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fragmented solutions for design and construction challenges. These solutions often create unintended consequences — some positive, but mostly negative. Integrating different areas of practice helps project teams identify opportunities to significantly improve building performance and achieve synergies that yield economic, environmental, and human health benefits.

Integrative Design Process

In an integrative design process (IDP), an entire team (client, designers, builders, and operators) identifies overlapping relationships, services, and redundancies among systems so that interdependencies and benefits that would have otherwise gone unnoticed, to increase performance and reduce costs. This approach requires project teams to have representatives from various disciplines sharing their knowledge, analyses, and ideas to inform and connect each other’s work. Following this model LEED credits become aspects of a whole rather than separate components, and the entire design and construction team can identify the interrelationships and linked benefits across multiple LEED credits.

Approaching certification using an integrative process gives the project team the greatest chance of success. The process includes three phases:

• Discovery . This is the most important phase of the integrative process and is an extensive expansion of pre-design. Without this phase, it can be a challenge for projects to meet environmental goals in a cost-effective way. Discovery work should take place before schematic design begins.

• Design and construction (implementation) . This phase begins with schematic design. It resembles conventional practice but integrates all the work and collective understanding of system interactions reached during the discovery phase.

• Occupancy, operations, and performance feedback . This phase focuses on preparing to measure performance and creating feedback mechanisms. Assessing performance against targets is critical for informing building operations and identifying the need for any corrective actions.

To achieve economic and environmental performance, every issue and all essential voices (community, clients, designers, engineers, constructors, operators) should be brought into the project at the earliest point and before anything is designed.

Conduct this holistic process of research, analysis, and workshops in an iterative cycle that refines the design solutions. In the best scenario, teams will continue the research and workshops until the project systems are optimized, all reasonable synergies are identified, and the related strategies associated with all LEED credits are documented and implemented.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 40