15 Station Street, including gates to the south

15 Station Street is a former warehouse built in the mid-19th century, now used as offices. The building features an ashlar-sandstone façade, with coursed hammer-dressed sandstone on the side elevation and slate roof coverings.

It has an L-shaped plan, with the main elevation facing east onto Station Street. The building stands four storeys high above a basement and consists of six bays. Architectural details include a moulded eaves cornice and continuous sill bands. The ground floor has a combination of modern and historic one-over-one sash windows, while the upper floors feature multi-paned casements with a central-opening light. The two northernmost windows on the third floor are blind. The entrance door is composed of six moulded panels and is topped by a rectangular fanlight set in a moulded wooden frame. To the south of the entrance is a round-arched carriage entrance, which has a vermiculated keystone, moulded imposts, and spur stones that have since been removed.

Additionally, there is a set of cast-iron gates with fleur-de-lys finials attached to the south, positioned between this building and number 13. Inside, a modern staircase has been installed on the north side of the entrance.