Paratus AMC Ltd v Countrywide Surveyors Ltd [2011] EWHC 3307 (Ch) is often cited on contributory negligence in lender claims against valuers. The lending was on a self-certified basis at a high loan-to-value ratio during a period of relaxed underwriting. When the borrower defaulted, the lender pursued the valuer for the shortfall, alleging the property had been overvalued.
The court considered both whether the valuation was negligent and whether the lender's own conduct contributed to its loss. Where a lender adopts a lending model that carries obvious risk, for example self-certified lending at a high loan-to-value ratio, a court may find that the lender shares responsibility and reduce the recoverable damages under the Law Reform (Contributory Negligence) Act 1945. The valuer's liability is measured after that reduction.
Paratus sits within the body of post-2008 valuation litigation in which lender behaviour is squarely in issue. For the surveyor, it confirms that the defence is not only about the accuracy of the figure but about the whole transaction, including the criteria on which the lender chose to advance.
Paratus shows the practical value of a contributory negligence defence in valuer claims. Apex explains how defence strategy and cover interact on its surveyors' PI guide, and the related agency exposures on the estate and letting agents' PI guide. A claim figure is a starting point; the recoverable loss after apportionment is frequently a good deal lower.
The value of a contributory negligence defence is that it operates even where the valuation is found to be negligent. In Paratus and the wider run of post-2008 cases, the lender's own decisions, self-certified lending, high loan-to-value ratios, relaxed underwriting, were treated as part of the causal picture of its loss. A finding that the lender bore a share of responsibility reduces the damages the valuer actually pays, sometimes substantially.
For a firm and its insurer, this makes the lender's process a central line of enquiry from the outset. Disclosure of the underwriting criteria, the lending policy and the individual decision to advance can turn a full claim into a much smaller net figure. It also affects how a claim is reserved and how negotiations proceed, because a strong apportionment argument changes the realistic settlement range. The lesson is that the headline claim figure is a starting point; the recoverable loss after apportionment is frequently a good deal lower, and worth pursuing.
Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority. Firm reference number 724952. This entry is general information, not advice on any particular policy.