The following text is from the original listed building designation:
HORTON KIRBY HORTON ROAD 1. 5280 (west side) Court Lodge TQ 56 NE 3/190 II GV
2. This was originally Horton Castle and the majority of the site lies to the south of the existing house. The main portion of the south end dates from the C18. Two storeys faced with rough plaster. Hipped tiled roof. Three sashes with glazing bars intact. C19 porch. The portion to the north of this, now the centre portion is probably older. Two storeys faced with plaster. Tiled roof. Two casement windows. At the north end is a C19 addition of one storey and 2 windows in painted brick with a slate roof and sash windows without glazing bars. The house was considerably altered by Mr George Smith the surveyor who also altered the church tower.
Listing NGR: TQ5610868590 (1)

There is a detailed listing of ownership of the house in the Horton Kirby And South Darenth Local History Society publication. The present owner belives the site may have been built on a Roman villa site and it is possible a villa site may be near to this site. The house itself has been considerably altered; firstly a Norman castle, then a medieval farmhouse, later 'modernised' by the Georgians with a façade and a main entrance facing the river. (2)

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

<2> Horton Kirby and South Darenth Local History Society, 2009, Court Lodge, Horton Kirby (Unpublished document). SKE17177.