"It was accepted before the Judge at first instance and before this Court that the appellant had a serious question to be tried on the application under s 55A of the Law of Property Act. It seems to me that that could not be based on any notion of estoppel founded on the December letter, as there is no evidence that the appellant acted to his detriment as a result. It is more likely that the concession of a serious question to be tried was based on hardship to the appellant, and in particular, the loss of the first home buyer's grant if the power of sale were exercised now with relatively little to be done to complete the house. Although the existence of a serious question was not in issue, I mention those possibilities here because it is relevant to what the Judge took into account in determining where the balance of convenience lay.
The Judge at first instance based his refusal to grant the injunction on what he considered to be the balance of convenience. One of the factors which his Honour seems to have taken into account is that, if relief from the exercise of the power of sale were granted under s 55A, the appellant would be quite unable to satisfy his then liabilities to the mortgagee and to the builder, and that in the absence of his being able to provide further security, the balance of convenience dictated that the property should now be sold.
To the extent that those considerations were taken into account by the Judge at first instance as being relevant to the balance of convenience, I consider that that constituted an error. Those factors might be relevant to the consideration of the main application, but they were not material to the question whether the exercise of the power of sale should be delayed for a relatively short time to enable the application to be determined.
...
On the hearing of an interlocutory injunction to preserve the status quo pending the determination of an application under s 55A(3), there may sometimes be a temptation to blur the line between what is considered to constitute a serious question to be tried on the principal application and what constitutes the balance of convenience in determining whether to grant the holding injunction. If hardship is the primary reason put forward in support of the principal application, there will necessarily be a weighing of the balance of convenience in determining whether a remedy should be granted, and if so, on what terms. However, that process should not be confused with the assessment of the balance of convenience in granting or not granting an interlocutory injunction while those questions are determined.
The convenience to be weighed is the convenience or inconvenience of granting the holding injunction while the principal questions are determined. As will be seen later in these reasons, although it has not transpired in this case, that should normally be for only a relatively short period. Therefore the balance of convenience at that stage relates to the effect on both parties of delaying the sale for that relatively short period of time. The mortgagor's ultimate ability to repay the loan the subject of the security will not usually be relevant to that question, but a number of other factors will. They include any irrecoverable loss that may be suffered by the mortgagor if the sale proceeds before the principal application is determined, any costs thrown away by the mortgagee in preparing the property for sale and marketing it, whether those costs are paid or recoverable, the costs and inconvenience incurred by the mortgagor in granting possession for the purposes of sale, the costs of delaying the sale and other like considerations. It should not, at that stage, involve a pre-judgment of the likely success of the principal application for which a relevant consideration may well be the mortgagor's ability to repay the total debt."