The breakdown of a long-term cohabitation is a deeply stressful period, one made even more complex when a family home is jointly owned. A common question that arises years after a split is how the "equity"—the value of the house—should be divided, particularly when one partner has stayed in the home and paid the mortgage alone for decades. The High Court recently addressed this precise scenario, offering essential guidance for unmarried couples on how the law "imputes" fairness when there is no written agreement.
Background:
The appellant and respondent cohabited from circa 1992 to 2003. During their relationship, they had purchased a property at Warrels Place using a deposit gifted by the appellant's mother and a joint mortgage, before selling it in 2000 to buy the disputed property. Both parties were registered proprietors. After their separation, the appellant remained in the property with their three children and bore sole responsibility for mortgage payments, council tax, repairs, and endowment policy contributions, while the respondent's only financial contribution was child maintenance payments.
In 2023, the respondent brought a claim under the Trusts of Land and Appointment of Trustees Act 1996, or ‘ToLATA’, seeking a determination of his beneficial interest and an order for sale. The original trial Judge faced the difficult task of deciding how the parties' "common intention" had shifted since their separation in 2003. Without a clear conversation or written document between the former partners at the time they broke up, the Court had to look at their conduct to decide what a fair division of the property's value might look like two decades on.
Decision:
The High Court dismissed the appeal and upheld the original split. The Court emphasised that when a judge is asked to "impute" an intention, they are determining what reasonable and just people would have intended had they thought about it at the time. The Judge found that the mother’s sole mortgage payments were indeed a major factor, which is why her share increased from 50% to over 80%. However, the Court also noted that the father’s child maintenance payments "assisted with running the family home" and could not be ignored. Critically, the Court confirmed that a joint owner is generally entitled to benefit from the natural increase in property market values, even after they move out, unless there is a very strong reason to "freeze" their interest at the date of separation.
Implications:
This ruling highlights the inherent unpredictability of relying on the court’s "evaluative judgement" rather than a formal legal agreement. For cohabiting couples, as a starting point, the most vital lesson is that "equity follows the law". If the names of both partners are on the deeds, the court starts at an equitable 50/50 split. To move away from such parity, the court must perform a holistic survey of the "whole course of dealing" between the parties. This includes not just financial contributions to the mortgage, but also who paid the bills, who looked after the children, and even the "benefit of occupation" enjoyed by the partner who stayed in the house rent-free while the other was excluded from their capital.
Furthermore, the case serves as a warning against the "arithmetical" approach. Many clients assume that if they pay 90% of the costs, then they are automatically entitled to 90% of the house. As this case shows, the court rejects a purely mathematical formula in favour of a broader sense of fairness. It also underscores the danger of appealing a "fairness" decision. In effect, by asking the High Court to look at the numbers again, the mother actually highlighted that the father’s £70,000 in child maintenance might have justified an even higher share for him than the 19.3% he received. To avoid these costly and uncertain decade-long disputes, cohabiting couples are strongly advised to enter into a Declaration of Trust or a ‘Cohabitation Agreement’, which clearly defines what happens to the home’s value if the relationship ends.
