## Facts

- Hutton, a tenant farmer, worked Warren’s land and, upon receiving notice to quit, spent his own resources (labor, seed, manure) to work the land in the final period of his tenancy.
- Hutton sought compensation for these costs on leaving, asserting it was customary for outgoing tenants to be reimbursed by the landlord for such expenses.
- Warren, the landlord, refused payment, arguing the lease was silent on any such obligation.
- The dispute centered around whether the contract of lease could be supplemented by local agricultural custom when it did not explicitly provide for the issue in question.

## Issues

1. Whether a widely accepted agricultural custom requiring compensation for outgoing tenants can be implied into a lease agreement that does not expressly provide for such payments.
2. Whether evidence of custom may be admitted notwithstanding the parol evidence rule, which generally restricts the admission of evidence to vary or add to a written contract.
3. Whether the contract's silence on the matter precludes the incorporation of customary practices as implied terms.

## Decision

- The court found in favor of Hutton, ruling that the established agricultural custom should be implied into the lease as a term.
- Evidence of longstanding custom was held admissible, enabling the contract to be interpreted and supplemented in light of prevailing industry usage.
- The landlord, Warren, was required to compensate the outgoing tenant for the value of the work on the land and the resources expended, despite the absence of an express contractual provision.

## Legal Principles

- Terms may be implied into contracts based on well-established custom or usage within an industry, even when not expressly written.
- The parol evidence rule does not exclude evidence of custom where it is necessary to interpret or complete a contract that is otherwise silent on an essential matter.
- Contracts should be interpreted within their commercial context and the parties’ reasonable intentions, with established trade practices providing necessary context.
- Customary implied terms cannot be inconsistent with any express term of the contract.

## Conclusion

Hutton v Warren (1836) established that customary practices may be incorporated as implied terms in contracts when the contract is silent on an issue but industry practice is clear. This approach recognizes commercial realities and allows courts to ensure fairness by supplementing contracts with established customs, even in the face of the parol evidence rule, provided no express terms are contradicted.

Hutton v Warren (1836) 1 M & W 466