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Equity and Trust – Constructive Trust
Introduction
A constructive trust is an equitable remedy and legal mechanism imposed by the court where it would be unconscionable for a person holding property to deny another person’s beneficial interest in that property.
Unlike an express trust, a constructive trust does not arise because parties intentionally created it. Instead, it is:
✅ imposed by operation of law.
The court imposes the trust in order to achieve fairness, prevent unjust enrichment, and respond to wrongdoing or unconscionable conduct.
Constructive trusts are extremely important in:
Definition
A constructive trust arises where:
equity considers it unconscionable for the legal owner of property to retain the beneficial interest exclusively.
The legal owner therefore becomes:
✅ a constructive trustee
holding the property for the benefit of another person.
Main Feature
A constructive trust is:
✅ proprietary.
This means the claimant obtains:
Purpose of Constructive Trusts
Constructive trusts serve several functions:
Common Situations Where Constructive Trusts Arise
Constructive trusts commonly arise in:
Example 1 – Breach of Trust
Assume Daniel is trustee of the Carter Family Trust.
Daniel wrongfully takes:
£200,000
from the trust and buys shares.
The beneficiaries may trace into the shares.
The court may declare that Daniel holds the shares on:
✅ constructive trust
for the beneficiaries.
Result
The beneficiaries acquire:
✅ proprietary rights over the shares.
They may therefore:
Example With Figures
Trust Money Taken
£200,000.
Shares Purchased
£200,000.
Shares Later Worth
£1 million.
Result
If a constructive trust is imposed:
✅ the beneficiaries may claim the shares themselves,
worth:
£1 million.
This is far more valuable than merely recovering:
❌ £200,000 compensation.
Constructive Trust vs Equitable Compensation
This distinction is very important.
Equitable Compensation
Creates:
✅ personal liability only.
The claimant merely becomes a creditor.
Constructive Trust
Creates:
✅ proprietary rights in the property itself.
This is usually stronger.
Example 2 – Secret Profit
Suppose a trustee uses trust information to purchase land personally and later sells it for profit.
Equity may impose a constructive trust over:
Example 3 – Family Home Cases
Constructive trusts also arise in domestic property disputes.
Suppose:
✅ constructive trust
for Alice.
Alice therefore acquires a beneficial interest in the property.
Institutional vs Remedial Constructive Trusts
This is a major academic distinction.
Institutional Constructive Trust
Arises automatically by operation of law once relevant events occur.
English law traditionally prefers this approach.
Example
A trustee misappropriates trust money to buy shares.
The constructive trust arises immediately when the wrongful acquisition occurs.
Remedial Constructive Trust
Arises only when imposed by the court as a discretionary remedy.
This approach is more common in:
Relationship With Tracing
Constructive trusts are closely connected with equitable tracing.
Tracing identifies:
✅ where the property has gone.
The constructive trust then gives:
✅ proprietary rights over the identified asset.
Insolvency Advantage
Constructive trusts are especially important in insolvency.
Example
Suppose Daniel becomes bankrupt.
If beneficiaries possess only:
❌ personal remedies,
they become unsecured creditors.
However, if a constructive trust exists:
✅ the beneficiaries recover directly from the property itself.
This gives priority over ordinary creditors.
Knowing Receipt
A person who knowingly receives trust property may become:
✅ a constructive trustee.
This allows beneficiaries to claim proprietary remedies against the recipient.
Unconscionability
Modern courts often explain constructive trusts using the concept of:
unconscionability.
If it would be unconscionable for the legal owner to deny another person’s beneficial rights, equity may impose a constructive trust.
Key Case – Foskett v McKeown
In Foskett v McKeown, the House of Lords confirmed that beneficiaries could obtain proprietary rights through tracing where trust money was used to acquire substitute property.
The case strongly supports the proprietary nature of constructive trusts.
Key Case – Westdeutsche Landesbank
In Westdeutsche Landesbank Girozentrale v Islington LBC, Lord Browne-Wilkinson explained that constructive trusts arise where the conscience of the legal owner is affected.
