The results of two recent studies—one carried out by the New Buildings Institute (NBI), the other by CoStar Group—show that green building standards are not only effective, but also escalate property values. The post-occupancy studies, both released in March, attempted to measure the value of buildings with sustainability features compared to conventional buildings. They also aimed to demonstrate the effectiveness of third-party certification programs, specifically LEED, administered by the U.S. Green Building Council (USGBC), and Energy Star, managed by the Environmental Protection Agency and the U.S. Department of Energy.
One study confirmed that new LEED-certified buildings use less energy than non-certified buildings. Commissioned and funded by the USGBC, the study was conducted by the NBI, a nonprofit organization in the Pacific Northwest that specializes in providing information about sustainable architecture. Researchers compared data on energy use intensities collected from 121 LEED-certified buildings to statistics from an energy survey conducted by the federal government in 2007.