29 2006: May 27, 28 2007: May 26, 27 – Sustainability 2008: May 24, 25 – Sacred Space 2009: May 23, 24 – Toronto's Literature 2010: May 29, 30 – Architecture 2011: May 28, 29 – Photography 2012: May 26, 27 – 200 Years of Building Our City 2013: May 25, 26 – Creators, Makers and Innovators 2014: May 24, 25 – Secrets and Spirits; Exploring the Mysteries Behind the Door 2015: May 23, 24 – Sports, Recreation and Leisure 2016: May 28, 29 – Re-used, Re-visited and Revised 2017: May 27, 28 – Fifteen Decades of Canadian Architecture 2018: May 26, 27 – Film: The Great Romance 2019: May 25, 26 – 20 Something 2020: The event was originally scheduled for May 23 and 24; however, due to the evolving situation surrounding the COVID-19 pandemic, and with major events and festivals being banned by the City of Toronto until at least June 30, 2020, the event was cancelled. 2021: The event was originally scheduled for May 29 and 30; it was cancelled due to the ongoing COVID-19 pandemic. Complete list of participating venues since 2004 Sources for the above table: Gallery See also Doors Open Canada List of oldest buildings and structures in Toronto Open House Chicago Open House New York References External links Toronto Star Doors Open Site Toronto Buildings and structures Buildings and structures Recurring events established in 2000 2000 establishments in Ontario May events