The portfolio being sold includes six standing assets and three facilities under development.

The move comes as Twitter faces growing pressure from politicians and regulators over the content that appears on its platform.

The new building will house up to 14,000 employees – replacing an outdated facility designed in the late 1950s for about 3,500 employees.

Prices have jumped more than 20%, pushing the average home in Canada to nearly €599,784 - more than nine times the average household income.