Westpac Banking Corporation v Diagne

In the case of Westpac Banking Corporation v Diagne, the dispute revolved around the enforcement of a mortgage and related financial obligations. The bank sought to recover a debt from the defendant, asserting that the defendant had defaulted on a mortgage. The case was heard in the Supreme Court of New South Wales. The central legal issues included whether the mortgagor could avail herself of the Yerkey v Jones defence, the applicability of an implied warranty of fitness for purpose, and the existence of a duty of care in tort by the bank towards the borrower. Additionally, the court considered whether the bank's conduct was misleading or deceptive under the Australian Securities and Investments Commission Act 2001, and whether an order for post-judgment interest should be granted.

The court addressed the Yerkey v Jones defence, finding that it was unavailable to the defendant as her wife had directly benefited from the guarantees provided. Regarding the implied warranty of fitness for purpose, the court determined that section 7 of the Contracts Review Act 1980 did not permit such a warranty to be implied under the Australian Securities and Investments Commission Act 2001. Furthermore, the court concluded that the bank did not owe a duty of care to the borrower, thereby dismissing the claim of negligence. The court also found that the bank's conduct did not contravene section 12DA of the Australian Securities and Investments Commission Act 2001. Finally, the court ruled on the matter of post-judgment interest, determining that such an order should be made.

The court ordered the defendant to pay the bank's costs and granted a judgment in favour of the bank. The judgment included an order for post-judgment interest from the date of the initial judgment until satisfaction of the amount owed. The court further directed that interest would continue to accrue on the unpaid balance until the judgment was fully satisfied.