LEED (Leadership in Energy & Environmental Design) is a rating system established by the United States Green Building Council (USGBC) to evaluate the environmental performance of a building and to drive market change toward sustainable design. The process was launched in an effort to develop a “consensus-based, market-driven rating system to accelerate the development and implementation of green building practises”.
Projects are awarded credits for environmental and sustainable actions throughout the specification, construction and use of a building. There are various types of LEED rating dependent on sector and type of building furthermore, credits differ for each rating system.