18, Sadler Street

No. 18 Sadler Street is a house dating back to 1451, with significant remodelling in the 18th century and 19th-century facades. It is part of a short row and was built using local stone, now roughcast, with a Welsh slate roof, a coped gable to the south, and brick chimney stacks.

The exterior is two storeys with attics, and the window placement is random. A central six-panel door is sheltered by a timber doorcase featuring Doric pilasters and an entablature. Plain sash windows flank the door on the ground floor, with two more plain sash windows above, one centred over the left ground-floor window and one over the front door. An oriel window with a 4+12+4 pane sash unit is positioned above the right-hand pair of ground-floor windows, beneath a flat roof. A dormer window with a segmental curved roof and a 2-light casement window with glazed cheeks sits above the oriel. The rear elevation, overlooking Cathedral Green, has a triple-roll clay tiled roof, a chimney stack on a stone base, a 20th-century glazed door with fanlight to the left, a triple-unit sash window with a wider centre unit, and two 4-pane sash windows positioned at different levels above. A pitched roofed dormer with a 4-pane sash window is also present on the rear roof. Traces of a medieval stone string course, pierced by first-floor windows, are visible.

The entrance hall features a chamfered crossbeam and fielded four-panel doors. The north-west ground-floor room contains a four-panel ceiling with 15th-century moulded beams, 18th-century dado panelling, and window reveals with shutters. The south-west room has a four unequal-panel ceiling with chamfered crossbeams without run-out stops, along with 18th-century window reveals and shutters. The south-east room is similar, with a chamfered ceiling beam. The staircase has turned balusters, newels with knob caps—likely dating to around 1760/80—and a blocked four-centre arched doorway in the spine wall, originally part of the medieval churchyard wall.

On the first floor, the north-west room has a two-bay ceiling with 15th-century moulded beams and a later 18th-century fireplace. Other rooms feature plain chamfered beams, although the south-west room has 18th-century mouldings added to its two-bay ceiling. The south-east room has a 18th-century cornice and fireplace. The attic rear room has an 18th-century door and a chamfered crossbeam. The front attic contains a five-bay arched collar-trussed roof with two ranks of purlins, the lower rank having curved arched windbraces to most bays, with most timbers chamfered.

The house, along with No. 20, represents part of the 1451 "new Works" commissioned by Bishop Beckynton.