LOCATION

PL30 3AP - Flood, Heat, Air & Subsidence Risk - Helland (PL30)

Cornwall, Helland (PL30)

Flood: LowHeat: LowerAir quality: LowGround: Low

Climate risk summary for PL30 3AP

PL30 3AP in Helland (PL30) has a Low flood risk - EA NaFRA2 data records 2 properties in a flood risk zone. Heat risk is Lower, with a median (50th percentile) of 9 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 5.1 μg/m³, above the WHO annual guideline of 5 μg/m³ (Defra UK-AIR). Ground conditions are Low risk, with Argillite-Slate geology; shrink-swell risk is classed as improbable (BGS GeoSure).

How does PL30 3AP compare with the rest of the UK?

  • Air pollution: cleaner than 82% of councils
  • Heat risk: cooler than 84% of councils
  • Subsidence risk: lower risk than 58% of postcodes
  • Green space access: less green access than 66% of English postcodes

What is the flood risk in PL30 3AP?

Flood risk at PL30 3AP is rated Low, based on Environment Agency NaFRA2 modelling.

Environment Agency flood zone data shows low flood risk for PL30 3AP in Helland (PL30). EA NaFRA2 data shows 2 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. For a specific property, a conveyancing search will confirm the exact flood zone position.

How is the air quality in PL30 3AP?

Air quality at PL30 3AP 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.

Is subsidence a risk at PL30 3AP?

BGS GeoSure data classes the underlying soil at PL30 3AP as Argillite-Slate, with shrink-swell hazard rated improbable (subsidence risk band: Low). Soil type and shrink-swell behaviour drive subsidence claims following dry summers; recent ABI data shows insurer payouts rose sharply after the 2022 and 2025 hot summers. A structural survey is the reliable way to assess ground risk for a specific property.

Where does this data come from?

This LocalRisk report for PL30 3AP 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 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 Cornwall and is updated as new official datasets are published.

About the Cornwall area

Cornwall has an exposed coastal and rural setting with upland moors and river valleys and experiences cool, wet winters and mild summers, shaped by Atlantic influences and varied topography.

What should buyers and renters check in PL30 3AP?

Practical check: EA flags just 2 properties at flood risk here - check whether this one is among them via a formal flood search. These are postcode-level indicators - conditions vary between individual properties.