Constructive trusts — common intention and the family home

The common intention constructive trust is the principal equitable device by which English law recognises beneficial interests in the family home where the legal title does not tell the whole story. It is most often litigated between unmarried cohabitants, former partners, or family members, but the doctrine is not a law of cohabitation as such. It remains a doctrine of trusts: a claimant must show that equity should recognise a beneficial interest in land, notwithstanding the formal position at law.

For Durham purposes this topic sits directly after resulting trusts. Week 5 explained the resulting trust as a response to contribution to purchase price and the presumed intention that beneficial ownership should follow that contribution unless displaced. Week 6 concerns a more flexible but more contested jurisdiction. The common intention constructive trust asks whether the parties shared an intention that the claimant should have a beneficial interest, and whether the claimant acted to his or her detriment in reliance on that intention. The inquiry then turns, if necessary, to quantification: what share is the claimant to receive?

The modern law is dominated by two situations. First, sole legal owner cases: A is registered proprietor; B claims a beneficial share. Here the claimant must establish a common intention that B should have an interest, usually by express discussions or by inference from conduct, together with detrimental reliance. Secondly, joint legal owner cases: A and B are registered as joint proprietors; one contends that the beneficial shares are unequal. Since Stack v Dowden and Jones v Kernott, equity starts by following the law: joint legal ownership presumptively means joint beneficial ownership. That presumption may be rebutted by evidence that the parties had a different common intention, judged in light of their whole course of conduct.

The doctrinal difficulty is obvious. Equity must mediate between formal title, informal domestic arrangements, the need for certainty in land law, and the perceived injustice of denying proprietary recognition to a partner who has contributed to family life, mortgage payments, children, maintenance, or improvement. The courts insist that they are searching for intention, not dispensing discretionary fairness. Yet the language of inferred and imputed intention, especially at the quantification stage, has made the boundary between intention and fairness unstable.

In examination, the highest marks come from separating acquisition from quantification. Do not begin by asking what is fair. Ask first whether the claimant has acquired any beneficial interest at all. Only then ask how that interest is measured. Equally, do not treat Stack and Jones as abolishing Rosset. Rosset remains especially important in sole-name cases, though its restrictive approach has been heavily criticised and partially softened by later reasoning. The best answers understand the cases as a movement from a contribution-centred orthodoxy towards a contextual domestic analysis, but without converting equity into a general jurisdiction to redistribute family assets.

The modern common intention constructive trust developed because orthodox property law could not adequately deal with informal acquisition of interests in the shared home. English land law is formally demanding. Legal estates in land are transferred by deed and registration; declarations of trust respecting land must be evidenced in writing; dispositions of subsisting equitable interests must comply with statutory formality requirements. Domestic life, by contrast, is often informal. Cohabitants rarely execute declarations of trust. They arrange mortgage payments, domestic expenditure, renovations and childcare without legal advice. Equity was therefore required to decide when informal arrangements should have proprietary consequences.

The early background lay in resulting trust reasoning. Where one person contributed directly to the purchase price of a property held in another's name, equity could presume that the contributor was intended to have a beneficial interest proportionate to that contribution. This was tolerable for commercial transactions, but crude in the domestic setting. It privileged the person who paid the deposit or mortgage instalments and undervalued indirect contributions, such as paying household expenses so that the legal owner could meet the mortgage. It also failed to explain cases where the claimant had been encouraged to believe in ownership without making an arithmetical purchase contribution.

The House of Lords in Pettitt v Pettitt and Gissing v Gissing confronted the problem in the context of spouses. The courts rejected a broad judicial discretion to allocate property according to what seemed fair. That rejection matters. Parliament has conferred redistributive powers on divorce courts; equity has not conferred an equivalent jurisdiction on judges in ordinary property litigation between cohabitants. Gissing nevertheless permitted the recognition of a constructive trust where the parties had a common intention, express or inferred, that both should have a beneficial interest, and the claimant had acted on that intention.

During the 1970s and 1980s, the Court of Appeal attempted to make the doctrine responsive to domestic realities. Eves v Eves and Grant v Edwards recognised that express assurances could be enough, even where the reason given for non-inclusion on the title was false or paternalistic, provided the claimant acted to her detriment. The courts were willing to treat significant work on the home, family labour or financial arrangements as reliance where connected to the assurance of ownership.

Lloyds Bank plc v Rosset then imposed a restrictive structure. Lord Bridge identified two routes: first, express agreement, arrangement or understanding, however imperfectly remembered, plus detrimental reliance; secondly, in the absence of express agreement, inference from conduct, where direct contributions to purchase price or mortgage were treated as the paradigm and other conduct was said to be unlikely to suffice. Rosset brought certainty but at a cost. It narrowed the evidential significance of non-financial domestic contributions and made the doctrine appear misaligned with the social reality of cohabitation.

