Rubble-walled rear service drive to west of Glynllifon House

The rubble-walled rear service drive located to the west of Glynllifon House dates back to the 19th century. The walls are approximately 4 meters high and enclose a service drive that is about 4 meters wide, which ascends eastward towards the kitchen court at the back of the house.

The drive features a looping path that bends to the right and then to the left. At the midpoint of this corner, there is a dressed stone archway with lamp brackets leading into the courtyard in front of the stable block. To the west of this archway is a smaller archway that provides access to a narrow yard behind the stables, which was likely also accessible through a now-blocked archway in the screen wall at the western end of the service drive.

The wall on the north side slopes down to about 1 meter in height before rising back up to full height, where it meets another rubble wall at a skewed angle. This further wall borders a parallel track leading from the kitchen gardens to the courtyard by the Palm House and up to the accommodation above the kitchen court. The wall extends right up to the house on both sides.

Additionally, the drive is intersected midway by a dated iron footbridge that is listed separately.