“ …In consideration of you making the assignment of even date, we undertake to pay you one half of the net monies received from Technotrade Limited. “Net monies” means all sums received from Technotrade Limited, whether by Court order or judgment or by compromise or otherwise and whether in respect of the cause of action assigned by you to us or otherwise, but after deduction of our costs of pursuing Technotrade Limited and deduction of any costs we may be ordered to pay Technotrade Limited. We agree to hold all monies received from Technotrade Limited on trust for division in accordance with the foregoing…”
“It is immaterial that Linden Gardens Trust subsequently incurred the expense of remedial work and suffered loss of rent while it was carried out, although the cost and loss may assist them in establishing the damages which would, but for the assignment have been recoverable by Stock Conversion…in my opinion there was an existing right of action for breach of contract.”
“But it is said that in such a case the assignee can recover no more as damages than the assignor could have recovered. That proposition seems to me to be well founded. It stems from the principle already discussed, that the debtor is not to be put in any worse position by reason of the assignment. And it is established by Dawson v Great Northern & City Railway Co[1905] 1 KB 260 ; see also GUS Property Management Ltd v Littlewoods Mail Order Stores Ltd[1982] SLT 533 by Lord Keith of Kinkel at page 538, cited later in this judgment. But in a case such as the present one must elucidate the proposition slightly: the assignee can recover no more damages than the assignor could have recovered if there had been no assignment, and if the building had not been transferred to the assignee.”
“In my judgment the present case falls within the rationale of the exceptions to the general rule that a plaintiff can only recover damages for his own loss. The contract was for a large development of property which, to the knowledge of both Corporation and McAlpine, was going to be occupied, and possibly purchased, by third parties and not by the Corporation itself. Therefore it could be foreseen that damage caused by the breach would cause loss to a later owner and not merely to the original contracting party, Corporation. As in contracts for the carriage of goods by land, there would be no automatic vesting in the occupier or owners of the property for the time being who sustained the loss of any right of suit against McAlpine. On the contrary, McAlpine had specifically contracted that the rights of action under the building contract could not without McAlpine’s consent be transferred to third parties who became owners or occupiers and might suffer loss. In such a case, it seems to me proper, as in the case of carriage of goods by land, to treat the parties as having entered into the contract on the footing that Corporation would be entitled to enforce contractual rights for the benefit of those who suffered from defective performance but who, under the terms of the contract, could not acquire any right to hold McAlpine liable for breach. It is truly a case in which the rule provides “a remedy where no other would be available to a person sustaining loss which under a rational legal system ought to be compensated by the person who has caused it”.”