'The next question is: What damages is the plaintiff entitled to recover? The rule of the common law is that where a party sustains a loss by reason of a breach of contract, he is, so far as money can do it, to be placed in the same situation, with respect to damages, as if the contract had been performed.'
'The quantum of damage is a question of fact, and the only guidance the law can give is to lay down general principles which afford at times but scanty assistance in dealing with particular cases ... Subject to these observations I think that there are certain broad principles which are quite well settled. The first is that, as far as possible, he who has proved a breach of a bargain to supply what he contracted to get is to be placed, as far as money can do it, in as good a situation as if the contract had been performed. The fundamental basis is thus compensation for pecuniary loss naturally flowing from the breach; but this first principle is qualified by a second, which imposes on a plaintiff the duty of taking all reasonable steps to mitigate the loss consequent on the breach ...'
"There is no doubt that wherever it is reasonable for the employer to insist upon re-in statement the courts will treat the cost of re-instatement as the measure of damage."
'In the instant case, the plaintiff says in evidence that he wishes to carry out the work on his own land and there are, as it seems to me, three questions that I have to answer. First, am I satisfied on the evidence that the plaintiff has a genuine and serious intention of doing the work? Secondly, is the carrying out of the work on his own land a reasonable thing for the plaintiff to do? Thirdly, does it make any difference that the plaintiff is not personally in occupation of the land but desires to do the work for the benefit of his tenants?'
'If, however, the cost of remedying the defect is disproportionate to the end to be attained, the damages fall to be measured by the value of the building had it been built as required by the contract less its value as it stands.'
'In none of these cases is anything more done than that work which is required to achieve conformity and the cost of the work, whether it be necessary to replace only a small part, or a substantial part, or, indeed, the whole of the building is, subject to the qualification which we have already mentioned and to which we shall refer, together with any appropriate consequential damages, the extent of the building owner's loss. The qualification, however, to which this rule is subject is that, not only must the work undertaken be necessary to produce conformity, but that also, it must be a reasonable course to adopt.'
'Per contra, if the plaintiff has suffered little or no monetary loss in the reduction of value of his land, and he has no intention of applying any damages towards carrying out the work contracted for, or its equivalent, I cannot see why he should recover the cost of doing work which will never be done. It would be a mere pretence to say that this cost was a loss and so should be recoverable as damages.'
'If he contracts for the supply of that which he thinks serves his interests, be they commercial, aesthetic or merely eccentric, then if that which is contracted for is not supplied by the other contracting party I do not see why, in principle, he should not be compensated by being provided with the cost of supplying it through someone else or in a different way, subject to the proviso, of course, that he is seeking compensation for a genuine loss and not merely using a technical breach to secure an uncovenanted profit.'
'In the course of his written submissions Mr Forsyth reminded me that "This is not a matter of commerce to be nicely measured in money. Swimming pools are not necessities, they are for fun. Due to Home Counties' default I have lost some fun". I think that where a contract is for the provision of a pleasurable amenity, such as a swimming pool, it is entirely proper to award a general sum for the loss of amenity. I accept that there has been a loss of amenity brought about by the shortfall in depth and I award damages for loss of that amenity in the sum of£2,500 .'
'If the evidence had been that the value of the pool as constructed was less than the value of a pool with a depth of 7 ft 6 in as contracted for, but that the loss of value was substantially less than the£21,560 cost of reinstatement, then, given the finding that the pool as constructed is still deep enough to be perfectly safe to dive into, the obvious course would have been to award Mr Forsyth the loss of value. The basis of that would have been reasonableness. He has no absolute right to be awarded the cost of reinstatement. I see no reason, therefore, why if there has been no loss in value, he should automatically become entitled to the cost of reinstatement, however high. That would be a wholly unreasonable conclusion in law. Accordingly, I agree with the judge's approach and would dismiss this appeal.'
'What money will place him "in the same situation ... as if the contract had been performed?" The answer, on the facts of this case, is the cost of replacing the pool. Otherwise, a builder of swimming pools need never perform his contract. He can always argue that 5 ft in depth is enough for diving, even if the purchaser has stipulated for 6, 7 or 8 ft, and pay no damages. In my judgment the key lies in the proposition of Oliver J that reasonableness is a matter of mitigation. It is unreasonable of a plaintiff to claim an expensive remedy if there is some cheaper alternative which would make good his loss. Thus he cannot claim the cost of reinstatement if the difference in value would make good his loss by enabling him to purchase the building or chattel that he requires elsewhere. But if there is no alternative course which will provide what he requires, or none which will cost less, he is entitled to the cost of repair or reinstatement even if that is very expensive ... Since there is no other alternative which will provide that which he has contracted for, he is entitled to incur that expense and charge it to the defendant.'
'The rule of the common law is that where a party sustains a loss by reason of a breach of contract, he is, so far as money can do it, to be placed in the same situation, with respect to damages, as if the contract had been performed.'
'The first is that, as far as possible, he who has proved a breach of a bargain to supply what he contracted to get is to be placed, as far as money can do it, in as good a situation as if the contract had been performed. The fundamental basis is thus compensation for pecuniary loss naturally flowing from the breach ...'
'In the circumstances of this case, we think the measure of the allowance is not the cost of replacement, which would be great, but the difference in value, which would be either nominal or nothing ... It is true that in most cases the cost of replacement is the measure ... The owner is entitled to the money which will permit him to complete, unless the cost of completion is grossly and unfairly out of proportion to the good to be attained. When that is true, the measure is the difference in value. Specifications call, let us say, for a foundation built of granite quarried in Vermont. On the completion of the building, the owner learns that through the blunder of a subcontractor part of the foundation has been built of granite of the same quality quarried in New Hampshire. The measure of allowance is not the cost of reconstruction. "There may be omissions of that which could not afterwards be supplied exactly as called for by the contract without taking down the building to its foundations, and at the same time the omission may not affect the value of the building for use or otherwise, except so slightly as to be hardly appreciable".'
