Between 1978 & 1995 Greg completed his Bachelor of Science (Architecture), Bachelor of Architecture, Master of Architecture and became a Registered Architect. In addition to past and current design with timber, Greg is involved in efforts to gain the most from Australia's plantation resources. Since 1994 Greg has researched and published copious amounts of books, journal articles, and conference publications, all with a key focus in sustainable design, environmental aspects of construction and building performance, as well as the broader use of renewable materials in the built environment. Greg is an experienced research manager and has directed and conducted numerous industry funded works.