## Facts

- IDC Group Ltd v Clark concerned a dispute over the beneficial ownership of a commercial property.
- The claimant alleged a beneficial interest in the property based on financial contributions and a common intention between the parties.
- The legal owner denied the existence of such an equitable interest and asserted sole ownership.
- Both parties presented evidence, including financial records, correspondence, and witness testimony, regarding their intentions and financial contributions to the property.

## Issues

1. Whether the facts established a constructive trust in favour of the claimant over the property.
2. Whether a common intention regarding beneficial ownership existed between the parties.
3. Whether the legal owner's conscience was affected so as to make it unconscionable to deny the claimant’s interest.
4. Whether the claimant had suffered detriment by relying on the alleged common intention.
5. What evidentiary standards and types of evidence are required to prove the elements of a constructive trust.

## Decision

- The court concluded that a constructive trust could arise if a common intention as to ownership was established, the claimant had relied on that intention and suffered detriment, and it would be unconscionable for the legal owner to deny the claimed interest.
- The evidence, including significant financial contributions by the claimant, was sufficient to infer a shared intention concerning ownership of the property.
- The Court of Appeal held it would be unconscionable in light of the claimant's reliance and detriment for the legal owner to deny the beneficial interest.
- The requirement for clear and convincing evidence was affirmed, with emphasis on the importance of documentation, credible testimony, and overall consistency in the parties’ accounts.

## Legal Principles

- A constructive trust arises by operation of law to prevent unjust enrichment and is based on equitable principles, not requiring any formal trust agreement.
- The conscience of the legal owner is central; a constructive trust is imposed where it is unconscionable for the owner to deny the claimant’s interest.
- The establishment of such a trust typically requires: a common intention as to ownership, reliance on that intention by the claimant, and detriment suffered as a result.
- Evidentiary standards demand clear supporting evidence of intention and detriment; absent direct evidence, intention may be inferred from conduct and contributions.

## Conclusion

The Court of Appeal in IDC Group Ltd v Clark reaffirmed that constructive trusts depend upon the parties’ common intention, evidence of detrimental reliance, and the conscience of the legal owner, providing a structured framework for equitable allocation of property rights in the absence of formal agreements.

IDC Group Ltd v Clark [1992] 1 EGLR 187 (CA)