“A ‘broad brush’ is taken to determine what rate of interest is just and appropriate. It would be neither practical nor proportionate (even in a case involving as large sums as these) to attempt a minute assessment of what will precisely compensate the recipient. In particular, the courts do not have regard to the rate at which a particular recipient of compensation might have borrowed funds. This policy is adopted in order to control the extent of the enquiry to ascertain an appropriate rate: see the Banque Keyser Ullman case. The court will, however, consider the general characteristics of the recipient in order to decide whether to assess interest at a rate that is higher or lower than is conventional. So, for example, in Jaura v Ahmed,[2002] EWCA Civ 210 , Rix LJ awarded interest at base rate plus 3% to reflect that ‘small businessmen’ had been kept out of their money and in recognition of the ‘real cost of borrowing incurred by such a class of businessmen’. Thus, the court will examine what has been called ‘a question of categorisation of the plaintiff in an objective sense’ (see the Banque Keyser Ullman case), recognise relevant characteristics of the party who is awarded interest and reflect them when determining the fair and appropriate rate. Any doubts expressed by this by Nourse LJ in Re Duckwari PLC (No 2)[1999] Ch 268 at p.273 have been set aside, and it was not in dispute before me.”
“As to those competing interests, the choice lies between base rate + 1% and LIBOR + 1%. As is pointed out in paragraph 7.0.17 of the White Book, the starting point is generally Bank of England rate + 1%. There is no evidence to suggest that this produces an unfair result in the present case. Accordingly, I adopt a cautious approach to the award of interest and I award interest at that rate (rather than the higher LIBOR rate). It is base rate [plus] 1%.”
"In my, and my firm’s, experience, commercial lending rates are much more commonly set with reference to interbank lending rates, i.e. rates at which banks themselves are actually paying for funds rather than a central bank base rate."