The Power of "Part Performance" – Lessons from Himpel v. Lindgren


Imagine this: You’ve spent months building a fence, planting crops, and caring for livestock on a rental property—only to be evicted after the landlord claims the lease never existed because it wasn’t written down.

In Himpel v. Lindgren (1930), a landmark Washington case, the court refused to let a landlord walk away from a lease simply because it lacked a signed agreement. Instead, the court recognized part performance—a legal principle that protects tenants who make substantial, good-faith improvements to property.

Section 1: The Legal Principle of Part Performance

In Himpel v. Lindgren, the Washington Supreme Court addressed a conflict with the Statute of Frauds (which generally requires real estate contracts to be in writing). The court established that a lease does not always need to be signed to be enforceable if a tenant has made substantial, good-faith improvements.

This doctrine, known as part performance, recognizes that equity must prevail when one party invests significant time and money. In Himpel, because the tenant had built a fence and planted crops—actions demonstrating a clear intention to use the land—the landlord could not unilaterally evict them.

Key Takeaway: Under Washington law, three factors typically determine part performance:

  1. Delivery and assumption of actual and exclusive possession.
  2. Payment or tender of consideration (rent).
  3. Making of permanent and valuable improvements.

Section 2: Good Faith and Equitable Considerations

Beyond formal requirements, Washington courts emphasize equity. This serves as a safeguard against "unjust enrichment," where a landlord might try to kick a tenant out just to keep the expensive improvements the tenant paid for.

Real-World Application

  • Agricultural/Commercial: If a tenant installs irrigation systems or structural upgrades with the landlord's knowledge, the court may find a binding long-term lease exists even if the paperwork was never finalized.
  • The Modern Caveat: In modern residential settings, the Washington Residential Landlord-Tenant Act (RLTA) adds complexity. Most residential tenancies without a written lease are considered "month-to-month." However, the principle of equity still prevents a landlord from acting in "bad faith" to seize a tenant's significant capital investments.

Section 3: The Impact of Tenant Investment on Property Value

A tenant’s long-term commitment often results in significant financial investment. When a tenant repairs structural elements or upgrades a property's utility, they aren't just "living there"—they are increasing the property’s market value.

  • Value Creation: A commercial tenant spending $20,000 on a build-out increases the building's resale value.
  • Stability: Long-term occupancy reduces "vacancy risk" for the landlord.
  • Legal Protection: Washington courts increasingly recognize that landlords cannot reap the "windfall" of these improvements by citing a lack of a written signature. If a tenant’s operational success is tied to the location, the court may grant an equitable lease.

Conclusion: Balancing Law and Fairness

Tenant investment plays a vital role in fostering stable real estate markets. Whether through agricultural labor or commercial renovations, tenants bring tangible value that benefits the broader community.

While the Statute of Frauds exists to prevent fraud, the Part Performance Doctrine exists to prevent the law itself from becoming an instrument of unfairness. To promote stable housing and business markets, Washington continues to balance these procedural formalities with equitable outcomes.


As always speak to an attorney first for advice on topics like this. Thank you.