37 In the ensuing passage (paragraphs [25] to [35]), Basten JA set out his reasons for concluding that the lease did contain an implied term as claimed by the Respondent. The following extracts sufficiently demonstrate his reasoning:-
25 In terms of legal principle, both parties accepted the need to apply the principles stated by Mason J in Codelfa Construction Pty Ltd v State Rail Authority (NSW) (1982) 149 CLR 337. The Appellant argued that the implied obligation sought to be imposed upon it to complete the construction work might have been a reasonable term to imply, but it was not "necessary to do to give business efficacy to the contract": ibid at 346. The term may also be capable of clear expression, but its implication is not so obvious that it "goes without saying": ibid at 347…
28 No case was drawn to the attention of the Court in which the possibility of an implied obligation to complete construction of premises had been discussed. The Appellant argued that the absence of any such authority militated against the conclusion that such an implied term was appropriate, particularly in circumstances where the parties had negotiated with respect to the anticipated failure to complete before the commencement of the lease…
31 Although the Court should be slow to imply a term into a contract such as a lease, in the circumstances set out above, and especially where the result might be seen as inconsistent with general law principles as to the extent of the obligations imposed on lessors and lessees, this is not a case involving the maintenance of existing facilities, nor the extent of obligations to repair such facilities. Those obligations are dealt with in express terms in the lease, particularly in clauses 6 and 7. It is for that reason that clauses 6 and 7 do not, in their terms, cover the present dispute: as a result, the Respondent's reliance by way of a notice of contention, on the express terms of cl 7.4 should not succeed.