NE, SE and SW Walls, Gatepiers and Railings enclosing Landough Castle and Gatehouse

The walls, gatepiers, and railings enclosing Landough Castle and the gatehouse date from the 15th century to the later 19th century and have been extensively rebuilt and modified. On the south side of the enclosure, northeast of the gatehouse, there is a tall pair of stone gate piers topped with ball finials, which flank a tall pair of 19th-century iron gates featuring arrow-headed finials. Adjacent to these, on the northeast, are the foundations of a stone dwarf wall and a screen of tall 19th-century iron railings with arrow-headed finials, positioned slightly south of the existing footings of the former 15th-century southeast courtyard wall. The dwarf wall and railings extend northeast to the 15th-century northeast wall, which was once the northeast courtyard wall. This thick stone wall retains a fireplace and blocked openings in its southwest face.

To the southwest of the gatehouse, there is a high castellated wall that has been partly repaired and rebuilt, incorporating a doorway and later 20th-century vehicular doors, extending to the southwest angle. From this point, a castellated wall on top of a grass embankment with a limestone kerb returns northwest to a location roughly parallel with the rectangular bay windows in the southwest elevation of Llandough Castle. Beyond this, there is a pair of 19th-century iron gates that were originally located at Cardiff Docks.