
Toronto is the first City in North America to have a bylaw that requires and governs the construction of green roofs on new developments. It was adopted by Toronto City Council in May 2009, under the authority of Section 108 of the City of Toronto Act. The Bylaw applies to new building permit applications for residential, commercial and institutional development made after January 31, 2010 and applies to new industrial development as of April 30, 2012.
The Toronto Food Policy Council helped to initiate the City Hall Green Roof project in 1999. Some research has been done on how this green roof bylaw in Toronto can be used to encourage rooftop food production, including mention in the GrowTO: Urban Agriculture Action Plan.
Follow the links below for additional information:
http://www.foodshare.net/news/the-nuts-and-bolts-of-urban-agriculture-and-green-roofs/