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

Knowsley, Kirkby (L10)

Climate risk summary for L10 0AN

L10 0AN in Kirkby (L10) has a Medium flood risk - EA NaFRA2 data records 5 properties in a flood risk zone. Heat risk is Lower, with a median (50th percentile) of 17 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 6.8 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 GeoClimate).

• Flood: EA NaFRA2: 1 medium, 4 low flood risk properties in this postcode.
• 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: 73% of households here have accessible green space within a 15-minute walk (the government's Environmental Improvement Plan standard), and 32% 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 0AN?

Flood risk at L10 0AN is rated Medium, based on Environment Agency NaFRA2 modelling.

Environment Agency flood zone data places L10 0AN in the medium flood risk band. EA NaFRA2 data shows 1 at medium risk, 4 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. Individual properties within L10 0AN can differ - a formal flood risk search is recommended before any property transaction.

How is the air quality in L10 0AN?

Air quality at L10 0AN 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 0AN?

British Geological Survey data classes the underlying soil at L10 0AN 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 0AN 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.

What should buyers and renters check in L10 0AN?

Practical check: EA data flags 5 properties at flood risk here - check whether the property is among them by comparing its position to the flood zone boundary. 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 L10 0AD is at localrisk.co.uk/postcode/L100AD, and you can compare L10 0AN side by side with any UK postcode at localrisk.co.uk/compare.