The following text is from the original listed building designation:
ST ANDREW'S ROAD 1. 5278 St Andrew's House at Oakwood Hospital TQ 75 NW 8/170 II
2. 1833. Architect John Whichcord. 3 storeys ashlar. A long building with a projecting centre and 2 flanking wings. Stringcourses above ground and 1st floors. Cornice and parapet. The latter is slightly higher over the centre of the wings. Behind these higher portions are octagonal turrets on the centre of the roof. Pediment over the centre block with a clock face in the tympanum. 2-storey portico in front of this block with square columns, 3 arches on both floors in the front, those on the ground floor round-headed, those on the 1st floor square-headed, the sides of the ground floor solid, but of the 1st floor open with square-headed arches. Cornice over the whole portico. Glazing bars intact throughout the whole front and also iron grilles over the windows. Large recessed wings of 25 windows each at each end, probably a later addition. They are similar to the main wing, with end projections of 3 windows each.
Listing NGR: TQ7357655006 (1)

Historic England archive material: BF086905 Oakwood Hospital (formerly Kent County Lunatic Asylum), St Andrews Road, Barming, Maidstone Miniature Format Film Number: 149/Y

<1> English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.