Owner’s Project Requirements: How Commercial Owners Define What a Project Needs to Accomplish

I have seen projects that were completed successfully on paper but still left the owner asking why the building didn't work the way they expected.

I've also been on the other side of that question. As an owner, you look beyond whether the work was completed. You want to know whether the building does what you needed it to do.

That is where the Owner’s Project Requirements, or OPR, matter.

I use the OPR to help define those expectations before design and construction decisions begin shaping the finished building.

What Are Owner’s Project Requirements?

I think of Owner’s Project Requirements as a way to document the owner’s goals, performance expectations, operating needs, and priorities.

I like to use a restaurant analogy. Ordering a steak is not enough if nobody asks how you want it prepared. You might get a perfectly good steak, but it still may not be what you expected.

Buildings are obviously more complicated than ordering dinner, but the communication problem is similar.

The OPR can address things like temperature, humidity, building pressure, controls, maintenance, training, documentation, and water intrusion.

For architects and engineers, that information provides better context for design decisions.

Why Do Owner’s Project Requirements Matter?

I use the OPR to connect individual project decisions to what the owner actually needs the building to do.

I've seen projects where new HVAC equipment was installed, and everyone could point to the new equipment as a completed project item. But the owner was still dealing with problems involving controls, moisture, piping, or building operation.

That experience is a good reminder that there is a difference between asking, “Did we install the equipment?” and asking, “Did the project accomplish what the owner needed?”

For commercial building owners, that difference can affect operations long after construction is complete.

Why Do Owner’s Project Requirements Matter?

I use the OPR to connect individual project decisions to what the owner actually needs the building to do.

I've seen projects where new HVAC equipment was installed, and everyone could point to the new equipment as a completed project item. But the owner was still dealing with problems involving controls, moisture, piping, or building operation.

That experience is a good reminder that there is a difference between asking, “Did we install the equipment?” and asking, “Did the project accomplish what the owner needed?”

For commercial building owners, that difference can affect operations long after construction is complete.

What Should Owners Include in an OPR?

I encourage owners to document the problems they do not want to repeat, along with the performance, training, and operating expectations they want the project team to understand.

Useful questions include:

• Are some spaces consistently uncomfortable?
• Has the building experienced moisture problems?
• Do staff struggle with controls?
• What training will facility staff need?
• What documentation should be available at turnover?

Those answers give architects and engineers better design context and give contractors a clearer understanding of project expectations.

What Role Does the OPR Play in Building Commissioning?

I use the OPR as the foundation for commissioning because it defines what the owner expects the building and its systems to accomplish.

Commissioning uses those requirements as a reference throughout the project. Design reviews, system testing, training, and documentation can all be evaluated against the expectations established in the OPR.

For example, if the OPR identifies indoor humidity, building pressure, or staff training as important, those expectations give the commissioning process specific criteria to address.

Without a clear OPR, the team may be able to determine that equipment operates. Still, it is harder to evaluate whether the completed systems respond to what the owner actually needed from the project.

Why Should Facility Staff Be Involved?

I want facility staff involved because they are the people who have to live with the building after the project team leaves.

They often know where problems repeat, which controls are difficult to use, and which systems create ongoing maintenance issues.

That firsthand experience is easy to overlook during design, but it can be some of the most useful information the project team receives.

That experience can help shape better project requirements early and make training and turnover more useful later.

When Should the OPR Be Developed?

I prefer to develop the OPR as early as practical, before major design decisions become difficult or expensive to change.

Early discussion gives the owner time to explain priorities, previous problems, training needs, and performance goals before assumptions become drawings, specifications, or construction work.

How Can Wynn L. White Consulting Engineers Help?

At Wynn L. White Consulting Engineers, we help commercial and institutional owners clarify project goals, evaluate building conditions, and provide technical information that supports project decisions.

We also work with architects and engineers, contractors, and commercial building owners when building-performance or field-condition questions require a clearer understanding of what is happening and what information is needed next.

What Is the Bottom Line on Owner’s Project Requirements?

The OPR is a practical way to define what the project needs to accomplish before those expectations become assumptions.



Write the expectations down, involve the people who operate the building, and use the OPR as a reference as the project moves through design, commissioning, construction, and turnover.