Description from record TQ 65 NW 51 :
(TQ 63205677) Great Comp (NAT) (1) TQ 65 NW PLATT COMP LANE 2/38 (south side) 1.8.52 Great Comp II* House. Mid C17. Limewashed brick on wide plinth with mullioned cellar lights and some stone dressings. Two moulded strings, inconsistent in level and not carried across entire front, one on 2 levels above ground floor, the other below eaves. Moulded projecting eaves with bracketted gutter. Plain tiled roof with large end stacks and 4 hipped dormers. Two storeys; 4 window front, slightly irregular. Stone mullioned casements, some with transoms. Gabled porch off-centre to left with margin light door, both C19. Rear elevation altered during C19, with some modern extensions. Interior. Little remains of the original interior, except chamfered beams in one ground floor room. Early C17 panelling and the later C17 staircase brought in, the latter from a farmhouse in Offham. Interestingly the rear of the left-hand end stack in the cellar is buttressed by a large stack of unused window mullions. Blocked up brick windows in the sides of the house may be of Tudor date, and possibly confirming that the house was a remodelling of a wing of an earlier and larger house. Some evidence of foundations of other wings has been found. (2) Great Comp. Lofty brick range of c. 1600, perhaps a fragment of a larger house. Mullioned and transomed windows, linked together by hoodmoulds continuing as string courses, un-Kentish idiosyncrasy. (3)

The following text is from the original listed building designation:
TQ 65 NW PLATT COMP LANE 2/38 (south side)
1.8.52 Great Comp
II*
House. Mid C17. Limewashed brick on wide plinth with mullioned cellar lights and some stone dressings. Two moulded strings, inconsistent in level and not carried across entire front, one on 2 levels above ground floor, the other below eaves. Moulded projecting eaves with bracketted gutter. Plain tiled roof with large end stacks and 4 hipped dormers. Two storeys; 4 window front, slightly irregular. Stone mullioned casements, some with transoms. Gabled porch off-centre to left with margin light door, both C19. Rear elevation altered during C19, with some modern extensions. Interior. Little__remains of the original interior, except chamfered beams in one ground floor room. Early C17 panelling and the later C17 staircase brought in, the latter from a farmhouse in Offham. Interestingly the rear of the left-hand end stack in the cellar is buttressed by a large stack of unused window mullions. Blocked up brick windows in the sides of the house may be of Tudor date, and possibly confirming that the house was a remodelling of a wing of an earlier and larger house. Some evidence of foundations of other wings has been found.
Listing NGR: TQ6319156760 (4)

<1> OS 1:2500 1978 (OS Card Reference). SKE48221.

<2> DOE (HHR) Dist of Tonbridge and Malling, Kent May 1984 27 (OS Card Reference). SKE40414.

<3> Bldgs of Eng W Kent & the Weald 1980 462 (J Newman) (OS Card Reference). SKE37899.

<4> English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.