PMH originated as the '''Perth Children's Hospital''' in 1909 after 12 years of community fundraising. The original facilities included 40 beds, an operating theatre and outpatient department. The name Princess Margaret Hospital for Children was adopted in 1949, in honour of
Princess Margaret, sister of
Queen Elizabeth II. In 1994 the organisational structure for the Princess Margaret Hospital for Children and
King Edward Memorial Hospital's merged (but not their locations). In 2002 that organisation was renamed Women's and Children's Health Service. In 2006, the two hospitals were once again separated. In 2008, the state government announced that a new children's hospital would be built to replace Princess Margaret Hospital for Children. Following the completion of the new
Perth Children's Hospital in May 2018, and the opening of its emergency department, Princess Margaret Hospital closed on 10 June 2018, and all patients were transferred to the new hospital. In March 2021 major demolition works began at the former hospital site; however two heritage-listed buildings, Godfrey House and the Old Outpatients Building were preserved as well as the hospital's boiler house and chimney stack. The demolition works were completed in October 2022. The cleared site will then become part of the ongoing
Subi East redevelopment. ==See also==