Other Settlement CLIMATE RISK
Elmers Marsh is a settlement in West Sussex, within Chichester council area. This page shows flood, heat, air quality, and subsidence risk data for Elmers Marsh, drawn from official UK government sources.
Flood risk in Elmers Marsh is rated Medium based on Environment Agency data for the Chichester area. Individual postcode flood risk can vary — check a specific address above for a postcode-level rating.
Heat risk in Elmers Marsh is moderate under current projections. Met Office UKCP18 data suggests around 29 days above 25°C per year in this area by the 2021-2040 period (central estimate, high emissions scenario). These are probabilistic projections — actual outcomes depend on future emissions levels. Properties in Elmers Marsh without adequate ventilation or insulation may face increasing summer heat stress and higher cooling costs as temperatures rise.
Air quality in Elmers Marsh averages 6.0 µg/m³ PM2.5, which is relatively low — above the WHO annual mean guideline of 5 µg/m³. Defra UK-AIR monitoring data underpins this figure. PM2.5 levels are typically higher near busy roads, industrial areas, and dense urban centres, and lower in parks, green corridors, and residential backstreets.
Subsidence data for Elmers Marsh is sourced from the British Geological Survey GeoSure dataset, which maps clay shrink-swell risk across Great Britain. In areas with shrink-swell clay, foundations can shift as soils dry out in summer and re-wet in winter. Properties built before 1980 on clay-rich ground are most exposed. Check a specific postcode for Elmers Marsh for a property-level subsidence risk band.
Anyone buying, renting, or advising on property in Elmers Marsh can use LocalRisk to run a free climate risk check on any UK postcode. Each report covers flood risk (Environment Agency), heat projections (Met Office), air quality (Defra), subsidence (BGS), and coastal erosion where applicable — the same underlying datasets used by insurers, conveyancers, and local planning authorities. Use the postcode links above to check a specific address in Elmers Marsh.
Council area level (Chichester). Search a postcode for detail.
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