# Constructive trusts: imposed trusts and unconscionability

> **Key takeaway:** Imposed by law for unconscionability / established categories. Family home: common intention + detriment (Stack/Jones). Fiduciary bribes/commissions: constructive trust (FHR). Formalities: LPA 1925 s.53(2). Distinct from express and resulting trusts.

- **Jurisdiction:** England & Wales
- **Practice area:** Trusts And Chancery
- **Last reviewed:** 2026-08-04
- **Interactive page:** https://kttclegal.info/library/notes/TrustsAndChancery/constructive-trusts-overview
- **Keywords:** constructive trust, common intention, Stack v Dowden, Jones v Kernott, FHR European Ventures, unconscionability, section 53(2), fiduciary

## What is this about?

Constructive trusts are imposed by law, typically to prevent unconscionable assertion of legal title or to give effect to obligations arising from wrongdoing or common intention. They are distinct from express trusts (which require the three certainties and, where applicable, formalities) and from resulting trusts (which respond to incomplete disposal or purchase contributions).

## What is the core rule?

A constructive trust arises by operation of law where equity treats a legal owner (or other title-holder) as holding property on trust because it would be unconscionable for them to assert absolute beneficial ownership. Important families include: institutional constructive trusts responding to completed equitable obligations or wrongs (e.g. certain breach-of-fiduciary profit cases), common-intention constructive trusts of the family home (Stack v Dowden / Jones v Kernott), and remedial analyses in limited contexts. LPA 1925 s.53(2) exempts constructive trusts from express-trust writing formalities.

## What are the elements or test?

1. Identify the factual context: family home, fiduciary profit, vendor-purchaser, secret trust, knowing receipt / accessory liability (personal claims often sit alongside proprietary analysis)
2. For family-home CICT: common intention (express or inferred) that beneficial ownership differs from legal title, plus detrimental reliance (Stack / Jones methodology for quantification)
3. For fiduciary/wrong cases: has the defendant obtained property or profit in circumstances equity will not permit them to keep absolutely?
4. Is the claim proprietary (constructive trust / equitable interest) or personal (account, equitable compensation)?
5. Check formality: s.53(2) — constructive trusts need not satisfy s.53(1) writing rules for express trusts

## Which authorities matter?

- **Law of Property Act 1925, s.53(2)** — Writing requirements for express trusts do not affect the creation or operation of constructive trusts.
- **Stack v Dowden [2007] UKHL 17, [2007] 2 AC 432; Jones v Kernott [2011] UKSC 53, [2012] 1 AC 776** — Leading modern framework for common-intention constructive trusts of the domestic family home, especially jointly owned homes.
- **FHR European Ventures LLP v Cedar Capital Partners LLC [2014] UKSC 45, [2015] AC 250** — Supreme Court: bribes and secret commissions received by an agent are held on constructive trust for the principal (proprietary claim available).
- **Westdeutsche Landesbank Girozentrale v Islington LBC [1996] AC 669** — Important discussion of when conscience is affected and the institutional nature of many constructive trusts under English law.

## How does this apply in practice?

This is an overview map, not a full treatment of knowing receipt, dishonest assistance, or proprietary estoppel (separate doctrines). Always separate institutional constructive trusts from any argument for a purely remedial constructive trust — English law remains cautious about free-standing remedial discretion compared with some other jurisdictions.

## What are common pitfalls?

- Treating every unfair outcome as generating a constructive trust without an established category or unconscionability analysis
- Applying purchase-money resulting-trust arithmetic to a Stack/Jones family-home case
- Assuming constructive trusts always require writing like express trusts of land
- Collapsing personal fiduciary account claims into proprietary constructive-trust claims without checking FHR and tracing availability

## When would a practitioner use this?

Use in cohabitation property disputes, fiduciary profit cases, and when choosing between personal and proprietary remedies.

## Quick reference

Imposed by law for unconscionability / established categories. Family home: common intention + detriment (Stack/Jones). Fiduciary bribes/commissions: constructive trust (FHR). Formalities: LPA 1925 s.53(2). Distinct from express and resulting trusts.

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*Reference material from [KTTC Legal](https://kttclegal.info/), not legal advice. Work product supports instructing solicitors and barristers under their supervision. England & Wales.*