Air Quality Check by Postcode
Enter a postcode for DEFRA's modelled background air quality on its 1 km grid square: NO₂ (nitrogen dioxide), PM2.5 and PM10 against the statutory annual objectives, with the nearest modelled road link. The Complete report puts the same reading alongside the noise picture, the hazard screen and the sold prices for the address.
This check runs on screen, no signup. The full property report is £9.99 Lite / £24.99 Complete. One report, one price, no subscription.
Frequently asked questions
Research from King's College London shows that properties in areas with poor air quality sell for 2–4% less than comparable properties in cleaner areas. The effect is strongest in urban areas near major roads. HouseCheckup's IQ Score factors air quality into the overall property assessment.
HouseCheckup uses DEFRA's background air pollution maps, which model PM2.5, NO₂, PM10, SO₂, and ozone concentrations across the UK at a 1km grid resolution. This is the same data used by local authorities for Air Quality Management Areas (AQMAs).
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