The following text is from the original listed building designation:
TILMANSTONE SCHOOL ROAD TR 35 SW (North side)
4/113 The Old School
GV II
School, now house. Dated 1857. Brown brick and ragstone with fish-tail tiled roof. T-shaped plan. One storey and attic on plinth with cogged brick eaves to half-hipped roof and rear stack. Pentice-roofed oriel window on main block, and projecting 2 storey porch; with Y-tracery Gothic windows in side elevation, and pierced barge-boards and oriel over traceried half-glazed four centred arched door, with label hood over and date 1857. This cottage has similar elements but probably predates the 2 others associated with the Dene Court estate (items 3/109 and 3/112).
Listing NGR: TR3001751482

The building as the National School is shown on the Ordnance Survey map 1862-1875, then as School on the 1897-1952 maps.

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

Landmark, Ordnance Survey 1:2,500 map (OS 1st edition 1862-1875): Landmark Epoch 1 (Map). SKE30964.