Defects liability in Queensland: QBCC Act Schedule 1B warranties and time limits

What defects liability means in Queensland

Queensland regulates residential building work through the Queensland Building and Construction Commission Act 1991 (Qld). Schedule 1B of the Act implies a set of statutory warranties into every "regulated" residential building contract. These warranties form the legal foundation for defect claims against a builder in Queensland.

The Queensland framework differs from NSW and Victoria in two important ways. First, QLD has its own time-limit split that does not match either neighbour. Second, the QBCC is one of the strongest residential building regulators in Australia, with broad enforcement powers attached to the warranty regime.

The seven statutory warranties

Schedule 1B implies seven warranties into every regulated residential building contract in Queensland. In substance the builder warrants that:

• The work will be carried out in an appropriate and skilful way, with reasonable care and skill
• All materials supplied will be good and suitable for their purpose
• Materials will be new unless the contract says otherwise
• The work will comply with all relevant laws and legal requirements
• The work will be carried out in accordance with any plans or specifications in the contract
• A detached dwelling or home will be suitable for occupation once the work is completed
• Any provisional sum has been calculated with reasonable care and skill

These warranties cover the substance of the work, the materials used, the legal compliance and the financial estimates a builder gives the owner. The provisional sum warranty is unusual to QLD: it requires the builder to estimate provisional sums with reasonable care, exposing the builder to claims where an estimate proves materially wrong.

Time limits: 6 years and 1 year

Schedule 1B clause 43 sets the warranty period for proceedings to enforce the statutory warranties. The period is:

• 6 years for a breach that results in a structural defect (as prescribed by regulation)
• 1 year in any other case

Both periods run from completion of the relevant building work, not from contract signing or occupancy.

This is a significantly tighter regime than NSW (6 years major defect, 2 years other) and very different from Victoria (single 10-year period from occupancy permit). A Queensland homeowner with a non-structural defect has only 1 year to act; the same defect in Victoria has 10 years.

The 6-month safety-net extension

If the breach of warranty becomes apparent within the last 6 months of the warranty period, proceedings may be started within a further 6 months after the warranty period ends. This safety-net prevents a homeowner losing the claim because a defect emerged just before the deadline.

For structural defects this means a defect appearing in year 5 (months 54 to 60 from completion) can still be claimed up to month 66. For non-structural defects appearing between months 6 and 12, the homeowner has until month 18 to lodge proceedings.

Successors in title and non-excludability

Schedule 1B extends the statutory warranties to subsequent owners of the property within the warranty period. A buyer who purchases a Queensland home four years after completion can pursue the builder for a structural defect that emerges, provided the claim is brought within the original warranty period plus any safety-net extension.

The Schedule 1B warranties are not capable of being signed away. Any contract clause that attempts to exclude, modify or limit the warranties is void to the extent of the inconsistency. Template "limitation of warranty" clauses in bespoke contracts have no effect in Queensland regulated residential work.

Cross-jurisdiction comparison

The three eastern states diverge meaningfully on defects liability.

Queensland: 6 years structural and 1 year non-structural, both from completion of the work. Schedule 1B of the QBCC Act 1991.

NSW: 6 years major defect and 2 years for any other defect, both from completion. Section 18E of the Home Building Act 1989.

Victoria: 10 years for all building actions, from issue of the occupancy permit. Section 134 of the Building Act 1993.

A builder operating across Queensland, NSW and Victoria carries different time-window exposures in each state for the same defect type. The differences also affect record-retention obligations.

Practical implications

For Queensland residential builders, three things follow from the warranty regime.

Keep records for at least 6 years and 6 months from completion of structural elements (the warranty period plus safety-net). For multi-storey or major structural work, this is the minimum record-retention window.

Treat structural defects differently from non-structural defects in defect rectification. The 6-year exposure on structural defects is substantially longer than the 1-year exposure on non-structural defects. A clean rectification of a non-structural defect within the contractual defects liability period typically closes the matter.

Document provisional sum calculations. The provisional sum warranty is a QLD-specific exposure that does not exist in NSW or VIC. Builders should retain the documents supporting how each provisional sum estimate was calculated.

Related entries

For the NSW equivalent see defects-liability-period-nsw-v2. For the Victorian equivalent see defects-liability-period-vic-v2. The QBCC contractor licence framework that underpins who can do regulated residential work is a forthcoming QLD entry. The QBCC Home Warranty Insurance Scheme that backs the warranties when the builder fails is also a forthcoming QLD entry.