Craig Griffen, RA, LEED AP, is a Professor in the College of Architecture and the Built Environment at Thomas Jefferson University in Philadelphia.  After graduate studies at Washington University in St. Louis, and professional practice in Chicago, he started teaching at Jefferson in 1995.  His teaching and research areas revolve around the integration of architectural design with sustainable building technology.  His most recent published research/design work examines methods for creating mass housing models that incorporate passive energy and resilient design strategies, are adaptable to a range of urban and suburban contexts, and can be affordably premanufactured using sustainable construction.