[2025] QCAT 529
General information, not legal advice.
Queensland Civil and Administrative Tribunal
2025-12-11
Original judgment source is linked above.
CONTRACTS - BUILDING, ENGINEERING AND RELATED CONTRACTS - THE CONTRACT - CONSTRUCTION OF PARTICULAR CONTRACTS AND IMPLIED CONDITIONS - OTHER MATTERS - where the parties entered into a residential building contract - where the work involved renovation of an existing dwelling - where the construction proceeded on agreed non-standard stages of work - where decking work was delayed because there was no approval for the work - where some decking work was done and the owners paid the progress claim for the decking work - where the remaining work on the deck was set aside for completion when approval was to hand - where the parties agreed on an extension of time for completion pending Council approval - where the contractor continued other work and claimed completion of the painting and fit-off stage -where approval for the decking was obtained and the deck was completed at practical completion stage - where the contractor claimed practical completion had been achieved outside the extended date for practical completion - where the owners refused to pay either the painting and fit-off progress claim or practical completion claim or a claim for extra work performed outside the original scope of work - where the contractor commenced proceedings in the Magistrates Court for the outstanding stage payments and for the costs of the extra work - where the owners counter claimed for defective and incomplete work and liquidated damages for delay - where the parties agreed to transfer the proceedings to the Tribunal - where it was found the contractor had an accrued right to payment of the painting and fit-off stage of work and payment of an extra tiling work variation but no entitlement to claim payment for practical completion- where the contractor had validly terminated the contract on the repudiation of the contract by the owners by commencing proceedings in the Magistrates Court
BH Australia Constructions Pty Ltd v Kapeller [2019] NSWSC 1086
Cochrane v Lees [2021] QCATA 74
County Securities Pty Limited v Challenger Group Holdings Pty Limited & Anor [2008] NSWCA 193
Hawach v A & A Building Services Pty Ltd [2025] NSWSC 1174
Mann v Paterson Constructions Pty Ltd [2019] HCA 32
McDonald v Dennys Lascelles Ltd [1933] HCA 25
Miller v Lida Build Pty Ltd [2015] QCATA 137
Mousa v Vukobratich Enterprises Pty Ltd [2019] QSC 49
Munro v Camdun Pty Ltd t/as Asset Carpentry & Building Supplies [2024] QCAT 452
Perri v Coolangatta Investments Pty Ltd [1982] HCA 29
Queensland Vedic Cultural Centre Pty Ltd v Lal [2022] QCATA 50
Realestate.com.au Pty Ltd v Hardingham; RP Data Pty Ltd v Hardingham [2022] HCA 39
Shepherd v Felt and Textiles of Australia Ltd (1931) 45 CLR 359
Thompson Residential Pty Ltd v Hart & Anor [2014] QDC 132
High Set Brick, 3 Bedrooms Upstairs, 1 Bathroom Upstairs.
Renovate to extend Deck and re-roof to match existing roof line, install new roofing section to allow for height along veranda, install new entrance and veranda along front of house, render entire outer of house, Replace roof tiles with Tin, Install second bathroom upstairs, Reconfigure existing bedrooms upstairs to include walk in robe and ensuite, remove fireplace and install bi-fold doors, sheet ceiling of Kitchen and Lounge areas, reconfigure recreational areas under house, install concrete slab and shed.
(a) Was the builder entitled to claim progress payment 6?
(b) Was the builder entitled to claim progress payment 7?
(c) Did the builder perform additional variation work and if so is the builder entitled to claim for it?
(d) Is the owner entitled to claim late completion (liquidated) damages?
(e) Are the owners entitled to claim costs for rectification of defective or incomplete work or both?
These documents are documents that form part of this contract and are in addition to any special conditions, these general conditions, the specifications and the plans.
[44] As this Court held in Toll, a person who signs a contractual document conveys a representation to a reasonable reader of that document that the person has read and approved its terms or is willing to take the chance of being bound by its contents. If the document on its face appears to be a complete contract, it will contain the whole of the contractual terms. Extrinsic evidence cannot be adduced to subtract from, add to, vary or contradict those terms, except in limited circumstances. And a term will be implied only if, among other things, it is necessary to make the contract work.
[45] The approach differs when a court is confronted with an informal contract. The first task is to consider the evidence and to find the relevant terms of the contract. Ascertaining the terms is a question of fact. The issue is not one of interpretation, because there are no definitive words to interpret; "we are here concerned not with construing a contract but with evidence as to what the terms of a contract were". The issue is one of fact and substance, not mere form: what did the parties - here H/REMA and each of the agencies - agree?[5]
(footnotes omitted)
[7] A need to identify the particular subject matter of the contract has often arisen, even in the case of a written agreement where there is a form of words to be interpreted. In the present case, the subject matter and the concomitant terms of the contract must be inferred from a combination of surrounding circumstances including conversations, documents and conduct none of which provide a definitive form of words. The issue is not one of interpretation, because there are no words to interpret. The issue is one of fact: what did the parties agree?
