The government's website provides guidance for landlords on changes contained in the Renters'...
The High Court has rejected a claim by a disinherited son that he was entitled to inherit his late father’s farm, dismissing both his proprietary estoppel claim and his challenge to the validity of his father’s final two wills.
The decision provides important guidance on the evidential hurdles involved in inheritance disputes, particularly where lifetime promises, family farming businesses and allegations of diminished capacity are relied upon.
Background to the Dispute
The father died in 2018 aged 81, leaving a substantial estate that included a farm used for successful car boot sales. After remarrying in 2016, he made two new wills which left a significant part of his estate to his wife and made no provision for his son.
The son brought proceedings on two main bases:
- a proprietary estoppel claim, alleging that his father had promised him the farm during his lifetime; and
- a challenge to the validity of the 2016 wills, arguing that his father lacked testamentary capacity and did not know or approve their contents.
Proprietary Estoppel Claim Fails
The Court accepted that, in or around 1995, the father had made assurances to the son about the farm. Those assurances had encouraged the son to continue working on the farm and not pursue alternative careers, and the son had reasonably relied on them at the time.
However, the evidence showed that in 2003 the son was informed that those assurances were no longer operative. From that point onwards, he ceased to rely on them.
Although the son had suffered some detriment by continuing to work on the farm, the Court found that this was offset by substantial benefits he had received, including:
- monthly payments of £1,000; and
- 50 per cent of the profits from the car boot sales business.
Taking the position as a whole, the Court concluded that the son had not suffered a net detriment. As a result, the proprietary estoppel claim failed.
Wills Upheld Despite Dementia Diagnosis
The son also argued that the 2016 wills were invalid on the grounds of lack of testamentary capacity and want of knowledge and approval.
The Court accepted that the father had been suffering from dementia when the wills were executed. However, it noted that his estate was complex, involving multiple properties and a large number of children, and that the wills dealt with those interests in a structured and rational way.
The Court found that the father:
- understood the nature of making a will;
- appreciated the extent of his property; and
- understood the claims to which he ought to give effect.
His decision not to provide for his son was not the result of any disorder of mind. The Court was satisfied that he had testamentary capacity and that he knew and approved the contents of the wills.
The son’s claims were therefore dismissed in full.
Q&A: Inheritance Disputes and Proprietary Estoppel
What is proprietary estoppel?
Proprietary estoppel can arise where a person is promised property, relies on that promise, and suffers detriment as a result. If proved, the court may enforce the promise to avoid injustice.
Why did the proprietary estoppel claim fail here?
Although promises had been made, the son stopped relying on them years earlier and had received substantial financial benefits. The Court found no overall detriment.
Can someone with dementia still make a valid will?
Yes. A diagnosis of dementia does not automatically invalidate a will. The key question is whether the person had testamentary capacity at the time the will was made.
What is meant by ‘knowledge and approval’?
The testator must understand and approve the contents of the will. Clear instructions and professional drafting often support this.
What lessons does this case offer families?
It highlights the importance of managing expectations, documenting lifetime arrangements clearly, and ensuring wills are properly prepared, particularly where family dynamics are complex.
Contact Us
Inheritance disputes involving farms and family businesses can be emotionally and legally complex. Our Contentious Probate and Private Client solicitors advise beneficiaries, executors and families on proprietary estoppel claims, will validity challenges and estate disputes.
If you need advice on an inheritance claim or are concerned about being excluded from a will, contact Willett & Co Solicitors today for clear, expert guidance.