An internationally recognized pioneer, practitioner, and educator in integrative systems design, sustainability, and regenerative community planning. As a principal at Regenesis, he works to align human activities with natural systems, fostering full integration and co-evolution between communities and the environment. His goal: to enhance the physical, social, and spiritual well-being of our living places—and, in turn, the planet.

 Bill is a founding Board Member of the U.S. Green Building Council and a co-developer of the LEED Green Building Rating System. He is also a co-author of the influential book Integrative Design Guide to Green Building and has contributed to numerous technical publications on green design. With experience on hundreds of green design and regenerative development initiatives, Bill is widely regarded as a thought leader in this field. He frequently speaks at major planning, building, and design conferences and serves as a guest lecturer at universities across North America and Europe, including Harvard, MIT, Yale, Princeton, the University of British Columbia, Universidad Iberoamericana, and the University of Pennsylvania.