LOCATION

W10 4AQ - Flood, Heat, Air & Subsidence Risk - Kensal Green (W10)

Brent, Kensal Green (W10)

Flood: Very lowHeat: HigherAir quality: HighGround: High

Climate risk summary for W10 4AQ

Several factors matter, particularly ground movement, heat and air quality for this postcode in Brent. Hot days (>25°C) are projected to average 39 days per year over 2021-2040 (among the highest nationally), and PM2.5 is 8.9 µg/m³, above the WHO annual guideline (5 µg/m³). Ground movement risk is higher here, reflecting the wider ground conditions mapped for this postcode (soil: marine sands and silts). Flood risk is lower on national screening maps.

Practical check: in free-draining ground like this, look for stepped cracks and ask about mature trees or shrubs close to the building. These are postcode-level indicators; conditions vary between properties.

How does W10 4AQ compare with the rest of the UK?

  • Air pollution: more polluted than 94% of councils
  • Heat risk: hotter than 93% of councils
  • Subsidence risk: higher risk than 95% of postcodes
  • Green space access: less green access than 95% of English postcodes

What is the flood risk in W10 4AQ?

Flood risk at W10 4AQ is rated Very Low, based on Environment Agency NaFRA2 modelling.

Environment Agency flood zone data shows very low flood risk for W10 4AQ in Kensal Green (W10). 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.

What is the heat risk in W10 4AQ?

Heat risk at W10 4AQ is rated Higher, 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.

How is the air quality in W10 4AQ?

Air quality at W10 4AQ is rated High, 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 W10 4AQ?

British Geological Survey data classes the underlying soil at W10 4AQ as Prequaternary Marine/Estuarine Sand And Silt, with shrink-swell hazard rated probable (subsidence risk band: High). 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 conditions for a specific property.

Where does this data come from?

This LocalRisk report for W10 4AQ 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 Brent and is updated as new official datasets are published.

About the Brent area

Brent has a dense inner-London setting and experiences cool, wet winters and warm summers, with local conditions shaped by urban form rather than topography.

What should buyers and renters check in W10 4AQ?

Practical check: 39 hot days are projected (UKCP18 50th percentile, 2021-2040 average under RCP8.5) - check which rooms face south or west and whether the property has cross-ventilation or external shading. With PM2.5 above WHO guidelines here, check which bedrooms face busy roads and how fresh air is drawn into living spaces. With prequaternary marine/estuarine sand and silt geology here, look for signs of ground movement - diagonal cracks above windows, sticking doors, and gaps between walls and extensions. 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 W10 4AA is at localrisk.co.uk/postcode/W104AA, and you can compare W10 4AQ side by side with any UK postcode at localrisk.co.uk/compare.