Subway To Garden Street, Kilmarnock Station, Langlands Brae, Kilmarnock

The Subway to Garden Street at Kilmarnock Station, built around 1878, features a two-storey castellated entrance tower integrated into an embankment, with a single-storey, two-bay wing to the left. The building is constructed from droved red sandstone ashlar with chamfered reveals and has a heavily corbelled, castellated parapet. The wing has a continuous squared hoodmould.

On the south elevation, the entrance to the tower has paired doors with four-centred arched heads and hoodmoulds. Above, on the first floor, there is a moulded sill band with scrolled label stops and three narrow lights with haunched heads in the center. A replacement eaves course is located directly below the moulded corbels, and the castellated parapet crowns the structure. To the left, there are two rectangular windows with squared, continuous hoodmoulds, topped by the castellated parapet.

The west elevation is a blind end that is diagonally inset into the hillside, with the upper storey of the towered entrance rising behind it. Both sections feature a castellated parapet, corbelled at the tower. The north elevation is concealed by a two-storey, coursed sandstone wall that follows the gradient of the hillside and forms the rear of the property. This wall has segmental stone copes on top.

The east elevation is also a blind end, similarly inset into the hillside, with a corbelled, castellated parapet above. The adjoining rear wall is located at the far right.

The wing has eight-pane, double-glazed sash and case windows, while the first floor of the tower features single-pane, double-glazed windows with haunched heads. The doors are timber boarded with matching in-fill to the arch heads. The flat roofs are hidden behind the parapets, and the materials are not visible. The painted cast-iron rainwater goods include concealed gutters behind the parapet and downpipes at the outer angles of the towered entrance, which have decorative, moulded rectangular hoppers.

Inside, there is a semi-panelled entrance passage with a bank of windows and a timber bracketed sill on the left, looking into the single-storey bay, which is currently used as a taxi business. The interior has been refurbished, featuring a painted long passage with a flight of steps on the left that leads to the platforms or continues to the later Hill Street entrance.