“…There has to be a global approach and an item by item approach. The global approach will indicate whether the total sum claimed is or appears to be disproportionate having particular regard to the considerations whichCPR r 44.5 (3) states are relevant. If the costs as a whole are not disproportionate according to that test then all that is normally required is that each item should have been reasonably incurred and the cost for that item should be reasonable. If on the other hand the costs as a whole appear disproportionate then the court will want to be satisfied that the work in relation to each item was necessary....”
“… a sensible standard of necessity has to be adopted. This is a standard which takes fully into account the need to make allowances for the different judgments which those responsible for litigation can sensibly come to as to what is required. While the threshold required to meet necessity is higher than that of reasonableness, it is still a standard that a competent practitioner should be able to achieve without undue difficulty.”
“It does not seem to us to be a profitable or useful exercise for this court to describe in abstract the difference between assessing whether an item has been necessarily incurred and assessing whether an item has been reasonably incurred, save to confirm that the former hurdle is higher, but it does not carry with it the strictest sense of necessity.”
“...appeals concerning the amount of costs are… notoriously challenging from the appellant’s point of view”