 The school, then renamed to "Midland Avenue Secondary School", was then designed by an architectural firm Craig, Madill, Abram and Ingleson.Midland S.S. was constructed in 1961 and opened its doors in September 4, 1962 under its first principal James Hamilton as Scarborough's eighth collegiate and the first composite secondary school.Aside from Cedarbrae Secondary School as the first trade-academic institution, Midland Avenue Secondary opened for students in the area who attended many secondary schools surrounding it such as King, Churchill, Porter and Thomson Collegiates.