Buying a home in BL7 (Blackburn with Darwen)
BL7 covers the Astley Bridge, Bradshaw, Bromley Cross and West Pennine wards, in Blackburn with Darwen and Bolton.
What the records show in BL7 (Blackburn with Darwen): surface water flood risk is medium or high at 1 of the 8 postcodes we checked; parts of the area are a radon Affected Area, with up to 10–30% of homes above the action level; the British Geological Survey rates landslides as significant near all 8 postcodes we checked; old landfill lies within 500 m of 2 of the 8 postcodes we checked; and 3 postcodes we checked are in a conservation area or on a listed building's site, including Blackburn with Darwen.
Land Registry recorded 8 sales there in the last 3 years, with a median price of £307,500, and the most common were detached homes.
From official records at 8 postcodes. Conditions change from street to street, so check the home you're buying.
Check a home in BL7
Enter a postcode or address for the free area check at that exact postcode.
At a glance
- Rivers and seaOutside mapped flood areas at all 8 postcodes we checked
- Surface waterMedium or high at 1 of the 8 postcodes we checked
- RadonUp to 10–30% of homes above the action level
- GroundLandslides and clay shrink-swell recorded nearby
- Median sale£307,500 across 8 sales in the last 3 years
Facts from official records at sample postcodes, not a rating of BL7 or of any home.
Flooding from rivers and the sea
We checked each postcode centre against the Environment Agency's flood zones.
All 8 postcodes we checked are outside mapped river and sea flood areas. Homes nearer a river or the coast can still be in one.
Surface water flooding
Flooding from heavy rain that can't drain away.
- High: 1 of 8 postcodes (BL7 0HE)
- Very low: 7 of 8 postcodes
Medium means a 1% to 3.3% chance of flooding each year, and high more than that. It changes over a few metres, so look at the drainage when you view.
Radon
From the UK Health Security Agency's map of each 1 km square.
At all 8 postcodes we checked, parts of the surrounding square are a radon Affected Area. The highest is up to 10–30% of homes above the action level.
The map shows the highest value in each square, not a measurement for any home. A three-month test tells you about a particular house.
Ground stability
British Geological Survey ratings for the surrounding area, not a particular plot.
- Landslides: significant near all 8 postcodes we checked
- Clay shrink-swell: moderate near all 8 postcodes we checked
Non-coal mining hazard is low or none at every postcode we checked.
Ask your surveyor to look for cracking and movement, and the seller about subsidence claims.
Old landfill sites
Historic landfill sites within 500 m of each postcode centre.
Most old landfill causes no problems, but a home on or next to one can be harder to mortgage.
Conservation areas and listed buildings
Whether each postcode centre falls in a conservation area, on a listed building's site, or under similar protections.
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Broadband and mobile
Ofcom's predictions for every address at the 8 postcodes we checked.
We couldn't get Ofcom's figures when this guide was built.
House prices
The average price in Blackburn with Darwen was £160,727 in August 2026, down 0.2% on a year earlier, across every home in the council area.
At the postcodes we checked, Land Registry has 8 sales in the last 3 years, with a median of £307,500 and a range of £250,000 to £700,000.
| Type | Sales | Median price |
|---|---|---|
| Detached | 5 | £360,000 |
| Semi-detached | 2 | £280,000 |
| Other | 1 | £250,000 |
Crime
Measured around BL7 0HF, near the centre of BL7.
1 crimes were reported within about a mile of the centre in August 2026. Town centres usually have more, because of shops and nightlife.
- Anti-social behaviour1
Schools near the centre
The nearest schools by distance. Distance doesn't decide a place: each council's admissions rules do.
- Eagley Infant School
Primary · ages 2–7 · Academy converter · 1.1 km
- Walmsley CofE Primary School
Primary · ages 4–11 · Academy converter · 1.3 km
- Eagley Junior School
Primary · ages 7–11 · Academy converter · 1.4 km
- St John the Evangelist RC Primary School, Bromley Cross, Bolton
Primary · ages 5–11 · Voluntary aided school · 1.4 km
- Egerton Community Primary School
Primary · ages 5–11 · Academy converter · 1.6 km
- Turton School
Secondary · ages 11–18 · Community school · 1.7 km
- Birtenshaw School Bolton
Secondary · ages 3–19 · Non-maintained special school · 2.1 km
- Sharples School
Secondary · ages 11–16 · Academy converter · 2.5 km
- Canon Slade School
Secondary · ages 11–18 · Academy converter · 3.1 km
Blackburn with Darwen Borough Council: Primary admissions ↗ · Secondary admissions ↗
Postcode by postcode
Each row is one postcode centre we checked. Open a postcode for the full free area check.
| Postcode | Rivers and sea | Surface water | Radon | Ground | Landfill |
|---|---|---|---|---|---|
| BL7 0HF | Outside | Very low | 3–5% | Significant: landslides | None within 500 m |
| BL7 9RF | Outside | Very low | 3–5% | Significant: landslides | None within 500 m |
| BL7 0RY | Outside | Very low | 10–30% | Significant: landslides | None within 500 m |
| BL7 9XN | Outside | Very low | 3–5% | Significant: landslides | 1 within 500 m |
| BL7 0HJ | Outside | Very low | 3–5% | Significant: landslides | None within 500 m |
| BL7 9LP | Outside | Very low | 3–5% | Significant: landslides | 1 within 500 m |
| BL7 0HE | Outside | High | 3–5% | Significant: landslides | None within 500 m |
| BL7 9UW | Outside | Very low | 3–5% | Significant: landslides | None within 500 m |
What this guide can't tell you
- It covers 8 postcodes, not every street, and leaves out planning applications: check the postcode you're buying in.
- It isn't a survey, a search or advice, and doesn't rate BL7 or any home.
Sources
Checked 30 October 2026. We refresh these guides every month.
- HM Land Registry Price Paid Data
- Environment Agency, Historic Landfill Sites (Environment Agency Conditional Licence). Contains Environment Agency information © Environment Agency and/or database right.
- Contains British Geological Survey materials © UKRI 2026. BGS/UKHSA Indicative Atlas of Radon
- British Geological Survey, GeoSure 5 km and mining hazard 1 km hex grids (Open Government Licence). Contains NERC materials ©NERC 2026.
- Planning Data England (planning.data.gov.uk)
- Environment Agency, Risk of Flooding from Surface Water (Open Government Licence)
- data.police.uk street-level crime (Open Government Licence)
- UK House Price Index (HM Land Registry and Registers of Scotland), Open Government Licence. Contains HM Land Registry data © Crown copyright and database right. Contains Registers of Scotland data © Crown copyright and database right.
- Department for Education, Get Information about Schools (Open Government Licence)