Sunshine Coast Building and Construction Lawyers advise homeowners, builders, subcontractors and developers about building contracts, variations, delays, defects and unpaid work. The right response depends on the contract, the parties and the remedy sought. A homeowner may need QBCC assistance and a QCAT building dispute application; a subcontractor may have a security-of-payment claim with deadlines measured in business days. Before withholding payment, terminating a contract or engaging a replacement builder, identify the legal basis, preserve the evidence and check every applicable deadline.
What Sunshine Coast Building and Construction Lawyers should assess first
A disagreement about a renovation in Buderim is not necessarily governed by the same rules as a subcontract payment dispute on a commercial project in Maroochydore. Start with the legal relationship. Who contracted with whom? What work was promised? Is the owner living, or intending to live, in the property? Has the work stopped, and has anyone purported to terminate?
Those questions affect statutory protection, payment remedies and forum. Sunshine Coast Building and Construction Lawyers should distinguish a regulated domestic building contract under schedule 1B of the Queensland Building and Construction Commission Act 1991 (Qld) from other construction arrangements. The definition and exclusions matter; “residential project” is not a complete legal classification.
The first advice should also identify the immediate risk. An unanswered payment claim, an expiring warranty period and a threatened termination require different work. A lengthy complaint about the history of the project does little good if tomorrow’s deadline is missed.
| Problem | First documents to examine | Question that drives the advice |
| Price increase or disputed variation | Signed contract, scope, allowances and variation records | Is the extra work outside the original scope, and was the required process followed? |
| Late completion | Completion provisions, notices, programme and site records | Is the claimed extension available, and what delay actually affected completion? |
| Defective work | Plans, specifications, photographs and expert findings | What obligation was breached, and what repair is necessary and reasonable? |
| Unpaid progress claim | Contract, claim, payment schedule and delivery records | Does statutory payment legislation apply, and when does time expire? |
| Work stopped or contract terminated | Default notices, responses and termination correspondence | Was there a right to suspend or terminate, and was it exercised correctly? |
Contract review by Sunshine Coast Building and Construction Lawyers
The useful time to question a contract is before signing it. Once the slab is down and the parties disagree about site costs, the available choices are narrower.
Check the contractor’s exact legal identity and relevant licence, the documents incorporated into the agreement, the order of precedence between those documents and the work expressly excluded. A company and its director are different contracting parties. Licence requirements arise under section 42 of the QBCC Act, subject to statutory exemptions. A trading name or a licence number on a quotation should not substitute for checking the proposed contracting entity.
Sunshine Coast Building and Construction Lawyers should explain how the price can change. “Fixed price” does not answer whether the contract contains provisional sums, prime cost allowances, latent condition provisions or an agreed variation mechanism. A low allowance can make an apparently cheaper tender expensive once actual selections or site conditions are known.
For regulated domestic contracts, schedule 1B, section 26(2) warrants that provisional sums and prime cost items have been calculated with reasonable care and skill using the information reasonably available when contracting. That is different from guaranteeing that every allowance will cover the eventual cost.
The contract should make the scope, payment stages, completion requirements, notice procedure and allocation of design responsibility intelligible. Our guide to avoiding construction disputes in Queensland expands on the records and communication practices that support those arrangements.
Deposits and progress payments need separate scrutiny
Under schedule 1B, section 33(1), the usual maximum deposit is 10% for a level 1 regulated contract and 5% for a level 2 regulated contract. A 20% exception applies where off-site work exceeds 50% of the contract price. The categories are defined in schedule 1B, section 6 and section 7. Classification must be checked before applying a percentage.
Schedule 1B, section 34(1) requires non-deposit claims to relate directly to progress on site and be proportionate to the value of the relevant work, or less than that value. An invoice labelled “frame stage” does not establish that the contractual stage has been achieved.
Variations and delays
An instruction to change work should record what changes, what it costs and how it affects completion. Disputes often arise because one participant regards a conversation as approval while the other regards it as a request for a price.
For regulated domestic contracts, schedule 1B, section 40(2) requires the contractor to give the owner a written copy of the variation before the earlier of five business days after agreement and the start of the varied work. Section 40(5) prohibits starting the varied work before the owner agrees in writing. The urgent-work defence in subsection (4) concerns a prosecution for subsection (2); it should not be read as a general exemption from all variation requirements.
Section 41(2) specifies the required contents, including the price change or calculation method and an estimated delay where relevant. Missing paperwork requires legal analysis. It does not justify the blanket proposition that every undocumented variation is automatically free.
Worked example — a kitchen upgrade in Caloundra
Suppose an owner asks for stone benchtops instead of the specified laminate. The builder installs them and later claims another $14,000. The owner accepts discussing stone but says the quoted upgrade was $6,000 and did not include installation extras. This is a hypothetical example.
Sunshine Coast Building and Construction Lawyers would compare the original specification, messages, supplier quotation, written approval and invoice breakdown. The issues include whether a variation was agreed, its terms, statutory compliance and the available basis of recovery. Establishing that the owner received a better benchtop does not, by itself, prove the particular amount claimed.
