LOCATION

GL5 1QW - Flood, Heat, Air & Subsidence Risk - Dursley

Stroud, Dursley

Flood: HighHeat: MediumAir quality: LowGround: Low

GL5 1QW in Dursley has a High flood risk - EA NaFRA2 data records 16 properties at high flood risk. Heat risk is Medium, with a median (50th percentile) of 26 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 6.0 μg/m³, above the WHO annual guideline of 5 μg/m³ (Defra UK-AIR). Ground conditions are Low risk, with Calcarous Rocks And Clastic Rocks geology; shrink-swell risk is classed as improbable (BGS GeoSure).

National comparison

  • Air pollution: cleaner than 77% of councils
  • Heat risk: hotter than 58% of councils
  • Subsidence risk: lower risk than 58% of postcodes
  • Green space access: better green access than 69% of English postcodes

Flood risk at GL5 1QW is rated High, based on Environment Agency NaFRA2 modelling.

Heat risk at GL5 1QW is rated Medium, reflecting Met Office UKCP18 climate projections (50th percentile) for this area, averaged over the 2021-2040 period under the RCP8.5 high emissions scenario. These are probabilistic projections - the 50th percentile is the central estimate within RCP8.5; the full range of modelled outcomes is wide and lower emissions scenarios would produce lower figures. Higher summer temperatures increase cooling energy costs, affect comfort in poorly insulated or south-facing properties, and can accelerate shrinkage in clay soils beneath foundations. Properties built before 1980 without cavity wall insulation are typically most affected.

Air quality at GL5 1QW 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.

BGS GeoSure data classes the underlying soil at GL5 1QW as Calcarous Rocks And Clastic Rocks, 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.

This LocalRisk report for GL5 1QW 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 Stroud and is updated as new official datasets are published.

Stroud has a mixed rural and market town setting with steep valleys, river corridors and surrounding Cotswold escarpment and experiences cool, wet winters and mild summers, shaped by elevation and complex topography.

Environment Agency flood zone data places GL5 1QW in the high flood risk band. EA NaFRA2 data shows 16 at high 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. A formal flood risk search and review of buildings insurance availability is recommended before any property transaction in this area.

Practical check: With 16 properties at high flood risk here, ask about past flooding events, check the entrance threshold height relative to road level, and review buildings insurance terms. With 26 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.