Plante v. Jacobs

10 Wis.2d 567, 103 N.W.2d 296 (1960)

Quick Summary

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Eugene Plante (plaintiff) built a house for Frank and Carol Jacobs (defendants), who stopped payments over concerns with the construction. Plante filed a lien for the unpaid balance. The dispute centered around whether Plante’s work constituted substantial performance and how to assess damages for construction defects.

The Supreme Court of Wisconsin found that Plante had substantially performed his contractual obligations. The court determined that damages should be calculated based on repair costs for minor issues and that no damages were owed for major issues like misplacement of walls if they did not affect property value.

Facts of the Case

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Eugene Plante (plaintiff) agreed to build a house for Frank and Carol Jacobs (defendants) for a total cost of $26,765. As the house was being built, the Jacobs paid $20,000 but stopped further payments over concerns about the construction quality and perceived flaws. Plante stopped the work and sought to enforce a lien on the property to recover the remaining contract balance.

The Jacobs countered, alleging that the construction had significant defects and was not substantially complete, estimating the cost of repairs and completion at 25 to 30 % of the contract price.

Specific complaints included cracks in the plaster, incorrect construction of a patio wall and floor, and a living room built one foot off from where it should have been.

Plante filed a lien, leading to legal action to resolve the dispute over what constituted substantial performance under the contract.

Procedural Posture and History

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  1. Plante filed a lien on the defendants’ property for unpaid balance.
  2. The trial court found that Plante had substantially performed the contract and awarded damages based on the cost of repair.
  3. The defendants, Frank and Carol Jacobs, appealed the trial court’s decision to the Supreme Court of Wisconsin.

I.R.A.C. Format


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Whether Plante substantially performed under the contract and what constitutes the appropriate measure of damages for incomplete or defective work.

Rule of Law

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Substantial performance in construction contracts does not require flawless adherence to specifications; rather, it must meet the essential purpose of the contract. The measure of damages for incomplete or faulty work can be determined either by the cost to repair or by the diminished value of the work performed.

Reasoning and Analysis

Reasoning Icon

The court examined whether Plante’s work met the core requirements of the contract, despite some deviations from the specifications. While acknowledging various construction issues, the justices considered expert testimony that suggested the market value of the house was unaffected by these discrepancies.

They concluded that Plante had indeed substantially performed his obligations under the contract.

The court then addressed how to appropriately quantify damages. It differentiated between minor defects, which could be rectified without significant reconstruction, and more substantial errors, like the misplacement of an entire wall.

Ultimately, they agreed that minor defects should be calculated based on repair costs, but significant deviations like the mispositioned wall should be assessed on how they affect the property’s value.


Conclusion Icon

The Supreme Court of Wisconsin affirmed the trial court’s judgment that Plante had substantially performed and upheld the awarded damages based on repair costs for minor defects and no damages for the misplacement of the wall as it did not affect market value.

Key Takeaways

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  1. Substantial performance in construction is met when the work achieves the essential purpose of the contract despite minor deviations.
  2. Damages for construction defects can be measured by either repair costs or diminished value, depending on whether correcting them would cause significant economic waste.
  3. The court will not award damages for construction errors that do not affect market value or utility of the property.

Relevant FAQs of this case

What factors determine 'substantial performance' in a contractual agreement?

Factors that determine substantial performance include the completion of primary contract objectives, fulfillment of essential purposes, and the achievement of the contract’s core functionality despite minor deviations. Not all defects will negate substantial performance if the overall intent of the agreement is met.

  • For example: If a company is contracted to install a new roof on a house and completes the installation, but the color of the shingles is slightly off from what was specified, this would typically be regarded as substantial performance if the new roof is otherwise functional and does not leak.

How are damages calculated when a contractor fails to fully comply with a construction contract?

Damages in such scenarios are generally calculated based on either the cost to repair the defects to meet contract specifications or the diminished value to the property due to those defects. The selection between these measures often depends on the nature and severity of the non-compliance.

  • For example: If an event venue’s renovation includes installing soundproof windows but instead regular windows were installed, damages could be awarded based on the cost difference between regular and soundproof windows, or by assessing any reduction in rental income due to noise complaints.

In what circumstances would courts deny damages for breaches in construction contracts?

Courts may deny damages if the breach does not materially affect the value or use of the property. This holds especially true when correcting the defect would result in economic waste without providing tangible or practical benefits.

  • For example: If a contractor builds a backyard deck using screws instead of nails contrary to contract terms, but the deck’s durability and appearance are unaffected, a court may view this deviation as immaterial and refuse to award damages for reconstruction.
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