36 Clyde Street West, Helensburgh

36 Clyde Street West in Helensburgh is a former bank building designed by William Petrie in 1876, likely based on designs by Peddie and Kinnear. This two-storey and attic structure showcases a Scots-Baronial style, featuring ashlar stonework at the ground level and squared, stugged, and coursed sandstone above, with ashlar dressings.

The building has base, string, and cill courses, and the ground floor windows and doorway have moulded reveals. The upper storey windows display stop-chamfered arrises with ovolo-moulding. On the south elevation facing Clyde Street, there are four bays at the ground level, including a segmental-arched doorway on the outer right with a two-leaf panelled door, a half-glazed vestibule door, and an encaustic tiled porch. Above this entrance, there is a stone balcony supported by acanthus leaf consoles, featuring a ball-finial.

To the left of the entrance are three tall segmental-arched windows, with the centre window now converted into a door. The first floor has an off-centre right window and another at the outer right. A stepped hoodmould course runs above these windows, which break the eaves with crowstepped gableheads. The left side of the building has a taller crowstepped gable bay with a canted oriel window at the first floor and a bipartite window in the attic above, along with a slightly advanced stepped gablehead.

The roof is covered with grey slate and features stacks at the gables. The original rainwater goods are still in place, although there is a variety of modern glazing, including uPVC in the first floor windows.