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Bank of Ireland Mortgage Bank v Murray & anor (Approved)
Factual and Procedural Background
Company A advanced two housing loans (in 2003 and 2007) on the belief that the Appellant and his spouse (the Defendant) were joint borrowers and that the loans would be secured on their family home. In fact, the Appellant never applied for, signed, or knew of either loan; his purported signatures were supplied without his knowledge. The High Court found that the loan proceeds were used for the Appellant’s personal benefit – including discharging tax liabilities, purchasing property, and funding family expenses – and entered judgment for Company A in unjust enrichment. The Court of Appeal affirmed. In the Supreme Court, the Court divided, but the majority (led by Judge Dunne and joined by Judge Collins in this concurring judgment) upheld the lower courts’ orders, dismissing the Appellant’s appeal.
Legal Issues Presented
- Whether Company A established the three elements of unjust enrichment against the Appellant: (a) enrichment, (b) at the expense of Company A, and (c) the presence of an “unjust factor” (mistake).
- Whether any recognised defence—illegality, public-policy “disqualifying circumstance,” or change of position—barred restitution.
- Whether alleged procedural or regulatory shortcomings by Company A, or public-policy aims of the Consumer Credit Act 1995, required the court to refuse relief.
Arguments of the Parties
The opinion does not contain a detailed account of the parties' legal arguments.
Table of Precedents Cited
| Precedent | Rule or Principle Cited For | Application by the Court |
|---|---|---|
| Corporation of Dublin v Building and Allied Trade Union [1996] 1 IR 468 | Clarified core elements of unjust enrichment and warned against “palm-tree justice.” | Used to confirm that enrichment and expense were undisputed and to emphasise doctrinal rigour. |
| Dargamo Holdings Ltd v Avonwick Holdings Ltd [2021] EWCA Civ 1149; [2022] 1 All ER (Comm) 1244 | Unjust enrichment is grounded on recognised unjust factors, not general fairness. | Cited to underscore that both claims and defences must rest on ascertainable legal rules. |
| Investment Trust Companies v Revenue and Customs Commissioners [2017] UKSC 29; [2018] AC 275 | Court must avoid ad-hoc fairness and apply consistent legal principles. | Relied upon when rejecting a discretionary refusal of restitution. |
| Lipkin Gorman v Karpnale Ltd [1991] 2 AC 548 | Restitution is a matter of right; courts may deny recovery only on established legal grounds. | Quoted to assign the burden of proving a recognised defence to the Appellant. |
| Patel v Mirza [2016] UKSC 42; [2017] AC 467 | Sets proportionality test for illegality defences. | Referenced; court found proportionality analysis unnecessary because no illegality arose. |
| Carey v Ryan Ltd [1982] IR 179 | Illustrates recovery where payer acted in good faith. | Distinguished; court held Company A similarly acted in good faith. |
| Haugesund Kommune v Depfa ACS Bank [2010] EWCA Civ 579; [2012] QB 549 | Statutory policy may bar restitution if it would “stultify” legislation. | Cited as background when assessing the Consumer Credit Act 1995. |
| Wilson v First County Trust Ltd (No 2) [2003] UKHL 40; [2004] 1 AC 816 | Where statute renders a credit agreement unenforceable, restitution may also be barred. | Contrasted; Part IX of the 1995 Act contains no comparable bar. |
| Kelly v Solari (1841) 9 M & W 54 | Negligence by the payer does not preclude recovery for mistake. | Applied to reject the notion that Company A’s internal lapses defeat its claim. |
| Barclays Bank v WJ Simms Son & Cooke [1980] 1 QB 677 | Affirmed Kelly v Solari principle on negligence. | Reinforced absence of a negligence bar. |
| Scottish Equitable plc v Derby [2001] EWCA Civ 369; [2001] 3 All ER 818 | Change-of-position defence requires extraordinary, causally linked detriment. | Used to show Appellant’s ordinary spending did not satisfy the defence. |
| Dextra Bank & Trust Co Ltd v Bank of Jamaica [2002] 1 All ER (Comm) 193 | Relative fault irrelevant to change-of-position; extraordinary expenditure required. | Cited in dismissing the Appellant’s asserted defence. |
| Murphy v Attorney General [1982] IR 241 | Public-policy limits on restitution of unlawfully collected taxes. | Distinguished as a special, non-analogous case. |
| Primlake Ltd v Matthews Associates [2006] EWHC 1227 (Ch); [2007] 1 BCLC 666 | Discussed by Appellant; relevance rejected. | Held inapplicable to present facts. |
| Stanbridge v Advanced Industrial Technology Corp Ltd [2012] EWHC 1009 (Ch) | Another authority relied on by Appellant. | Likewise found misplaced. |
Court's Reasoning and Analysis
Judge Collins agreed with Judge Dunne that Company A had proven the three elements of unjust enrichment: (1) the Appellant undeniably received and used the loan monies; (2) the enrichment was directly at Company A’s expense; and (3) the enrichment was “unjust” because Company A advanced the 2007 loan under a fundamental mistake of fact—induced by forged documentation—that the Appellant was a co-borrower and that the loan was secured on the family home.
The court analysed three proposed defences:
- Public-Policy / Consumer Credit Act 1995. The Appellant contended restitution would undermine statutory consumer protections. The court distinguished Part IX housing loans from Part III credit agreements: the statute contains no provision making such loans unenforceable, and allowing restitution would not “stultify” legislative purpose. No illegality comparable to Wilson v First County Trust arose.
- Change of Position. The Appellant’s use of the funds over several years was insufficient; he failed to prove extraordinary, irreversible detriment causally linked to the mistaken payment. Ordinary expenditure, repayment of existing debts, or acquisition of assets did not satisfy the defence under authorities such as Scottish Equitable and Dextra Bank.
Because no recognised defence was established, and negligence does not defeat a mistaken-payment claim, Company A’s right to restitution stood.
Holding and Implications
HOLDING: Appeal DISMISSED; the orders of the Court of Appeal directing the Appellant to make restitution to Company A are affirmed.
Implications: The decision confirms that Irish courts will grant restitution for mistaken payments where the classic unjust-enrichment elements are met, and will withhold relief only upon clearly established, principled defences. Negligent internal procedures by a lender, absent bad faith, do not bar recovery; public-policy objections grounded in consumer-credit legislation must closely align with statutory text. The judgment does not create new precedent but reinforces existing doctrine on unjust enrichment, mistake, and the limited scope of available defences.
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