The case of Hoyt’s Pty Ltd v Spencer [1919] concerns an issue regarding the enforceability of a termination clause in a written lease. Here is a summary:
| Court: High Court of Australia |
| Citation: [1919] HCA 64; 27 CLR 133 |
| Judges: Knox CJ, Isaacs J, Rich J |
| Decision Date: 24 November 1919 |
| Legal Focus: Contract law, collateral agreement, parol evidence rule, inconsistency, lease termination |
What happened in Hoyt’s Pty Ltd v Spencer?
Hoyt’s Pty Ltd took a four-year lease from Spencer for a theatre.
The lease included a clause allowing Spencer to terminate it anytime with 4 weeks’ notice.
Hoyt’s alleged that before or at the time of executing the lease, Spencer made a collateral promise: he would only exercise the termination clause if required by his own head lessors.
Spencer terminated the lease by giving 4 weeks’ notice, without any such request from his head lessors.
Hoyt’s sued for breach of this collateral agreement and claimed damages.
Issue
Was the collateral contract (limiting the right to terminate) enforceable?
High Court’s Judgment (Hoyt’s Pty Ltd v Spencer)
The High Court dismissed Hoyt’s appeal.
The alleged collateral agreement was inconsistent with the clear terms of the termination clause in the written lease.
A collateral contract is enforceable only if it is consistent with the main contract.
Since the lease gave Spencer an unqualified right to terminate with 4 weeks’ notice, a side agreement limiting that right could not stand.
You cannot contract to do something (sign a lease with an unconditional termination clause) and simultaneously hold a collateral agreement saying the right won’t be used unless a third party asks for it. They are legally inconsistent.
Therefore, the collateral agreement was not enforceable. The termination of the lease was valid.
Legal Significance
This case remains foundational in Australian contract law. It is frequently cited for the rule of consistency. Where a contract is intended to be a complete expression of the parties’ agreement, prior or contemporaneous terms cannot be enforced, especially if they are inconsistent.
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Ruchi is a legal research writer with an academic background in CA, MBA (Finance), and M.Com. She specializes in digesting and summarizing complex judicial decisions into clear and structured case notes for students and legal professionals.





