66, North Street

66 North Street is a mid-19th century house that has been converted into offices. It is constructed from ashlar magnesian limestone and features a combination of cement-tile and Welsh slate roofs. The building is two stories high and has three bays, with a rear wing at the center.

At the front, there is a plinth and a later part-glazed door with an overlight that has crossed glazing bars, set within a corniced wooden doorcase. This is flanked by plain 20th-century casement windows that have projecting stone sills and flat arches. On the first floor, there is a central sash window with glazing bars, flanked by 16-pane sash windows, all featuring projecting stone sills and flat arches. The left side has a stone end stack, while the right side has a rendered end stack. The rear wing has been significantly altered and has a Welsh slate roof. The adjoining buildings on the left and No 66A, which is part of the rear wing, are not considered to be of special interest.