St. Brendan Catholic School had humble beginnings. Opening its doors in 1972 in a portable building with an enthusiastic group of students and staff, a permanent facility was completed in 1974. The name St. Brendan was selected by Father Kenna, pastor of St. Joseph Church.
St. Brendan was the first school in the Toronto Catholic District School Board east of the Highland Creek Bridge and the first school in St. Joseph's Parish. A rapid expansion of the surrounding community during the 1970's and 1980's resulted in many portable classrooms being added to accommodate the increasing enrollment. In May of 1992, the official opening and solemn blessing of the expansion to St. Brendan was held.
