When a building project runs into problems, the cause is not always obvious. Sometimes the issue isn’t poor workmanship or substandard materials — it’s in the design itself. A design defect can set a project back months, drain budgets, and damage reputations.
For property owners, developers, contractors, and investors in Oregon and Washington, knowing how to identify, prevent, and address design defects is critical to protecting your investment.
What Is a Design Defect?
A design defect occurs when the plans, specifications, or blueprints for a project are flawed, leading to unsafe conditions, structural problems, or code violations. Unlike construction defects (which arise from how a project is built), design defects stem from the professional plans themselves.
Common examples include:
- Structural miscalculations that compromise stability
- Inadequate drainage designs causing water intrusion
- HVAC layouts that fail to meet code or performance needs
- Building layouts that do not comply with accessibility requirements
Because these flaws originate before construction even begins, they can affect every stage of the project and be costly to correct.
Why Design Defects Are High-Risk
The stakes are high when a defect is baked into the blueprint. Consequences can include:
- Significant repair costs — sometimes requiring partial demolition
- Project delays that affect financing, leases, and occupancy deadlines
- Loss of property value if the defect impacts safety or usability
- Legal exposure for owners, developers, architects, and contractors
In high-value projects, a single design oversight can result in millions in damages — not to mention reputational harm that can impact future opportunities.
The Legal Landscape in Oregon & Washington
Each state has its own rules for pursuing design defect claims. In Oregon and Washington, time limits apply both from when the defect is discovered (statutes of limitation) and from when the project was substantially completed (statutes of repose).
Because these deadlines can run out quickly — sometimes before a problem is even discovered — it’s important to act promptly if you suspect a defect. Knowing your rights and obligations early can make the difference between a contained issue and a costly dispute.
Prevention Is the Best Protection
The most effective way to handle a design defect is to avoid it in the first place. While not every problem can be anticipated, experienced legal counsel can help:
- Review and negotiate contracts with architects, engineers, and contractors
- Ensure scope, performance standards, and liability provisions are clearly defined
- Coordinate with technical experts to identify potential design concerns before construction
Proactive legal involvement can reduce the risk of disputes and provide stronger remedies if issues arise.
What to Do if You Suspect a Design Defect
If you believe a defect may exist in your project:
- Document the issue thoroughly with photographs, reports, and communications.
- Pause or limit further work if it could worsen the problem.
- Consult an attorney before making statements to designers, contractors, or insurers that could affect your rights.
At Chenoweth Law Group, we work with clients to investigate potential claims, collaborate with technical experts, and pursue efficient, strategic resolutions — whether through negotiation, arbitration, or litigation.
Protect Your Investment
Your project represents a significant commitment of time, capital, and reputation. A design defect should not be allowed to erode that investment.
If you are facing a potential design defect issue in Oregon or Washington, our team can help you take decisive action to protect your bottom line.
Contact Chenoweth Law Group LLC today to discuss your options.

