Premises of David B.Ivison (Chartered Accountant)

The premises of David B. Ivison, a chartered accountant, is a converted bastle house that dates from the late 16th to early 17th century. It underwent alterations in 1740, as indicated by a dated door lintel, and further changes in the late 19th century. The building is constructed of rubble, with the front rendered, and features a Welsh slate roof and a stone chimney stack.

It is two stories high with a two-window street front and has a low rendered plinth. The entrance is off-centre, featuring a partly-glazed four-panel door set in a chamfered stone surround. The door lintel displays a sunk shaped panel with raised letters reading "WBE 1740". To the right of the door is a small boarded window, which may have been a fire window. To the left, there is an early 19th-century four-pane shop window with a plain pilaster surround, a projecting sill, and a fascia with a bracketed hood. Above this, there are two replaced casements set in deep reveals.

The roof has a coped left gable and a left end stack with a water table and top ledge. There is a blocked gable-end doorway with massive, roughly-shaped alternating jambs and a lintel, located through an archway on the left return. The rear of the building features a tall boulder plinth and scattered openings. Inside, there is a fragment of a partly-rebuilt wooden winder stair against the rear wall, and the first-floor room has wany ceiling beams that are likely re-used rafters from the original roof.