Guest (A’s) v Guest (R) [2022] UKSC 27. Proprietary estoppel (PE). Bullet point law made simple!

Gary Fawcett (1975)

A’s owned a farm.  In 1981, their wills provided for their two sons to inherit the farm equally, subject to their daughter receiving 20% of their estate.

R, their eldest son worked on their farm from 1982 for 32 years, for a low wage.

The relationship soured between A’s and R, and in 2014 A’s removed R as a beneficiary under their wills and gave him notice to quit the farm.

A issued, claiming he was entitled to a share of the farm or its monetary equivalent based on equitable estoppel.

The first instance judge held:-

 

  • A had worked for little financial reward because he relied on the assurances from A’s as to his inheritance and
  • awarded R £1.3m, equivalent to 50% of the value of the dairy farming business and 40% of the value of the freehold of the farming land & buildings.

The Court of Appeal agreed with the trial judge.

The Supreme Court held in favour of R, three to two but by varying the original order.

  • The three allowed the appeal in part & substituted alternative remedies,
  • Either put the farm into trust in favour of their children OR
  • pay R compensation with a reduction for accelerated payment at the choice of A’s. 
  • The two dissenting would have allowed the appeal on different grounds, with a different remedy.

Opinions of the three.

 

  • Purpose of PE is to prevent or compensate for the unconscionability of a person going back on a promise upon which another person had relied to their detriment.
  • Simplest remedy is to enforce the promise, but look at other remedies eg compensation taking into account injustice to others.
  • Remedy must not be out of proportion to detriment suffered.
  • Discount required for accelerated compensation payment.
  • Consider justice in all the circumstances.
  • The trial judge did not adequately discount compensation for accelerated payment.
  • The parents should be entitled to choose - either put the farm in trust for 3 children with  a life interest to themselves OR
  • pay compensation, which if not agreed is to be determined by a Chancery Judge.

Opinions of the two.

  • Expressed in terms of unconscionability, what the law regards as unconscionable is not A’s failure to keep a non-binding promise.  It is A’s failure to accept responsibility for the consequences of B’s reasonable reliance on the promise and for ensuring that B does not suffer detriment as a result of such reliance.
  • Court may either compel performance of the promise or order equivalent payment on the basis that the promise had been performed OR award compensation putting R into as good a position as if they had not relied upon the promise the court adopting whichever provides the minimum necessary to meet the aim.
  • The sum would be £610k, calculated in an appendix to the opinion.

Moral of the story, be careful what you promise !

Legal expertise we offer at No.18 Chambers

 Title Image

Public Law Children: Care Proceedings and Adoption

Our specialist public law care barristers are well-known experts in providing advice and advocacy in public law children proceedings for all parties including parents, children, wider family members (...

Learn More About Public Law Children: Care Proceedings and Adoption

 Title Image

Private Law Children: Residence and Contact

The Care & Children team are a well-established and highly committed team of practitioners with a depth and breadth of experience in both private and public law matters at all levels of call to en...

Learn More About Private Law Children: Residence and Contact

 Title Image

Family: Finance

The Family Finance team is a well-established and highly committed team of practitioners with a wealth of experience in matrimonial finance and trusts of land....

Learn More About Family: Finance

 Title Image

Employment & Discrimination

Chambers has a well-established employment practice. Members of our team provide a high quality, effective and approachable service, focusing on the particular needs of the client. We regularly repres...

Learn More About Employment & Discrimination

 Title Image

Chancery and Commercial

Members of the Chancery & Commercial practice group cover a broad and diverse range of disputes, we are highly experienced, able to assist with both non contentious and contentious issues and able...

Learn More About Chancery and Commercial

 Title Image

Personal Injury & Clinical Negligence

Members of Chambers act for both claimants and defendants in personal injury, clinical negligence, product liability and fatal accident claims. We have experienced advocates at all levels of seniority...

Learn More About Personal Injury & Clinical Negligence

 Title Image

Immigration

Members of Chambers offer advice and representation in respect of a full range of immigration and asylum matters; representing clients across the country in the First Tier Tribunal; the Upper Tribunal...

Learn More About Immigration

 Title Image

Property

Members of Chambers advise and represent clients in the full range of property matters appearing in the County Court, High Court, Appellate Courts and the Land Tribunal....

Learn More About Property

 Title Image

Out of Court Solutions (NCDR)

No.18 Chambers pride ourselves on being forward thinking especially in the ever changing climate that we face at the present. Having developed one of the strongest and diverse local Family and Civil t...

Learn More About Out of Court Solutions (NCDR)

Our Accreditations Highlight Our Legal Expertise

Bar Standards GDPR FLBA Resolution apil ela Bar None Pro Bono Recognition List 2024 Logo

© No.18 Chambers 2025. Website by Cdesign