The Observatory House is located on landscaped grounds at the Central Experimental Farm in Ottawa. The large and dignified two-and-one-half-storey structure is constructed in brick with a stone foundation and wood shingle roof. The house displays elements of both the Queen Anne and Classical Revival styles, including its generous verandah around two elevations, irregular eave line. Classical Revival influences are evident in the balanced arrangement of dormers, classical columns and the building’s central entrance hall. The designation is confined to the footprint of the building. Observatory House is associated with the theme of Canadian research in astronomy and geophysics.
Built in 1909 shortly after the construction of the Dominion Observatory, the building served as the official residence of the Dominion Chief Astronomer for many years, including William King, R.M. Stewart, and C.S. Beale, each of whom made significant contributions to the field. In addition to its residential function, magnetic survey work and other research were carried out in the building's basement laboratories.
In-person visiting hours
*Follow building health protocols.
- Saturday, June 3 202310am to 4pm
Virtual and 3D Tours
This building does not offer virtual or 3D tours.

Architecture
Amenities and features
- New participant building
- Public washrooms
- Accessible access
- Free parking
- Bike parking
- Family friendly
- Guided tours
- OC transpo nearby