 The end of the 1980s also saw the complete renovation of Firth House, again changing the function of a formerly dual-use building – classrooms in Firth House were eliminated in favour of new residences for teachers and the building became entirely residential in nature.In 1992 Pickering College celebrated its Sesquicentennial (150th anniversary).Changes included the addition of a lower school (Junior Kindergarten to Grade 6) to the existing middle (Grade 7 and 8) and upper schools (at the time, Grade 9 to OAC).