National Westminster Bank

The National Westminster Bank is a classical two-storey building featuring scribed stucco fronts with a plinth. It has a slate roof, two brick chimney stacks, and wide boxed eaves. The front facade is asymmetrical with four windows, where the outer bays are advanced, forming the ends of the cross ranges. The left bay is hipped, while the right bay is pedimented and has a plain cornice. The windows are recessed sash windows, primarily 12-pane, with a stepped window recess at the center next to a shouldered doorway that has a modern door.

The left-hand elevation is nearly symmetrical with three windows on each side, including the front to Gwar-y-Castell. This elevation features an advanced and pedimented center bay, with another advanced center bay on the ground floor to the right. The sash windows are consistent with those on the front, and there is an 8-pane window along with a band course above an arched doorway leading to Gwar-y-Castell. This doorway has a keystone in the architrave with an impost band and a recessed four-panel door.