Under the mayor's direction, the city of Chicago has been implementing a new approach to the design, construction, and operation of public buildings that seeks to create healthy, high-quality structures in a manner that is both fiscally and environmentally responsible. This approach results in "green" buildings that enhance occupants' health and well-being, cost less to operate, and require fewer resources to build and maintain.
To that end, the city of Chicago has adopted the Chicago Standard, which is a new set of construction standards for public buildings that is derived from the LEED® Green Building Rating System developed by the USGBC. These standards were closely followed during the recent - and ongoing - renovation of City Hall, which included the installation of a new BAS to keep energy use under tight control.