The following text is from the original listed building designation:
TQ 65 NW WROTHAM C.P. ST MARY'S LANE 5/3 (west side)
The Old Farmhouse
II
Farmhouse, formerly hall-house. Early C16 with c19 and early C20 elevations. Timber-framed with red brick ground-floor, tile-hung 1st floor. Plain tiled roof, more steeply pitched in centre, with the eaves lower at each side. Ridge stack to left and on flat-headed dormer. 2 storeys; irregular fenestration of 4 windows on 1st floor and 3 on ground-floor, casements. 2 small canted bay windows on ground-floor to left. 2 doors, each side of centre, with small weather-hoods. Wing to rear at right.
Listing NGR: TQ6113358881 (1)

House of two medieval phases, the earlier of which is an upper-end crosswing of circa 1500 while the later is an early 16th century lower-end wing. Between the two is now a 17th century hall. (2)

Historic England archive material: BF040258 THE OLD FARMHOUSE, WROTHAM 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. RCH01/048/01/744 Labelled sheet of drawings of the Old Farmhouse, Wrotham, with a ground-floor plan and a perspective sketch of a crown-post

<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.