Glossop Gas Company offices, now commercial premises. 1845, converted C20. Rock-faced coursed millstone grit with ashlar dressings, vermiculated quoins and Welsh slate roof. EXTERIOR: 2 storeys. Street front has symmetrical 5 window range. Central doorway with stone pilasters and pediment, metal door with rectangular overlight, flanked by 2 tall roundheaded windows with vermiculated keystones and C20 windows with horizontal glazing bars. Above 5 similar windows. Ashlar band between floors inscribed:- 'GLOSSOP GAS WORKS ESTABLISHED AD 1845'. Moulded cornice and cast-iron rainwater goods. Left and right returns topped with pediments, each with 2 similar round headed windows to each floor with plain keystones. Rear elevation has symmetrical 5 window range. Slightly off-centre round headed doorway with pilaster surround and boarded fanlight, to right small round headed window. Either side 2 round headed windows with keystones and C20 windows with horizontal glazing bars and boarded fanlights. Above tall central round headed window with margin light glazing flanked by 2 round headed windows similar to those below. INTERIOR: has wooden staircase with turned balusters to entrance hall and panelled doors to ground floor. (Formerly Listed as: ARUNDEL STREET (West side) Glossop Gas Works Offices)