4 Llewelyn Avenue

Nos 2 and 4 Llewelyn Avenue in Llandudno are a pair of reflected houses built in the 19th century. Each house has two storeys and an attic, with three bays in width. They feature gables with plain bargeboards, stucco walls, and a slate roof. The end bays project forward and are gabled, while there is a small gable above the attic window between the inner bays.

The left house has a projecting gabled bay, a small 12-pane sash window in the attic, and a two-storey canted bay window with small-pane sash windows. The right house also has a small gable in the attic, which contains a triangular-headed casement window, with a dormer in the roof slope to the left. On the first floor of the left house, there is a 12-pane sash window under a hoodmould, while the right house features a canted bay window with sash glazing that has large panes. This window is slightly misaligned with a similar window on the ground floor, where the doorway is located to the left.