James Bill

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Licensed Architect, CPHD, LEED AP
Zero Impact Architecture

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James is a licensed architect and president of Zero Impact Architecture (ZIA), a firm dedicated to integrating beauty, health, and comfort with the science of deep sustainability. He was the architect of the first newly built Passive House in California, an extremely low energy building that is also an affordable housing unit. Besides energy reduction and the impact buildings can offer in reducing climate change impacts, his sustainability interests include water reduction, reducing toxicity of materials to people and the environment, prefabricated construction, healthy indoor air quality, and all things Living Building Challenge. He is a past board member of the USGBC Redwood Empire Chapter, founding member and past Board Member of Passive House California, internationally Certified Passive House Designer (CPHD), LEED Accredited Professional, MIT Masters in Architecture recipient, an active speaker on carbon footprint reduction needs and strategies, and communication mediation expert.


Member for
10 years 2 months