Mount Lawley Pty Ltd v Western Australian Planning Commission [No 2]

The matter before the court was an application by the respondent, Western Australian Planning Commission, to re-open the decision of the court in Mount Lawley Pty Ltd v Western Australian Planning Commission [2007] WASCA 226. The appeal in that case concerned whether the trial judge had erred in fact or law, and the court had not yet made any orders pending a further hearing on the matter. The appellant, Mount Lawley Pty Ltd, also made an oral application to re-open the appeal, which was dismissed alongside the respondent's application. The court held that while it had the jurisdiction to re-open an appeal, this power was exercised only in exceptional cases where the court had apparently proceeded on a misapprehension of the facts or the relevant law, and that misapprehension could not be attributed solely to the neglect or default of the party seeking the re-hearing. The court found that neither party had met the threshold for re-opening the appeal and dismissed both applications.

The legal issues before the court were whether the applications to re-open the appeal should be granted, and what the appropriate criteria were for such applications. The court noted that while the jurisdiction to re-open an appeal was well-established, it was exercised only in exceptional circumstances due to the public interest in the finality of litigation. The court referred to various authorities to establish that the jurisdiction was not to be exercised simply because a party had failed to present an argument as well as it might have been put, but only where the court had apparently proceeded on a misapprehension of the facts or the relevant law. The court held that neither party had established that such a misapprehension had occurred, and so the applications to re-open the appeal were dismissed.

In reaching its decision, the court emphasised the importance of the finality of litigation and the exceptional nature of applications to re-open an appeal. The court held that the burden was on the party seeking to re-open the appeal to establish that the court had apparently proceeded on a misapprehension of the facts or the relevant law, and that this misapprehension could not be attributed solely to the neglect or default of the party seeking the re-hearing. The court found that neither party had met this burden and so dismissed both applications. The court also noted that no orders had been made in the appeal pending a further hearing on the question whether the court was in a position to make the necessary findings for the determination of the matter or whether there must be a re-trial.

The orders made by the court were that both the respondent's and the appellant's applications to re-open the appeal were dismissed. The court did not make any other orders in relation to the appeal at this stage.