LOCATION

CW7 4BH - Flood, Heat, Air & Subsidence Risk - Northwich (CW7)

Cheshire East, Northwich (CW7)

Flood: LowHeat: LowerAir quality: MediumGround: Low

Climate risk summary for CW7 4BH

CW7 4BH in Northwich (CW7) 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 19 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 6.4 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).

How does CW7 4BH compare with the rest of the UK?

  • Air pollution: more polluted than 50% of councils
  • Heat risk: cooler than 62% of councils
  • Subsidence risk: lower risk than 58% of postcodes
  • Green space access: less green access than 74% of English postcodes

What is the flood risk in CW7 4BH?

Flood risk at CW7 4BH is rated Low, based on Environment Agency NaFRA2 modelling.

Environment Agency flood zone data shows low flood risk for CW7 4BH in Northwich (CW7). 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 CW7 4BH?

Air quality at CW7 4BH 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 CW7 4BH?

British Geological Survey data classes the underlying soil at CW7 4BH 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 CW7 4BH 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 Cheshire East and is updated as new official datasets are published.

About the Cheshire East area

Cheshire East spans market towns, lowland plains and river valleys and experiences cool, wet winters and warm summers, shaped by flat terrain and agricultural landscapes.

What should buyers and renters check in CW7 4BH?

Practical check: EA flags just 1 property at flood risk here - check whether this one is among them via a formal flood search. With 19 hot days projected (UKCP18 50th percentile, 2021-2040 average under RCP8.5), note which bedrooms face west (hottest in evening) and whether windows allow through-ventilation. 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 CW7 1AA is at localrisk.co.uk/postcode/CW71AA, and you can compare CW7 4BH side by side with any UK postcode at localrisk.co.uk/compare.