The asylum complex is an example of the E-plan lunatic asylums based on the model 1850s asylum in Colney Hatch, England, which itself was based on the 1830 design of Hanwell Asylum in London.
 Kew was also considered a barracks style asylum due to its perceived resemblance to stockades or gaols.
 The buildings are constructed from oversize bricks, made from local clay which was quarried on-site.
The bricks were then rendered with cement.
 The central administration block is three storied with a mansard roof and cupola.
 Two storeyed ward wings extend to each side, one for each sex.
 Each wing has a four storey, mansard-roofed tower, which contained water tanks.
 The ward wings were surrounded by courtyards lined with iron columned verandas, many of which were retained when the complex was redeveloped.
 Internally, the dormitories had 14 ft (4.3 m) ceilings and brightly coloured walls with the beds aligned in neat rows.
 The floors were of timber, principally so they could be scrubbed.

The primary access to the complex was from a tree-lined drive from Princess Street (now known as "Main Drive") culminating in an elliptical carriageway in front of the main building.
 A second drive (now known as "Lower Drive") extended from Princess Street to the rear gates of the asylum.
This road was commonly used for deliveries to and from the asylum via the rear gatehouse.

While Kew's plan and detail are similar to its sister asylums at Ararat and Beechworth, the Kew asylum is much larger with the front buildings and towers more impressive architecturally.
 Kew's distinctive towers and mansard roofs make it one of the most prominent architectural landmarks in Melbourne and is clearly visible on the eastern skyline.
The asylum complex is an example of the E-plan lunatic asylums based on the model 1850s asylum in Colney Hatch, England, which itself was based on the 1830 design of Hanwell Asylum in London.  Kew was also considered a barracks style asylum due to its perceived resemblance to stockades or gaols.  The buildings are constructed from oversize bricks, made from local clay which was quarried on-site. The bricks were then rendered with cement.  The central administration block is three storied with a mansard roof and cupola.  Two storeyed ward wings extend to each side, one for each sex.  Each wing has a four storey, mansard-roofed tower, which contained water tanks.  The ward wings were surrounded by courtyards lined with iron columned verandas, many of which were retained when the complex was redeveloped.  Internally, the dormitories had 14 ft (4.3 m) ceilings and brightly coloured walls with the beds aligned in neat rows.  The floors were of timber, principally so they could be scrubbed.
The primary access to the complex was from a tree-lined drive from Princess Street (now known as "Main Drive") culminating in an elliptical carriageway in front of the main building.  A second drive (now known as "Lower Drive") extended from Princess Street to the rear gates of the asylum. This road was commonly used for deliveries to and from the asylum via the rear gatehouse.
While Kew's plan and detail are similar to its sister asylums at Ararat and Beechworth, the Kew asylum is much larger with the front buildings and towers more impressive architecturally.  Kew's distinctive towers and mansard roofs make it one of the most prominent architectural landmarks in Melbourne and is clearly visible on the eastern skyline.
Kew Asylum