3 The Diamond, Ballycastle, Co Antrim, BT54 6AW

This is a two-storey building situated on the corner of The Diamond and Market Street in Ballycastle. The building is two bays wide facing The Diamond and seven bays wide facing Market Street. It was likely rebuilt in the 1990s, although a building is shown on an Ordnance Survey map of 1832, and the present structure appears to follow the original form, though with significantly altered openings, with construction likely occurring between 1820 and 1839. The design is attributed to James McCormick. The building sits within the Ballycastle Conservation Area.

The Diamond façade features a ground floor shopfront with a large single-pane display window incorporating pilasters and a four-panelled shop door with a fanlight bearing painted lettering. A cornice has stopped ends. Above, there are two two-pane PVC windows within a moulded architrave. A painted frieze runs under the gutter, with a half-round downpipe alongside a smooth, rendered and painted wall, and a shallow plinth. The window cill of the display window is low, cutting into the plinth. The corner of the building is chamfered, with a display window and two-pane PVC window with architrave on the ground floor, and the name fascia wraps around the corner.

The Market Street elevation has a ground floor with a gable windowless bay to the right. Above it are two windows matching those on the Diamond façade. Painted rusticated quoins are visible at the left corner. The roof is hipped and slated. The return elevation along Market Street includes a ground floor window matching the design previously described, an entrance with a two-pane fanlight, a wide eight-pane display window with moulded plastic architrave, and a four-panelled door with glazed two-pane side screens and a fanlight. A further display window above the entrance continues the design. The first floor mirrors the ground floor openings, with two two-pane windows, a double-light two-pane window, a wider four-pane window above the entrance with a gablet, and another two-pane window. The wall finish is smooth rendered and painted with a shallow plinth. A half-round gutter is fixed to a timber fascia and there are several downpipes. Rusticated quoins are also painted. The gable on the Market Street elevation has a ground floor door in the corner and a central four-pane vertical window above it. Walls are rendered and painted with quoins. Buildings behind this structure are set back from the footwalk. The corner building, with its chamfered angle, follows the existing building line.