The following text is from the original listed building designation:
TQ 6053 PLAXTOL GRANGE HILL 6/9 (north side)
1.8.52 Tree House
II
House. Late C17 with C18 facade, altered in C19. Red and blue brick with red dressings; right-hand bay with red brick ground floor and tile-hung first floor. Parapet with stone coping to plain tiled roof. Three flat-headed dormers, and stacks and one ridge stack to right. Two storeys and attic; 4 windows, slightly irregular, glazing bar sashes on first floor, 3 canted bays on ground floor. One half-glazed door to left. The house is L-shaped with C19 two-storey red brick wing to the rear.
Listing NGR: TQ6025053921 (1)

Timber framed 3-bay house incorporating formerly open 1-bay hall. (2)

Historic England archive material: BF040074 TREE HOUSE, PLAXTOL File of material relating to a site or building. This material has not yet been fully catalogued. Copyright, date, and quantity information for this record may be incomplete or inaccurate. RCH01/048/01/534 Labelled sheet of drawings of Tree House, Yopps Green, with a sketch plan of the ground-floor, a dais beam profile, and a perspective sketch showing the broach stop to a door jamb chamfer RCH01/048/02/014 Perspective views of the floors of the Tree House, Plaxtol This is figure fifteen in the book.

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

<2> Pearson, S., Barnwell, P. S. & Adams, A. T., 1994, A Gazetteer of Medieval Houses in Kent (Monograph). SKE8010.