Case Study: Avoiding underinsurance for a high value home

A Private Client approach to rebuild valuations
When it comes to insuring listed properties, attention to detail is critical. These homes are not only historically significant, but they can also have complex rebuild requirements. This case study highlights how our Private Client team guided a homeowner through the building valuation process for their Grade II listed property. A rebuild value is an important part of any home insurance policy as if the building sums insured are incorrect the property could be underinsured.
Background
The client was recommended to speak with our Private Client team for a new insurance quote after completing extensive works on their Grade II listed property, which had been in their family since 1768. With no prior experience of building valuation surveys the client was uncertain about the rebuild value.
The Challenge
The initial rebuild estimate provided by the client was £900,000 - significantly below the true cost. Having accurate buildings sum insured is critical as underinsurance can leave homeowners significantly out of pocket in the event of a claim. In more serious cases, if an insurer believes the property was deliberately or ‘recklessly’ underinsured, they may decline the claim altogether.
Approach
Aaron Parsons, one of our experienced private client advisors, undertook a detailed consultation with the client, carefully reviewing:
- The square meterage of the property
- The scope and quality of the completed works
- The implications of the property’s Grade II listing, which typically increases rebuild complexity and cost
Drawing on his expertise, Aaron helped the client assess whether their initial buildings sum insured estimate was realistic, given the nature of the property. He highlighted the importance of accurate valuations and guided the client towards arranging a professional buildings survey to establish a figure.
This approach helped the client better understand their exposure to underinsurance and laid the groundwork for a potential premium adjustment - as the buildings sum insured is a key factor in determining insurance costs.
The Outcome
The desktop survey recommended a reinstatement value of £1.7 million, compared to the client’s original estimate of £900,000 — a difference of nearly 90%.
Conclusion
This case underscores the importance of professional building valuations, accurate rebuild values and the expert consultation required when insuring listed properties. By guiding the client through the valuation our Private Client team ensured a centuries-old family home was correctly insured.

“We’re seeing a worrying trend in underinsurance, as homeowners continue to underestimate rebuild costs. In some cases, properties are underinsured by 40–50%, which could lead to devastating financial consequences if a claim is made. Up-to-date valuations are essential, and I regularly support clients in arranging professional building valuations so they can be confident their homes are properly protected”.
For more information on building valuations please read our article: Find out more
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Case Study: A tailored insurance solution for a high-value property
Discover how Howden uncovered £1.2M in underinsurance and secured tailored cover for a Grade II listed property