The following text is from the original listed building designation:
KING STREET 1 1380 (North Side) No 23 TR 3571 SW 2/10 15.12.70.
II GV
2. A fine early C19 house, originally the brewer's house to Cobbs' brewery. It was here that William Pitt the Younger was entertained. 2 parallel ranges. 3 storeys and basement stock brick. Stone parapet. 5 sashes with vertical glazing bars only. Stone cills. Stringcourse above ground floor. Fine central Adamesque doorcase. Cornice of modillions and frieze having a swag pattern with oval paterae at the ends. 2 stylizied composite reeded pilasters. Panelled reveals. Semi-circular fanlight with glazing bars. Underneath is a band of reeding and paterae. 6 panelled door with fielded panels, 2 now missing. Interesting doorknocker. 4 restored steps and 2 interesting scrolled footscrapers. Plinth. Rear has rainwater head. The interior contains the original mahogany staircase with wrought iron scrolled balusters, and the ground floor retains traces of a frieze of cherubs swags and cornucopia.
Nos 15 to 35 (odd) and No 91 Trinity Square form a group
Listing NGR: TR3545871096

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