129 Princes Street, Edinburgh

129 Princes Street in Edinburgh is a building that may have been designed by James Nisbet in the late 18th century and was later remodeled by MacGibbon and Ross in 1887. The internal stair was created by Basil Spence. The building is four stories tall and was originally three bays wide, constructed from painted polished sandstone ashlar. The modern ground floor extends over the basement.

The first and second floors are framed by large Ionic pilasters and feature broad canted windows, with a tripartite window at the center and bipartite windows on the sides, all adorned with Corinthian capitals on the mullions. Both floors have entablatures, with a pediment on the first floor and a blocking course on the second. The third floor has five windows flanked by pilasters, topped with a cornice and blocking course.

The windows are timber sash and case with plate glass. The attic has a flat roof covered with grey slates.

Inside, there is a modern retail unit that retains some earlier features, including the stair designed by Spence, which is partly boxed in at the rear. There is also a saloon with detailing that is concealed by a suspended ceiling at the rear of 130 Princes Street.