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Zurich Insurance Group Headquarters, Goettsch Partners, Thornton Tomasetti, LEED Platinum certification, green office building, Chicago, green roof, Chicago, green architecture, rainwater harvesting, greywater reuse, daylighting

The building comprises three bars stacked and arranged to maximize views of the surrounding landscape and optimize solar orientation. Its form and programmatic flexibility is rarely found in typical office buildings.

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Zurich Insurance Group Headquarters, Goettsch Partners, Thornton Tomasetti, LEED Platinum certification, green office building, Chicago, green roof, Chicago, green architecture, rainwater harvesting, greywater reuse, daylighting

Thornton Tomasetti analyzed and developed several sustainable strategies which were incorporated into the design of the building. Greywater reuse and rainwater harvesting systems were combined with detailed daylighting studies to reduce solar gains in the summer. The team used Honeybee software to evaluate the effects of automated interior blinds and calculate the efficiency of exterior shading devices. Other sustainable features include multiple green roofs, accommodation for low-emitting vehicles and native landscaping.

+ Goettsch Partners

+ Thornton Tomasetti

Photos by James Steinkamp