It was demolished July 13, 2014, but the cafeteria wing is the only part of the building to remain.

[1] In the early 1950s, the offices for the federal agriculture department were scattered over 18 different sites, prompting the planning for the Carling Building, which began in 1954.

[2] Ottawa architect Hart Massey (1918–1996) designed the Sir John Carling in the 1960s and it opened in 1967, Canada's centennial year.

[2] Already by 1994, a study found that the building was suffering from long-term neglect and "may not be worth saving".

[2] A year later, the Federal Heritage Buildings Review Office designated it as a recognized federal heritage building for its historical associations, and its architectural and environmental values.