Rain does not answer every delay claim
Under schedule 1B, section 42(1), a regulated domestic contractor’s extension claim must satisfy specified conditions. These include a qualifying cause, a written claim within 10 business days of actual or constructive awareness of the cause and extent of delay, and the owner’s written approval. The provision addresses unforeseeable events beyond reasonable control, owner-caused delay and compliant variations.
Sunshine Coast Building and Construction Lawyers should test the claimed days against the actual work affected. A wet week does not necessarily justify a week’s extension if the relevant work could proceed indoors. Equally, an owner who delays a necessary selection may affect completion. The contract, statutory requirements and evidence must be considered together.
Defective work and the remedy worth pursuing
A useful defect claim identifies a particular departure from a particular obligation. “The workmanship is poor” is a concern to investigate, rather than a sufficient explanation of liability.
Schedule 1B, section 19 incorporates statutory warranties into regulated contracts. These include suitable materials, subject to the qualifications in section 20, compliance with legal requirements under section 21, and appropriate workmanship and reasonable care and skill under section 22. Where plans and specifications form part of the contract, section 23(2) warrants compliance with them.
Sunshine Coast Building and Construction Lawyers should work with an appropriately qualified expert to identify the cause, responsibility, repair method and reasonable cost. Ask the expert to distinguish defective construction from design issues, maintenance and unrelated damage. Preserve photographs and original records before destructive investigation or repair, while taking necessary steps to address immediate safety or water damage.
Case example — Bellgrove v Eldridge and reasonable rectification
In Bellgrove v Eldridge (1954) 90 CLR 613; [1954] HCA 36, defective foundations and mortar made a house unstable. The High Court upheld damages assessed on demolition and rebuilding. Rectification had to be necessary to achieve contractual conformity and a reasonable course to adopt: see pages 617–619.
The decision does not entitle every owner to the most extensive repair proposed. Sunshine Coast Building and Construction Lawyers need evidence explaining why the claimed solution is necessary and reasonable. A cheaper proposal is not sufficient merely because it costs less; an expensive proposal is not sufficient merely because an owner prefers it.
Worked example — a leaking balcony in Noosa
Imagine a balcony leaks into the room below. One quotation proposes sealing visible joints for $3,000; another proposes removing tiles and replacing the waterproofing system for $38,000. This is hypothetical, not a reported case.
The decisive evidence may concern membrane continuity, falls, drainage and the likely durability of each repair. If sealing joints will not address the defect, its lower price may be beside the point. If targeted work will restore compliance reliably, wholesale replacement needs justification. Document the condition, obtain advice on reasonable access for inspection and rectification, and preserve the evidence before covering it up. Schedule 1B, section 29(6)(b) provides a defence to statutory warranty proceedings where reasonable access to rectify was not given.
Payment claims and Sunshine Coast Building and Construction Lawyers
For contractors, cash flow disputes can move much faster than ordinary damages litigation. Chapter 3 of the Building Industry Fairness (Security of Payment) Act 2017 (Qld) provides a statutory progress-payment and adjudication regime. Its application must be established first.
The resident-owner exclusion in section 61(2)(b) is critical: the chapter does not apply to domestic building work contracts to the relevant extent where a resident owner is a party and resides, or intends to reside, in the building. Check the definition and qualifications in section 61(5). Do not assume the exclusion also removes a subcontractor’s separate claim against a head contractor.
Sunshine Coast Building and Construction Lawyers should check a received invoice promptly against the statutory definition of payment claim in section 68(1) and the requirements in section 75. An ordinary-looking invoice can engage the regime; the document’s label is not decisive.
Under section 76(1), the payment schedule deadline is the earlier of the contractual period and 15 business days after receipt. Section 76(2) provides the exception where the full claimed amount is paid by its due date. The payment due date and schedule deadline are different dates and must be calculated separately.
A payment schedule must identify the claim and state the proposed payment; if that amount is lower, it must give the reasons: section 69. Include every reason for withholding any balance. Under section 82(4), an adjudication response cannot introduce withholding reasons omitted from the schedule. A bare statement that the invoice is “disputed” may leave the respondent exposed.
| Situation | Statutory consequence or adjudication deadline | Source |
| No required payment schedule | Liability for the claimed amount on the payment due date | BIF Act s 77(2) |
| Schedule proposes less than the claim | Apply for adjudication within 30 business days after receiving the schedule | BIF Act s 79(2)(b)(iii) |
| Scheduled amount not paid in full | Apply within 20 business days after the payment due date | BIF Act s 79(2)(b)(ii) |
| No schedule and full claim unpaid | Apply within 30 business days after the later of the due date and the last permissible schedule date | BIF Act s 79(2)(b)(i) |
The table draws on section 77(2) and section 79(2)(b). Where more than one ground might apply, calculate each deadline rather than assuming the longest period is available for every issue. Obtain advice on the applicable definition of business day and proof of service.
A general demand letter does not replace a payment schedule or extend an adjudication deadline. Our article on what to include in a letter of demand explains the different role of that correspondence. Sunshine Coast Building and Construction Lawyers should select the recovery process before sending documents that may affect the next step.
