LL65 1AL - Flood, Heat, Air & Subsidence Risk - Valley

Isle of Anglesey, Valley

Climate risk summary for LL65 1AL

LL65 1AL in Valley has a Very low flood risk. Heat risk is Lower, with a median (50th percentile) of 7 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 4.2 μg/m³, within the WHO annual guideline of 5 μg/m³ (Defra UK-AIR).

• Flood: Flood risk is minimal in this area.
• Heat: Projected 7 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 4.2 µg/m³ - within the WHO annual guideline of 5 µg/m³ (Defra UK-AIR PCM model, council-level average - every postcode in this council shows this value).

What is the flood risk in LL65 1AL?

Flood risk at LL65 1AL is rated Very Low, based on Natural Resources Wales flood mapping.

Natural Resources Wales flood zone data shows very low flood risk for LL65 1AL in Valley. 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 LL65 1AL?

Air quality at LL65 1AL 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.

Where does this data come from?

This LocalRisk report for LL65 1AL draws on four official UK open data sources: Natural Resources Wales flood mapping, 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 Isle of Anglesey and is updated as new official datasets are published.

About the Isle of Anglesey area

The Isle of Anglesey has a predominantly coastal and rural setting with low-lying land and exposed shorelines and experiences cool, wet winters and mild summers, shaped by Irish Sea influence and open landscapes.

Climate risk can change street by street, so it is worth checking neighbouring postcodes too. The full risk report for LL65 1AA is at localrisk.co.uk/postcode/LL651AA, and you can compare LL65 1AL side by side with any UK postcode at localrisk.co.uk/compare.