Cheshire West and Chester, Shotton
CH1 4QX in Shotton has a Medium flood risk. 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 Low at PM2.5 5.5 μg/m³, above the WHO annual guideline of 5 μg/m³ (Defra UK-AIR). Ground conditions are Low risk, with Quaternary Marine/Estuarine Sand And Silt geology; shrink-swell risk is classed as improbable (BGS GeoClimate).
Flood risk at CH1 4QX is rated Medium, based on Natural Resources Wales flood mapping.
Natural Resources Wales flood zone data places CH1 4QX in the medium flood risk band. The band reflects the highest flood risk within the postcode; some properties within this postcode may face little or no direct flood risk. Individual properties within CH1 4QX can differ - a formal flood risk search is recommended before any property transaction.
Air quality at CH1 4QX is rated Low, 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.
British Geological Survey data classes the underlying soil at CH1 4QX as Quaternary Marine/Estuarine Sand And Silt, 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.
This LocalRisk report for CH1 4QX draws on four official UK open data sources: Natural Resources Wales flood mapping, 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 Cheshire West and Chester and is updated as new official datasets are published.
Flintshire has a mixed coastal, industrial and rural setting along the Dee estuary and inland valleys and experiences cool, wet winters and mild summers, influenced by estuarine conditions and rising ground.
Climate risk can change street by street, so it is worth checking neighbouring postcodes too. The full risk report for CH1 1AB is at localrisk.co.uk/postcode/CH11AB, and you can compare CH1 4QX side by side with any UK postcode at localrisk.co.uk/compare.