Sustainability · Defined
Owner’s project requirements (OPR)
A documented statement of the owner’s objectives and functional expectations used to guide design and commissioning.
Why it matters
Requirements should be specific enough to evaluate. A broad aspiration such as efficient operation is less testable than a defined performance or operating requirement.
In practice
A project example
The owner identifies required operating hours and environmental conditions before controls are designed.
Technical references
General educational guidance from KOW Building Consultants. Examples are illustrative, not project records. The applicable contract, standard, program, and jurisdiction control the requirements for a specific assignment.