The critical question is whether there was also a consensus between the parties, which they had communicated to each other, with respect to the date from which interest was to run. It will be appreciated from the statement of the facts set out earlier that there had been no explicit communication between the parties on this point, but the learned trial Judge nevertheless found as a fact that there was a common communicated intention between the parties, by 19 November 1973 or thereabouts, that the interest should run from the date possession was given to the appellant, which was to be 1 May 1974.
He arrived at this conclusion, in essence, as we understand his reasons for judgment, upon the basis that both parties did in fact take it for granted that the purchaser was to pay interest from the time he obtained possession of the property sold, on so much of the purchase money as was then unpaid. His Honour's view was that, as it was agreed that the purchaser was to be entitled to possession of the land sold before it had paid the whole of the purchase money, the parties could only have understood the agreement to pay interest at 8 per cent on the purchase money then outstanding as an agreement to pay such interest from that time, as, from then on, the purchaser and not the vendors had the benefits of possession. His Honour clearly thought that the parties, as persons bargaining for the sale and purchase of land, proceeded upon the assumption that, whereas a purchaser is normally required to pay the whole of the purchase price to be entitled to possession, when he is to be allowed an extended time for the payment of the purchase price and is to be allowed into possession upon payment of part of the price, then he has to pay interest on the balance during the period for which it is outstanding as a quid pro quo to the vendor, who otherwise has ceased to be entitled to the rents and profits and yet has not got all his purchase money.
His Honour said that he had no doubt that the parties understood the bargain they had made to mean that the interest was payable from the time when, as he expressed it, the vendors made a loan to the purchaser of the amount of the balance of the purchase money. He added that "it was unnecessary to spell out in actual words the obvious, namely, that when you borrow money on interest, that interest accrues over the whole currency of the loan".
It is true that his Honour said that no other meaning was possible for a term of this nature, but, in our opinion, in saying that, he was not regarding himself as merely attributing an intention to the parties, by a process of construction or otherwise, whether it accorded with the parties' actual intention or not, but correctly addressed himself to a consideration of what was the parties' actual intention with respect to the date from which interest should be paid. And, in our opinion, he was amply justified in coming to the conclusion he did.
Therefore, the respondents established the starting point for their case, ie that they formed a consensus, a common intention, communicated to each other, that interest at the rate of 8 per cent, with yearly rests, was to be payable on the balance of the purchase money, from 1 May 1974, that being the date upon which the purchaser was to be entitled to possession of the property sold.
The evidence shows that this continued to be the intention of the respondents up to and including the time when the executed parts of the contract of sale were exchanged on 9 April 1974. The evidence is that the respondents were unaware until after that date that condition 1 of the contract of sale provided for payment of interest from 1 May 1975, although possession was to be given on 1 May 1974. The learned Judge accepted the respondents evidence on these matters, and as we have said, this finding was not challenged on appeal. Thus, the finding was that the respondents executed the contract in the mistaken belief that it provided for interest to be paid from 1 May 1974. There was nothing to suggest that, up to the time when its director received the contract on or about 4 April 1974, the appellant departed from the intention that interest should run from 1 May 1974.
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Counsel for the appellant accepted that rectification of a written document could be granted by the Court where there was either a concluded binding antecedent agreement between the parties or where the parties had reached a common intention before the execution of the written contract and that common intention continued up to the time of the execution of the written document, and he was clearly correct in so doing.[110]