855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 243

Extracted Content

The owner or a design professional can develop the OPR. However, the owner must provide input during the development, ensuring that the OPR captures the project’s critical elements, like sustainability goals and targets. If a CxP’s engagement begins before the OPR development, the CxP may provide input on the initial development efforts. The OPR is a living document requiring 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 building development. As the project progresses, decisions should align with the OPR. The owner must remain a key stakeholder and ultimate approver of the document’s final version.

Basis of Design (BOD)

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

The BOD is a living document requiring updates throughout the design and construction phases.

Cx Plan

The Cx Plan, developed by the CxP, outlines the goals and objectives, general project information, and all systems included in the commissioning scope of work. The plan details the complete Cx process, including roles and responsibilities, key tasks and milestones performed by each responsible party, and functional performance test (FPT) or verification procedures for all systems verified, commissioned, or tested.

Design Reviews

Design reviews by the CxP are critical elements of the commissioning process. Reviews support the energy efficiency goals of ASHRAE Standard 90.1 by verifying that the design meets the Standard’s requirements. Early reviews allow teams to correct areas of the design that do not meet the requirements before construction begins, avoiding costly change orders during construction.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 233