As Project Principal at Diamond Schmitt , Greg has co-ordinated the design and implementation of numerous large projects, particularly in health care and recreation. While completing a Bachelor of Architecture degree at Carleton University in 1982, he spent his fourth year of study at the Unité Pédagogique D'Architecture No. 4 in Paris.

Greg was Project Architect for the award-winning Baycrest Centre for Geriatric Care, Apotex Centre, Toronto as well as the Cawthra Community Centre, Mississagua.