[8] In the absence of a written document or a conversation constituting the Transfer Agreement in the relevant respect, it is necessary for the Court to consider the full range of relevant surrounding circumstances when determining the subject matter and terms of the contract. Principles of law based on the parol evidence rule are not applicable.
...
[17] In the case of an oral contract, when the issue is not interpreting words but determining the subject matter of the contract as a fact .... The relevant surrounding circumstances extend to both pre-contractual and post contractual conduct.
...
[20] Where what is in issue is the identification of the subject matter of the contract, or the identification of necessary terms which were not the subject of express provision in a contract not reduced to writing, then consideration of post contractual conduct does not contravene the reasons underlying the principle.
[21] ... In my opinion, subsequent conduct, especially how a contract for purchase and sale was settled, is relevant, on an objective basis, to the identification of the subject matter of the contract or the determination of necessary terms, as distinct from deciding the meaning of words.
...
[24] ... Where, as here, the issue is the identification, as a matter of fact, of the subject matter of the contract, as distinct from the interpretation of the contract, subsequent conduct ... is, in my opinion, entitled to significant weight.
The ultimate question is what reasonable people with knowledge of the background circumstances then known to both parties would be taken by their words and conduct to have agreed.[6]
It is clear that in the case of a contract which is partly written and partly oral, regard may be had to the whole of the circumstances. The parol evidence rule applies only to contracts which are wholly in writing: see Masterton Homes Pty Ltd v Palm Assets Pty Ltd [2009] NSWCA 234; 261 ALR 382 at [90(3)]. The non-written components of a contract which is not wholly in writing give rise to questions of primary fact, which are capable of being proven in the usual way, including by conduct after the event which bears upon those matters. In particular, an admission after the event may be powerful evidence supportive of a particular aspect of a contract. Indeed, Stephenson LJ said for the Court of Appeal in Mears v Safecar Security Ltd [1983] QB 54 at 77 that:
"Common sense suggests that [the parties'] subsequent conduct is the best evidence of what they had agreed orally but not reduced to writing, though it is not evidence of what any written terms mean... ."
Was the builder entitled to claim progress payment 6?
[68] It seems to me that the approach of Samuels JA is applicable in the case of the clause in this contract governing progress payments, clause 4. Clause 4.1 provides that the owner "must pay the contract price adjusted by any addition or deductions made under this contract progressively at each stage." Clause 28.2(a) provides that the owner is in substantial breach of this contract if the owner does not pay progress payments as required by cl 4. Accordingly cl 4 is a significant term of the contract, but it does not in terms impose upon the builder a specific obligation to complete each stage of the works. The obligation on the builder to complete the works is in clause 3.1, which obliges the builder to complete the works (as a whole) on or before the end of the building period stated in item 10, as extended under cl 17. Breach of that obligation is not a substantial breach of the contract: cl 28.1. Indeed, cl 32.1 provides expressly for liquidated damages in the event of the works not reaching practical completion by the end of the building period.
[69] The question therefore is whether the contract is to be construed as one where completion of a particular stage of the work is a condition precedent to payment of the progress payment in relation to that stage, or is one where a failure to complete is seen as a breach of a non-essential term not disentitling the builder to contractual payment. In circumstances where there is no separate obligation on the builder to complete the work required for each particular stage, a failure to do so cannot be characterised as a breach of a non-essential term: it is not a breach of a term at all. The position is simply that the contract provides that, if the builder does X, the owner is obliged to make a specific payment. In these circumstances, I cannot see how the doctrine of substantial performance can apply. Unless the builder does X, the obligation to make the payment does not arise.
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[72] ... The practical question is not whether what has been done can properly be described as a completion of "the enclosed stage", but whether what has in fact been done can be said to constitute satisfaction of the definition of "enclosed stage" in the contract. Commercial contracts are usually to be interpreted in a commonsense practical way, and building contracts in particular need to be interpreted in a practical and workable fashion. But I do not think that justifies any substantial difference between what has occurred and what is required. Obviously the difference between what has occurred and what is required might be so slight or trivial that it could be said that in a practical sense the definition had been satisfied. Thus, if the owner could find one loose tile on the roof I do not think that it could be said that that in itself meant that it was not correct to say that the roof covering was fixed.
[73] ...On the whole, it seems to me that the test is whether the omissions are slight or trivial. Another way would be to describe the disparity between what was done and what was required as coming within the maxim: de minimis non curat lex.
(footnotes omitted)
(a) have been completed in accordance with this contract and all relevant statutory requirements apart from minor defects or minor omissions; and
(b) are reasonably suitable for habitation.
Deck complete to existing Eastern end. Including treated/stained, bifold, lights, power points, roof, handrails and stainless-steel wire.
