BL6 5HL - Flood, Heat, Air & Subsidence Risk - Adlington (BL6)

Chorley, Adlington (BL6)

Climate risk summary for BL6 5HL

BL6 5HL in Adlington (BL6) has a Low flood risk - EA NaFRA2 data records 1 property in a flood risk zone. Heat risk is Lower, with a median (50th percentile) of 13 days above 25°C per year, averaged over the 2021-2040 period under the RCP8.5 high emissions scenario (Met Office UKCP18). Air quality is Medium at PM2.5 6.3 μg/m³, above the WHO annual guideline of 5 μg/m³ (Defra UK-AIR). Ground conditions are Low risk, with Glacial Till geology; shrink-swell risk is classed as improbable (BGS GeoClimate).

• Flood: EA NaFRA2: 1 low flood risk properties in this postcode.
• Heat: Projected 13 days above 25°C per year, 2021-2040 average (Met Office UKCP18, 50th percentile under RCP8.5, 12 km grid - postcodes within the same grid cell share this value).
• Air quality: PM2.5 6.3 µg/m³ - above the WHO annual guideline of 5 µg/m³ (Defra UK-AIR PCM model, council-level average - every postcode in this council shows this value).
• Ground: BGS data: Glacial Till geology. Shrink-swell risk classed as improbable (British Geological Survey).
• Green space: 93% of households here have accessible green space within a 15-minute walk (the government's Environmental Improvement Plan standard), and 24% have a park or green space within a 200m walk of their door - above the England median (Defra, 2025).

What is the flood risk in BL6 5HL?

Flood risk at BL6 5HL is rated Low, based on Environment Agency NaFRA2 modelling.

Environment Agency flood zone data shows low flood risk for BL6 5HL in Adlington (BL6). EA NaFRA2 data shows 1 at low risk in this postcode. The band reflects the highest flood risk within the postcode; some properties within this postcode may face little or no direct flood risk. For a specific property, a conveyancing search will confirm the exact flood zone position.

How is the air quality in BL6 5HL?

Air quality at BL6 5HL is rated Medium, based on Defra UK-AIR annual mean PM2.5 data. Fine particulate matter (PM2.5) comes primarily from road traffic, industry, and domestic burning. Long-term exposure above the WHO guideline of 5 µg/m³ is linked to respiratory and cardiovascular health risks. Buyers and renters in higher air quality risk areas may wish to consider whether the property is near busy roads or industrial sources.

Is subsidence a risk at BL6 5HL?

British Geological Survey data classes the underlying soil at BL6 5HL as Glacial Till, with shrink-swell hazard rated improbable (subsidence risk band: Low). A structural survey is the reliable way to assess ground conditions for a specific property.

Where does this data come from?

This LocalRisk report for BL6 5HL draws on four official UK open data sources: Environment Agency NaFRA2 flood modelling, Met Office UKCP18 climate projections, Defra UK-AIR PM2.5 monitoring, and British Geological Survey GeoClimate subsidence mapping. Risk ratings are a screening tool, complementing - not replacing - the searches and surveys ordered as part of a property transaction. Data covers Chorley and is updated as new official datasets are published.

About the Chorley area

Chorley has an inland setting of towns and open countryside with higher ground to the east and experiences cool, wet winters and warm summers, shaped by Pennine foothills and river catchments.

What should buyers and renters check in BL6 5HL?

Practical check: EA flags just 1 property at flood risk here - check whether this one is among them via a formal flood search. These are postcode-level indicators - conditions vary between individual properties.

Climate risk can change street by street, so it is worth checking neighbouring postcodes too. The full risk report for BL6 4AA is at localrisk.co.uk/postcode/BL64AA, and you can compare BL6 5HL side by side with any UK postcode at localrisk.co.uk/compare.