Gunnar Hubbard FAIA, LEED Fellow

Gunnar Hubbard FAIA, LEED Fellow

Portland, ME, US



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.


Gunnar's Featured Articles on Archinect

Five Steps to Becoming a More Responsible Architect in the Age of Climate Change, Thu, Dec 13 '18

The latest climate report by the United Nation’s Intergovernmental Panel on Climate Change (IPPC) anticipates that the world will experience the more extreme effects and consequences of climate change much earlier than originally thought, all within most of the global population’s lifetime ...

Five Steps to Becoming a More Responsible Architect in the Age of Climate Change


Thornton Tomasetti, New York, NY, US, Principal & Sustainability Practice Leader

Jan 2012 - current

Areas of Specialization