risk Report
BB3 1EJ
Elevated flood risk — professional assessment recommended

Because properties in the high likelihood band; 4 recorded floods nearby; 13 official warnings since 2006.

E Today — indicative grade (A best → E)
··· By the 2050s — EA climate scenario (in the full report)
⚑ Official warning within 10 km: Yes ⚑ Recorded flood nearby: Yes ⚑ Flood defences within 500 m: Yes ⚑ In flood zone 2 or 3: ···
Rivers & sea
Up to High
Surface water
···
Groundwater
Not assessed
Historic flooding
Recorded nearby
Warning history · flood map with building picker · 2050s view · insurance outlook · every dataset receipt — 18 sections

Flood-risk map of this area

Environment Agency flood-likelihood cells
High (>3.3%/yr) Medium Low Very low Marker = postcode centre Base map © OpenStreetMap contributors

The map above shows the real EA rivers & sea likelihood cells around BB3 1EJ. 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.

Official flood warnings near BB3 1EJ

13
flood alerts & warnings within 10 km since 2012
13
of them full flood warnings or severe warnings
2025
most recent warning nearby (2025-09-20)

Warnings cover flood areas, not individual addresses.

Recorded floods near this postcode

DateRecorded floodApprox. distance
Oct 2017 River Darwen 21st October 2017 ~0.0 km
Dec 2015 Birch Hall Avenue, Darwen ~1.0 km
Jun 2012 Darwen - June 2012 ~0.0 km
Jun 2002 DARW ~0.6 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.

Named storms that brought flooding here

Bert (2024, 2 warnings nearby) · Franklin (2022, 1 warnings nearby) · Francis (2020, 1 warnings nearby) · Ciara (2020, 1 warnings nearby)

The rivers that matter for BB3 1EJ

GaugeRiverDistanceTypical highHighest on record
Hardman Way River Darwen 1.2 km 1.13 m 0.80 m
Darwen Clough Street Overflow River Darwen 2.6 km 1.20 m 1.35 m
Ewood Ashville Terrace South Ewood Mill Race 2.7 km 1.40 m 0.86 m
Ewood Ashville Terrace North Ewood Mill Race 2.7 km 1.40 m 0.51 m

Live levels, predictions and rain-response behaviour are on each gauge's page and in the property report.

Storm overflows within 5 km

OverflowDischarges intoDistanceSpillsHours
Clarence Street Cso River Darwen 0.5 km 46 (2024) 101
Hindle Street Cso River Darwen Via Sws 0.5 km 18 (2024) 10
Woodvale Flats Cso River Darwen 0.5 km 0 (2024) 0
Vale Street Trib River Darwen 0.6 km 2 (2024) 0

Official annual EDM figures — a water-quality signal for local watercourses, not a property flood-risk factor.

Flood defences

8 mapped flood-defence assets within 500 m — nearest ~108 m (wall, natural high ground). Defences reduce risk, never remove it.

What the full property report adds

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.

Flood risk at nearby postcodes

BB3 1AD up to High BB3 1AE up to Medium BB3 1AJ up to Low BB3 1AR up to High BB3 1AT up to High BB3 1AU up to Low BB3 1AX up to Low BB3 1AY up to High BB3 1AZ up to Low BB3 1BE up to Low BB3 1BF up to High BB3 1BG up to Low

At-risk postcodes near BB3 1EJ — all in the BB3 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 BB3 district.