"to keep the Flat in such a state of repair as to prevent damage being caused to the ground floor or those occupying it by water penetration or falling masonry, guttering, etc."
"to do that which is reasonable in all the circumstances, and no more than what, if anything, is reasonable to prevent or minimise the known risk of damage or injury to one's neighbour or to his property."
"So far it has been possible to consider the existence of a duty, in general terms. But the matter cannot be left there without some definition of the scope of his duty. How far does it go? What is the standard of the effort required? What is the position as regards expenditure? It is not enough to say merely that these must be "reasonable," since what is reasonable to one man may be very unreasonable, and indeed ruinous, to another: the law must take account of the fact that the occupier on whom the duty is cast has, ex hypothesi, had this hazard thrust upon him through no seeking or fault of his own. His interest, and his resources, whether physical or material, may be of a very modest character either in relation to the magnitude of the hazard, or as compared with those of his threatened neighbour. A rule which required of him in such unsought circumstances in his neighbour's interest a physical effort of which he is not capable, or an excessive expenditure of money, would be unenforceable or unjust. One may say in general terms that the existence of a duty must be based upon knowledge of the hazard, ability to foresee the consequences of not checking or removing it, and the ability to abate it. And in many cases, as, for example, in Scrutton LJ's hypothetical case of stamping out a fire, or the present case, where the hazard could have been removed with little effort and no expenditure, no problem arises. But other cases may not be so simple. In such situations the standard ought to be to require of the occupier what it is reasonable to expect of him in his individual circumstances. Thus, less must be expected of the infirm than of the able-bodied: the owner of a small property where a hazard arises which threatens a neighbour with substantial interests should not have to do so much as one with larger interests of his own at stake and greater resources to protect them: if the small owner does what he can and promptly calls on his neighbour to provide additional resources, he may be held to have done his duty: he should not be liable unless it is clearly proved that he could, and reasonably in his individual circumstance should, have done more."
"The duty is a duty to do that which is reasonable in all the circumstances, and no more than what, if anything, is reasonable, to prevent or minimise the known risk of damage or injury to one's neighbour or to his property. The considerations with which the law is familiar are all to be taken into account in deciding whether there has been a breach of duty, and, if so, what that breach is, and whether it is causative of the damage in respect of which the claim is made. Thus, there will fall to be considered the extent of the risk; what, so far as reasonably can be foreseen, are the chances that anything untoward will happen or that any damage will be caused? What is to be foreseen as to the possible extent of the damage if the risk becomes a reality? Is it practicable to prevent, or to minimise, the happening of any damage? If it is practicable, how simple or how difficult are the measures which could be taken, how much and how lengthy work do they involve, and what is the probable cost of such works? Was there sufficient time for preventive action to have been taken, by persons acting reasonably in relation to the known risk, between the time when it became known to, or should have been realised by, the defendant, and the time when the damage occurred? Factors such as these, so far as they apply in a particular case, fall to be weighed in deciding whether the defendant's duty of care requires, or required, him to do anything, and, if so, what."
"If I thought that that sort of result would be likely to follow - or to follow in a substantial number or proportion of cases where this duty comes in question - I should, at least, hesitate long before accepting that this factor could be regarded as a proper factor in deciding whether the duty had or had not been broken in a particular case. But I do not think that anything of that sort is contemplated by Goldman v Hargrave[1967] 1 AC 645 , any more than the decision of the House of Lords in Herrington v British Railways Board[1972] AC 877 contemplated, or leads to the possibility of, a detailed examination of the financial position of the defendant landowner or occupier who is sued for damages by a trespasser who has been injured while on the defendant's land. The extent of the defendant's duty, and the question whether he has or has not fulfilled that duty, may, it is clear as a matter of English law, depend on the defendant's financial resources: see the speech of Lord Reid[1972] AC 877 , 898H. I do not believe that there was any contemplation that in such a case there would be discovery of the defendant's bank account or any detailed examination of his financial resources. So here. The defendant's duty is to do that which it is reasonable for him to do. The criteria of reasonableness include, in respect of a duty of this nature, the factor of what the particular man - not the average man - can be expected to do, having regard, amongst other things, where a serious expenditure of money is required to eliminate or reduce the danger, to his means. Just as, where physical effort is required to avert an immediate danger, the defendant's age and physical condition may be relevant in deciding what is reasonable, so also logic and good sense require that, where the expenditure of money is required, the defendant's capacity to find the money is relevant. But this can only be in the way of a broad, and not a detailed, assessment; and, in arriving at a judgment on reasonableness, a similar broad assessment may be relevant in some cases as to the neighbour's capacity to protect himself from damage, whether by way of some form of barrier on his own land or by way of providing funds for expenditure on agreed works on the land of the defendant. Take, by way of example, the hypothetical instance which I gave earlier: the landowner through whose land a stream flows. In rainy weather, it is known, the stream may flood and the flood may spread to the land of neighbours. If the risk is one which can readily be overcome or lessened - for example by reasonable steps on the part of the landowner to keep the stream free from blockage by flotsam or silt carried down, he will be in breach of duty if he does nothing or does too little. But if the only remedy is substantial and expensive works, then it might well be that the landowner would have discharged his duty by saying to his neighbours, who also know of the risk and who have asked him to do something about it, "
"I do not think either judge was purporting to give an exhaustive list of relevant considerations. While I agree with Megaw LJ (see p 524B) that it would be a grievous blot on our law if there was no liability on the defendants in those cases, I do not think justice requires that a defendant should be held liable for damage which, albeit of the same type, was vastly more extensive than that which was foreseen or could have been foreseen without extensive further geological investigation; and this is particularly so where the defect existed just as much on the plaintiffs' land as on their own. In considering the scope of the measured duty of care, the courts are still in relatively uncharted waters. But I can find nothing in the two cases where it has been considered, namely Goldman case[1967] 1 AC 645 and Leakey's case[1980] QB 485 to prevent the court reaching a just result."
