LEED® is a voluntary certification protocol applicable to any type of building, encompassing the entire life cycle of the building from design to construction.

LEED promotes a sustainability-oriented approach, recognizing building performance in key areas, such as energy and water conservation, reduction of CO2 emissions, improvement of the ecological quality of interiors, materials and resources used, and design and site selection. Developed by U.S. Green Building Council (USGBC) and verified by Green Business Certification Inc. (GBCI), the system is based on meeting prerequisite requirements and awarding “credits” for each requirement. The sum of credits allows the achievement of 4 levels of certification: LEED Certified, LEED Silver, LEED Gold and LEED Platinum.