Gunnar Hubbard is a recognized leader in green building across the United States and in Asia, Europe and the Middle East with 25 years of experience as a licensed architect, consultant, educator and advocate. As a principal and Thornton Tomasetti’s Sustainability practice leader, he oversees green building experts in the New York City, London, San Francisco and Portland, Maine, offices and collaborates with the firm’s six other practices and all offices.

Gunnar has played a key sustainability role on a wide variety of building types, including commercial, educational, residential, research and healthcare facilities, hotels, high rises and museums. As “keeper of the environmental mission of a project,” he guides world-renowned architects and unites building professionals on an integrative path to design high-performance green buildings internationally. He has delivered more than 100 projects, ranging from the $8.4 billion hotel, retail and residential CityCenter Las Vegas to green certification for 12 million square feet of real estate in Sweden and a net zero energy LEED-Platinum education center in Maine.