Our History

The Chicago Center for Green Technology (CCGT) is the first rehabilitated municipal building in the nation to receive the LEED® Platinum rating from the U.S. Green Building Council.

Former Mayor Richard M. Daley dedicated the building in 2002 and it has gone on to become a national model for sustainable design and technology.

Since its original construction in 1952, several companies have owned the Chicago Center for Green Technology’s (CCGT) building and land.  In 1995, the owner was Sacramento Crushing, a company with a permit to collect limited construction and demolition debris.

The company far exceeded the permit’s scope, filling all 17 acres with illegally dumped debris and the Department of Environment (DOE) became involved. 70-foot high piles of rubble littered the site, one which was so dense that it sank 15 feet into the ground.

DOE successfully fought Sacramento Crushing in court and not only closed down their operation but also took possession of the site itself, assuming responsibility for the environmental clean up. Eighteen months and $9 million later, the site was cleared of more than 600,000 tons of concrete, requiring 45,000 truck loads to remove.

The City recouped some of the clean up costs by selling the concrete and other materials to recycling firms and to other city departments for use in their projects. Some of the crushed concrete was used by the Chicago Department of Transportation to lay the foundation of the parking garage at the new Millennium Park.

In 1999, DOE seized the opportunity to create an energy efficient building using the highest standards of green technology available instead of renovating the vacant building using traditional methods.

The Chicago Chapter of the American Institute of Architects Committee on the Environment formed a design team for the project. This team of local architects, led by Farr Associates, used a set of guidelines established by the US Green Building Council known as Leadership in Environmental and Energy Design or LEED™. 

To match the vision of the building, DOE selected tenants who are environmentally focused. CCGT is free and open to the public  and continues to serve as the most comprehensive green design educational resource in the Midwest.

Chicago Center for Green Technology
445 N. Sacramento Boulevard
Chicago, IL 60612
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