The building was extended from 1926 to increase capacity to 75 beds;
Princess Arthur of Connaught opened the new wings on 30 April 1934, and nurses' accommodation was also built. During the
Second World War the nurses' home was struck by a
V-1 flying bomb on 14 August 1944, the
London County Council Bomb Damage Map (1945) shows the buildings were damaged and 'doubtful if repairable', but thankfully no-one was injured. The Hospital joined the
National Health Service on its founding in 1948, under the Battersea and Putney Group Hospital Management Committee, part of the
South West Metropolitan Regional Hospital Board. The Mackenzie Morris Ward, named after a popular matron of the Putney Hospital and the Sydney Turner Ward, opened in 1961 and 1962, along with a Casualty and Outpatients departments, there were plans to develop the hospital further but these were later abandoned. After the
National Health Service Reorganisation Act 1973 the hospital was transferred to the Roehampton District Health Authority in 1974, part of the South West Thames Regional Health Authority. == Closure ==