In CIMIC Morningstar Investment Ltd v Chandos Construction Ltd, 2026 BCCA 2 (“CIMIC Morningstar Investment”), the British Columbia Court of Appeal considered the scope of appellate review of arbitral awards in the context of a delay dispute under a CCDC-2 fixed-price contract.
In doing so, and as discussed below, the Court addressed a number of issues familiar to construction disputes, including contractual notice requirements, the treatment of change orders, the application of the prevention principle, and the limits of appealing fact-driven arbitral findings.
For construction and arbitration practitioners, the decision offers a useful reminder of how delay claims may be assessed in practice and hurdles that parties may face seeking to challenge arbitral awards on appeal.
Background
The underlying dispute arose from the construction of a four-storey mixed-use building in White Rock, British Columbia. CIMIC, as owner, engaged Chandos as general contractor under a CCDC-2 model fixed-price contract.
The project was significantly delayed. The owner blamed the contractor’s planning, scheduling, and management of the work, while the contractor alleged that the delay was primarily design-related, stemming from a deficient and ever-changing design. The central dispute was the cause of the delay, together with related issues concerning withheld payments, alleged delay damages, and the contractor’s termination of the contract. The parties proceeded to arbitration.
Chandos was largely successful in the arbitration. As the Court noted, the arbitrator found that construction was delayed by acts or omissions of CIMIC and its agents, that Chandos had complied with the contractual notice requirements for its delay claims, and that CIMIC was liable for delay and financing costs. The arbitrator also found that CIMIC was estopped from relying on change order forms that recorded zero days of delay, and rejected CIMIC’s position that it could enforce a liquidated damages clause despite the project delay.
CIMIC then applied for leave to appeal and sought a stay of execution pending appeal. Its application was based on four alleged errors of law by the arbitrator:
- First, CIMIC argued that the arbitrator erred in law in her interpretation of the contractual notice provision applicable to delay claims.
- Second, CIMIC argued that the arbitrator erred in her application of promissory estoppel in relation to the “zero-day” change orders.
- Third, CIMIC argued that the arbitrator erred in relying on the prevention principle to deny CIMIC’s right to enforce the liquidated damages provision.
- Fourth, CIMIC argued that the arbitrator misapprehended material evidence concerning the delay analysis, particularly in relation to the baseline schedule and mechanical and electrical rough-ins.
Decision
The Court began with the governing framework under section 59 of the Arbitration Act, SBC 2020, c 2, which provides that a party may appeal an arbitral award only on a question of law, and only if leave is granted under section 59. As the Court explained, three independent requirements must be met: (i) the appeal must raise one or more questions of law, (ii) one of the circumstances in section 59(4)(a) to (c) must be present, and (iii) the Court must be prepared to exercise its residual discretion to grant leave. Importantly, the Court emphasized that the threshold issue was whether any question of law could be “clearly perceived and identified”.
The Court further reiterated that contractual interpretation is generally a question of mixed fact and law, absent an extricable error of law. Such an error may arise where the arbitrator applies an incorrect legal principle, fails to consider a required element of a legal test, overlooks a relevant factor, or materially misconceives the evidence. This framework ultimately proved fatal to each of CIMIC’s proposed grounds.
Notice and the Reality of Project Communication
On the first ground, CIMIC argued that strict compliance with the notice provision was a condition precedent to Chandos’ delay claims, and that the arbitrator erred in law by effectively relaxing that requirement. Term 6.5.4 of the contract provided that no extension would be made for delay unless notice in writing of the cause of delay was given within ten working days after commencement of the delay. CIMIC argued that many of the delays flowed from issues arising in the first year of the project and that Chandos had not given timely written notice of those issues or their alleged delay impacts. Chandos responded that it did not issue a formal delay notice until more than a year into the project because it was only then that project float had been exhausted and critical path delay had become apparent.
As the Court noted, the arbitrator reviewed the project correspondence, formal delay notices, subsequent updates, and in-person meetings devoted to delay claims, and concluded that CIMIC had been provided with detailed notice and evidence of the claim. She also reviewed British Columbia case law and held that sufficiency of notice must be assessed purposively and substantively, in the context of the parties’ dealings.
The Court rejected CIMIC’s attempt to characterize this conclusion as an error of law. In its view, the arbitrator had expressly considered the notice requirement, understood that written notice was required, and ultimately found that the requirement had been satisfied on the facts. CIMIC’s complaint was therefore not truly about interpretation of the notice clause, but about the arbitrator’s determination that Chandos complied with its notice requirements. At most, that was a question of mixed fact and law, which was not amenable to appeal.
Change Orders and the Limits of Formalism
On the second ground, CIMIC argued that Chandos’ delay claim should have failed because it had signed change orders showing “zero” days of delay, and that the arbitrator erred in applying promissory estoppel to prevent CIMIC from relying on those entries. Based on the contemporaneous project records, the arbitrator found that both parties were proceeding on the understanding that time impacts would be addressed through the delay claim process, not through individual change orders, and that Chandos relied on CIMIC’s assurances when signing the forms.
