Key Nominees Pty Limited v Ace Insurance Limited

Key Nominees Pty Limited, a mortgagee, filed a claim against Ace Insurance Limited, the insurer of a property used as security for a loan. The dispute centred around the negligent valuation of the property by the insurer, which led to the lender exercising its power of sale and selling the property at public auction. However, the net proceeds from the auction were insufficient to cover the borrower's outstanding debt. Key Nominees brought a claim for the shortfall directly against Ace Insurance under section 6 of the Law Reform (Miscellaneous Provisions) Act 1946, seeking to hold the insurer liable for the lender's losses due to the negligent valuation.

The court needed to determine whether the insurance policy responded based on the date the cause of action arose. A significant legal issue was whether a breach of duty that caused a person to enter into a disadvantageous transaction, which merely posed a risk of economic loss, constituted a cause of action at the time of the transaction. The court also needed to establish whether the contingent loss became actual at the time of the borrower's default or at the time of the auction when the shortfall materialised.

The court found that the cause of action did not arise at the time of the borrower's default or the transaction but only at the time of the auction when the shortfall became crystallised and actual. This meant that the insurer's liability under the policy depended on the date when the cause of action accrued. The court determined that the balance of the proceedings should go to trial to determine the insurer's liability and other related issues. Additionally, Ace Insurance was ordered to pay Key Nominees' costs of the separate question on the ordinary basis.

The court's decision hinged on the precise timing of when the cause of action accrued, which was a pivotal factor in determining the insurer's liability. The court's ruling underscored the importance of understanding the nuances in the timing of when a cause of action arises in professional negligence cases involving insurance policies.