10 The Management Agreement is only for an initial term of 10 years. There are then three 5 year options to renew vested only in the Caretaker-Manager. Clause 18 makes clear that the services that Caretaker-Manager provides are not wholly exclusive because the Caretaker is free to provide them to other persons who are not owners. But there is no reciprocal provision to the effect that owners must use only the Caretaker-Manager in the Management Agreement. That is contrary to what one would expect, if the by-laws were to have the restrictive interpretation contended for by the Plaintiff. Moreover the by-laws are unlimited as to time, whereas the associated management agreement might cease after 10 years. That leaves the owner, on the Plaintiff's interpretation, precluded from taking a wide range of services by persons temporarily in the premises to provide them. This would include not only real estate agency services but also the numerous other services stipulated. That constraint would operate even in circumstances where there was no agreement providing for the Plaintiff to offer them or where only on offer on exorbitant terms. The Management Agreement makes no provision for the costs to be charged for the relevant estate agency and other services to be provided exclusively by the Caretaker-Manager. That is contrary to what one would expect if owners were bound to take those services exclusively from the Manager/Plaintiff when their provision brought the service provider on to the premises, albeit only in a transient sense.
11 Nonetheless, despite these onerous consequences, the Plaintiff contends that any owner who uses an outside agent rather than the Caretaker-Manager to sell his unit infringes special by-law 4, unless consent were first obtained. (There is no suggestion of consent being forthcoming in the present cases). This is said to be because the owner, either directly or through the agent, would in the words of the by-law thereby "conduct or participate in the conduct of a business which provides services in the nature of" the "sales service" provided to owners and occupiers of the relevant lots. The Plaintiff relies on the judgment of Bryson J in Regis Towers Real Estate Pty Ltd v Kin Fung & Ors [2000] NSWSC 438 unreported 25 May 2000. But that case is directed to an actual underlease of a unit to a real estate agent. That is a wholly different set of circumstances to the present, where none of the service provider comes on to the premises save in a transient sense, as for example to confer with the owner or bring in a potential purchaser.
12 The anomalous and onerous consequences of such an interpretation point strongly against it. They include that the owner, though refused that specified service by the Caretaker or offered it on onerous terms or in circumstances where the agent had a conflict, would nonetheless be in breach of the prohibition if the owner used an outside agent. This the Plaintiff tried to answer by suggesting that the caretaker would then be precluded from withholding its consent to the owner using an outside agent. That is said to be an implied term attaching to the capacity to give or withhold consent.
13 But such a term would not be implied if the agreement, interpreted less restrictively, could have business efficacy without it. There is indeed an interpretation of the clause which avoids that anomaly arising in the first place. This is simply to construe the constraint in a less strained and expansive way; by interpreting the constraint as merely precluding the owner from direct participation in, or conduct of, the relevant activities. In that way the owner remains free to appoint agents, selling or otherwise, so long as they do not involve participation by the owner in the agent's business.
14 There is a further powerful argument against the Plaintiff's construction. An agreement having the onerous consequences that I have identified would operate as an unreasonable restraint of trade, offending the common law prohibition on such restraints. J D Heydon, QC (as he then was) writing in "A Restraint of Trade Doctrine" 2nd ed (Butterworths 1999) at 115 explains how the rules of construction applicable to restraints can often assist in holding covenants valid, by narrowing their scope:
"The rules of construction already discussed will often assist in holding covenants valid by narrowing their scope. Thus where an employee agreed that he would not, after leaving his employer's service, deal with 'any of the customers who shall at any time be served by the employer … in the said business', the Court of Appeal held that these words referred only to the employer's business at the time of the agreement, and not to any business started elsewhere thereafter. As Lord Esher MR said, 'It is an ordinary canon of construction that the meaning of words in an agreement which, taken by themselves, are quite general may be confined to a particular subject-matter with which the parties were dealing. Here, I think the parties to the agreement were dealing with the business then carried on by the plaintiff in Whitechapel and St George's in the East, and the scope of this agreement must be limited by reference to that locality. Dubowski & Sons v Goldstein [1896] 1 QB 478 at 481; [1895-99] All ER Rep 1959 at 1961."