Construction projects started on Île-des-Sœurs in the 1960s. Developed in different phases, they included both high-rise buildings and town houses. Renowned architects such as Ludwig Mies van Der Rohe and Donald Lee Sickler worked on these developments.

The innovative architecture of these new developments, the garden city concept and the magnificent view of the river quickly made Île-des-Soeurs a prized living environment.