Capel Pont yr Arw with attached school room

This is a gable entry chapel with an attached gabled school room and chapel house, built facing south. The chapel dates to the 18th century and is constructed of rendered rubble with freestone dressings, moulded eaves cornices, and angle quoins. It has a hipped slate roof. The front elevation, facing east, features outer doorways flanked by two high-set windows, which are linked by a continuous sill band. The doorways have moulded architraves and pediments supported on scrolled brackets, while the windows have similar but simpler architraves and are 12-pane sashes. The double doors have diamond-studded panels. The south return and rear elevations are simpler, with 8-paned windows.

The attached school room, to the north, also has a gable entry, with a steeply pitched facade. Its rendered elevation features moulded eaves and stressed angle quoins. A central gabled porch provides access, alongside a side entrance and a rectangular window with margin panes. Tall, round-arched sashes with marginal glazing, within moulded architraves, flank the porch. Above the porch is a stepped tripartite window of small-paned sashes, with a circular ventilation grille above.

Inside the chapel, the entrance doors lead into tongue and grooved panelled vestibules to either side of the "set fawr" (main assembly area). The "set fawr" is rectangular, with side entrances, and raised by one step; the facing panels have raised central bosses. The pulpit is rectangular, with an advanced central bay raised by three steps. It has side entrances with stick balusters and shaped newel posts. The facing panels of the advanced bay contain trefoil-headed recesses under a scalloped frieze, flanked by scrolled brackets supporting the reading desk. The flanking panels have similarly detailed ogee-headed recesses. Recessed plaster panels with wooden surrounds are located behind the pulpit; the lower part of which has tall rectangular recesses flanked by scrolled brackets supporting shaped pillars and a pediment featuring a circular emblem at the centre. The "set fawr," pulpit and pews are constructed of pitch pine, with the pews arranged in three ranks, raking, the central section being staggered. The walls are plastered, with moulded coving. The roof consists of four bays, each with three recessed panels, moulded dividers, and ornate floriate light bosses.

The school room’s roof is composed of three bays, each with a central floriate ventilation grille, moulded dividers, and tongue and grooved panels. The bays are articulated by arched braces sprung from shaped corbels. The plastered walls are panelled in the lower half with tongue and grooved panelling. A panelled door with an open pediment leads to the adjacent chapel house.