“i) Deciding whether an equity has been raised and, if so, how to satisfy it is a retrospective exercise looking backwards from the moment when the promise falls due to be performed and asking whether, in the circumstances which have actually happened, it would be unconscionable for a promise not to be kept either wholly or in part: Thorner v Major[2009] UKHL 18 ; [2009] 1 W.L.R. 776 at [57] and [101]. ii) The ingredients necessary to raise an equity are (a) an assurance of sufficient clarity (b) reliance by the claimant on that assurance and (c) detriment to the claimant in consequence of his reasonable reliance: Thorner v Major at [29]. iii) However, no claim based on proprietary estoppel can be divided into watertight compartments. The quality of the relevant assurances may influence the issue of reliance; reliance and detriment are often intertwined, and whether there is a distinct need for a “mutual understanding” may depend on how the other elements are formulated and understood: Gillett v Holt[2001] Ch. 210 at 225; Henry v Henry[2010] UKPC 3 ; [2010] 1 All E.R. 988 at [37]. iv) Detriment need not consist of the expenditure of money or other quantifiable financial detriment, so long as it is something substantial. The requirement must be approached as part of a broad inquiry as to whether repudiation of an assurance is or is not unconscionable in all the circumstances: Gillett v Holt at 232; Henry v Henry at [38]. v) There must be a sufficient causal link between the assurance relied on and the detriment asserted. The issue of detriment must be judged at the moment when the person who has given the assurance seeks to go back on it. The question is whether (and if so to what extent) it would be unjust or inequitable to allow the person who has given the assurance to go back on it. The essential test is that of unconscionability: Gillett v Holt at 232. vi) Thus the essence of the doctrine of proprietary estoppel is to do what is necessary to avoid an unconscionable result: Jennings v Rice[2002] EWCA Civ 159 ; [2003] 1 P. & C.R. 8 at [56]. vii) In deciding how to satisfy any equity the court must weigh the detriment suffered by the claimant in reliance on the defendant’s assurances against any countervailing benefits he enjoyed in consequence of that reliance: Henry v Henry at [51] and [53]. viii) Proportionality lies at the heart of the doctrine of proprietary estoppel and permeates its every application: Henry v Henry at [65]. In particular there must be a proportionality between the remedy and the detriment which is its purpose to avoid: Jennings v Rice at [28] (citing from earlier cases) and [56]. This does not mean that the court should abandon expectations and seek only to compensate detrimental reliance, but if the expectation is disproportionate to the detriment, the court should satisfy the equity in a more limited way: Jennings v Rice at [50] and [51]. ix) In deciding how to satisfy the equity the court has to exercise a broad judgmental discretion: Jennings v Rice at [51]. However the discretion is not unfettered. It must be exercised on a principled basis, and does not entail what HH Judge Weekes QC memorably called a “portable palm tree”: Taylor v Dickens [1998] 1 F.L.R. 806 (a decision criticised for other reasons in Gillett v Holt).”
“In fact the court must look at the circumstances in each case to decide in what way the equity can be satisfied.”
“Scarman L.J.’s reference to the minimum does not require the court to be constitutionally parsimonious, but it does implicitly recognise that the court must also do justice to the defendant.”
“…there is a category of case in which the benefactor and the claimant have reached a mutual understanding which is in reasonably clear terms but does not amount to a contract. I have already referred to the typical case of a carer who has the expectation of coming into the benefactor’s house, either outright or for life. In such a case the court’s natural response is to fulfil the claimant’s expectations. But if the claimant’s expectations are uncertain, or extravagant, or out of all proportion to the detriment which the claimant has suffered, the court can and should recognise that the claimant’s equity should be satisfied in another (and generally more limited) way.”
“Since the essence of proprietary estoppel is the combination of expectation and detriment, if either is absent the claim must fail. If, therefore, the detriment can be fairly quantified and a claimant receives full compensation for that detriment, that compensation ought, in principle, to remove the foundation of the claim.”
“What is not entirely clear from this passage is what the court is to do with the expectation even if it is only a starting point. Mr Blohm suggested that there might be a sliding scale by which the clearer the expectation, the greater the detriment and the longer the passage of time during which the expectation was reasonably held, the greater would be the weight that should be given to the expectation. I agree that this is a useful working hypothesis”
“If I may quote what I said in Biogen Inc. v. Medeva Plc. [1997] R.P.C. 1, 45: “The need for appellate caution in reversing the trial judge's evaluation of the facts is based upon much more solid grounds than professional courtesy. It is because specific findings of fact, even by the most meticulous judge, are inherently an incomplete statement of the impression which was made upon him by the primary evidence. His expressed findings are always surrounded by a penumbra of imprecision as to emphasis, relative weight, minor qualification and nuance … of which time and language do not permit exact expression, but which may play an important part in the judge's overall evaluation.”
“you live here. This is your house. You pay for it.”
“The Claimant had a fair opportunity to meet this case. The First Defendant was cross-examined along the lines that given her age being in her early fifties at the time and her modest income, it was unrealistic to suppose that she would obtain a mortgage loan. She said it would be a buy-to-let mortgage, I take judicial notice of the fact that requirements for borrowers were not onerous and getting a mortgage was a realistic aspiration for her and I accept her evidence that absent the representation she would have done so.”
“If the chief would allow me to move to Nigeria. I have a – I come – I have (inaudible) there in Nigeria; I can start to – if the chief allow me at that time I want to go, I go back to Nigeria…”
“the renovations were funded by third parties.”
“The monies given to undertake the works were give [sic] by way of a gift to [his mother]”
“Q. Now, in your – if we look again in your defence – sir, I think this is going back to page 14 – so, in paragraph – we were looking at paragraph D, so I’m just going to look at this again in the light of what you’ve told His Honour. “On or around from July 2016, the first defendant – that’s you- carried out works and improvements to the property, to the cost of between£50,000 and£60,000 ”
“the fundamental principle that equity is concerned to prevent unconscionable conduct permeates all the elements of the doctrine. In the end the court must look at the matter in the round.”
“What is the equity? It does not turn on whether there was a quasi bargain. She had a reasonable expectation to remain as long as she wishes. The equity is best satisfied by satisfying her expectation and granting a life interest.”