Louis Koehl, AIA, CPHD

Senior Associate, Director of Sustainable Design

Louis Koehl is a Senior Associate and Director of Sustainable Design at Handel Architects. He is responsible for advancing the firm’s mission of industry leadership in sustainable design by supporting strategic initiatives focused on aspirational goals. He serves as a resource to both the firm and the development community.

Mr. Koehl’s projects at Handel Architects include Sendero Verde in East Harlem, the world’s largest fully affordable Passive House building; Harmony Commons for the University of Toronto, the largest Passive House dormitory in the world; and Winthrop Center, a mixed-use project in Boston which includes 812,000 SF of Passive House commercial space, making it the largest Passive House building globally. He also worked on Sven, a LEED Platinum residential tower in Long Island City.

Current work includes two projects for Banco Santander, both of which will showcase groundbreaking approaches to sustainable design. Santander's Santiago Headquarters is designed to "open up” to the outside in order to reduce the building’s reliance on active mechanical systems – and the fossil fuels that power them. And the Santander Tower in Miami will feature an external diagrid, resulting in a 30% savings in structural concrete.

Louis is a registered architect in the State of New York and a Certified Passive House Designer. He received his Master of Architecture from Columbia University after receiving his Bachelor of Arts in Architecture from the University of Kentucky.