CLAYPORT STREET 1. 5330 (South Side) No 1 (The Old Post Office) NU 1815 SE 1/42 II* GV Early C19. Two storeys, attic and basement. 1+3+1 windows. Ashlar. Central 3 bays break forward slightly with pediment over. Moulded eaves cornice; slate roof with coped verges, only left hand kneeler left. One original brick chimney on ridge and a more recent one behind pediment. Two small lights in pediment. Other windows glazing bar sashes with moulded architraves; alternate triangular and segmental pediments on 1st floor, flat pediments on ground floor where 2 right hand windows have plate glass lower sashes. Large projecting pedimented portico with doric columns, approached by steps, in centre; 6 panel door. Large semi-circular archway to left to cobbled passage with double doors. Raised window surrounds at rear.
Has been attributed to William Newton (1730–1798), but not by everyone. His work includes Howick Hall.