Sunday School to Capel Heol Awst

The Sunday School on Capel Heol Awst is a building constructed in unpainted roughcast with a slate hipped roof and a moulded eaves cornice. It stands two storeys tall, featuring a four-bay facade facing Lammas Street and a five-bay facade towards the courtyard. The windows are leaded and set in moulded surrounds, with cambered heads on the ground floor and arched tops above. The ground floor windows are divided by broad banded piers, which are complemented by a string course and plinth below, and a dentilled cornice above that is broken forward over the piers. The first floor has arched lights arranged in an arcade supported by broad pilasters with moulded caps and arches, with blank roundels in the spandrels. The eaves cornice is moulded and coved, and the building features cast iron rainwater goods.

The Lammas Street facade includes a recessed entrance bay on the far left, styled to match the rest of the building. This entrance features a tall arched opening with paired arched panelled doors beneath a crescent-shaped fanlight. Small roundels in the spandrels display raised numerals 18 to the left and 88 to the right. Above the entrance is an arched window and an eaves cornice similar to that on the main front. A plaque on the facade notes that John Ross, a printer and publisher who lived from 1727 to 1807, resided in a house on this site.

Inside, there is a three-sided gallery with curved angles supported by nine square panelled cast iron pillars. Decorative ironwork runs along the top of horizontal panels, separated by fluted pilasters. The gallery projects on brackets and features six-panelled timber doors. The gallery stair has turned balusters, and the arrangement is asymmetrical with raked seating at the rear and right over the arcade, which is supported by square fluted columns with scrolled pediments. The left side of the gallery has matching arcading to the exterior wall. The ceiling is adorned with a wide stucco cornice and a plain central rose.