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Extracted Content

CxP team members review the design documents than the team witnessing testing.

Scope of fundamental commissioning The prerequisite stipulates that projects conform with ASHRAE Standard 90.1 requirements for all referenced systems and additional provisions as outlined in the LEED ID+C: Commercial Interiors rating system.

Systems requiring commissioning. At a minimum, commissioned systems must include all energy-using systems within the project scope of work that are referenced in ASHRAE 90.1, Sections 5–10, including the building envelope, HVAC, SWH, power, lighting, on-site renewable energy, energy monitoring systems, refrigeration equipment, energy storage systems, load management systems, and other energyusing systems.

Owner’s Project Requirements (OPR) The OPR documents the functional requirements of the building. It also details the expectations of the project’s use and operation. The OPR includes objectives for the project which verify that all stated goals become integral with the project design, construction, and operation.

The owner or a design professional can develop the OPR. However, the owner must provide input during the development. This ensures that the OPR captures critical elements, like sustainability goals and targets for the project. If a CxP’s engagement begins prior to the OPR development, the CxP may provide input on the initial development efforts. The OPR is a living document, which requires ongoing updates throughout the design phases.

Additional considerations The owner plays a critical role in developing and updating the OPR. The OPR establishes a clear vision for the project, identifying expected outcomes and goals for sustainable project development. As the project progresses, decisions made for the project should align with the OPR. It is important that the owner remain a key stakeholder, and ultimate approver of the final version of the document.

Basis of design (BOD) The project’s design professionals typically create the BOD. The BOD explains how the design and construction team will execute the OPR. Processes and assumptions made early in the design phases to achieve the OPR’s intent should be included in the BOD, along with relevant project information. A BOD addresses performance criteria, general project characteristics (envelope, HVAC, water), and governing codes and standards, at minimum.

U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 120