Mr. Hofer's career began in Switzerland with an apprenticeship in horticulture and landscape construction. He then studied at the Gartenbauschule Oeschberg in Switzerland, where he graduated in 1966 with a Master Diploma in Landscape Design and Technology. In the late sixties he worked in Sweden, France and Switzerland, notably in the offices of Franz Vogel and Intergreen. In 1972 he came to Canada, getting involved in the open space planning for the new community of Erin Mills in Mississauga.
Ruedi became a member of the OALA and CSLA in 1983 and has been practicing in a wide range of landscape architectural disciplines, as assisting professor at the University of Toronto in the nineties, and as principal of PMA to this day. His most notable project is the Husky Injection Molding Systems Industrial Campus in Bolton, which reflects his exemplary environmental design capabilities. He has won numerous awards for his work with Husky, for two of PMA's recent master plans --Port Huron Framework Plan and Oshawa Valley Botanical Gardens- and for The Lester B. Pearson Garden for Peace and Understanding, an urban courtyard at the University of Toronto campus. In 2001, Ruedi received OALA's Carl Borgstrom Award "to recognize a special or unusual contribution to the sensitive, sustainable design for human use of the environment"