This case emphasised:
Advantages of Constructive Trusts
Constructive trusts are powerful because they:
Disadvantages and Criticism
Constructive trusts have also been criticised because they may:
Key SQE Principles
A constructive trust:
✅ is imposed by operation of law.
It arises where:
✅ equity considers it unconscionable for the legal owner to deny another’s beneficial interest.
Constructive trusts provide:
✅ proprietary remedies,
not merely personal compensation.
Conclusion
A constructive trust is one of the most important proprietary remedies in equity and trust law. It arises by operation of law where equity considers it unconscionable for a person holding legal title to deny another person’s beneficial interest in the property. Constructive trusts are central to tracing, breach of trust, fiduciary wrongdoing, and family property disputes because they provide claimants with proprietary rights over assets themselves rather than merely personal compensation. Their powerful proprietary nature makes them especially important in cases involving insolvency, substitute assets, and increases in value.
Sources of Reference
Foskett v McKeown [2001] 1 AC 102 (HL).
Westdeutsche Landesbank Girozentrale v Islington LBC [1996] AC 669 (HL).
Chase Manhattan Bank NA v Israel-British Bank (London) Ltd [1981] Ch 105.
Paragon Finance plc v DB Thakerar & Co [1999] 1 All ER 400.
Alastair Hudson, Equity and Trusts (11th edn, Routledge 2022).
James Penner, The Law of Trusts (12th edn, OUP 2020).
Graham Virgo, The Principles of Equity and Trusts (5th edn, OUP 2024).
John McGhee (ed), Snell’s Equity (35th edn, Sweet & Maxwell 2024).
Introduction
A constructive trust is an equitable remedy and legal mechanism imposed by the court where it would be unconscionable for a person holding property to deny another person’s beneficial interest in that property.
Unlike an express trust, a constructive trust does not arise because parties intentionally created it. Instead, it is:
✅ imposed by operation of law.
The court imposes the trust in order to achieve fairness, prevent unjust enrichment, and respond to wrongdoing or unconscionable conduct.
Constructive trusts are extremely important in:
- equity and trusts;
- equitable tracing;
- breach of fiduciary duty;
- family property disputes;
- unjust enrichment;
- and proprietary remedies.
Definition
A constructive trust arises where:
equity considers it unconscionable for the legal owner of property to retain the beneficial interest exclusively.
The legal owner therefore becomes:
✅ a constructive trustee
holding the property for the benefit of another person.
Main Feature
A constructive trust is:
✅ proprietary.
This means the claimant obtains:
- rights over the property itself;
- not merely personal compensation.
Purpose of Constructive Trusts
Constructive trusts serve several functions:
- preventing unjust enrichment;
- protecting beneficiaries;
- enforcing fiduciary obligations;
- recognising beneficial ownership;
- and preserving proprietary rights.
Common Situations Where Constructive Trusts Arise
Constructive trusts commonly arise in:
- breach of trust;
- fiduciary wrongdoing;
- tracing claims;
- family homes disputes;
- secret profits;
- knowing receipt;
- and fraudulent conduct.
Example 1 – Breach of Trust
Assume Daniel is trustee of the Carter Family Trust.
Daniel wrongfully takes:
£200,000
from the trust and buys shares.
The beneficiaries may trace into the shares.
The court may declare that Daniel holds the shares on:
✅ constructive trust
for the beneficiaries.
Result
The beneficiaries acquire:
✅ proprietary rights over the shares.
They may therefore:
- claim ownership;
- force sale;
- or benefit from increases in value.
Example With Figures
Trust Money Taken
£200,000.
Shares Purchased
£200,000.
Shares Later Worth
£1 million.
Result
If a constructive trust is imposed:
✅ the beneficiaries may claim the shares themselves,
worth:
£1 million.
This is far more valuable than merely recovering:
❌ £200,000 compensation.
Constructive Trust vs Equitable Compensation
This distinction is very important.
Equitable Compensation
Creates:
✅ personal liability only.
The claimant merely becomes a creditor.
Constructive Trust
Creates:
✅ proprietary rights in the property itself.
This is usually stronger.
Example 2 – Secret Profit
Suppose a trustee uses trust information to purchase land personally and later sells it for profit.
Equity may impose a constructive trust over:
- the land;
or - the profit.
