Doors Open Ontario

The Ontario Heritage Trust works with communities across the province to open the doors, gates and courtyards of their unique and most fascinating cultural sites so you can explore the stories inside. Discover the story behind every door.

What is Doors Open Ontario?

Doors Open Ontario is a provincewide heritage tourism program that gives the public free access to explore fascinating heritage properties all across Ontario. It showcases the buildings, natural spaces, infrastructure and cultural landscapes that shape and define our communities. Hosting Doors Open Ontario in your community celebrates its identity, generates volunteerism, builds interest in Ontario’s heritage and drives cultural tourism and economic development opportunities. Participating sites must offer free admission to the public and can include museums, places of worship, public, cultural or institutional buildings, private businesses, trails and natural areas and more.

Aylmer Old Town Hall (Photo: Doors Open Aylmer and Malahide)

Aylmer Old Town Hall

Photo: Doors Open Aylmer and Malahide

Presenting sponsor

See what communities are participating in 2025

April

  • Guelph (April 26)

May

  • Oshawa (May 3)
  • Hamilton Region (May 3-4)
  • Along the Grand (May 10)
  • Richmond Hill (May 10)
  • Toronto (May 24-25)

June

  • Whitchurch-Stouffville (June 7)
  • Ottawa (June 7-8)
  • Loyalist Township (June 14)
  • Owen Sound (June 21)

August

  • Seaforth (August 1-2)
  • Burlington (August 9)
  • St. Marys (August 9)
  • Cornwall and SDG Counties (August 16-17)
  • Rideau Lakes (August 16-17)

September

  • Belleville (September 13)
  • Peterborough (September 13)
  • Simcoe County (September 13)
  • Aylmer and Malahide (September 20)
  • Gravenhurst (September 20)
  • Markham (September 20)
  • Waterloo Region (September 20)
  • London (September 20-21)
  • Aurora (September 21)
  • Barrie (September 27)
  • Mississippi Mills (September 28)

October

  • Quinte West (October 4)
  • Sault Ste. Marie (October 4)
  • Woodstock (October 4)
  • Niagara-on-the-Lake (October 18)
  • Whitby (October 18)

Date to be confirmed

  • Brampton

Find out more

Visit the Doors Open Ontario website and discover all the sites that are participating in events throughout the season. See how you can volunteer and support this provincewide event. Connect with the past and appreciate the architectural and cultural wonders that make Ontario unique.

Start planning your excursion today