Masterton Homes Pty Ltd & Anor v LED Builders Pty Ltd

Masterton Homes Pty Ltd and another party (the appellants) appealed to the High Court of Australia against a decision of the Supreme Court of New South Wales. The dispute concerned the interpretation of a building contract and the extent of the builder's liability for defects in the construction of a dwelling. The appellants argued that the Supreme Court had erred in its findings regarding the builder's obligations and the quantum of damages awarded.

The High Court was required to determine whether the builder had breached the building contract by failing to construct the dwelling in a proper and workmanlike manner, and whether the defects identified constituted a breach of the implied warranty of fitness for purpose. Further, the Court had to consider the appropriate measure of damages for such breaches, specifically whether the cost of rectification was the correct approach or if diminution in value was more appropriate.

The Court analysed the terms of the building contract, paying close attention to clauses relating to the standard of work and the builder's responsibilities. It applied established principles of contract law, including the implied terms in contracts for the supply of services and goods. The Court found that the builder had indeed breached the contract by failing to exercise due care and skill in the construction. Regarding damages, the Court affirmed that the cost of rectification is generally the appropriate measure for defects, provided the rectification work is reasonable and necessary, and not disproportionate to the benefit gained. The Court considered the evidence presented regarding the nature and extent of the defects and the cost of rectifying them.

The High Court allowed the appeal in part, varying the damages awarded by the Supreme Court. The Court confirmed the builder's liability for the defects but adjusted the quantum of damages to reflect a more accurate assessment of the reasonable cost of rectification.