In late March of this year[1], the Court of Appeal in Victoria handed down its decision in Bensons Pty Ltd v Key Infrastructure Australia Pty Ltd [2021] VSCA 69. The principal interest in the case lies in what the court had to say about the prevention principle. There is considerable authority at the highest level that the prevention principle is a rule of law, but nevertheless the Court of Appeal of Victoria considered that it was merely a matter of implication, which gives way to the express terms of the contract. The key passage is perhaps at paragraph 114:
Given that the prevention principle is commonly a reflection of the obligation on the parties to a contract not to hinder or prevent one another from enjoying the benefit of the contract, and generally the source of the obligation is an implied term that is found in most contracts, it is unsurprising that little time was spent analysing the jurisprudential nature of the obligation. The prevalence of the obligation means that generally the focus will be on the consequences of the impugned conduct for the performance of the contract. That is what occurred here. It might also be thought that where the consequence is established (one party has prevented the other from enjoying the bargain) there will inevitably be an antecedent breach. In our opinion, however, it is an error to consider the prevention principle divorced from the terms of the contract and it is a breach of a contractual term that gives rise to the potential application of the principle.
The implications of this approach to the construction industry are profound. If this approach is to be followed, it means that an owner (or head contractor), if savvy enough with its conditions of contract, can prevent the contractor (or subcontractor) from executing the work for lengthy periods, and then claim damages from the head contractor (or subcontractor) for failing to complete the work on time. On any sensible, or even half sensible, commercial approach to the law, this should be an anathema. Arguably, on this approach, a mere “entire agreement” clause is sufficient to prevent time being set at large, however much owner (or head contractor) has been the cause of the preventing delay.
Unsurprisingly, KIA is seeking to appeal that decision to the High Court, and the special leave application is due to be heard in just over a month’s time, on 5th November.
Relatively little authority was referred to by the Victorian Court of Appeal on this point. But there is in fact a great deal of authority on it, and it is carefully and convincingly marshalled[2] in Tony Marshall’s pair of articles The Prevention Principle and Making the Contractor pay for Employer Delay: is English Law departing from its Roots? published in the International Construction Law Review[3], but which perhaps have not obtained the attention that they deserve. With the kind permission of Tony Marshall[4], I set out the paper below. It is to be hoped that the High Court will be persuaded of its essence, which is that:
- it is very firmly established by the highest authority that the prevention principle is a principle of law, not a mere matter of implied term and,
- that there are very good reasons why it should remain so.
The Prevention Principle and Making the Contractor pay for Employer Delay: is English Law departing from its Roots?
(Part 1)
“If the failure to complete on time is due to the fault of the employer and the contractor, in my view the (liquidated damages) clause does not bite. I cannot see how, in the ordinary course, the employer can insist on compliance with a condition if it is partly his own fault that it cannot be fulfilled”[5]
- Introduction
It has been understood in English law for centuries that, where a contractor undertaking work is prevented by his employer from completing his work by the agreed completion date, the agreed completion date ceases to apply and, the date having “gone”, an obligation to complete within a reasonable time is substituted. Any right on the part of the employer to damages for failure to achieve the original date also falls away; the employer is left to his remedy in general damages for any failure to complete within a reasonable time.
The expression which came to be used to describe this situation, in the early nineteenth century cases, was that the contractor was, as a result, “left at large”, both as to the time for completion and as to any damages payable (time and damages were “at large” in the sense of being “no longer fixed; unconfined”). Hence the expression so often on the lips of the construction lawyer (not to mention the enthusiastic claims consultant) – “time is at large”.
Those consequences flow from the application of the time-hallowed “prevention principle” of the common law. According to that principle, he who prevents the performance of his contractual counterparty cannot seek recompense for the resulting failure of the counterparty to perform. Continue reading →