Termination needs more than an allegation of breach
Stopping work, locking a builder out or declaring the agreement “cancelled” can change the dispute substantially. Before acting, identify the contractual or common law right relied on, any required default notice, the opportunity to remedy and the required method of service. Our introductory discussion of different types of contract breaches provides background; the actual termination right still requires advice on the agreement and facts.
Sunshine Coast Building and Construction Lawyers should also consider insurance consequences before advising an owner to terminate and appoint someone else. The QBCC’s guidance on domestic contract and payment disputes expressly warns owners to follow contractual dispute procedures because non-compliance can put Home Warranty Scheme rights at risk.
Case example — Mann v Paterson Constructions and the contract price
Mann v Paterson Constructions Pty Ltd [2019] HCA 32 concerned a terminated contract for two townhouses. The High Court rejected recovery in restitution for completed stages where a contractual payment right had accrued. A majority allowed restitution for certain uncompleted work, subject in that case to a ceiling tied to the relevant contract price. See the Court’s official summary.
The case also addressed variations under Victorian legislation. Those Victorian statutory requirements are not Queensland’s rules. Its relevance here is the warning against treating termination as permission to abandon the agreed pricing structure and simply invoice the “reasonable value” of everything done.
QBCC complaints and QCAT building disputes
The QBCC’s role must be separated from the role of the tribunal. QBCC facilitation of a domestic contractual dispute does not give it power to order payment, decide the contract or compel compliance with a settlement. Its contract dispute guidance explains those limits. Rectification powers are a separate matter under section 72 of the QBCC Act.
Under section 77(2), a person must comply with the commission’s dispute resolution process before applying to QCAT to decide a building dispute. QCAT’s building dispute guidance requires the QBCC outcome letter, or a letter advising no process is required, with the application. The tribunal can refuse or dismiss an application that lacks it.
Sunshine Coast Building and Construction Lawyers should confirm the particular jurisdiction rather than treating QCAT’s minor debt limit as a universal building dispute ceiling. Under section 78, a major commercial building dispute requires all parties’ consent to be decided by QCAT; the schedule 2 definition includes a commercial dispute where either claim or counterclaim exceeds $50,000. Domestic building disputes have a different jurisdictional basis.
Reviewing a QBCC decision is also distinct from seeking relief against a builder. If the real complaint concerns a regulatory or insurance decision, consult our guide to reviewing a QBCC decision and have the decision notice and current review pathway checked immediately.
Time limits are not interchangeable
For statutory warranty proceedings, schedule 1B, section 29(3) specifies six years for a breach resulting in a structural defect as prescribed by regulation, and one year otherwise. For completed work, the period starts on completion. For unfinished work, the provision sets alternative starting points depending on termination, cessation and whether work ever began. Section 29(2) allows a further six months where the breach becomes apparent during the last six months of the warranty period.
Those periods differ from the general six-year limitation for simple contract actions under section 10(1)(a) of the Limitation of Actions Act 1974 (Qld). The existence and accrual of a separate contractual cause of action require analysis; a claimant should not assume that one deadline rescues another.
The QBCC’s defective work guidance sets out separate complaint and rectification timeframes. The Home Warranty Scheme’s defective work guidance has separate insurance requirements, including short notification periods. Verify the applicable policy and dates rather than treating insurance as an automatic six-year guarantee.
Ask Sunshine Coast Building and Construction Lawyers to record the deadline for each proposed remedy in writing. Do not assume that a QBCC complaint, negotiation or proposed mediation stops time for commencing proceedings.
Evidence and settlement
Bring the complete signed contract, schedules, drawings, specifications, amendments, variation records, claims, payment schedules, bank records, site photographs, inspection material, notices and correspondence. Keep original electronic files and a dated chronology. State the outcome you need: payment, a workable repair, completion by someone else or a negotiated exit.
Where proceedings become necessary, the allegations and evidence must match. A pleading should identify the obligations, breaches and loss; an expert report should address the technical issues those allegations raise. Our guide to civil and commercial litigation on the Sunshine Coast explains pleadings, disclosure, evidence and the procedural consequences of an inadequately prepared case.
Sunshine Coast Building and Construction Lawyers should assess settlement against a costed, evidence-based alternative. A repair agreement needs a defined scope, access arrangements, completion date, inspection process and a clear response if the work fails. A payment settlement needs clear amounts, dates and release terms. The parties should understand precisely what claims they are compromising.
Our explanation of alternative dispute resolution methods describes options for resolving disputes without a trial. Mediation becomes more useful when the parties have exchanged the evidence needed to evaluate competing positions.
Winning also needs to produce something recoverable. Before committing substantial costs, investigate the respondent’s financial position and the likely enforcement route. Our guide to enforcing a judgment in Queensland explains why a favourable decision may still require further steps. The value of the claim, the cost of proving it and the prospect of recovery belong in the same advice.
Legal position and linked sources checked on 4 November 2026. The worked examples are hypothetical. This article provides general information; advice on a particular contract requires its documents, facts and applicable deadlines.
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