"In other words what is required is a two-stage approach. 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 and, if necessary, that the cost of the item is reasonable. If, because of lack of planning or due to other causes, the global costs are disproportionately high, then the requirement that the costs should be proportionate means that no more should be payable than would have been payable if the litigation had been conducted in a proportionate manner. This is turn means that reasonable costs will only be recovered for the items which were necessary if the litigation had been conducted in a proportionate manner."
"Where the court has ordered a party to pay costs, it may order an amount to be paid on account before the costs are assessed."