"the first and fundamental question which must always be resolved is whether, independent of any inference to be drawn from the conduct of the parties in the course of sharing the house as their home and managing their joint affairs, there has any time prior to the acquisition or exceptionally at some later date been any agreement, arrangement or understanding reached between them that the property is to be shared beneficially."
"I have referred, in the immediately preceding paragraphs, to 'cases of this nature'. By that, I mean cases in which the common features are: (1) the property is bought as a home for a couple who, although not married, intend to live together as man and wife; (ii) each of them makes some financial contribution to the purchase; (iii) the property is purchased in the sole name of one of them; and (iv) there is no express declaration of trust. In those circumstances the first question is whether there is evidence from which to infer a common intention, communicated by each to the other, that each shall have a beneficial share in the property. In many such cases - of which the present is an example - there will have been some discussion between the parties at the time of the purchase which provides the answer to that question. Those are cases within the first of Lord Bridge's categories in Rosset's case. In other cases - where the evidence is that the matter was not discussed at all - an affirmative answer will readily be inferred from the fact that each has made a financial contribution. Those are cases within lord Bridge's second category. And, if the answer to the first question is that there was a common intention, communicated to each other, that each should have a beneficial share in the property, then the party who does not become the legal owner will be held to have acted to his or her detriment in making a financial contribution to the purchase in reliance on the common intention."
"As in so many branches of English law in which legal rights and obligations depend upon the intentions of the parties to a transaction, the relevant intention of each party is the intention which was reasonably understood by the other party to be manifested by that party's words of conduct notwithstanding that he did not consciously formulate that intention in his own mind or even acted with some different intention which he did not communicate to the other party. On the other hand, he is not bound by any inference which the other party draws as to his intention unless that inference is one which can reasonably be drawn from his words or conduct. It is in this sense that in the branch of English law relating to constructive, implied or resulting trusts effect is given to the inferences as to the intentions of parties to a transaction which a reasonable man would draw from their words or conduct and not to any subjective intention or absence of intention which was not made manifest at the time of the transaction itself. It is for the court to determine what those inferences are."
"The appellant seeks support in that passage for two propositions: (i) that cases in the first class are confined to those in which there is evidence of discussions between the parties directed not only to the question whether each should have some beneficial interest in the property but also, expressly, to the extent of their respective interests and (ii) that, in cases which do not fall within that first class, direct contributions to the purchase price by the party who is not the legal owner will both justify the inference of a common intention to share the property beneficially and, necessarily, define the extent of the respective beneficial interests. In my view that passage in Rosset's case supports neither of those propositions. As I have said, a case will not fall within the first class unless there is evidence of some agreement, arrangement or understanding, usually prior to acquisition, that each party should have some beneficial interest in the property; but it is not necessary that that agreement, arrangement or understanding extends to defining the extent of the respective shares. If a case does not fall within the first class it may, nevertheless, fall within the second class if common intention can be inferred from conduct; and direct contributions to the purchase price will be conduct from which such common intention can readily be inferred. But the relevant common intention is that each party should have some beneficial interest. Direct contributions to the purchase price may lead to an inference that each party should have some beneficial interest without necessarily leading to the further inference that their respective shares should be proportionate to the amount of the direct contributions. When the passage in Rosset's case on which the appellant relies is read in the light of Lord Bridge's indoresement of the analysis in McFarlane v McFarlane and the reasoning in Grant v Edwards it will not bear the construction which the appellant seeks to put upon it."
"5. There is no dispute between the parties as to the applicable law. In order to succeed, Mr Lightfoot must establish that he has acted to his detriment on the faith of an agreement or understanding that the property was to be shared beneficially. This agreement or understanding may be established by evidence either of discussions amounting to an agreement or understanding, however imperfectly expressed, or of conduct from which the inference of an agreement or understanding may be drawn. For these propositions my attention was drawn to the well-known cases of Pettitt v Pettitt[1970] AC 777 , at p818b-f; Lloyds Bank Plc v Rosset[1991] AC107 , at pp127g-h and 132g-133b; and Grant v Edwards[1986] Ch 638 , at pp 652g-h and 656g-h. In addition, I was reminded that it is not enough that each party may coincidentally have the same intention as to the beneficial interests: in order to form the basis of a claim the intention must not only have been shared by the parties but also communicated between them. See Springette v Defoe[1992] 2 FLR 388 , at pp393D-G and 394-395B. 10. It is in the light of these findings that Mr Lightfoot's payments in respect of the mortgage loans must be viewed. The payments in respect of the regular instalments are readily explicable; they were partly a substitute for the maintenance payments due under the consent order and partly an acknowledgment that Mr Lightfoot was continuing to live in a house that was no longer his. The£41,000 , which I accept was paid, is harder to explain: it can only have been made in expectation that Mr Lightfoot would benefit from it, and that implies a belief that he had or would have an interest in Mitchelswood Farm. It seems to me, however, that that belief stems from the fact that he believed that he and Mrs Lightfoot-Brown were going to remarry, and he knew from his discussions with her that if that happened she would retransfer to him a share in Mitchelswood Farm. In the absence of an agreement or understanding that he would have such a share whether or not they remarried (and I have already said that there was no such agreement or understanding), that is not enough to give him a beneficial interest. That is particularly so because Mrs Lightfoot-Brown did not know about the payment. Her evidence was to that effect, and I accept it. The overwhelming impression I gained from the evidence of both parties was that it was Mr Lightfoot who had charge of the family finances, and neither he nor Mrs Lightfoot-Brown expected her to have anything but a general knowledge of how they operated. Mr Lightfoot's reason for making the payment of£41,000 was to ensure that the whole remaining balance of the mortgage debt qualified for tax relief either as a business loan or through MIRAS; and on my understanding of their relationship I think it most unlikely that he would have thought either the fact of payment or the reason for it something that it was relevant for Mrs Lightfoot-Brown to know. By the same token, I accept that the payments, both of the regular instalments and the£41,000 , and for that matter the cost of the improvements (which seem to me to have been paid for by Mr Lightfoot in the same belief that there would be a remarriage), are to be treated as having been made by Mr Lightfoot alone. It is true that the parties ran some of their business activities through the medium of a partnership; but I accept Mr Lightfoot's evidence that the family income was almost entirely derived from his earnings as a computer consultant; and it seems to me that he is entitled to regard those earnings as the true source of the payments. However, the mere fact of the payments cannot give rise to an equitable interest unless there was some understanding or arrangement that Mr Lightfoot should have one; and, as I have indicated, I consider that the only understanding or agreement was in effect conditional on a remarriage which in fact never occurred."
"This agreement or understanding may be established by evidence .... of conduct from which the inference of an agreement or understanding may be drawn"
"The payments in respect of the regular instalments are readily explicable."