6 Castle Square

5-6 Castle Square is a pair of shops with dwellings above, forming a terrace. The front is roughcast, and the roofs are slate, with No 5 featuring replaced slate and No 6 retaining its original graded slates. The building has three storeys, each with a single bay. The middle and upper storeys are accented by rusticated end pilaster strips, a moulded upper sill band, and a moulded wooden eaves cornice. The windows on these storeys are tripartite 4-pane sashes set between broad colonnettes with crocket capitals. The middle-storey windows have architraves with blind segmental arches. On the lower storey, No 6 has an early 20th-century shop front, which includes a fascia with end brackets on plain pilasters, a replaced door, and a 2-light shop window with turned wood mullions and a transom. No 5 features a late 20th-century front. There are wings added to the rear.