4, 4A Casselbank Street, Edinburgh

4 and 4A Casselbank Street in Edinburgh are a pair of mirrored three-storey and attic terraced houses built around 1815, featuring classical architectural details. The exterior is made of cream sandstone with an ashlar front, although the stonework is in poor condition and has extensive plastic repairs. The ground floor is polished, while the upper levels are tooled, with coursed rubble at the rear. The houses have a base course, architraved windows on the ground floor, and a dentilled eaves cornice with a blocking course.

On the front elevation, there are Roman Doric doorpieces in the inner bays, which are rendered and topped with cornices and a blocking course. No 4 has a panelled door that is partly glazed, along with an original fanlight, and single windows above. The remaining bays also feature single windows. There are three rectangular dormers on the roof, with the outer right being tripartite and having half-piended roofs.

The rear elevation has single windows and four dormers. The houses have timber sash and case windows, mostly with 12 panes, and plate glass glazing on the ground and first floors of No 5. The centre and left dormers have replacement windows. The roof is slate with mutual stacks, and there is a downpipe recess that divides the two properties. The interior was not seen in 1992.