LOCATION

EX1 1AS - Flood, Heat, Air & Subsidence Risk - Polsloe Bridge (EX1)

Exeter, Polsloe Bridge (EX1)

Flood: Very lowHeat: LowerAir quality: LowGround: Low

Climate risk summary for EX1 1AS

EX1 1AS in Polsloe Bridge (EX1) has a Very low flood risk - EA NaFRA2 data records no properties in a flood risk zone in this postcode. Heat risk is Lower, with a median (50th percentile) of 19 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 Sandstone geology; shrink-swell risk is classed as improbable (BGS GeoSure).

How does EX1 1AS compare with the rest of the UK?

  • Air pollution: cleaner than 77% of councils
  • Heat risk: cooler than 62% of councils
  • Subsidence risk: lower risk than 58% of postcodes
  • Green space access: better green access than 77% of English postcodes

What is the flood risk in EX1 1AS?

Flood risk at EX1 1AS is rated Very Low, based on Environment Agency NaFRA2 modelling.

Environment Agency flood zone data shows very low flood risk for EX1 1AS in Polsloe Bridge (EX1). EA NaFRA2 data shows no properties at flood 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 EX1 1AS?

Air quality at EX1 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.

Is subsidence a risk at EX1 1AS?

BGS GeoSure data classes the underlying soil at EX1 1AS as Sandstone, 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 EX1 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 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 Exeter and is updated as new official datasets are published.

About the Exeter area

Exeter has an inland city setting along the River Exe with surrounding low-lying land and hills and experiences cool, wet winters and warm summers, shaped by river floodplains and urban development.

What should buyers and renters check in EX1 1AS?

Practical check: With 19 hot days projected (UKCP18 50th percentile, 2021-2040 average under RCP8.5), note which bedrooms face west (hottest in evening) and whether windows allow through-ventilation. 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 EX1 1AE is at localrisk.co.uk/postcode/EX11AE, and you can compare EX1 1AS side by side with any UK postcode at localrisk.co.uk/compare.