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Willis Tower Is No. 1 Again — This Time With LEED Platinum Designation

Group Recognizes Energy Efficiency Work Done For Chicago Icon
Willis Tower is the largest building in the United States to get the LEED Platinum designation. (EQ Office)
Willis Tower is the largest building in the United States to get the LEED Platinum designation. (EQ Office)
By Jennifer Waters
CoStar News
December 20, 2019 | 9:35 P.M.

Willis Tower, its dominant stature long an iconic symbol of Chicago’s skyline, has a new mark of excellence: the nation’s largest building to earn the highest level of energy efficiency.

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