 He has served on both the San Francisco and California AIA Committees on Historic Preservation, was former Chairman of the National AIA Committee on Historic Resources, and is an Advisor Emeritus and former Board of Trustees Member of the National Trust for Historic Preservation where he served for nine years.He served as a Board member of Preservation Action for ten years, and is a former President of San Francisco Heritage.In 2006 the Architectural Resources Group received the AIA California Council, Firm of the Year and in 2005 the Conservatory of Flowers received a National Honor Award for Architecture, from the American Institute of Architects.