Proprietary estoppel

What is proprietary estoppel?

A: A doctrine preventing a landowner from denying rights in land where they assured someone of rights, that person relied on the assurance, suffered detriment, and it would be unconscionable to deny the claim.

What are the three core elements of proprietary estoppel?

1. Assurance

2. Reliance

3. Detriment
   (All assessed through overall unconscionability.)

Why does proprietary estoppel exist?

A: To prevent unfairness where strict legal formalities would otherwise defeat reasonable expectations relating to land.

Can proprietary estoppel create rights in land?

A: Yes. It can operate as a “sword” to create proprietary rights, not just as a defence.

What does s116 LRA 2002 provide regarding proprietary estoppel?

A: An equity by estoppel is capable of binding successors in title as an interest in land.

What must an assurance in proprietary estoppel be?

Clear enough in its context and related to identifiable property rights.

What did Thorner v Major establish?

Assurances can be indirect or implied if sufficiently clear in context.

What is an example of a clear active assurance?

“The house is yours and everything in it.”

What is passive assurance/acquiescence?

Where a landowner knowingly allows another to act under a mistaken belief about land rights without correcting them.

Why did the claim fail in Cobbe v Yeoman’s Row?

A: The claimant only had a commercial expectation during negotiations, not a clear assurance of a proprietary right.

What is the significance of Gillett v Holt?

Repeated assurances about inheritance of a farm were sufficient to found proprietary estoppel.

What must the claimant prove regarding reliance?

That the assurance influenced their conduct or change of position.

When is reliance presumed?

: When the representation was intended to influence a reasonable person.

Must the assurance be the only reason for the claimant’s actions

No. It only needs to be one inducement

Why did Coombes v Smith fail?

: The claimant acted because of the relationship itself, not in reliance on a belief she had property rights.

What counts as detriment in proprietary estoppel?

A: A substantial disadvantage suffered in reliance on the assurance; not limited to financial loss.

What did Gillett v Holt say about detriment?

Detriment is not a narrow or technical concept and is judged broadly.

Give examples of detriment.

• Working for little/no pay

• Caring for someone

• Improving land/property

• Giving up opportunities elsewhere

What detriment was recognised in Henry v Henry?

A: The claimant gave up opportunities for a better life elsewhere in reliance on assurances.

Q: Why is unconscionability important in proprietary estoppel?

The court asks whether it would be unconscionable to allow the landowner to deny the assurance.

What is the aim of remedies in proprietary estoppel?

A: To satisfy the equity and avoid an unconscionable result.

What principle came from Crabb v Arun DC?

A: The court should award the “minimum equity to do justice.”

What did Jennings v Rice establish about remedies?

Remedies must be proportionate to the claimant’s expectation and detriment.

What is the “sliding scale” approach from Davies v Davies?

: The stronger the expectation, detriment, and reliance over time, the more weight given to fulfilling the expectation.

What remedy approach was used in Guest v Guest?

The court balanced fulfilling expectations with fairness to both parties and allowed either compensation or eventual transfer of the farm interest.

Thorner v Major [2009]

The assurance must be “clear enough”, but clarity depends on context (informal family/business settings can still create valid assurance).
Vague but consistent conduct over time can be enough.

Gillet v Holt [2001]

Repeated and consistent promises (e.g. inheritance of farm) over many years can amount to clear assurance.
Shows assurance can arise from long-term conduct, not just one statement.

Cobbe v Yeoman’s Row [2008]

No proprietary estoppel where the arrangement is commercial and “subject to contract”.
Mere expectation in negotiations ≠ enforceable assurance.
Statute (formalities) cannot be bypassed.

Greasley v Cooke [1980]

Reliance is presumed if assurance would influence a reasonable person.
➡ Defendant must disprove reliance.

Wayling v Jones [1995]

Must assurance be the only reason for action?
A: No — it only needs to be a significant inducement, not the sole cause

Re Basham [1983]

Cumulative detriment counts (money, care, life choices).
Look at whole course of conduct, not isolated acts.

Henry v Henry [2010

Includes loss of opportunity (e.g. staying in difficult circumstances instead of better life elsewhere).
➡ Not just financial loss.

Taylors Fashions v Liverpool Victoria [1982]

Would it be unconscionable to allow the defendant to go back on the assurance?
Replaces rigid categories with fairness-based approach.

Crabb v Arun DC [1976

Minimum equity to do justice”
Court grants only what is necessary to prevent unfairness.

Jennings v Rice [2003]

Remedy must be proportionate, not automatically expectation-based.
Balance expectation vs detriment.

Guest v Guest [2022] UKSC

Court can choose:

• fulfil expectation (land transfer), OR

• monetary compensation
  Aim: avoid unconscionability, ensure fairness to both parties.

Sledmore v Dalby [1996

When might claimant get nothing?
A: If they’ve already received enough benefit (e.g. long-term rent-free occupation).
➡ Equity can be “satisfied” already.

Pascoe v Turner [1979]

What is the strongest remedy case?
A: Full transfer of property to satisfy expectation.
➡ Court enforces promise directly