" Goldman's case[1967] 1 AC 645 and Leakey's case[1980] QB 485 were decided before the decision of the House of Lords in Caparo Industries Plc v Dickman[1990] 2 AC 605 , in which the three-stage test for the existence of a duty of care was laid down, namely foreseeability, proximity and the need for it to be fair, just and reasonable. In Marc Rich & Co AG v Bishop Rock Marine Co Ltd[1996] AC 211 it was held that the three-stage Caparo test was appropriate whatever the nature of the damage: see per Lord Steyn, at p 235, approving a dictum of Saville LJ. The requirement that it must be fair, just and reasonable is a limiting condition where foreseeability and proximity are established. In my judgment very similar considerations arise whether the court is determining the scope of a measured duty of care or whether it is fair, just and reasonable to impose a duty or the extent of that duty. And for my part I do not think it is just and reasonable in a case like the present to impose liability for damage which is greater in extent than anything that was foreseen or foreseeable (without further geological investigation), especially where the defect and danger existed as much on the plaintiffs' land as Scarborough's."
"the standard ought to be to require of the occupier what it is reasonable to expect of him in his individual circumstances."
"a duty to do that which is reasonable in all the circumstances, and no more than what, if anything, is reasonable, to prevent or minimise the known risk of damage or injury to one's neighbour or to his property."
"[28] It seems to me therefore that any decision which your Lordships may give in this case must to some extent break new ground in English law. One point at least is clear. Double recovery could not be permitted. But there is no question of that in the present case [29] Beyond that I think that the answer to the issue falls to be found by applying the concepts of reasonableness between neighbours (real or figurative) and reasonable foreseeability which underlie much modern tort law and, more particularly, the law of nuisance. The great cases in nuisance decided in our time have these concepts at their heart."
"In both the second Wagon Mound case and Goldman v Hargrave the judgments, which repay full rereading, are directed to what a reasonable person in the shoes of the defendant would have done. The label nuisance or negligence is treated as of no real significance. In this field, I think, the concern of the common law lies in working out the fair and just content and incidents of a neighbour's duty rather than affixing a label and inferring the extent of the duty from it."
"I think that the principle which applies here is Plato's definition of equality as a "sort of justice": if you cannot find any other, equality is the proper basis."
"what it is reasonable to expect of him in his individual circumstances."
"The extent of the defendant's duty may depend on the defendant's financial resources ... the defendant's capacity to find the money is relevant."
"The question of reasonableness of what had been done or offered would fall to be decided on a broad basis, in which, on some occasions , there might be included an element of obvious discrepancy of financial resources."
"What do we have here? We have here a lady who is 57 years old, who has, on any view, refused to co-operate in doing anything to the roof which plainly needs attention to stop ingress of water to the claimants property on the ground floor; and a situation in which she has refused access; and has refused to contribute towards the cost of putting it right. That she had known of the hazard is obvious, and she has known it for a long time. She has been the owner of that roof for a very long time, and the hazard of the ingress of water has been there for a long time [The claimants] have been active, they have been complaining, and it is this lady that refuses to do anything. Miss May says that the measured duty in the circumstances of this case should involve no sharing at all, as suggested by Megaw LJ, of the respective responsibilities. I disagree. It is quite true that [Miss Smee] is on social security, as she says in her written statement. She did not come to give evidence, but her witness statement is there and I accept as true what she says in the last paragraph of her witness statement: "