Lord Denning MR held: ‘Estoppel is not a rule of evidence. It is not a cause of action. It is a principle of justice and of equity. It comes to this. When a man, by his words or conduct, has led another to believe in a particular state of affairs, he will not be allowed to go back on it when it would be unjust or inequitable for him to do so. Dixon J [in Grundt v Great Boulder Pty Gold Mines Ltd [1937] HCA 58; (1937) 59 CLR 641 at 674] put it in these words: ‘The principle upon which estoppel in pais is founded is that the law should not permit an unjust departure by a party from an assumption of fact which he has caused another party to adopt or accept for the purpose of their legal relations.’
In 1947, after the High Trees case [Central London Property Trust Ltd v High Trees House Ltd (1946) [1956] 1 All ER 256, [1947] KB 130], I had some correspondence with Dixon J about it, and I think I may say that he would not limit the principle to an assumption of fact, but would extend it, as I would, to include an assumption of fact or law, present or future. At any rate, it applies to an assumption of ownership or absence of ownership. This gives rise to what may be called proprietary estoppel. There are many cases where the true owner of goods or of land had led another to believe that he is not the owner, or, at any rate, is not claiming an interest therein, or that there is no objection to what the other is doing. In such cases it has been held repeatedly that the owner is not to be allowed to go back on what he has led the other to believe. So much so that his own title to the property, be it land or goods, has been held to be limited or extinguished, and new rights and interests have been created therein. And this operates by reason of his conduct – what he had led the other to believe – even though he never intended it.’
Lord Denning MR
[1976] QB 225, [1975] RTR 528, [1975] 3 WLR 286, [1975] 3 All ER 314
England and Wales
Cited by:
Cited – Western Fish Products Ltd v Penwith District Council and Another CA 22-May-1978
Estoppel Cannot Oust Statutory Discretion
The plaintiff had been refused planning permission for a factory. The refusals were followed by the issue of Enforcement Notices and Stop Notices. The plaintiff said that they had been given re-assurances upon which they had relied.
Held: The . .
These lists may be incomplete.
Updated: 14 June 2021; Ref: scu.652456