During its 120 years of operation, Kew's title changed numerous times.
 This has been in response to society's changing views towards the treatment and care of mentally ill persons; improvements in treatment leading to better health outcomes and changes in the Victorian Government's various Health Acts.
  From its establishment until 1905 the institution at Kew was known as an asylum – a title which emphasised its function as a place of detention rather than a place where people could possibly be cured.
 Kew was also for a short period known as the Metropolitan Lunatic Asylum at Kew, possibly to differentiate it from its sister country asylums at Ararat and Beechworth.
During this period, all people committed to the asylum were termed 'inmates' rather than patients – again emphasising detention rather than cure.

The Lunacy Act of 1903 changed the title of all Victorian "asylums" to "hospitals for the insane" however this Act didn’t come into operation until March 1905.
From this time onwards, inmates began being referred to as patients.
The Mental Hygiene Act of 1933 again altered Kew's title to "Kew Mental Hospital".
The move from 'asylum' to 'hospital' and 'inmate' to 'patient' also reflected the increased involvement of the medical profession in the management and treatment of mental illness.

After World War II there was a period of significant change in the treatment and prognosis for people with a mental illness.
Drugs such as lithium carbonate (discovered in 1948 by Australian psychiatrist John Cade) and chlorpromazine (discovered in 1950's) lead to improvements in treatment.
 Thus many people with a mental illness could in many cases be treated in hospital for a shorter period and return to the community.
The Mental Health Act of 1959 designated hospitals providing short-term diagnosis and accommodation as "psychiatric hospitals".
Therefore, any institution could have a section designated as a mental hospital for long-term or indefinite hospitalisation and a section designated as a psychiatric hospital for short term diagnosis and treatment of acute psychiatric illness.

In 1962 the decision was made to no longer house acute or short-term patients at Kew and therefore it was formally proclaimed a Mental Hospital under the Mental Health Act of 1959.
  Up until this time, Kew Mental Hospital was still colloquially known as "Kew Asylum".
 In the 1960s Kew began to be known as "Willsmere", however some authors state the name change to "Willsmere" was later.

In January 1982 three wards of Kew Mental Hospital were proclaimed a Psychiatric Hospital under the provisions of the Mental Health Act 1959.
These wards were then known as the Willsmere Unit and were established to receive and accommodate short-term acute patients.
During its 120 years of operation, Kew's title changed numerous times.  This has been in response to society's changing views towards the treatment and care of mentally ill persons; improvements in treatment leading to better health outcomes and changes in the Victorian Government's various Health Acts.   From its establishment until 1905 the institution at Kew was known as an asylum – a title which emphasised its function as a place of detention rather than a place where people could possibly be cured.  Kew was also for a short period known as the Metropolitan Lunatic Asylum at Kew, possibly to differentiate it from its sister country asylums at Ararat and Beechworth. During this period, all people committed to the asylum were termed 'inmates' rather than patients – again emphasising detention rather than cure.
The Lunacy Act of 1903 changed the title of all Victorian "asylums" to "hospitals for the insane" however this Act didn’t come into operation until March 1905. From this time onwards, inmates began being referred to as patients. The Mental Hygiene Act of 1933 again altered Kew's title to "Kew Mental Hospital". The move from 'asylum' to 'hospital' and 'inmate' to 'patient' also reflected the increased involvement of the medical profession in the management and treatment of mental illness.
After World War II there was a period of significant change in the treatment and prognosis for people with a mental illness. Drugs such as lithium carbonate (discovered in 1948 by Australian psychiatrist John Cade) and chlorpromazine (discovered in 1950's) lead to improvements in treatment.  Thus many people with a mental illness could in many cases be treated in hospital for a shorter period and return to the community. The Mental Health Act of 1959 designated hospitals providing short-term diagnosis and accommodation as "psychiatric hospitals". Therefore, any institution could have a section designated as a mental hospital for long-term or indefinite hospitalisation and a section designated as a psychiatric hospital for short term diagnosis and treatment of acute psychiatric illness.
In 1962 the decision was made to no longer house acute or short-term patients at Kew and therefore it was formally proclaimed a Mental Hospital under the Mental Health Act of 1959.   Up until this time, Kew Mental Hospital was still colloquially known as "Kew Asylum".  In the 1960s Kew began to be known as "Willsmere", however some authors state the name change to "Willsmere" was later.
In January 1982 three wards of Kew Mental Hospital were proclaimed a Psychiatric Hospital under the provisions of the Mental Health Act 1959. These wards were then known as the Willsmere Unit and were established to receive and accommodate short-term acute patients.
Kew Asylum