The following text is from the original listed building designation:
TQ 54 SW BIDBOROUGH MARLPIT CORNER
3/25 Boundary wall to Swaylands School along the Penshurst Road and Marlpit Corner
GV II
Boundary wall. Circa 1880s. Roughly-dressed sandstone brought to course flanking the entrance, the other walls brick with a dentil moulding below the coping.
Plan: The walls extend along the Penshurst Road and round Marlpit corner to the east, curving inwards at the entrance to the drive to Swaylands School and the entrance to the stable yard.
Exterior: At the main entrance the sandstone walls are low with stone coping, crowned with iron railings with a barleysugar top rail on standards with wrought iron scrolls. Squat octagonal gate piers with 2-tier pyramidal coping. The entrance walls ramp up to taller brick walls which curve inward at the stable yard entrance to the west where there is a pair of C19 timber gates.
Group value with Swaylands School, separately listed in Penshurst parish.
Listing NGR: TQ5561443712

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