Walls of former Lord's Garden at rear of Nantclwyd House

The walls of the former Lord's Garden at the rear of Nantclwyd House are Grade II* listed. These walls enclose a large sub-rectangular garden and run at right angles to the garden of Nantclwyd House. The northern wall is made of rubble stone, approximately 1 meter high, and is covered in vegetation. At the northeast corner, this wall connects to the gazebo located behind Nantclwyd House.

The long western wall, also constructed of rubble stone, stands about 2 meters high. To the south, this wall steps inward at an angle and features a doorway that may date from the 18th century. This doorway has a boarded door set beneath a segmental arch made of stone voussoirs and is accessed via a flight of stone steps. South of the doorway, the wall steps down to about 0.6 meters in height and is built of a different material, topped with semi-circular concrete coping. This section curves around the southwest corner to align with the footpath that borders the Ruthin Castle Hotel. The southern boundary acts as a retaining wall and connects to the garden wall of No 20 Castle Street at the southeast corner.

The eastern wall is made of red brick and features narrow brick buttresses, with some surviving stone coping. This wall forms a boundary with the rear gardens of houses on Castle Street and connects to the western wall of the garden behind Nantclwyd House towards the northeast.