GeoSure Insurance V7: UK Postcode-Level Ground Stability Hazard Scores

The British Geological Survey's GeoSure Insurance Product V7 provides a Derived Postcode Database with a Total Hazard Score and six component hazard scores for Great Britain. This dataset results from interpreting the 1:50,000 scale digital geological map and six natural ground movement hazard maps, combined with expert analysis to estimate potential damage to low-rise buildings. It incorporates postcode data from the Ordnance Survey Code-Point Open version 2016.1.

Use Cases

• Modeling property insurance premiums based on the combined Total Hazard Score for a postcode.
• Prioritizing geotechnical surveys for development based on the breakdown of six component hazard scores.
• Analyzing regional patterns of subsidence risk from shrink-swell clays or running sand hazards.
• Cross-referencing postcode-level hazard scores with property claims data to validate risk models.

Strengths

• Derived from the definitive BGS Digital Geological Map of Great Britain at 1:50,000 scale.
• Incorporates six distinct natural ground hazard assessments: shrink-swell clays, slope instability, dissolution, running sand, compressible and collapsible deposits.
• Hazard scores are the result of a documented expert analysis and statistical interpretation process.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The methodology is specifically designed for low-rise buildings only.

Provenance

Source

British Geological Survey (BGS)

Collection Method

Interpretation of the BGS DiGMapGB-50 and GeoSure hazard maps, combined with expert analysis and statistical interpretation to estimate property damage.

Time Range

Incorporates postcode data from OS Code-Point Open version 2016.1.

Freshness

Last updated 2026-04-09 08:32:17.562887; freshness should be verified.

Geography

Great Britain (excluding the Isle of Man).