Doors Open Ontario

David Dunlap Observatory Doors Open Richmond Hill


David Dunlap Observatory

Since 1935, this observatory has been a research centre for the University of Toronto. Today, it is a facility for public education and outreach. Come and participate in astronomy-themed activities by the University of Western Ontario, the Royal Astronomical Society of Canada and the David Dunlap Observatory Defenders. Tour the Ylab maker space and view modern and heritage metalworking machinery.

Tell us your story about this site

  • Parking
  • Washrooms
  • Kid-friendly
  • Guided tours available
  • Site is protected by the Ontario Heritage Trust

Contact info

123A Hillsview Drive
Richmond Hill, Ontario


Year built: 1935
Architect: Mathers and Haldenby
Architectural style: Beaux arts
Building type: Attraction, Educational facility, Historical landmark
Landscape: Garden, Park

Dates/hours open

Saturday May 11, 2019
Saturday: 10 a.m. to 4 p.m.

David Dunlap Observatory 123A Hillsview Drive