The following text is from the original listed building designation:
ASH TR 26 SE WESTMARSH 2/95 Uphousden Farm House 11.10.63 GV II
House. C15, clad late C17. Timber framed and clad with red brick with plain tiled roof. Two storeys on plinth with plat band and roof hipped with gablet to right and with shaped gable to left. Stack to centre right. Irregular fenestration of 4 wooden casements on first floor, and 2 glazing bar sashes and 2 wooden casements on ground floor, and boarded door to right with flat hood on brackets. Half-hipped rear wing also with plinth and plat and basement. Interior: reported crown post roof, the hall of 2 full bays (See Igglesden, vol.18, p.69 and illus. P.64).
Listing NGR: TR2732660989 (1)

Single ended Wealden house with formerly open 2-bay hall and long lower end. The house was extended to the south in the early 18th century and given a brick front wall and a Dutch gable. (2)

Historic England archive material (3)

<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.

<3> Historic England, Archive material associated with Uphousden Farm, Ash, Listed Building (Archive). SKE56479.