"Architectural services as detailed on fee note 335 dated6th October 2006 , less money received on account on15th December 2006 . The claimant claims interest undersection 69 of the County Courts Act 1984 at the rate of 8% a year from6th October 2006 to18th May 2007 of£13,301.69 and also interest at the same rate up to the date of judgment or earlier payment at the daily rate of£56.63 ."
"4. It was agreed between the third party and the defendant that the third party would invoice for work carried out by him through whatever trading vehicle he chose and that the defendant would arrange payment to be made to whatever trading vehicle he chose. However, the contract or contracts for the work were made between the third party and the defendant, and all dealings relating to the contracts were between the third party and the defendant. 6. These proceedings were commenced by the company acting in person through the third party who is a director of the claimant. The third party considered the company to be the correct claimant on the basis that this was the trading vehicle that had issued the invoice for which payment was sought. However, having taken advice from legal representatives, the company and the third party acknowledge that the claim was mistakenly commenced in the wrong name and that the third party should be substituted as claimant on the basis of the contract or contracts that form the subject of these proceedings were made between the third party and the defendant."
"In a case in which it was held that in the circumstances it could not be said that an interest had passed to a new party it was said that the terms of r.19.2(4) are permissive and do not preclude a new party being substituted under any other appropriate provision. For example, the provision granting the court power to make any other order for the purpose of furthering the overriding objective. (CPR r.3.1 (2)(m). However, there would have to be very cogent reasons for permitting substitution of the party before the court would rely on that particular other provision."
"When granting permission to appeal, Sir Henry Brooke, remarked thatCPR 19.5 (3) is 'notoriously causing problems'. Indeed it is. There are conflicting decisions of this court in relation to its effect. We propose by this judgment to clarify this difficult area of procedural law."
"55.CPR 19.5 (3)(a) makes it a precondition of substituting a party on the grounds of mistake that the new party is to be substituted for a party who is named in the claim form in mistake for a new party. It is clear from this language that the person who has made the mistake must be the person responsible directly or through an agent for the issue of the claim form. It is also clear that he must be in a position to demonstrate that had the mistake not been made, the new party would have been named in the pleading. 56. The nature of the mistake required by the rule is not spelt out. This court has held that the mistake must be as to the name of the party rather than as to the identity of the party. Applying the general test of this type of mistake laid down in Sardinia... the 'working test' suggested in Western v. ... in as much as it extends wider than the Sardinia... test should not be relied upon."
"The court may allow an amendment whose effect will be to add or substitute a new claim but only if a new claim arises out of the same facts or substantially the same facts as the claim in respect of which the party applying for permission has already claimed a remedy in the proceedings."