The following text is from the original listed building designation:
HORTON KIRBY DEAN BOTTOM 1. 5280 South Darenth The Old Farmhouse TQ 56 NE 3/170 1.6.67 II GV 2. This is two-thirds of a C15 timber-framed building, of which the south-east end has been demolished. Plaster infilling on the first floor. The ground floor has been rebuilt in red brick. The first floor of the north-west end oversails on the protruding ends of the floor joists and a carved bressumer. The eaves to the right of this, in what was orginally the centre portion, oversail on brackets. The first floor of the demolished portion would have oversailed to match the north-west end. Tiled roof with pentice behind. Casement windows. Two storeys 3 windows. Red brick chimney breast on the north-west wall laid in English Bond.
Listing NGR: TQ5872568669 (1)

Description from record TQ 56 NE 89 :
Listed building : no additional information available

Two thirds of a 15th century timber framed building, of which the south east end has been demolished. The ground floor has been rebuilt in red brick and there is plaster infilling on the first floor. Tiled roof. (2)

Historic England archive material: BF040200 THE OLD FARMHOUSE, HORTON KIRBY AND SOUTH DARENTH 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.

<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.