The following text is from the original listed building designation:
STROOD GUN LANE TQ 7369 SE 6/276 No 20 II Former charnel house (to St Nicholas graveyard). Dated 1856. Red brick, ragstone rubble; Welsh slate hipped roof. Italianate. 2 storeys to former churchyard, single storey to Gun Lane. Rubble plinth (ground floor towards churchyard) with brick dressings. Roadside elevation: 3 blank recessed panelled bays with pilasters and a recessed round-headed entrance with raised and fielded panel doors. S return carries date plaque, the N has an end stack with double shaft. Churchyard elevation with 4 round-headed 1st floor windows (boarded up at time of re-survey, February 1989), and central entrance below flanked by tall windows, all under round headed arches.
Listing NGR: TQ7354769373

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