HouseCheckup checks ground stability risk for any UK property using British Geological Survey (BGS) GeoSure data. See shrink-swell clay risk, landslide susceptibility, compressible ground, collapsible deposits, and running sand hazards. No other free tool offers this data — Homedata covers radon and coal mining but not BGS GeoSure. Our £14.99 Complete report includes full ground stability assessment with risk explanations.
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This free tool checks one data point. The HouseCheckup Complete report combines 70+ data sources into an 18-page report with a composite IQ Score (0–100) — covering flood, EPC, crime, schools, transport, ground stability, investment potential, and more.
The main cause of subsidence in England and Wales is shrink-swell clay. During dry periods, clay soils shrink and can cause foundations to move. About 25% of UK homes are on shrink-swell clay. Other causes include mining activity, natural dissolution of soluble rocks, and compressible ground. HouseCheckup checks all of these using BGS GeoSure data.
Yes. HouseCheckup checks Coal Authority data for past, present, and planned coal mining activity. Properties in coal mining areas may be affected by subsidence from old mine workings. The Complete report includes detailed coal mining risk assessment alongside BGS ground stability data.
Properties with a history of subsidence or in high-risk areas may face higher insurance premiums or excesses. Insurers often check BGS data when underwriting. HouseCheckup's ground stability check helps you understand the risk before purchasing, so you can factor insurance costs into your decision.