Six years and two years: the clock on a NSW build

In short: Statutory warranties under the Home Building Act do not last forever, and the two year window goes quickly.

The two periods

Six years for major defects and two years for everything else, running from completion, under the Home Building Act 1989.

Broadly a defect in a major element that makes the home uninhabitable or unusable for its purpose, or threatens collapse.

Because it decides whether you are inside the window. A builder has an obvious interest in an item being minor.

Cites what the defect is and what element it affects, in terms that let the category be argued on the facts.

Get a written list before the two year mark. An item raised in writing inside the period is a different conversation to one raised after it.

Written by the Owner Inspections team from inspections carried out in Box Hill. Licensed building practitioners, NSW Fair Trading licence 366177C.

More defect reports guides for Box Hill

8 April 2026 · 8 min read

Capping, caulking, cracking and a ponding gutter, all telling the same story.

6 May 2026 · 7 min read

Most building arguments are about permission, not about facts.

25 February 2026 · 8 min read

A hole the size of a pen tip in the one layer that must not have holes.

Questions Box Hill owners ask about this

When does the clock start?

From completion of the work, which is usually your handover date. Confirm the date on your contract.

Does raising an item stop the clock?

It creates a record that the item existed within the period, which is what matters if it later becomes a dispute.

Is a two year inspection worth it?

For many owners yes, precisely because it lands before the shorter warranty expires while defects are still emerging.

What if the builder is gone?

The Home Building Compensation Fund through icare exists for that situation, subject to its own rules and thresholds.