Defect Notification Requirements in Queensland Residential Building

What it is

Queensland runs defect notification through two parallel channels. The QBCC direction-to-rectify policy sets specific application windows for regulator action. Section 29 of Schedule 1B of the Queensland Building and Construction Commission Act 1991 (Qld) sets the warranty period for a QCAT proceeding. The two windows do not align, so a defect can be inside one and outside the other.

Neither channel imposes a bright-line owner notification duty comparable to section 18BA of the Home Building Act 1989 (NSW). Notification runs through the QBCC complaint process and through general law contract obligations of reasonable notice and mitigation.

QBCC direction-to-rectify application windows

QBCC direction-to-rectify policy sets the practical notification framework for defects the regulator can address. The application windows:

• structural defects: 6 years 3 months from completion
• non-structural defects: 12 months from completion
• hard statutory cap: 6 years 6 months from completion

Those are the windows within which an owner must lodge a QBCC complaint seeking a direction to rectify. Miss the window and QBCC will not issue a direction, though the owner may still proceed through QCAT under the section 29 warranty periods.

The 12 month window for non-structural defects is unusually short. An owner who notices a cosmetic finish defect at 10 months has 2 months to lodge with QBCC before the direction-to-rectify pathway closes. Beyond 12 months the owner is on the QCAT pathway only.

Section 29 QCAT warranty periods

Section 29 of Schedule 1B of the QBCC Act sets the periods for statutory warranty proceedings:

• 6 years from completion for a structural defect
• 1 year from completion for other defects
• 6 month tail under section 29(2) where the defect becomes apparent in the last 6 months of the applicable period

A defect notified 15 months after completion is out of time as a statutory warranty claim if non-structural. The 6 month tail under section 29(2) does not extend the base period; it only allows late-emerging defects a 6 month window to run.

No statutory owner notification duty

Schedule 1B does not impose a specific owner notification duty comparable to section 18BA of the NSW HBA. Notification of a defect during the DLP or under the section 29 warranty is a contract matter or a general law matter.

The QBCC complaint form is the practical notification vehicle. Once lodged, QBCC forwards the complaint to the builder and starts the early dispute resolution process. The complaint identifies the defect, the property and the builder.

Contractual defects liability period

Most Queensland residential building contracts run a contractual DLP of 3, 6 or 12 months from practical completion. During the DLP the builder must attend to notified defects at its own cost. Notification is typically required in writing to the builder or the builder's supervisor.

The QBCC contract requirements at section 14 of Schedule 1B do not fix a mandatory DLP length. Industry standard forms (MBQ, HIA) generally use 12 months for structural elements and 3 or 6 months for other work.

QHWS scheme notification

The Queensland Home Warranty Scheme has its own notification framework. Claims must be lodged with QBCC (the scheme administrator) within specified windows after the trigger event of builder death, disappearance, insolvency or licence cancellation. The QHWS claim runs alongside the section 29 warranty pathway, not instead of it.

Non-completion cover applies where the builder does not finish the work. Defects cover applies where a defect emerges within the scheme period. Missing the QHWS notification window can bar the insurance claim independently of the section 29 or QBCC direction pathway.

Perera v Bold Properties on price-change notification

Section 14(6) and (7) of Schedule 1B require price-change clauses to carry a first-page warning and explanation. In Perera v Bold Properties [2023] QDC 99 a non-compliant escalation clause was held void. That is a price notification decision rather than a defect notification decision, but it signals how strictly QLD courts read Schedule 1B notification and disclosure requirements. Defect notification obligations, though less explicit, sit inside the same interpretive frame.

How Queensland compares

Queensland runs a hybrid: no explicit owner notification duty in the Act, but strict QBCC application windows that function as de facto notification timeframes. The 12 month non-structural window is the shortest of any Australian regulator direction pathway and puts real pressure on owners of QLD builds to lodge cosmetic complaints promptly.