Example 3 – Family Home Cases
Constructive trusts also arise in domestic property disputes.
Suppose:
- Alice and Ben live together;
- the house is legally owned only by Ben;
- but Alice contributed significantly toward the purchase price or mortgage.
✅ constructive trust
for Alice.
Alice therefore acquires a beneficial interest in the property.
Institutional vs Remedial Constructive Trusts
This is a major academic distinction.
Institutional Constructive Trust
Arises automatically by operation of law once relevant events occur.
English law traditionally prefers this approach.
Example
A trustee misappropriates trust money to buy shares.
The constructive trust arises immediately when the wrongful acquisition occurs.
Remedial Constructive Trust
Arises only when imposed by the court as a discretionary remedy.
This approach is more common in:
- Australia;
- Canada;
- and some other jurisdictions.
Relationship With Tracing
Constructive trusts are closely connected with equitable tracing.
Tracing identifies:
✅ where the property has gone.
The constructive trust then gives:
✅ proprietary rights over the identified asset.
Insolvency Advantage
Constructive trusts are especially important in insolvency.
Example
Suppose Daniel becomes bankrupt.
If beneficiaries possess only:
❌ personal remedies,
they become unsecured creditors.
However, if a constructive trust exists:
✅ the beneficiaries recover directly from the property itself.
This gives priority over ordinary creditors.
Knowing Receipt
A person who knowingly receives trust property may become:
✅ a constructive trustee.
This allows beneficiaries to claim proprietary remedies against the recipient.
Unconscionability
Modern courts often explain constructive trusts using the concept of:
unconscionability.
If it would be unconscionable for the legal owner to deny another person’s beneficial rights, equity may impose a constructive trust.
Key Case – Foskett v McKeown
In Foskett v McKeown, the House of Lords confirmed that beneficiaries could obtain proprietary rights through tracing where trust money was used to acquire substitute property.
The case strongly supports the proprietary nature of constructive trusts.
Key Case – Westdeutsche Landesbank
In Westdeutsche Landesbank Girozentrale v Islington LBC, Lord Browne-Wilkinson explained that constructive trusts arise where the conscience of the legal owner is affected.
This case emphasised:
- conscience;
- equitable ownership;
- and proprietary obligations.
Advantages of Constructive Trusts
Constructive trusts are powerful because they:
- provide proprietary rights;
- survive insolvency;
- allow tracing into substitute assets;
- permit claims over increases in value;
- and provide priority over unsecured creditors.
Disadvantages and Criticism
Constructive trusts have also been criticised because they may:
- disrupt commercial certainty;
- prejudice unsecured creditors;
- create uncertainty;
- and rely heavily on vague concepts such as unconscionability.
Key SQE Principles
A constructive trust:
✅ is imposed by operation of law.
It arises where:
✅ equity considers it unconscionable for the legal owner to deny another’s beneficial interest.
Constructive trusts provide:
✅ proprietary remedies,
not merely personal compensation.
Conclusion
A constructive trust is one of the most important proprietary remedies in equity and trust law. It arises by operation of law where equity considers it unconscionable for a person holding legal title to deny another person’s beneficial interest in the property. Constructive trusts are central to tracing, breach of trust, fiduciary wrongdoing, and family property disputes because they provide claimants with proprietary rights over assets themselves rather than merely personal compensation. Their powerful proprietary nature makes them especially important in cases involving insolvency, substitute assets, and increases in value.
Sources of Reference
Foskett v McKeown [2001] 1 AC 102 (HL).
Westdeutsche Landesbank Girozentrale v Islington LBC [1996] AC 669 (HL).
Chase Manhattan Bank NA v Israel-British Bank (London) Ltd [1981] Ch 105.
Paragon Finance plc v DB Thakerar & Co [1999] 1 All ER 400.
Alastair Hudson, Equity and Trusts (11th edn, Routledge 2022).
James Penner, The Law of Trusts (12th edn, OUP 2020).
Graham Virgo, The Principles of Equity and Trusts (5th edn, OUP 2024).
John McGhee (ed), Snell’s Equity (35th edn, Sweet & Maxwell 2024).
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