This year’s California Green Building Conference 2025, hosted by USGBC-California, was held on May 22 at the iconic Fort Mason Center in San Francisco. Among the featured speakers was Christian Kienapfel, Architect and Certified Passive House Designer & Consultant, who presented an insightful session titled:
“Innovative SB9 & ADU Infill Housing: Leveraging International Passive House Standards for Sustainable and Resilient Solutions in Los Angeles, California.”

Passive House SB9 & ADUs in CA's Milder Climates. Christian Kienapfel, architect and Certfied Passive House Design presented during the Passive House California Community meeting a single-family home per SB9 and an ADU in Los Angeles.