John G. Diefenbaker Building
John G. Diefenbaker Building, Administrative building on Sussex Drive, Ottawa, Canada.
The John G. Diefenbaker Building stands on Green Island where the Rideau River meets the Ottawa River, featuring Modern International architectural elements.
Originally serving as Ottawa's city hall from 1958 to 2001, the building was renamed in 2011 to honor Canada's thirteenth Prime Minister John Diefenbaker.
The structure received the Massey Medal in 1959 for its architectural design, establishing its position among notable International Style buildings in Canada.
The building houses offices of Global Affairs Canada, with specific access protocols and security measures in place for government operations.
The structure became the first building in Ottawa to incorporate full air conditioning systems when it opened in 1958.
Location: Ottawa
GPS coordinates: 45.43990,-75.69470
Latest update: November 24, 2025 17:37
This collection brings together major works by architect Moshe Safdie, whose practice is distinguished by particular attention to natural light, outdoor spaces, and the integration of buildings into their surroundings. From Montreal to Singapore, through Jerusalem and several American cities, his projects demonstrate an approach that seeks to reconcile contemporary needs with respect for local contexts. Among the featured works are Habitat 67 in Montreal, an experimental residential complex composed of stacked concrete modules offering each unit its own terrace, and the Marina Bay Sands complex in Singapore with its three towers connected by a 340-meter terrace. The collection also includes several museums such as the Yad Vashem Holocaust History Museum in Jerusalem, the Crystal Bridges Museum of American Art in Bentonville, and the National Gallery of Canada in Ottawa. Other projects like the Salt Lake City Public Library, the Kauffman Center for the Performing Arts in Kansas City, or the Khalsa Heritage Memorial Complex in India illustrate the diversity of architectural programs entrusted to Safdie throughout his career.
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