'The qualification, however, to which this rule is subject is that, not only must the work undertaken be necessary to produce conformity, but that also, it must be a reasonable course to adopt. No one would doubt that where pursuant to a building contract calling for the erection of a house with cement rendered external walls of second-hand bricks, the builder has constructed the walls of new bricks of first quality the owner would not be entitled to the cost of demolishing the walls and re-erecting them in second-hand bricks. In such circumstances the work of demolition and re-erection would be quite unreasonable or it would, to use a term current in the United States, constitute "economic waste" ... We prefer, however, to think that the building owner's right to undertake remedial works at the expense of a builder is not subject to any limit other than is to be found in the expressions "necessary" and "reasonable", for the expression "economic waste" appears to us to go too far and would deny to a building owner the right to demolish a structure which, though satisfactory as a structure of a particular type, is quite different in character from that called for by the contract. Many examples may, of course, be given of remedial work, which though necessary to produce conformity would not constitute a reasonable method of dealing with the situation and in such cases the true measure of the building owner's loss will be the diminution in value, if any, produced by the departure from the plans and specifications or by the defective workmanship or materials. As to what remedial work is both "necessary" and "reasonable" in any particular case is a question of fact.'
'In the present case it could not be disputed that it was reasonable for the employers to insist on reinstatement and in these circumstances it necessarily follows that on the question of damage the trial judge arrived at the right conclusion.'
'[Counsel for the defendant] accepts that in some cases it would be grossly unreasonable, or capricious, or perverse, to suggest reinstatement and that in such a case some other basis of assessment must be found. I confess that I can see no reason in principle, nor any support in the authorities, for the proposition that the test is other than lack of reasonableness simpliciter ...'
'I accept that the court must have some regard for the predilections of the building owner, but that is only one of the factors. To take a wholly fanciful example; the half round tiles at the edge of the bath ... were white. They did not match the tiles as they should have done. If, for the purpose of this argument, they could only have been removed and replaced by the removal of all the tiles in the bathroom at a cost of several hundred pounds, would it have been reasonable for the plaintiff to have required this to be done? [Counsel for the defendant] contends that his client is entitled to say, "I want what I bargained for. What you have done is unacceptable to me." Such an approach seems to me to make his client the sole arbiter of what is "reasonable."'
'... in the case of a building contract, the prima facie rule is cost of cure, i.e., the cost of remedying the defect: East Ham Corporation v. Bernard Sunley & Sons Ltd. ([1965] 3 All ER 619 ,[1966] AC 406 ). But where the cost of remedying the defects involves expense out of all proportion to the benefit which could accrue from it, the court is entitled to adopt the alternative measure of difference of the value of the works ...'
'It is important to realise that when the plaintiff has come to court before taking any steps to rectify the position, the court is acting on the basis of a hypothetical situation. The plaintiff is awarded a sum of money to represent either the cost of cure or diminution whichever course the court considers reasonable in the circumstances of the case.'
'It is always necessary to exercise the greatest care before applying the reasoning in one case to a different factual situation, and this is particularly true in the field of damages. The majority of the Court in Ruxley Electronics did not hold that a plaintiff can recover in damages the cost of remedial measures which are unreasonable. They held that, in the circumstances of that case it was not unreasonable for the plaintiff to spend the substantial sum necessary to have what he had contracted for. The test of what was reasonable had to have regard to his personal preference, as expressed in the depth of water that he had contractually required. This reasoning can be applied to a requirement which is incorporated in a contract as an end in itself, reflecting a personal preference of the contracting party. It does not apply where the contractual requirement is not an end in itself, but is inserted into a commercial contract because it has financial implications. If, in such a case, the contractual requirement is not met, the costs of remedial measures will not normally be recoverable as damages if they are disproportionate to the financial consequences of the breach. If that is the case it will not be reasonable to incur those costs. The damages recoverable will be those necessary to compensate for the financial consequences of the breach.'
'Again, some contracts for alterations to buildings, or for their demolition, might not, if carried out, enhance the market value of the land, and sometimes would reduce it. The tastes and desires of the owner may be wholly out of step with the ideas of those who constitute the market; yet I cannot see why eccentricity of taste should debar him from obtaining substantial damages unless he sues for specific performance. Per contra, if the plaintiff has suffered little or no monetary loss in the reduction of value of his land, and he has no intention of applying any damages towards carrying out the work contracted for, or its equivalent, I cannot see why he should recover the cost of doing work which will never be done. It would be a mere pretence to say that this cost was a loss and so should be recoverable as damages.'
'The Respondent accepts that the genuineness of the parties' indicated predilections can be a factor which the court must consider when deciding between alternative measures of damage. Where a plaintiff is contending for a high as opposed to a low cost measure of damages the court must decide whether in the circumstances of the particular case such high cost measure is reasonable. One of the factors that may be relevant is the genuineness of the plaintiff's desire to pursue the course which involves the higher cost. Absence of such a desire (indicated by untruths about intention) may undermine the reasonableness of the higher cost measure.'
'There are many circumstances where a judge has nothing but his commonsense to guide him in fixing the quantum of damages, for instance, for pain and suffering, for loss of pleasurable activities or for inconvenience of one kind or another.'