The institution started fairly small but over the years additional villas were added, and by 1939 it had 400 beds, and became Borocourt Hospital. It was near Reading in Berkshire and took people from Buckinghamshire, Berkshire and Oxfordshire.
By the time those in power realised that such a large institution, with not enough staff, was not the way to care for such vulnerable people a lot of damage had been done as can be seen in the Youtube Video above. It was part of the ITV series Silent Minority which shone a light on the care or lack of it in such institutions.
Anyway it was closed as were most such institutions in the 1990s. The name Borocourt was dropped and it reverted to the name of the original Victorian Mansion, Wyfold Court luxury housing.
Thankyou again to The Mental Health Timeline for the date and details of the 1913 act.