Mrs Carolyn Hauff AM became the third principal in 1991, retiring in 2006. Mrs Hauff saw the refurbishment and expansion of classrooms and boarding house during the 1990s. In 1997, Clayfield's Physical Education Centre was built on the former site of the Savoy Theatre, and named after Ida Kennedy, the schools second principal. The development included a tunnel under Sandgate Road providing safe access to the east. Clayfield College continued expansion to the east of Sandgate Road by buying the Turrawan Private Hospital and converting it into a new boarding facility.