L10 0AQ - Flood, Heat, Air & Subsidence Risk - Kirkby (L10)

Knowsley, Kirkby (L10)

Climate risk summary for L10 0AQ

Broadly stable conditions for this postcode in Knowsley: PM2.5 is 6.8 µg/m³, above the WHO annual guideline (5 µg/m³). Environment Agency address-level flood data does not cover this postcode. Hot days (>25°C) are projected to average 17 days per year over 2021-2040 (below the projected UK average). Ground movement risk is lower on national screening maps. Above-average green space (48% of addresses) is a positive feature for this lower-risk postcode.

Practical check: focus on drainage and ventilation - clear gutters and adequate loft airflow help manage moisture in this climate. These are postcode-level indicators; local conditions and building fabric will influence how they apply on a specific property.

• Flood: No flood-risk band is published for this postcode in the current dataset releases - a data-coverage gap rather than a rating. The national agencies' address-level flood services cover every property.
• Heat: Projected 17 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 6.8 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: 59% of households here have accessible green space within a 15-minute walk (the government's Environmental Improvement Plan standard), and 48% have a park or green space within a 200m walk of their door - above the England median (Defra, 2025).

What is the flood risk in L10 0AQ?

An official flood-risk band is not available for L10 0AQ in the current dataset releases used by LocalRisk. This is a data-coverage gap rather than a low-risk rating. For a property-level reading, the Environment Agency's Check Your Long-Term Flood Risk service covers every address in England.

How is the air quality in L10 0AQ?

Air quality at L10 0AQ 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 L10 0AQ?

British Geological Survey data classes the underlying soil at L10 0AQ 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 L10 0AQ 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 Knowsley and is updated as new official datasets are published.

About the Knowsley area

Knowsley has an urban and suburban setting with former industrial land and river valleys and experiences cool, wet winters and warm summers, influenced by lowland terrain and dense development.

Climate risk can change street by street, so it is worth checking neighbouring postcodes too. The full risk report for L10 0AD is at localrisk.co.uk/postcode/L100AD, and you can compare L10 0AQ side by side with any UK postcode at localrisk.co.uk/compare.