The Ontario Heritage Trust is a non-profit agency of the Ontario Ministry of Tourism and Culture. It is responsible for protecting, preserving and promoting the built, natural and cultural heritage of Canada's most populous province, Ontario.
The Ontario Heritage Centre at 10 Adelaide Street East in Toronto is the headquarters of the Ontario Heritage Trust.
The Ontario Heritage Act, first enacted on March 5, 1975, allows municipalities and the provincial government to designate individual properties and districts in the Canadian Province of Ontario, as being of cultural heritage value or interest.
Old City Hall in Toronto in 1907. Its proposed demolition in the 1960s contributed to increased heritage awareness in Ontario, which led to heritage protection measures such as the Ontario Heritage Act.
Plaque on the Griffin House in the Dundas Valley Conservation Area, showing that the building is protected under the Act.