Cost and Benefit Analysis of LEED Building Projects As environmental problems become more and more serious these years, especially the intense negative impact that modern city buildings bring to cities, the concept of green building is increasingly being taken into account by local and federal governments. According to the US Green Building Council (USGBC), a green building is one that uses design and construction practices that significantly reduce or eliminate the negative impact of buildings on the environment and on building occupants. In addition to increasingly advanced building structure and technology, the main goal of green building is to protect the health of occupants, save energy and reduce environmental pollution. There are many green building certifications to judge whether the building meets green building standards and what level of environmental performance that building is at, to help government regulators, building professionals and consumers better see how that building performs. can be improved and what is its impact on humans and the environment. These green building programs include Leadership in Energy and Environmental Design (LEED), the Environmental Protection Agency's Energy Star program, National Association of Home Builders (NAHB Green), and more. Among them, LEED is one of the most popular certification programs that give building credits for its environmental performance. In this essay, I will discuss the costs and benefits of different types of LEED-certified building projects. “LEED, or Leadership in Energy & Environmental Design, is transforming the way we think about how our buildings and communities are designed and constructed. , maintained and o...... middle of paper ......egies and LEED certification, the costs of the building can actually be offset by the benefits, due to the significant energy savings and externalities positive. The concept of ecological building cannot be limited to an individual case. For the well-being of the whole society, the concept of Green Building should be extended to the concept of Green City, just as the mayor of Chicago claims, the "green city" is the future of modern cities, for achieve the “green city” objective. ", we must start with green buildings. To encourage more and more residents to support green buildings, purchase green buildings, and apply environmentally friendly habits in their daily lives, existing green building projects have the responsibility to express their "green" to more people as well as green building programs such as LEED must do more to make the idea of ​​green building a reality.