- Power points can be 1 for where TV going above bifold, and below on wall.
The location of the power outlet and the aerial outlet was supplied to the plaintiff by the defendants and marked on the wall. The outlet remained in the position it was, and the aerial cable has no outlet, it just hangs on the wall. This was discussed by the defendants with the plaintiff on several occasions, and at a meeting at the house on 14 April 2022.
Cost or rectification $750
The fact that the appellant's misconduct was unknown to the respondent at the time of the termination of the agreement is quite immaterial. If there were, in fact, any circumstances in existence at the time of the termination of the agreement which could have justified the respondent in so terminating it, then it may justify the termination by subsequent proof of those circumstances....
When a party to a simple contract, upon a breach by the other contracting party of a condition of the contract, elects to treat the contract as no longer binding upon him, the contract is not rescinded as from the beginning. Both parties are discharged from the further performance of the contract, but rights are not divested or discharged which have already been unconditionally acquired.
Was the builder entitled to claim progress payment 7?
[84] What accrued rights had the builder as at date of termination? He had performed and completed the various stages of work and been paid for them save for the final, practical completion stage. It appears that he had performed most of the physical work necessary for the stage, but what he had not done was to obtain final certification and perform those steps necessary and stipulated to be done by clause 28.2. That was no small thing, as referred to above.
[85] By clause 28.5, only when Mr Lees had satisfied all the obligations under clause 28.2 were the Cochranes required to immediately pay him the progress claim for the Practical Completion stage. Mr Lees did not do that and accordingly he was not entitled to recover the Practical Completion stage payment.
Did the builder perform extra work and if so is the builder entitled to claim for it?
And there was no discussion about a variation?‑‑‑Well, I - there was discussions, but Brendan always just said that he wasn't paying any variations, and for me to complete the job, I just had to wear it.
Was there a discussion between you ?‑‑‑Yeah.
orally about a variation, say, for item 1, plumbing to roof?‑‑‑Yeah. There was discussions about variations, yeah.
And do you say there was an agreement, orally, for you to perform additional work?‑‑‑No. There wasn't additional work, it was just the cost that it ended up being.[13]
MR WHITE: Then we come to item 3, "extra tiling to the ensuite"?‑‑‑Yep.
I'd suggest that this item did actually require an extra 10.12 square metres worth of tiling on the ensuite, but not the 22 square metres that you've claimed for there?‑‑‑So the tiling in the ensuite was exactly the same as the tiling in the other bathroom. So tile to ceiling in shower, skirting tile everywhere else.
But you didn't do the tile to ceiling ?‑‑‑Tile to ceiling everywhere in that ensuite, every wall.
Where was it that you didn't do the tiling to the celling, do you say?‑‑‑Was - that was in the other bathroom.
Okay?‑‑‑The four - four extra tiles.
All right. So it's the case that, whilst you did an extra portion of tiling here, you omitted a portion of tiling elsewhere?‑‑‑Well, it's just - it's just what the tiler did.
(c) award damages, and interest on the damages at the rate, and calculated in the way, prescribed under a regulation;
(1) For section 77(3)(c) of the Act, interest is payable on the amount of damages awarded -
(a) if the parties have entered into a contract - at the rate provided under the contract; or
(b) at the rate agreed between the parties; or
(c) otherwise - at the rate of 10%.
(2) The interest is payable on and from the day after the day the amount became payable until and including the day the amount is paid.
[37] The Tribunal has power to award interest on damages at the rate and calculated in the way, prescribed under regulation 34B of the Queensland Building and Construction Commission Regulations 2003 (Qld). Regulation 34B(2) provides that interest is payable on and from the day after the day the amount became payable. Until a decision to award damages is made no amount is payable.
[1] Neither of the invoiced progress claims (6 and 7) precisely matched the amounts set by the progress payment table to the contract (under the contract the amounts due on completion of stage 6 and 7 was $55,908.80) but the discrepancy is unexplained and apparently not in issue.
[2] Dated 6 December 2021, 30 December 2021 and 1 February 2022
[3] Hawach v A & A Building Services Pty Ltd [2025] NSWSC 1174, [76], [78].
[4] The generic general conditions matches all the named clauses to the general conditions and matches the clause numbering. The items in the schedule referred to in the generic conditions and the pagination however do not.
[6] Hardingham [15] (Kiefel CJ and Gageler J).
[10] A common law right to terminate and claim general damages for breach of contract is always available, and it has been said that there must be clear words in the contract to claim that that is not the case: Mazelow Pty Ltd v Herberton Shire Council [2002] QCA 119.
[11] [1933] HCA 25; (1933) 48 CLR 457, 476-7.
[16] Munro v Camdun Pty Ltd T/A Assett Carpentry & Building Supplies Pty Ltd [2024] QCAT 452, [119].
Currie
Wright [2025] QCAT 529
(1931) 45 CLR 359
(1933) 48 CLR 457