How Contractors Take Advantage of Unprepared Owners (And How to Prevent It)

Most construction projects do not go over budget because of one major mistake.

They go over budget because of a series of smaller decisions—many of which occur before construction even begins.

In Portland’s current construction environment, one of the most common risks is not contractor intent, but owner preparedness.

When a project is not clearly defined, coordinated, and documented, it creates conditions where costs can increase quickly—and often legitimately.

It’s Not Always Intentional

It’s important to be clear:

Most contractors are not actively trying to take advantage of owners.

However, construction contracts are structured in a way that:

• Rewards clearly defined scope

• Shifts risk to the owner when scope is unclear

• Allows additional costs to be added through change orders

When a project is not well-defined, the contractor is left to interpret intent—and that interpretation often results in added cost.

Where Projects Start to Break Down

The most common issues begin before construction starts.

1. Incomplete or Vague Scope

If drawings or specifications are not fully developed, important elements are left undefined.

This often leads to:

• “That wasn’t included” conversations

• Additional pricing during construction

• Gaps between owner expectations and contractor assumptions

2. Over-Reliance on Verbal Agreements

Discussions during design or bidding are not always reflected in contract documents.

If something is not clearly documented:

• It may not be included in the base scope

• It may reappear later as a change order

3. Misalignment Between Drawings and Pricing

Contractors price what is shown—not what is intended.

If documents are incomplete or inconsistent:

• Pricing may exclude key components

• Corrections during construction become added cost

4. Lack of Defined Standards

Without clearly defined expectations for materials, finishes, or systems:

• Contractors may select lower-cost or minimally compliant options

• Upgrades become owner-driven changes

• Critical elements such as fire-resistance-rated assemblies or UL-listed systems may not be properly defined

In many cases, drawings do not clearly specify required code-compliant assemblies, such as rated wall or floor/ceiling systems.

When this occurs:

• Contractors may default to assemblies that are easier or less expensive to construct

• Required ratings or configurations may not align with code intent or approved listings

• Corrections during inspection can lead to rework, delays, and added cost

Clearly defining these systems up front helps ensure that what is built is both compliant and aligned with project expectations.

The Role of Change Orders

Change orders are not inherently a problem—they are a normal part of construction.

The issue is volume and cause.

When a project is not well-prepared, change orders often result from:

• Missing information in the documents

• Scope gaps identified during construction

• Code or permitting requirements discovered late

Each individual change may seem reasonable. Collectively, they can add tens of thousands of dollars or more.

Why This Happens More Often Now

Permitting and construction have changed significantly over the past 20–25 years.

Projects are now:

• Reviewed more rigorously

• Coordinated across multiple disciplines

• Evaluated against stricter code requirements

At the same time, construction contracts have become more structured around defined scope and documented responsibility.

This creates a gap:

If the project is not fully defined before construction, the risk does not disappear—it shifts.

And it typically shifts to the owner.

How to Prevent These Issues

Avoiding these problems is not about controlling the contractor—it is about controlling the clarity of the project.

This includes:

• Developing complete and coordinated drawings before pricing

• Clearly defining scope, materials, and expectations

• Aligning all documentation with how the project will be built

• Understanding code and permitting requirements early

When these elements are in place, the project becomes:

• Easier to price accurately

• Easier to build

• Less prone to unexpected cost increases

The Role of an Owner’s Representative

An owner’s representative helps ensure the project is aligned across design, construction, and cost, while consistently protecting the owner’s interests.

This role operates between the architect and contractor—representing:

• The architect’s design intent

• The contractor’s means and methods and constructability considerations

• The owner’s financial and long-term investment goals

This includes:

• Verifying that drawings and specifications clearly reflect the intended design and level of quality

• Evaluating constructability to ensure the project can be built efficiently and realistically

• Identifying gaps or conflicts before they result in cost or schedule impacts

• Coordinating between design and construction teams to maintain alignment throughout the project

• Monitoring changes to ensure they are justified, necessary, and cost-effective

The goal is not to eliminate change orders entirely, but to ensure the project is delivered in a way that maintains design integrity, construction quality, and cost control—without unnecessary compromise in any one area.

About JR DBA

JR DBA provides residential, commercial architecture and owner representation services in the Portland region.

With a focus on project clarity, strategy, and construction coordination, JR DBA helps owners move into construction with a well-defined project—reducing risk and improving cost predictability.