Being very committed to the sustainability movement in Northern Colorado, Greg has served as a founding Steering Committee member of the Northern Colorado Branch of the USGBC, founding Education Committee Chair of the Northern Colorado Branch of the USGBC, board member of the IBE (Institute for the Built Environment) of Colorado State University, founding board member of CLEAR (Center for Living Environments and Regeneration) and founding developer of the LENSES (Living Environments in Natural Social and Economic Systems) framework. He is currently an active member of The Passive House Network.

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Greg has also been involved in many community efforts to enhance quality and green development, including authoring the Town of Windsor, Colorado’s Main Street Corridor Plans, serving on the Commercial Technical Advisory Committee for the City of Fort Collins’ green building code amendments, acting as a board member for the Local Development Company (a low interest loan or grant provider to quality projects in downtown Fort Collins) and serving on several architectural control committees. Greg also lead a year long educational effort for victims of the High Park Fire in helping them to build back better and greener. He also has shown his concern for the next generation of architects by assisting numerous students through various Poudre School District mentoring programs and in guest lecturing at Colorado State University.

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Greg has received several awards for his architectural work and his efforts in sustainability including several awards from the City of Fort Collins and being named the USGBC's (United States Green Building Council) Volunteer of the Year in 2009 and being named Colorado Green Building Guilds Green Champion of the Year in 2020.

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Since about 2016 Greg has become passionately involved with Passive House and the principles it promotes to create healthier, more comfortable and energy efficient environments. Related to this, Greg took a sabbatical in 2019 to design and "hands-on" build the second PHI (Passive House Institute) certified Passive house in Larimer County and one of a handful in Colorado.

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In his spare time, Greg enjoys spending time with his wife, Jeneen in their collective love of traveling. He also is a great music and fitness enthusiast, loves sports of almost all types, and enjoys reading, home improvement projects and woodworking.