Mid and East Antrim, Ballymena
BT43 5AA in Ballymena has a Very low flood risk. Heat risk is Lower, with a median (50th percentile) of 3 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 4.4 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 BT43 5AA, use the NI Direct flood maps. Heat, air quality and subsidence figures for BT43 5AA on this page are based on official UK sources and are postcode-level.
Air quality at BT43 5AA 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 BT43 5AA 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 Mid and East Antrim and is updated as new official datasets are published.
Mid and East Antrim has a cool maritime climate with wet winters and mild summers, influenced by the Irish Sea coast and the Antrim plateau. Flood risk is most relevant in coastal towns like Larne and Carrickfergus and along river valleys such as the Braid and Main around Ballymena.
Climate risk can change street by street, so it is worth checking neighbouring postcodes too. The full risk report for BT43 5AD is at localrisk.co.uk/postcode/BT435AD, and you can compare BT43 5AA side by side with any UK postcode at localrisk.co.uk/compare.