Wills & Anor v Sowray

Proprietary estoppel requires a sufficiently clear assurance, reasonable reliance and substantial detriment caused by that reliance. Clarity is highly contextual, and an assurance that property will be received on the promisor’s death is not subject to a special rule merely because it concerns a will. Detriment is broad and non-technical. The court must assess the position in the round, including countervailing benefits, and ask whether it would be unconscionable to permit the assurance to be withdrawn. Relief must satisfy the equity in a proportionate and principled manner, but need not be confined to financial compensation. An oral agreement concerning land may give rise to a proprietary estoppel notwithstanding section 2 of the Law of Property (Miscellaneous Provisions) Act 1989.

Matthew and James Wills claimed equitable relief against Claire Sowray, the beneficiary and personal representative of Anthony Sowray’s intestate estate. Matthew claimed that Anthony had assured him that he would receive Gilmoor Farm, later accepting that Claire should receive the farmhouse while he received the land and buildings. James claimed that, in exchange for transferring his jeep to Anthony, Anthony agreed that James would receive the plot on which he lived.

Both claimants alleged reliance and substantial detriment over many years. Claire denied the assurances, asserted that the claimants were licensees or tenants, and relied on her statutory inheritance rights. The central issues were whether proprietary estoppels arose, whether section 2 of the Law of Property (Miscellaneous Provisions) Act 1989 barred James’s claim, and what relief would satisfy any equity.

1. Claims succeeded. The court ordered Claire to transfer to Matthew the land and buildings at Gilmoor Farm and to transfer to James the freehold interest in the small plot on which he lived.
2. Proprietary estoppel required assurance, reliance and detriment. The assurance had to be sufficiently clear, but clarity depended heavily on context. In a family relationship, an assurance that the farm would be the claimant’s could be sufficiently clear without express reference to a will. An assurance concerning property to be received on death was not subject to a special legal rule.
3. Matthew proved clear assurances that the farm, and later the land and buildings, would be his. He reasonably relied on them by working the land, maintaining and improving it, purchasing machinery and providing assistance to Anthony. Those matters amounted to substantial detriment when assessed in the round.
4. James proved an oral agreement and assurance that the plot would be transferred to him in return for his jeep. He relied on it by transferring the jeep, installing a log cabin and carrying out substantial works. The fact that the plot was more valuable than the jeep, or that he had lived there rent-free, did not eliminate detriment or make the equity disproportionate.
5. The court applied the broad, non-technical approach in Gillett v Holt, Thorner v Major and Jennings v Rice. Countervailing benefits were relevant, but the court had to assess unconscionability and proportionality rather than balance financial gains and losses mechanically.
6. Anthony’s assurances became irrevocable when acted upon to the claimants’ detriment. His later intentions concerning Claire could not defeat the equities already acquired by Matthew and James.
7. Section 2 of the Law of Property (Miscellaneous Provisions) Act 1989 regulated contractual claims and did not bar a proprietary estoppel arising from the same facts. James’s claim therefore succeeded despite the absence of a written agreement.