Town CLIMATE RISK
Blundellsands is a town in Merseyside, within the Knowsley council area. The settlement runs to the UK coastline.
Blundellsands inherits its flood band (Medium) from the wider Knowsley council area because the Environment Agency does not publish settlement-level breakdowns for every UK location. Search any postcode in Blundellsands below for the address-level reading from Environment Agency NaFRA2.
Met Office UKCP18 projections (50th percentile) estimate around 17 days above 25°C per year across the Knowsley area, averaged over the 2021-2040 period under the RCP8.5 high emissions scenario. These are probabilistic projections - the 50th percentile is the central estimate within RCP8.5; the full range of modelled outcomes is wide and lower emissions scenarios would produce lower figures. Heat exposure within Blundellsands itself is uneven: top-floor flats, west-facing terraces and properties without through-ventilation hold heat well into the night, while ground-floor homes near tree cover or open ground cool faster. The headline 17-day figure is a council-level UKCP18 estimate (LAD resolution), not a property-level reading.
Annual mean PM2.5 across the Knowsley area is 6.8 µg/m³ - above the World Health Organisation guideline of 5 µg/m³ and within the UK Environment Act 2021 target of 10 µg/m³ by 2040. Within Blundellsands, readings are not flat: postcodes within 200 metres of an A-road or major junction routinely run 30-50% higher during weekday rush hours than residential streets two roads back. The figure is a council-level Defra UK-AIR estimate (1km modelled grid).
Ground stability in Blundellsands follows the underlying geology more than the postal boundary. British Geological Survey shrink-swell mapping follows the underlying geology rather than postal boundaries, and neighbouring streets can sit in different bands where the mapped clay unit ends. Pre-1980 housing on clay-rich ground is the most exposed; properties on bedrock or well-drained sandy soils are typically lower-risk. A postcode-level check picks up that variation.
A free postcode check on LocalRisk covers up to six hazards for any address in Blundellsands: Environment Agency flood mapping, BGS ground stability, Met Office heat projections, Defra PM2.5, plus coastal erosion and green-space access where relevant. The postcode list below opens an address-level report for each postcode in Blundellsands; the council link at the top of this page returns to the wider Knowsley picture.
Council area level (Knowsley). Search a postcode for detail.