The LEED Certification

The goal of LEED standards is promoting awareness of environmentally sustainable construction among builders and architects with a flexible but well-articulated point system for building certification.
Points are assigned on the basis of calculation of credits assigned for each of the requirements determining the building's sustainability. The total number of credits determines the certification level.

The parameters for credits assignment are now defined according to LEED and BREEAM. BREEAM (BRE Environmental Assessment Method) is the leading and most widely used environmental assessment method for buildings. Created in 1990, it sets the standard for best practice in sustainable design and has become the de facto measure used to describe a building's environmental performance.