“Recently there has been a move towards applying the label of restitution to awards of this character: see, for instance, Ministry of Defence v. Ashman [1993] 2 E.G.L.R. 102, 105, and Ministry of Defence v. Thompson [1993] 2 E.G.L.R. 107. However that may be, these awards cannot be regarded as conforming to the strictly compensatory measure of damage for the injured person's loss unless loss is given a strained and artificial meaning. The reality is that the injured person's rights were invaded but, in financial terms, he suffered no loss. Nevertheless the common law has found a means to award him a sensibly calculated amount of money. Such awards are probably best regarded as an exception to the general rule.”
“It is characteristic of the development of common law that the invention and increasingly extended application of the user principle should appear to have come about by accident rather than by design. Thus it seems from the interlocutory observations of members of this court in Whitwham’s case [1896] 2 Chancery 538 that they were initially resistant to the principle of the wayleave cases. But they saw in it a basis for the just decision of that case, and once it had been so decided the application of the principle to analogous states of affairs, for example the wrongful detention of chattels, seems to have been a perfectly natural development. However, in a process of development it is sometimes necessary to stand back from the authorities and whilst not simply where they have come to, but where, if a further extension is made, they may go next. Although I would accept that there may be a logical difficulty in making a distinction between the present case and the wayleave cases, I think that if the user principle were to be applied here there would be an equal difficulty in distinguishing other cases of more common occurrence, particularly in nuisance. Suppose a case where a right to light or a right of way had been obstructed to the profit of the servient owner but at no loss to the dominant owner. It would be difficult, in the application of the user principle, to make a logical distinction between such an obstruction and the infringement of a right to hold a market. And yet the application of that principle to such cases would not only give a right to substantial damages where no loss had been suffered but would revolutionise the tort of nuisance by making it unnecessary to prove loss. Moreover, if the principle were to be applied in nuisance, why not in other torts where the defendant’s wrong can work to his own profit, for example in defamation? As progenitors of the rule of trespass and some other areas, the wayleave cases have done good service. But just as their genus is peculiar, so ought their procreative powers to be exhausted.”
“1) [The overall principle is that] the court should seek a ‘fair’ result of a hypothetical negotiation between the parties; 2. the context including the nature and seriousness of the breach must be kept in mind; 3. the right to prevent a development (or part) gives the owner of the right a significant bargaining position; 4. this owner will normally be expected to receive part of the likely profit from the development (or a relevant part); 5. if there is no evidence of the likely size of the profit, the court can do its best by awarding asuitable multiple of the damages for loss of amenity; 6. if there is the court should normally award a sum that takes into account a fair percentage of that profit; 7. the size of the award should not be so large that the development (or relevant part) would not have taken place if such a sum has been payable; and 8. after arriving at a figure that takes into consideration of all the above and any other relevant factors, the court needs to consider whether ‘the deal feels right’.” factors, the court needs to consider whether ‘the deal feels right’.”
“My conclusion is that there seems to be no reason, in principle, why the court must in all circumstances rule out an account of profits as a remedy for breach of contract. I prefer to avoid the unhappy expression ‘restitutionary damages’. Remedies are the law’s response to a wrong (or, more precisely, to a course of action). When, exceptionally, a just response to a breach of contract so requires, the court should be able to grant the discretionary remedy of requiring a defendant to account to the plaintiff for the benefits he has received from his breach of contract. In the same way as a plaintiff’s interest in performance of a contract may render it just and equitable for the court to make an order for specific performance or grant an injunction so the plaintiff’s interest performance may make it just and equitable that the defendant should retain no benefit from his breach of contract.”
“Although jurists have sought to justify restitutionary claims on a number of grounds, no English court has sought to weave any sophisticated golden thread to unite the cases on so called ‘waiver of tort’. Nor shall I seek to do so.”