Bryn-y-Neuadd Farmhouse, including attached dairy

Bryn-y-Neuadd Farmhouse, which includes an attached dairy, is a two-storey house constructed from dark local rubble with buff freestone dressings and a slate roof. The central section features a pinnacled gable facing approximately south, with a Gothic-arched window on the first floor and a rectangular bay window below. To the left of the gable, there is a tall projecting chimney with paired octagonal stacks, followed by a cross wing that houses the dairy. The porch at the angle has a low parapet adorned with quatrefoil decoration and a Gothic-arched doorway with splayed hollow jambs. The west gable, also pinnacled, displays stonework with the initial 'P' for Platt. To the right of the main gable, set well back, is another cross wing featuring a gabled dormer with a Gothic window and a pinnacled gabled porch with a Gothic-arched entrance. There is a corbelled chimney on the right gable end. Further to the right, set back, is an additional block with a gabled dormer (Gothic window) and a two-light square-headed window on the ground floor, along with another chimney on the right gable end. The rear of the house faces an agricultural courtyard and is styled similarly. There is a small yard with outbuildings behind the house.

Inside, the ornamental dairy is located at the west end of the house. It has a rectangular plan with a porch at the front (south) and features a high coved and panelled ceiling with polychrome painted decoration in a Renaissance style, including heraldry and symbols of Wales such as the Prince of Wales feathers and leek. Round ventilators are present, along with an egg and dart cornice. Work tables made of veined white Italian marble on marble baluster legs are positioned against the walls. Behind the tables, blue and white 17th-century Delft-style tiles, many depicting figurative Biblical scenes, are installed. The dairy floor is made of small black and red quarry tiles, while the porch floor is more ornate.

The farmhouse is graded II* due to the exceptional quality of the dairy interior.