Dunn v Hanson Australasia Pty Ltd

In Dunn v Hanson Australasia Pty Ltd, the dispute arose from a building contract where the plaintiff, Mr Dunn, claimed that the defendant, Hanson Australasia Pty Ltd, breached several terms of the contract and statutory warranties, resulting in significant defects in the construction of a building. The matter was heard in the Supreme Court of New South Wales. Mr Dunn sought damages for the failure to rectify these defects and claimed that the breaches constituted misleading and deceptive conduct under the Australian Consumer Law.

The primary legal issues in this case revolved around the identification and quantification of damages for the breaches of contract and statutory warranties. The court was required to determine whether the defendant's actions constituted misleading or deceptive conduct and, if so, the extent of the damages for such conduct. Another key issue was the calculation of damages, including whether the damages were to be apportioned between multiple parties and the application of the "building action" and "apportionable claim" principles.

The court held that the defendant had indeed breached the contract and statutory warranties by failing to rectify the defects in the building. It was found that the breaches also amounted to misleading and deceptive conduct. In assessing the quantum of damages, the court applied principles of proportionate liability and contribution. It concluded that the damages should be apportioned among the parties involved, taking into account their respective roles and responsibilities. The court awarded damages to Mr Dunn, reflecting the diminution in value of the building due to the defects and the costs associated with rectifying them.

The court ordered that the defendant, Hanson Australasia Pty Ltd, pay the plaintiff, Mr Dunn, a sum of money representing the damages for the breaches of contract, statutory warranties, and misleading and deceptive conduct. The court also directed that the damages be apportioned among the parties according to their respective contributions to the breaches.