It is a nine-storey building built on the site of the Old Mental Hospital, of which only the granite façade and arched verandah were preserved.

[1] It was used as a quarters for the European nursing staff of the Civil Hospital (1846-1937) until the World War II.

In 1947, this mental hospital was the only one of its type in the city when the population in Hong Kong was one and a half million.

[4] It continued to function as such until the Castle Peak Mental Hospital opened in 1961, and switched back as a day treatment centre for psychiatric out-patients until 1971.

[2] It fell into disrepair and was badly ruined by two fires, which were believed to be inadvertently started by trespassers.