Derry City and Strabane, Londonderry
BT81 7AG in Londonderry has a Very low flood risk. Heat risk is Lower, with a median (50th percentile) of 5 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 4.1 μg/m³, within the WHO annual guideline of 5 μg/m³ (Defra UK-AIR).
Postcode-level flood risk data for Northern Ireland (DfI Rivers) is not yet integrated into LocalRisk. To check the specific flood risk at BT81 7AG, use the NI Direct flood maps. Heat, air quality and subsidence figures for BT81 7AG on this page are based on official UK sources and are postcode-level.
Air quality at BT81 7AG 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.
This LocalRisk report for BT81 7AG draws on official UK open data sources: Met Office UKCP18 climate projections, Defra UK-AIR PM2.5 monitoring, and British Geological Survey GeoSure subsidence mapping. Postcode-level flood data for Northern Ireland (DfI Rivers) is not yet integrated. Risk ratings are a screening tool, complementing - not replacing - the searches and surveys ordered as part of a property transaction. Data covers Derry City and Strabane and is updated as new official datasets are published.
Derry City and Strabane spans an urban riverside centre with surrounding uplands and rural valleys and experiences cool, wet winters and mild summers, shaped by Atlantic-influenced weather and varied topography.
Climate risk can change street by street, so it is worth checking neighbouring postcodes too. The full risk report for BT81 7AA is at localrisk.co.uk/postcode/BT817AA, and you can compare BT81 7AG side by side with any UK postcode at localrisk.co.uk/compare.