Category: Insurance case law · Reviewed by Tim Roche, Director · PI & Commercial · Last reviewed June 2026
Litigation between a specialist lender and a national surveying firm arising out of allegedly negligent residential mortgage valuations, addressing the SAAMCO scope of duty principle and the measure of loss recoverable from a valuer.
Mortgage Express Ltd was an active lender in the specialist residential mortgage market, including buy-to-let and self-certified products. It commissioned valuations from Countrywide Surveyors Ltd, one of the largest surveying firms in the United Kingdom, in support of substantial volumes of residential lending.
Following the deterioration of the residential property market and the wave of arrears and possessions that followed the 2007–2008 financial crisis, the lender experienced losses on a portfolio of loans. It brought claims against Countrywide alleging that a series of valuations had overstated the value of the security properties, on the basis that a competent valuer applying the RICS Red Book and prevailing market evidence would have produced significantly lower figures. The lender’s case was that, but for the alleged over-valuations, it would not have advanced the loans on the terms it did, and would not have suffered the losses recorded on enforcement.
The dispute involved consideration of valuation methodology in falling markets, the use of comparable evidence, the treatment of incentives or other features distorting headline sale prices, and the application of accepted margins of error (typically a bracket of five to ten per cent for a standard property and wider for unusual or specialist properties). It also engaged the question of how the losses suffered by a lender on enforcement should be allocated as between the valuer’s breach and other causes — falls in the market, borrower default risk and the lender’s own lending policies.
The proceedings reflect a broader pattern of post-crisis lender claims against high volume valuers and have given rise to a body of guidance on quantum and scope of duty in this context.
The issues for the court included whether the valuations complained of were negligently produced, having regard to the margin of error appropriate to the property type and market conditions; whether and to what extent the lender had reasonably relied on the valuations; and how to apply the scope of duty principle laid down by the House of Lords in South Australia Asset Management Corporation v York Montague Ltd [1997] AC 191 (SAAMCO) to the lender’s losses.
A central practical question was whether the relevant valuer’s instruction was an “information” or “advice” case under SAAMCO terminology — the former limiting recoverable loss to the consequences of the information being wrong (typically the over-valuation), the latter exposing the valuer to the full consequences of the lender’s transaction. Contributory negligence on the part of the lender’s own credit risk processes was a further issue.
Without seeking to summarise the precise figures, the court approached the case as a typical lender claim against a valuer. It applied the established framework, asking first whether the valuations fell outside the margin of error appropriate to the property type and market, and second, where breach was established, what part of the lender’s loss fell within the valuer’s scope of duty.
The judgment confirmed that the valuer’s duty in routine mortgage valuation cases is to provide accurate information rather than overall transactional advice. Liability is therefore generally limited to the consequences of the information being wrong, that is, the amount by which the valuation exceeded the true value at the date of the report (the SAAMCO cap), and not to the full extent of the lender’s loss on the loan which may include falls in the market and borrower default risk for which the lender bears the consequences.
The court also addressed contributory negligence, considering whether the lender’s underwriting standards — including loan to value ratios, treatment of self-certification and the absence of independent checks — fell below the standard of a reasonably prudent specialist lender. Where contributory negligence was made out it produced a reduction in recoverable damages.
A valuer instructed to provide a mortgage valuation owes a duty of care to provide an accurate figure within the margin of error appropriate to the property and the market. The scope of that duty is determined under SAAMCO; in standard mortgage valuation cases the valuer provides information rather than advice, and damages are capped at the amount by which the negligent valuation exceeded the true value at the date of the report. The lender’s own underwriting practices may give rise to a finding of contributory negligence reducing recoverable damages.
The Mortgage Express v Countrywide litigation is representative of the post-2008 wave of lender claims against high volume residential valuers that materially reshaped surveyor PI underwriting. PI insurers responded by tightening valuation work proposal questions, introducing aggregate limits or per-occurrence sub-limits for lender-driven claims, applying valuation-specific excesses and, in some cases, declining or restricting cover for self-certified and high LTV products.
The case is important for its careful application of SAAMCO in a lender context. By confirming the “information” characterisation in routine valuations and the resulting cap on damages, the decision provides a practical framework that valuers and their insurers use in claim handling, reserves setting and litigation strategy. The contributory negligence analysis is also significant for insurers facing claims by lenders whose own credit processes contributed to the loss.
For brokers placing valuer PI cover, the case underlines the need to discuss with the underwriter the firm’s exposure to specialist and high LTV lender panels, the firm’s volume of mortgage valuations, and the historical claim profile. Run-off cover, aggregate limits and the scope of dishonesty and fraud exclusions are commonly negotiated with this body of case law in mind.
By Matt Bartlett, Director, on 2026-06-06. Next review: 2026-12-06.
This entry is part of the Apex Insurance Wiki. Last reviewed by Matt Bartlett on 2026-06-06. Apex Insurance Brokers Limited, FCA FRN 724952, Companies House 07014570. Not regulated advice — consult your broker on your specific position.
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