Whether a lender who discharges an existing secured debt is entitled to subrogation to that security when its own security fails.
Held
The House of Lords allowed subrogation, holding that it is a restitutionary remedy to prevent unjust enrichment.
Exam use
In an exam, introduce Banque Financière de la Cité v. Parc (Battersea) Ltd with the citation only if you can remember it accurately; otherwise use the case name and court, then focus on the rule and application. A strong answer should say what Banque Financière de la Cité v. Parc (Battersea) Ltd decided, why the facts mattered, and how the authority helps resolve the new facts. Avoid treating the case as a decorative reference. Use it to prove a doctrinal step in Subrogation, unjust enrichment, loans, then move quickly to analysis.
Summary
Banque Financière de la Cité v. Parc (Battersea) Ltd is included in the Restitution Law case database because it gives students a concrete authority for Subrogation, unjust enrichment, loans. The reported citation is [1999] 1 AC 221, and the decision is associated with House of Lords. In revision, treat the case as a way to connect the legal issue to a real dispute rather than as an abstract rule. The key exam move is to state the holding, identify the fact pattern that made the rule matter, and then decide whether a new problem question should apply, distinguish, or limit the authority.
Facts
The material factual signal for Banque Financière de la Cité v. Parc (Battersea) Ltd is: A bank advanced money to a company to pay off a loan to another creditor; the bank mistakenly believed it would obtain security; it sought subrogation to the discharged creditor's security. Students should read the linked source and turn that signal into a short fact table: parties, transaction or public-law setting, procedural posture, conduct in dispute, and the fact the court treated as decisive. This prevents vague case-dropping. In an answer on Restitution Law, use the facts to explain why Subrogation, unjust enrichment, loans was live, then compare the problem facts against the facts in the case before stating any conclusion.
Procedural History
Banque Financière de la Cité v. Parc (Battersea) Ltd is reported as a decision of House of Lords. The procedural route should be checked against the linked source before formal citation. For study notes, record whether the decision was an appeal, judicial review, trial judgment, tribunal ruling, or constitutional/application proceeding, because that posture affects how confidently the rule can be used.
Issue
Whether a lender who discharges an existing secured debt is entitled to subrogation to that security when its own security fails.
Held
The House of Lords allowed subrogation, holding that it is a restitutionary remedy to prevent unjust enrichment.
Ratio Decidendi
Subrogation is available in equity to prevent unjust enrichment where a person pays off a secured debt and reasonably expects to obtain security or benefit.
Obiter Dicta
Check the linked source for concurring, dissenting, or obiter observations before quoting this case. If the case includes non-binding reasoning, use it as persuasive support rather than as the core rule.
Reasoning
For reasoning, start with the ratio: Subrogation is available in equity to prevent unjust enrichment where a person pays off a secured debt and reasonably expects to obtain security or benefit. Then read the source and separate three things: the legal test, the facts used to apply that test, and any policy or institutional reason the court gave. This structure makes Banque Financière de la Cité v. Parc (Battersea) Ltd easier to use in essays and problem questions. In Restitution Law, the case should be compared with related authorities on Subrogation, unjust enrichment, loans; if the jurisdiction, statute, or procedural posture differs from the exam problem, explain that limit explicitly instead of treating the authority as automatic.
Plain-English Explanation
Plainly, Banque Financière de la Cité v. Parc (Battersea) Ltd is a case to use when a Restitution Law answer needs an authority on Subrogation, unjust enrichment, loans. Do not just list it. Explain the problem the court had to solve, the rule or holding it used, and the fact that made the result persuasive. That turns the case from a memorised name into evidence for your legal analysis.
Essay-Ready Explanation Generator
Version 1 of 4
Reference to Banque Financière de la Cité v. Parc (Battersea) Ltd ([1999] 1 AC 221) strengthens a Restitution Law answer because the case reflects the principle that Subrogation is available in equity to prevent unjust enrichment where a person pays off a secured debt and reasonably expects to obtain security or benefit. Applied to a problem question, the case should be used after identifying the issue as Whether a lender who discharges an existing secured debt is entitled to subrogation to that security when its own security fails. The stronger essay move is to connect the material facts to the court's holding, then explain whether the present facts support the same conclusion or justify distinguishing the authority.
Underlying Concepts
restitution-law
Restitution Law
Subrogation, unjust enrichment, loans
case authority
exam application
Key Passages
Verify exact wording in the linked source before quoting.
Significance
Banque Financière de la Cité v. Parc (Battersea) Ltd is significant for LawConquer users because it supplies a named authority for Subrogation, unjust enrichment, loans in Restitution Law. The case can anchor a paragraph, support a rule statement, or provide a contrast point when another authority points the other way. Its practical value is strongest when the student links the holding to the material facts and then explains whether the present problem is analogous or distinguishable.
Related Cases
No related cases listed.
Exam Tips
In an exam, introduce Banque Financière de la Cité v. Parc (Battersea) Ltd with the citation only if you can remember it accurately; otherwise use the case name and court, then focus on the rule and application. A strong answer should say what Banque Financière de la Cité v. Parc (Battersea) Ltd decided, why the facts mattered, and how the authority helps resolve the new facts. Avoid treating the case as a decorative reference. Use it to prove a doctrinal step in Subrogation, unjust enrichment, loans, then move quickly to analysis.
Revision Checklist
Name the issue before discussing facts so the marker sees the legal question immediately.
State the holding in one sentence, then use the ratio to explain why the court reached that result.
Use the citation and jurisdiction to show why this authority matters for the problem you are answering.
Pair this case with one supporting or contrasting authority if the question tests limits, policy, or exceptions.
Problem Question Use
Use Banque Financière de la Cité v. Parc (Battersea) Ltd in a problem question by matching the factual trigger to the new scenario. If the fact pattern aligns with A bank advanced money to a company to pay off a loan to another creditor; the bank mistakenly believed it would obtain security; it sought subrogation to the discharged creditor's security., apply the ratio and explain the likely result. If a crucial fact, jurisdiction, statute, or procedural posture differs, distinguish the case and use it as a boundary rather than a controlling answer.