Gallery: Christman HQ: The World’s First Double LEED Platinum Building

N materials that were bought for the renovation were sourced from recycled, reclaimed or local materials.

The Christman Company is a construction management and development firm that specializes in historic renovations, so it was only fitting that the firm chose a historic five-story building in the heart of downtown Lansing to locate their new headquarters. The company wanted to prove its commitment to healthy interiors and energy efficiency through the ultimate green renovation demonstration project.

The Christman Company worked with SmithGroup to renovate the old Mutual Building into the world’s first “Double Platinum” LEED certified building – the project was awarded certification for both its Core and Shell (CS) and Commercial Interiors (CI). The project has also garnered a number of prestigious awards since its building completion in 2008.

To preserve the character of the historic downtown building, over 92% of the existing walls, roofs and floors were salvaged and restored, while new materials were sourced from reused, recycled and regionally-manufactured sources. Around 77% of construction debris and demolition materials were diverted from the landfill.

A healthy interior work place was a major focus for the team — their design includes the use of low-VOC sealants, carpets, and interior finishes. Heating, cooling and ventilation is provided by an under-floor air distribution system, which provides individual control for each work station and generates 200-300% more ventilation than conventional systems. Additionally, 92% of the space receives natural daylight thanks to the large atrium with skylights located in the center of the building.

+ The Christman Company

+ SmithGroup



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