On March 25, 1978, Notre-Dame-du-Sacré-Cœur was annexed to the city of Brossard to solve the problem of providing sufficient services to and maintaining an adequate municipal government for such a small geographical area.
On March 25, 1978, Notre-Dame-du-Sacré-Cœur was integrated into Brossard to tackle the problem of providing sufficient services and maintaining a competent municipal government in such a small area.