WN5 7AW - Flood, Heat, Air & Subsidence Risk - Aughton (WN5)

West Lancashire, Aughton (WN5)

Climate risk summary for WN5 7AW

WN5 7AW in Aughton (WN5) has a Very low flood risk - EA NaFRA2 data records no properties in a flood risk zone in this postcode. Heat risk is Lower, with a median (50th percentile) of 14 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 6.0 μg/m³, above the WHO annual guideline of 5 μg/m³ (Defra UK-AIR). Ground conditions are Low risk, with Eolian Sand geology; shrink-swell risk is classed as improbable (BGS GeoClimate).

• Flood: EA NaFRA2: no properties at flood risk in this postcode.
• Heat: Projected 14 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 6.0 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: Eolian Sand geology. Shrink-swell risk classed as improbable (British Geological Survey).
• Green space: 100% of households here have accessible green space within a 15-minute walk (the government's Environmental Improvement Plan standard), and 12% have a park or green space within a 200m walk of their door - near the England median (Defra, 2025).

What is the flood risk in WN5 7AW?

Flood risk at WN5 7AW is rated Very Low, based on Environment Agency NaFRA2 modelling.

Environment Agency flood zone data shows very low flood risk for WN5 7AW in Aughton (WN5). EA NaFRA2 data shows no properties at flood 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 WN5 7AW?

Air quality at WN5 7AW 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 WN5 7AW?

British Geological Survey data classes the underlying soil at WN5 7AW as Eolian Sand, 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 WN5 7AW 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 West Lancashire and is updated as new official datasets are published.

About the West Lancashire area

West Lancashire has a predominantly low-lying rural and market-town setting with flat farmland, mossland and river corridors around Ormskirk and Skelmersdale, and experiences cool, wet winters and mild summers, shaped by North West England climate and limited elevation.

Climate risk can change street by street, so it is worth checking neighbouring postcodes too. The full risk report for WN5 0AA is at localrisk.co.uk/postcode/WN50AA, and you can compare WN5 7AW side by side with any UK postcode at localrisk.co.uk/compare.