20, Holywell Street

No 20 Holywell Street is a house dating from the early 17th century, which was refashioned in the 18th century. It has a three-storey front that is cement-rendered and timber-framed, resting on a stone base. The south front features a moulded cornice at the first floor and three hipped gables beneath a Welsh slate roof, with modern red brick stacks. On the ground floor, there are two double 18th-century sash windows in modern wood frames, positioned on either side of the front doorway. The doorway has two steps leading up to it, a moulded wood frame, and a rectangular fanlight. The first and second floors also have similar double sash windows.

To the west, there is a passageway, and within the west wall of the house on the ground floor, some original early chamfered wood partitioning can be seen. The west side of the passageway is made of rubble and features a gable end above it. In September 1949, the south front was stripped and refaced with grey cement rendering on expanding metal laid over the timber-framing. Behind the old plastered front, original 17th-century two-light wood mullioned window frames were discovered at each end of the second floor, which had been left undisturbed by the 18th-century frontage; these were subsequently covered again.

The interior includes an early 17th-century staircase, plastered ceilings, an overmantel, panelling, two 18th-century moulded stone fireplaces, and some 18th-century panelling. All the listed buildings on the north side form a group.