Is Your Postcode in a Subsidence Risk Area?
Check the ground around a postcode using BGS ground-hazard bands and the Mining Remediation Authority coalfield screen. The result is regional context, not a diagnosis of subsidence in a house. Keep the postcode result, then choose an address if you want the wider report.
This check runs on screen, no signup. The full property report is £9.99 Lite / £24.99 Complete — one report, one price, no subscription.
How to check for subsidence before buying
Use the result to prepare a short list of questions: has movement been reported, what repairs were done, and are there reports, monitoring records or guarantees to read? Take visible cracking or a disclosed history to your surveyor. An online band cannot settle those questions.
Natural ground hazards and mining are different checks
The six BGS themes are shrink–swell, landslides, compressible ground, collapsible deposits, running sand and soluble rocks. Our coalfield screen is a separate source. See the BGS explanation of the open hex grid and its scale. Contains British Geological Survey data under the Open Government Licence; attribution is also shown with the result.
Before you buy on clay
- Is my house on clay?
- How to investigate suspected subsidence
- Signs to discuss with a surveyor
- What subsidence cracks can look like
- Questions about underpinning and cost
For the area comparison, browse ground stability by outcode. Our published method explains the source limits. Keep the subsidence buyer guide alongside your survey notes.
Frequently asked questions
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