Gunnar Hubbard

Gunnar Hubbard, FAIA, LEED Fellow

Principal and Sustainability Practice Leader


Gunnar Hubbard is a recognized leader in high performance, low energy, and healthy buildings across the United States and in Asia, and Europe. He has over 25 years of experience as a licensed architect, consultant, educator and advocate. His works spans from airports, to office  buildings, to institutional, to affordable housing. As Thornton Tomasetti’s Sustainability practice leader, he oversees green building experts in the New York City, London, San Francisco, Boston and Portland, Maine, offices and collaborates with the firm’s nine other practices and all offices. Gunnar is an expert in creating high performance, low energy, healthy buildings. His current focus is advancing the firm’s building analytics services and expertise in certification systems such as Passive House, Living Building Challenge, and WELL. The practice has certified over 400 green buildings across the globe. In 2015, he was accepted as a Fellow of the American Institute of Architects, and in 2012 he became a LEED Fellow. His past experience includes working at Rocky Mountain Institute as a research scholar in Green Development Services, and was the Executive Director of the Yestermorrow Design Build School from 1993-1996. He has a Masters of Architecture from the University of Oregon, and B.S. from the University of Vermont.