The remaining issue is whether the case should be remitted to the single judge to permit Ms Brown to renew her application to call further evidence. As I understand it, she wants to lead evidence to prove that between the time of the purchase of the house, and the time of its resale, the value or market price of the house, and of houses of the same kind (I pass by the question of how the kind of house is to be identified) rose by an amount that can be established. Building on this she wishes to argue that the Court should find that because of the commitment involved in acquiring the house in question, she was not in a position to acquire a replacement home until she had sold the house in question. By then, she argues, she was at a disadvantage because the price and value of an equivalent home had risen with the general rise in market prices for housing. On this basis she argues that the amount credited against her claim, on account of the proceeds of sale of the house, should be reduced by the amount by which the market price of equivalent houses had risen over the relevant period.
In effect, Ms Brown wishes to prove the facts necessary to establish a claim that includes, as one element, the gain that she would have made by entering into another transaction (the purchase of a similar house). She argues that the defendant's breach of contract deprived her of the opportunity to do so, because her money was tied up in the house in question.
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I agree with Layton J that to support this aspect of Ms Brown's claim, it may be necessary for Ms Brown to give further evidence. It might be necessary for her to give evidence that she acted reasonably in not selling the house until she did sell it, and that she could not have sold the house sooner than she did. The fact that she has not acquired a replacement house might also be relevant, and might be a matter on which she will need to give evidence to support the claim. One cannot say at this stage whether or not the valuation evidence will prove contentious, and whether or not the defendant will wish to call answering evidence.
The claim that Ms Brown now wishes to advance is one that should have been identified and advanced from the outset. It was not identified, or at least not adequately identified, before the magistrate, and was promoted for the first time before the single judge. The explanation for the failure to promote this aspect of the claim before the magistrate is likely to be that given by Kourakis J. That is, that the difficulties inherent in the correct approach to the assessment of loss, reflected by the differing views expressed in differing judgments in this case, meant that Ms Brown's representatives failed to identify this claim and failed to advance this aspect of her case when it should have been advanced. It is also true, as Kourakis J says, that the defendant can be compensated in costs for costs thrown away as a result of the damages claim being reopened. But against that, a judge ruling on the application to be made by Ms Brown would have to bear in mind the need for finality, and the need for litigants to have reasonable confidence that once their case has been heard and decided, the case will not be reopened to enable one party to litigate issues that could have been raised earlier but were not raised.
This review of the relevant considerations persuades me that Ms Brown's application to reopen her case should be remitted to the single judge. To some extent, I have had to speculate about what is involved in the reopening of the claim for damages. The application for permission to do so can be decided satisfactorily only with a full understanding of the case now to be put, and with an appreciation of what that involves by way of evidence on either side. On what I know, the matter appears to be finely balanced. I express no view on the question of whether the application should be granted.[13]