The building also housed some Health Canada operations, notably the headquarters of the Pest Management Regulatory Agency.

It was named in honour of the Father of Confederation and sixth Prime Minister of Canada.

[3][4] The Tupper building is one of the five original facilities making up the Confederation Heights development completed from the late 1950s into the 1960s, in accordance with the Greber Plan to decentralize Federal government functions.

Built in International Style on a large sloping site at Confederation Heights, the Tupper building consists of five thin, interlocking rectangular blocks, four/five stories tall, laid out at right angles in a geometric, stair-like arrangement.

In recognition of its architectural importance, the Sir Charles Tupper building was added to the Canadian Register of Historic Places in 2007.