Richmond Hill David Dunlap Observatory
The Richmond Hill David Dunlap Observatory (RHDDO), designated under the Ontario Heritage Act and a national historic designation, is proudly owned by the City of Richmond Hill and is located at 123 Hillsview Drive. Although plans are currently underway for the transformation of the RHDDO property into a unique destination park, it operates today as a facility for public education and appreciation through a variety of City-run programs and partnerships. Surrounded by beautiful trails, the site is home to the historic Administration Building, Observatory Park and the Observatory Dome* that houses the iconic 74" telescope.
*Please note: the Observatory Dome is currently closed for restoration work.
Planning your visit
| Public Programs & Private Packages | ||
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From family programs to heritage tours, lectures with guest speakers to events, you'll find a variety of fun and educational opportunities to explore the cosmos while learning the history of this unique site.
Looking to book a youth group or school to attend the RHDOO? Perhaps you're seeking a private tour with your family? We welcome groups large and small and look forward to working with you to make your visit memorable. Our specialized educational programs will engage stargazers and science enthusiasts alike through our various Private, Group and School packages.
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| Tour the RHDDO | ||
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Visitors are encouraged to explore the many beautiful trails that surround the Richmond Hill David Dunlap Observatory all season long.
The Administration Building and Observatory Dome are currently closed for the season to the public, unless you are attending a registered program. Check back in spring 2025 for updated tour hours.
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| Stargazing Parties | ||
Bring Your Own Binoculars and observe the night sky at David Dunlap Observatory Park. Our stargazing parties are free, no registration is required. Please note that these events are weather dependent as they are held outdoors.
Please Note: Summer Stargazing Parties will return in May 2025. Check back for the schedule. |
Facility Bookings at the RHDDO
Looking for a unique location to hold your next meeting, bridal shower, photo shoot or private party? The Richmond Hill David Dunlap Observatory is a perfect venue. As one of Canada’s National Historic Sites, the 1935 Beaux Art style Administration building boasts a number of meeting rooms, a lecture hall and historic library.
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Browse through the various meeting and gathering rooms below to determine which space is best suited for your needs. Once determined, you can submit a Permit Request with your choice of room(s) date and time.
For more information about our various facilities including payments and policies, please visit our Facility Booking page.
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| Observatory Park - Weddings and Picnics | ||||||||||||||||||||||||||||||
| Weddings and Picnics
This 189-acre property has a great natural setting. The area also has the historic structures on-site, including the Observatory Dome and Administration Building. These buildings as well as certain landscapes in the park are protected as a cultural heritage landscape under the Ontario Heritage Act. Fees in effect until December 31, 2025 (HST Applicable) Picnic Permit
Three-Hour Wedding Permit:
Submit a Richmond Hill David Dunlap Observatory Park Permit Request |
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| Photo Permits | ||||||||||||||||||||||||||||||
| Indoor/Outdoor Package
Double your photo experience with a photo permit that includes Observatory Park, the lobby, main staircase and the historic library in the RHDDO Administration Building.
Outdoor Permits Observatory Park is a beautiful setting for wedding, engagement or family photos. This 189-acre property has a great natural setting. The area also has historic structures on-site, including the Observatory Dome and Administration Building and will make a stunning backdrop for your photos. Fee in effect until December 31, 2025 (HST Applicable):
Submit a Photography Permit Request to book your preferred photo shoot location and time. |
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| Film Permits | ||||||||||||||||||||||||||||||
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The historic buildings, unique features of this site surrounded by picturesque landscapes make the Richmond Hill David Dunlap Observatory a sought-after filming location. To enquire about filming on location please complete a Film Permit request and staff will reach out within 5 business days. |
*A Note Regarding Accessibility* Please note that the Observatory and Administration Buildings are historic buildings and do not meet existing accessibility standards. Access to both buildings is by stairs only. Washrooms and program rooms are located in the basement and on the second floor of the Administration Building and are accessible only by stairs. Both the Administration Building and the Observatory do not have elevators.
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