It’s difficult to capture all that the multi-hyphenate Felix Heisel has achieved and created in the world of circular architecture in the past 15 years. Since graduating from architecture school in Germany, circular construction has been a central focus of his career.

He’s authored numerous books and papers on the topic, created and now directs the Circular Construction Lab at Cornell University, and has led countless circular construction exhibitions and research projects around the world, including one of his most current, called AR3-Lumber, an AI-driven application that will visually grade reclaimed lumber.

At this year’s Build Reuse conference, Felix shared some of the findings from their studies and what he sees as important next steps to bring circular architecture more mainstream.