The following text is from the original listed building designation:
1. 5275 KING STREET (North East Side)
Outhouse to south of No 21 TR 3358 1/100A 19.5.50.
II GV
2. A timbered outhouse of which the ground floor of the west wall has been cut away to form a garage. Between this and the house is a wall containing an iron studded door.
Nos 21, 27 and 29 and Gas Lamp, Outhouse with Nos 54 to 60 (even) High Street form a group.
Listing NGR: TR3315658043

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