The Montreal Tower was a project commissioned by Taylor Woodrow and executed at the Euston office. It was presented to the authorities of the (then) forthcoming Montreal Expo as a "central feature". It had to incorporate a central concrete tower and provide a wide variety of public entertainment functions. This brief was extended to form a "skin and guts" proposition: a vertical tree with enormous roots on to which could be hung temporary exhibition elements that would be removed and replaced after the Expo.

In many ways, the project served as a trial run for notions of structural and component replacement that were developed in the Plug-in City. By comparison, the structure of the tower is closer, and the lift tubes -- though diagonal -- still form a separate structure. A skin wraps around the whole of the temporary infill.

Archigram, Edited by Peter Cook, Warren Chalk, Dennis Crompton, David Greene, Ron Herron & Mike Webb, 1972 [reprinted New York: Princeton Architectural Press, 1999]

Montreal Expo '67 is reported in Architectural Design, July 1967.