The later cases, especially Oxley v Hiscock, Stack v Dowden and Jones v Kernott, moved away from a rigid purchase-money model. They emphasised the whole course of dealing between the parties, especially in joint-name cases. The inquiry became more holistic: why was the property acquired, how was it financed, how were finances organised, what responsibilities were undertaken, and how did the parties conduct themselves over time? Yet the courts did not create a free-standing remedial constructive trust. English law still treats the common intention constructive trust as institutional: it arises from the parties' dealings, not from a judicial order made because fairness demands it.

The historical arc is therefore one of tension. The doctrine begins as an exception to formality and resulting trust orthodoxy; it expands to correct domestic unfairness; it is constrained by Rosset; and it is later re-expressed through presumptions and contextual intention. That history is indispensable in Durham essays because it explains why the present law is doctrinally unsettled: it is doing social work while speaking the language of intention.

The first principle is that legal title is the starting point. If land is in the sole name of A, the starting presumption is that A owns the whole beneficial interest. If land is in the joint names of A and B, the starting presumption after Stack v Dowden is that A and B are joint beneficial owners in equal shares. These are presumptions, not irrebuttable rules. The equitable inquiry asks whether the parties' common intention shows a different beneficial position.

The second principle is the distinction between acquisition and quantification. Acquisition asks whether the claimant has any beneficial interest. Quantification asks the size of that interest. Many weak answers merge the two by asserting that a claimant deserves a percentage because he or she behaved unfairly or made sacrifices. That is not the law. In a sole-name case, the claimant must first establish the existence of a common intention that he or she should have an interest and detrimental reliance on it. Only then may the court determine the share. In a joint-name case, acquisition is usually straightforward because both are legal owners; the dispute concerns whether the presumed equal beneficial shares should be displaced.

Thirdly, common intention may be express, inferred, and, in limited contexts, imputed. Express common intention arises from words or discussions indicating that both parties understood that the claimant would have an interest. The language need not be technically precise. Domestic parties do not normally speak in terms of equitable co-ownership. Statements such as 'this will be our home', 'you will have a share', or explanations for why a name was omitted may be relevant, but the court must be satisfied that they amount to a shared intention about ownership, not merely occupation or emotional commitment. In Grant v Edwards, the explanation that the claimant was not put on title because it might prejudice divorce proceedings supported an inference that she was otherwise intended to have a share.

The leading authorities form a sequence rather than a set of isolated propositions. Gissing v Gissing supplied the foundation. It rejected a broad redistributive discretion and located the claimant's entitlement in common intention, express or inferred from conduct. The case also revealed the difficulty of using resulting trust reasoning in domestic relationships: the claimant's indirect contributions to household life were not enough on the facts, but the reasoning opened the door to constructive trust analysis where intention and reliance could be shown.

Eves v Eves and Grant v Edwards are important because they illustrate the express-assurance route. In each, the claimant was not on the legal title, but there was evidence that she had been led to believe that she would have an interest. The courts were willing to treat explanations for non-registration as evidence of a common intention. The claimant's subsequent labour, domestic contribution or financial conduct supplied the necessary detriment. These cases show that equity may look past the literal reason given and ask whether the assurance conveyed ownership.

Lloyds Bank plc v Rosset is the orthodox restrictive statement. Lord Bridge separated cases of express agreement from cases where intention must be inferred from conduct. The second category was narrowed by the proposition that direct contributions to purchase price or mortgage were the principal basis from which an intention could be inferred. Rosset therefore made acquisition difficult for claimants whose contributions were indirect or domestic. Although frequently criticised, it remains highly relevant in sole legal owner cases.

Oxley v Hiscock marks a transitional stage. The Court of Appeal accepted that where both parties contributed to acquisition but had no express agreement as to shares, the court should award the share which, having regard to the whole course of dealings, was fair. That language of fairness was later refined, but Oxley is significant because it moved away from rigid arithmetic and anticipated Stack's contextual inquiry.

Stack v Dowden is the leading joint-name authority. The House of Lords held that joint legal ownership presumptively means joint beneficial ownership, but the presumption can be rebutted by evidence of a different common intention. The parties' highly unusual financial separation and unequal contributions justified unequal shares. Stack also suggested that the domestic context differs from commercial property and that the resulting trust is not usually the appropriate model for the family home.

Jones v Kernott clarified and extended Stack. The Supreme Court held that beneficial shares may change over time and that, where actual intention cannot be inferred, the court may impute an intention as to what shares are fair having regard to the whole course of dealing. The decision is essential on quantification and on the possibility of ambulatory common intention. It should not be read as allowing courts to invent acquisition in every sympathetic sole-name case.

Abbott v Abbott, a Privy Council decision, reinforced the whole-course approach in a domestic setting. Though not binding in the same way as a Supreme Court decision, it influenced the trajectory towards a broader evidential inquiry. The landmark cases therefore move from purchase-money orthodoxy to contextual intention, but the doctrine still presents itself as trust law rather than statutory family property redistribution.

See practice questions section below.

See further reading section below.