A UK insurer held 15,000 property records from one segment of its book. Address data had degraded through acquisition and system migration. Only 71% resolved to a single physical property. Heritage status was not recorded anywhere in the file.
A UK insurer
1,100 listed buildings identified across 15,000 properties
Cleaning up degraded address data showed that 7.3% of the file was listed buildings, with reinstatement value understated by about £188m.
InsurerRISK APIRisk Intelligence
Situation
Approach
Every address was normalised and matched against authoritative property identifiers through Risk_API. Each resolved property returned a validated COPE profile and was screened against statutory heritage registers, including curtilage listings.
Results
Resolution rate rose from 71% to 94%. The file returned in minutes, against a manual estimate of 2,500 hours.
1,100 properties, 7.3% of the file, carried listed status. None appeared as listed on the schedule.
Implication
Listed buildings require like-for-like reinstatement, specialist trades and consent. Rebuild cost typically runs 40 to 60% above an equivalent unlisted property. At £380,000 average rebuild and a 45% heritage uplift, reinstatement value across the affected properties was understated by approximately £188m.
The insurer now applies the same screening across the wider book.
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