Canada's Four Corners Building

Ottawa, Canada

Exterior only

Visible from the street; the inside is private.

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Heritage registerCanadian Register of Historic Places↗

Canada's Four Corners Building, completed in 1870 in Ottawa, is a Second Empire style office structure built of sandstone and recognized as a federal heritage building. The building's architectural vocabulary—characteristic of the Second Empire period with its distinctive formal massing and material presence—reflects the aesthetic preferences of mid-nineteenth-century Canadian institutional architecture. Its sandstone construction has enabled the structure to endure as a notable example of the era's public buildings in the nation's capital.