Proving Major Building Defects Under the Home Building Act

What qualifies as a major defect in residential buildings under NSW law? Defects can range from minor issues to serious structural problems, but understanding the legal definition of a 'major defect' under section 18E(4) of the Home Building Act 1989 (NSW) is critical before making a claim. This article explains the key criteria, recent case law, and why these distinctions matter for homeowners, builders, and developers.

Defects in residential buildings can be classified as minor or major defects depending on the severity of the defect and the effect of it on the habitability and structure of the building or part of it. The term "major defect" is defined in section 18E(4) of the Home Building Act 1989 (NSW) (HBA). While the definition is somewhat technical, understanding what it means and how it applies is essential before making a claim against a builder or developer.