By Charlie Popeck/Green Ideas Building Science Consultants
At the U.S. Green Building Council’s Greenbuild Conference in late 2023, the new LEED Version 5 was the main topic of interest. At this annual conference, the USGBC soft-launched a radical structural overhaul to all the LEED rating systems and also released a full draft of LEED v5 for Operations and Maintenance: Existing Buildings.
The USGBC is planning to release LEED v5 in late 2024 and will be available for projects to register in early 2025. The three overarching goals of the new LEED v5 system are Climate Action, Quality of Life and Ecological Conservation & Restoration. The weighting of LEED credits is important with any LEED upgrade. The weightings are as follows:
Goal #1-Climate Action (50% of Points)
The proposed weightings make climate (decarbonization and resilience) 50% of the updated rating systems points.
Goal #2-Quality of Life (25% of Points)
25% of the weight is on “quality of life,” which is a catch-all term for a variety of goals, encompassing social equity and health and well-being, including indoor air quality, passive survivability and material health.
Goal #3-Ecological Conservation & Restoration (25% of Points)
The final 25%, “ecology,” isn’t just about site and landscape, although they are still addressed in many of the points. As currently presented, ecology will intersect with ecotoxicity and other pollution associated with materials as well.
There are five principles that apply to each of the goals, ensuring that the goals overlap and are integrated with one another. The principles are:
- Decarbonization,
- Resilience,
- Health and Well-being,
- Equity,
- Ecosystems.
The USGBC has created a chart that illustrates how LEED v5 credits will apply to each goal and corresponding principle. The chart and additional information about all of the new LEED v5 systems can be found here.
The USGBC and their LEED Green Building Rating Systems will continue to evolve as the non-profit organization continues to push the boundary as it aggressively encourages integrative design, construction and operations of buildings. Since integrative design is paramount, the new LEED v5 system is attempting to develop a robust system that integrates throughout all of the LEED Rating Systems and the individual credits within each.
LEED v5 is not a system that is available for use yet. The new system is currently a collection of concepts and drafts that are being evaluated by USGBC Steering Committees and will be approved by members sometime in the near future. But the philosophy behind it is clear, and USGBC is already bringing certain details into focus.
The system is currently in its “public comment period”, which is typical of all LEED systems as they are being developed. This approach permits USGBC members and the general public to submit comments about development of the new rating system.
What does this mean to our AEC community? It means that you should be at least familiar with how the LEED system is progressing and evolving, as you are sure to be involved with a project targeting LEED certification sooner or later if you haven’t been already. My advice is to register any potential projects targeting LEED certification ASAP, as your project will be grandfathered into the current LEED v4 / 4.1 system, which is sure to be less stringent than future versions like LEED v5.
We will share additional details about LEED v5 as they become available from the USGBC.
About Green Ideas® Building Science Consultants
Charlie Popeck is President and CEO of Green Ideas, a full-service building science consulting firm offering 3D energy and daylight modeling, building commissioning and world-class LEED certification services. The firm is designated as a LEED Proven Provider by Green Business Certification Inc. Its clients are building owners, architects, engineers, contractors, real estate developers, facility managers and corporate entities wishing to establish business advantages through high-performance building practices. With a vision as bold as the results they achieve, Green Ideas is dedicated to transforming the market by promoting building science through a “triple bottom line” approach to business operations.