It is administered by Toronto District School Board (TDSB), de jure located at 2690 Eglinton Avenue West.

In 1929, the Council of the Township of York decided to construct a high school in memory of their youth killed in World War I and purchased 9.5 acres (3.8 ha).

The Collegiate Gothic building with Don Valley Brick and smooth faded stone, consists of 15 classrooms, 3 science labs, an auditorium, cafeteria, two gyms, a swimming pool, and various offices.

[7] The second fire caused sections of the roof and walls to collapse, as well as damage or destruction to the stained glass windows in the auditorium.

The school is being rebuilt using materials including brick and a stained glass window salvaged from the remnants of the current building.

[11] York Memorial has Roadmap to University with Success with Honours (RUSH) and Advanced Placement (AP) programs.