The physical school building was opened for occupancy on a 4.5 acre site in November, 1942. The original school was designed as a one storey brick building of 4,800 square feet. The building contained four classrooms and a small auditorium.

Since the building was not ready until November, classes for that school year, 1942, began in the basement of the church. Enrolment on that September 8 was 84 students. The first principal of the school was a Sister of St. Joseph, Sister Leona. Staff working with her were Sister Mary Elizabeth and Miss Rose Cassin. The St. Joseph Sisters actually lived in a small farm house which was located just to the north of the school.

Additions to the original building were made in 1949, 1963, and 1968. Enrolment in the school continued to climb over the years. In June, 1992, Our Lady of Sorrows School celebrated its Fiftieth Anniversary as a school. As the Fiftieth Anniversary was being celebrated, plans were well underway to build a new school as a part of a joint venture with the City of Toronto which was working toward the completion of a newly designed recreation centre and a renovated swimming pool, Memorial Pool.

In September, 2002, students, families, and staff were able to enter the very impressive new building of Our Lady of Sorrows Catholic School.This new elementary school represents the second phase of a two-phase project which included Memorial Pool and Health Club.the school is designed around a 2-1/2 storey interior courtyard which brings light to the interior of the building, and serves programmatically as both an informal meeting area and a lunch room.  Classrooms surround the courtyard and are arranged in a split level configuration derived from grade changes on the site.  An existing school and pool were demolished as part of the new development, while a covered arena has been retained, connected by interior walkways to both the pool and the school. The project was designed in joint venture with Diamond Schmitt Architects Inc. & G. Bruce Stratton Architects and cost$17M (Phase 1&2). 

• Architect - Diamond Schmitt Architects  <-- More buildings by this architect.
• Architect - G. Bruce Stratton Architects  <-- More buildings by this architect.