Stables and Coach House at Plas Isaf including attached walled garden

The stables and coach house at Plas Isaf date from the 19th century and include an attached walled garden. The main stable range is two stories high, constructed of coursed rubble with ashlar dressings, while a range to the northeast has been largely rebuilt in brick. The buildings have a slate roof with stone copings and kneelers at the gables, along with a brick chimney. They form an L shape around a yard located at the rear of Plas Isaf, connected by a low range featuring a carriage arch.

The stables face east towards the yard. There is an off-centre door with an overlight, a circular pitching eye above it, and a multi-paned cast-iron window at ground floor level on each side. To the far left, there is a cart entrance with a boarded door and a small boarded opening above. On the far right, there are multi-paned cast-iron windows on both floors. A range attached at right angles to the right side forms the northern side of the yard, featuring a late 20th-century garage entrance and a gabled end elevation with a range of pigeon holes.

The rear elevation includes a small brick outshut and stone steps leading up to a door on the upper floor. To the right, there is a projecting range, possibly a loose box, and to the left, a projecting gabled carriage house with a wide arched entrance. Adjacent to the left is the walled garden, built of roughly coursed rubble with brick buttresses. The interior was not accessible during the 1997 survey.