Plymouth, Millbay (PL1)
PL1 1AS in Millbay (PL1) has a Medium flood risk - EA NaFRA2 data records 1 property in a flood risk zone. Heat risk is Lower, with a median (50th percentile) of 13 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 5.5 μg/m³, above the WHO annual guideline of 5 μg/m³ (Defra UK-AIR). Ground conditions are Low risk, with Claystone/Mudstone geology; shrink-swell risk is classed as improbable (BGS GeoClimate).
Flood risk at PL1 1AS is rated Medium, based on Environment Agency NaFRA2 modelling.
Environment Agency flood zone data places PL1 1AS in the medium flood risk band. EA NaFRA2 data shows 1 at medium 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 PL1 1AS can differ - a formal flood risk search is recommended before any property transaction.
Air quality at PL1 1AS 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.
British Geological Survey data classes the underlying soil at PL1 1AS as Claystone/Mudstone, 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.
This LocalRisk report for PL1 1AS 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 Plymouth and is updated as new official datasets are published.
Plymouth has a coastal city setting with steep river valleys, estuaries and rising ground inland and experiences cool, wet winters and mild summers, shaped by maritime influence and complex topography.
Practical check: EA data flags 1 property 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 PL1 1AE is at localrisk.co.uk/postcode/PL11AE, and you can compare PL1 1AS side by side with any UK postcode at localrisk.co.uk/compare.