Thorner v Major [2009] UKHL 18

David Thorner worked unpaid for nearly 30 years on his cousin Peter's Somerset farm, relying on oblique assurances that he would inherit it. Peter died intestate. The House of Lords upheld David's proprietary estoppel claim, restoring the trial judge's order granting him the farm.

Facts

The appellant, David Thorner, a Somerset farmer, worked substantial unpaid hours on Steart Farm, owned by his father’s cousin Peter Thorner, from 1976 until Peter’s death in 2005. Peter was described as a taciturn man of few words who rarely spoke directly. From 1990 onwards, Peter made a series of oblique remarks and gestures indicating that David would inherit the farm. The key watershed moment occurred in 1990 when Peter handed David a Prudential Bonus Notice relating to two life assurance policies, saying

That’s for my death duties

. Further indirect remarks followed over the next fifteen years, such as Peter pointing out features of the farm that would only be relevant to a future owner. Peter made a will in 1997 leaving the residuary estate to David, but destroyed it in 1998 following a dispute with a legatee, and never made another. He died intestate in 2005. The farm’s extent varied over time, ranging from 350 acres in 1976 to 463 freehold acres (plus 120 tenanted) at Peter’s death.

Issues

Two principal issues arose: (1) whether Peter’s oblique and indirect assurances were sufficiently clear and unequivocal, and intended to be relied upon, to found a claim in proprietary estoppel; and (2) whether the claim failed because the property subject to the assurance (the farm) had changed in extent over time and was thus insufficiently certain.

Arguments

Appellant (David)

David contended that the deputy judge’s findings of fact established all three elements of proprietary estoppel: assurance, reliance and detriment. He argued that the ‘clear and unequivocal’ test either did not strictly apply to proprietary estoppel or was satisfied on the facts, and that the assurances, viewed in context, were intended to be taken seriously.

Respondents (Personal Representatives)

The respondents argued that the statements were not ‘clear and unequivocal’ assurances but merely statements of present intention; that there was no finding that Peter intended David to rely on them; that the property was insufficiently certain because the farm’s extent fluctuated; and that Cobbe v Yeoman’s Row reinforced the requirement of certainty.

Judgment

The House of Lords unanimously allowed the appeal and restored the deputy judge’s order. Lord Walker held that the relevant assurance must be ‘clear enough’, with sufficient clarity being heavily dependent on context. Adopting Hoffmann LJ’s formulation in Walton v Walton, the promise must be

unambiguous and must appear to have been intended to be taken seriously. Taken in its context, it must have been a promise which one might reasonably expect to be relied upon by the person to whom it was made.

The Court of Appeal had erred in requiring proof of Peter’s subjective intention that David rely on the assurances, and had given insufficient weight to the trial judge’s advantage in seeing the witnesses and assessing the unusual context of two taciturn countrymen.

Lord Hoffmann emphasised that the question was objective: whether Peter’s words and acts would reasonably have conveyed to David an assurance he would inherit. It was unnecessary that Peter know of specific alternative opportunities David might forego; it sufficed that the assurance was reasonably understood as intended to be taken seriously. Lord Rodger agreed that oblique language, interpreted in the context of the parties’ relationship, could constitute a sufficiently clear assurance.

On the certainty issue, Lord Walker and Lord Neuberger distinguished Cobbe v Yeoman’s Row, which concerned a commercial arm’s-length negotiation without a concluded contract. In contrast, this was a familial, non-commercial context where the subject-matter — the farm as it existed from Peter’s death — was conceptually identifiable, even if its precise extent would crystallise only at death, analogous to a floating charge. Changes in the farm’s extent did not defeat the estoppel.

Lord Scott, while agreeing with the result, preferred to analyse inheritance-based cases as remedial constructive trusts rather than proprietary estoppel, reserving proprietary estoppel for unconditional representations about immediate property interests.

Implications

The decision affirms that proprietary estoppel can arise from implicit, oblique or indirect assurances provided they are ‘clear enough’ when assessed in context. The meaning of spoken words in this setting is largely a question of fact, entangled with the surrounding circumstances, giving appellate courts limited scope to interfere with trial judge findings. The case confirms that proprietary estoppel remains viable in familial and domestic contexts notwithstanding Cobbe v Yeoman’s Row, which is to be understood as largely confined to commercial settings where parties have consciously chosen not to contract.

The decision clarifies that assurances about future inheritance can ground proprietary estoppel even where the exact extent of the promised property may fluctuate, provided the property is conceptually identifiable at the point the promise falls due. The retrospective nature of equitable estoppel — looking backwards from the moment the promise falls due — means courts need not resolve hypothetical future contingencies.

The case is important to practitioners advising in farming and family succession disputes, estate planning, and constructive trust claims. It also leaves open unresolved points: the precise boundary between proprietary estoppel and constructive trust (on which the Lords diverged); whether assurances in inheritance cases are inherently revocable; and the correctness of Re Basham insofar as it extends to entire residuary estates.

Verdict: Appeal allowed. The order of the deputy judge, Mr John Randall QC, was restored, declaring that Peter Thorner’s personal representatives held Steart Farm together with its live and dead stock, chattels and cash at bank on trust for David Thorner absolutely.

Source: Thorner v Major [2009] UKHL 18