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CH45 0JA - Flood, Heat, Air & Subsidence Risk - New Brighton (CH45)

Wirral, New Brighton (CH45)

Flood: LowHeat: LowerAir quality: LowGround: Low

CH45 0JA in New Brighton (CH45) 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 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 Low at PM2.5 5.9 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 GeoSure).

National comparison

  • Air pollution: cleaner than 74% of councils
  • Heat risk: cooler than 70% of councils
  • Subsidence risk: lower risk than 58% of postcodes
  • Green space access: better green access than 82% of English postcodes

Flood risk at CH45 0JA is rated Low, based on Environment Agency NaFRA2 modelling.

Air quality at CH45 0JA 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.

BGS GeoSure data classes the underlying soil at CH45 0JA as Eolian Sand, with shrink-swell hazard rated improbable (subsidence risk band: Low). Soil type and shrink-swell behaviour drive subsidence claims following dry summers; recent ABI data shows insurer payouts rose sharply after the 2022 and 2025 hot summers. A structural survey is the reliable way to assess ground risk for a specific property.

This LocalRisk report for CH45 0JA 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 GeoSure subsidence mapping. Risk ratings are a screening tool, complementing - not replacing - the searches and surveys ordered as part of a property transaction. Data covers Wirral and is updated as new official datasets are published.

Wirral has a coastal and suburban peninsula setting between the Mersey and Dee estuaries with low-lying land and dense settlements and experiences cool, wet winters and mild summers, influenced by Irish Sea exposure and flat terrain.

Environment Agency flood zone data shows low flood risk for CH45 0JA in New Brighton (CH45). 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.

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.