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Analysis suggests LEED buildings perform no better, and in fact perform worse, than non-LEED buildings. Many recommended actions, especially those selected by users, have little to no effect. Too few of its standards are results-driven, with high pay-back in areas other than environmental stewardship. Its rewards are self-serving, and used more often by a narrow group of elite users rather than a broad population. Recommendations include recognizing the shortcomings of current use characteristics, bringing clarity to the essentials of desired end performance, and refashioning certification standards to alter use of the program.
The Regional Green Building Case Study Project analyzes the post‐occupancy performance and costs and benefits of 25 LEED projects in Illinois related to: measured energy and greenhouse gas emissions, water, commute transportation, construction and operating costs, green premium, health and productivity impacts, and occupant comfort.