“In practical terms, this case is a rerun of the cases presented before the leasehold valuation tribunal, with the same witnesses giving virtually the same evidence. Historically, the Lands Tribunal has not acted as a court of review, but has treated every appeal as a hearing de novo , with the parties entitled to call fresh evidence if so advised. This tribunal in determining an appeal has not hitherto been concerned to consider whether the decision appealed against was right or wrong, save perhaps in relation to the costs of the appeal proceedings. However, I am not aware of any statutory provision which binds the tribunal to conduct the appeal in this way, or indeed in any particular way.
“… an appellate court should not interfere with case management decisions by a judge who has applied the correct principles and who has taken into account matters which should be taken into account and left out of account matters which are irrelevant, unless the court is satisfied that the decision is so plainly wrong that it must be regarded as outside the generous ambit of the discretion entrusted to the judge.”