11-13 Black Bull Street, Duns

11-13 Black Bull Street in Duns is a narrow, two-storey and attic shop building from the later 19th century, featuring a house at the rear and above. The structure is made of cream rubble sandstone, with a painted ashlar front elevation.

The northeast elevation facing Black Bull Street showcases a Corinthian shopfront on the ground floor. It has columns framing a modern door with a plate glass fanlight in the center, flanked by two-pane plate glass shop windows. The design includes corner pilasters, a base course, a cornice that projects at the center, and a blocking course. The first floor is blank in the center, with windows in the outer bays, and features an architrave, cornice, and blocking course. At the center of the roof, there is a tripartite timber dormer with glazed sides and a tall piended roof that has swept eaves and scalloped flashing, although the finial is missing.

The southeast side elevation consists of three bays, with the left bay slightly advanced and featuring a window at ground level. The center bay has an ashlar doorcase in a re-entrant angle, with a block dentilled cornice and a deep-set modern door topped with a four-pane rectangular cornice, along with a window above. The right bay is blank and includes a wallhead stack.

The southwest rear elevation is irregular with two bays and a gabled design. At ground level, there is a door to the right and a later timber canted window to the left. Both bays have windows on the first floor and in the gablehead, with an apex stack. The building features 12-pane timber sash and case windows, with plate glass above the side door. The front has a piended roof covered in grey slates, with brick stacks and octagonal cans.