Guests mingle in the atrium of the buildings at 25 and 75 Tri-State International Drive in Lincolnshire, which were recently LEED certified by the U.S. Green Building Council. | Curtis Lehmkuhl~Sun-Times Media

Ben Bischmann with Colliers International talks with guests Sept. 13 during the LEED certification ceremony in the atrium of his company's Lincolnshire buildings. | Curtis Lehmkuhl~Sun-Times Media

Katie Kalzuny with the U.S. Green Building Council of Illinois discusses the environmentally friendly aspects built into the LEED certified buildings at 25/75 Tri-State International Drive in Lincolnshire. | Curtis Lehmkuhl~Sun-Times Media

Lincolnshire Village Manager Brad Burke addresses guests Sept. 13 at the LEED plaque ceremony at 25/75 Tri-State International. There are four LEED certified buildings in Lincolnshire. | Curtis Lehmkuhl~Sun-Times Media

State Rep. Karen May talks about the importance of sustainable policies and building Sept. 13 at the LEED plaque ceremony at 25/75 Tri-State International in Lincolnshire. | Curtis Lehmkuhl~Sun-Times Media

The buildings at 25 and 75 Tri-State International Drive in Lincolnshire have been LEED certified by the U.S. Green Building Council. | Curtis Lehmkuhl~Sun-Times Media

The buildings at 25 and 75 Tri-State International Drive in Lincolnshire have been LEED certified by the U.S. Green Building Council. | Curtis Lehmkuhl~Sun-Times Media

The buildings at 25 and 75 Tri-State International Drive in Lincolnshire have been LEED certified by the U.S. Green Building Council. | Curtis Lehmkuhl~Sun-Times Media