Maengwyn Chapel (Welsh Presbyterian Church)

Maengwyn Chapel, a Welsh Presbyterian Church, is a Gothic building with an asymmetrical and unique three-bay front elevation that steps down from left to right. It is constructed of snecked rubble with freestone dressings and features slate roofs. To the left, there is a low tower with a saddleback roof, which has a trefoil punched roundel above a three-light window with a continuous label. Below this, a cusped lancet window has a label that extends to the right and rises to connect with the label over a central wheel window. This label continues to the division between the central gabled bay and the lower right-hand bay, which is marked by a stepped buttress. A string course at cill level runs across the central and left-hand bays, wrapping around the buttress and stepping down to form the cill for the cusped lancet on the right. Above, there is a dentil stone cornice and a hipped cross roof. The central and end doorways feature Caernarvon arch heads with foliage carving in the tympani, and the central boarded door is flanked by arches of equal width over narrow lancets. The side elevations have five bays with 2-light triangular-headed Gothic windows and a basement. The rear has slate hanging and a trefoil punched circular window.

Inside, the chapel features a panelled gallery front supported by plain iron columns and open roof trusses.