Westmount Square
Westmount Square, also known as Carré Westmount, is a combined office and residential complex in Westmount, Quebec, Canada. It sits above an underground shopping concourse with about 35 shops and is connected by tunnels to Place Alexis Nihon, Dawson College, and the Atwater Metro station. The site lies between Sainte-Catherine Street West and De Maisonneuve Boulevard West, and between Wood Avenue and Greene Avenue.
Designed by Ludwig Mies van der Rohe in the International Style, construction began in 1964 and the complex opened on December 13, 1967. The exterior uses curtain walls of black anodized aluminum and smoked glass, modeled after Chicago’s Lake Shore Drive Apartments.
Tower 1 (the main office building) has 22 floors and stands about 83 meters tall. The other office building, Tower 4 Pavilion, has two floors and was formerly the Eastern Airlines Building. The two residential towers each have 21 floors and stand about 69 meters tall.
The shopping concourse houses boutiques and art galleries, with about one-third of the space reserved for private for-profit health clinics. In 1990 skylights were added to the concourse roof, which drew some criticism from architectural preservationists. The complex is owned by Creccal Investments Ltd.
This page was last edited on 2 February 2026, at 23:17 (CET).