CIMIC attempted to frame the appeal point as a failure to consider key elements of the legal test for promissory estoppel, including whether there had been a “clear and unequivocal” assurance. The Court, however, emphasized that the arbitrator had identified the governing legal test and applied it to her factual findings, and the fact that she did not use the specific phrase “clear and unequivocal” did not amount to a failure to consider a required legal element. In substance, CIMIC was complaining about how the legal test had been applied to the facts, which was a mixed question of fact and law, not a pure question of law.
The Prevention Principle in Context
On the third ground, CIMIC challenged the arbitrator’s reliance on the prevention principle to deny enforcement of the liquidated damages clause. The contract set May 31, 2022 as the date for substantial completion and included a supplementary clause allowing CIMIC to deduct $5,000 per day for the first 30 days of delay and $7,000 per day thereafter if the work was not finished by the notified occupancy week.
The arbitrator held that CIMIC could not enforce liquidated damages because its own conduct had caused delay that prevented Chandos from completing on time, and, in accordance with the prevention principle, found that “[w]here the fixed completion date is lost due to owner interference, the owner cannot enforce liquidated damages for delay”. She found that CIMIC’s design changes had a real and material impact on Chandos’ performance, that CIMIC’s own expert attributed at least 49 days of delay to CIMIC, that CIMIC issued hundreds of discrete design changes and over $2.7 million in extra work, and that Chandos had gone to great effort to seek an extension which CIMIC refused to grant.
CIMIC sought to frame the issue as a broader legal question, namely whether the contractual extension provisions displaced the prevention principle. The Court rejected that characterization. In its view, the arbitrator’s conclusion depended on a series of factual findings or findings of mixed fact and law, including responsibility for delay, compliance with notice requirements, entitlement to extensions, and the refusal to grant them.
The Court further rejected the proposition that the mere existence of an extension clause automatically bars the application of the prevention principle. Rather, whether the principle is displaced depends on the interpretation and operation of the clause in light of the facts. As such, the issue was not a freestanding question of law, but one grounded in the arbitrator’s factual findings and the application of settled legal principles to those findings.
Misapprehension of Evidence
On the fourth ground, CIMIC argued that the arbitrator misapprehended the evidence regarding whether mechanical and electrical rough-ins were included in the baseline schedule, which in turn affected the delay analysis for one of the windows examined by the experts.
The Court treated this as a challenge to the arbitrator’s weighing of the evidence. The arbitrator had preferred Chandos’ project manager’s evidence over CIMIC’s theory and expert interpretation of the schedule, however, the Court found that this did not convert the issue into an extricable question of law.
Having found that none of the grounds raised a question of law, the Court dismissed the application for leave to appeal.
Commentary
Notwithstanding that CIMIC Morningstar Investment arises in the context of a leave application, it provides useful guidance on recurring issues in construction disputes. In assessing whether any appealable question of law arose, the Court was required to consider, at least at a threshold level, how the arbitrator addressed those issues. In doing so, the decision offers insight into how such disputes are analyzed in practice.
Two related themes emerge from the Court’s reasons. The first concerns the extent to which construction disputes are resolved through the parties’ conduct over the course of the project, rather than through a strictly formal reading of contractual provisions. In that regard, the Court’s reasons reflect a recognition that disputes over notice can turn on substance rather than form.
That approach, however, is not necessarily uniform across jurisdictions. Courts in Ontario have, in some instances, taken a more exacting view of contractual notice provisions. In Technicore Underground Inc v Toronto (City), 2012 ONCA 597, for example, the Ontario Court of Appeal treated compliance with notice requirements as a strict condition precedent, emphasizing the importance of timely and properly framed notice. In that case, the contractor’s failure to provide notice within the time stipulated by the contract operated as a bar to its claim, and the owner was not required to demonstrate prejudice in order to rely on that failure. Read alongside CIMIC Morningstar Investment, the case law suggests some divergence in emphasis, with some authorities appearing more receptive to a contextual, substance-based analysis, while others place greater weight on formal compliance.
In that sense, the law is not entirely settled. Whether a court or tribunal will look beyond the strict terms of a notice provision to the parties’ conduct will depend on the jurisdiction, the wording of the contract, and the factual context.
As a practical matter, however, the safer course is clear. Parties should proceed on the assumption that notice provisions will be enforced as written and should take care to comply with both the timing and content requirements of the contract, rather than relying on the possibility that informal communications or project conduct will later be found to be sufficient.
A second theme concerns the limited scope of appellate review in arbitration, which is generally confined to questions of law. As the Court emphasized, issues such as notice compliance, delay causation, entitlement to extensions, and the interpretation of project records can be characterized as questions of fact or mixed fact and law. Accordingly, while a dissatisfied party may be able to identify alleged errors in an arbitrator’s factual findings, that may not, on its own, give rise to an appealable question of law.
In that regard, the decision highlights the importance of managing notice, delay, and change impacts in real time, rather than assuming that those issues can be reconstructed, or corrected, at the appellate stage.