Walls to Garden and Moat, Bridge and Attached Gazebo and Arch at Mannington Hall

The walls to the garden and moat, bridge, and attached gazebo and arch at Mannington Hall are located to the northwest of the hall. The walls date from the 17th century and later, constructed of brick with the lower part in Flemish bond. The upper part was renewed in the late 19th century, featuring an embattled top with arrowslits. There is a slanting buttress at the northwest corner on the moat side, along with pilasters and a moulded string course on the north wall. A lead cistern, dated 1689, is found in the northwest corner.

The gazebo, attached to the south end of the wall and extending into the moat, dates from the 16th or 17th century. It is made of brick and has a dentil cornice, with a hipped roof covered in plain tiles from the 19th century, topped with prow finials on the short roof ridge. The gazebo is rectangular and one storey high, featuring a central door on the south side under a pointed chamfered brick arch with a stone keystone, flanked by brick pilaster strips. There is a 2-light brick mullioned window on the west side overlooking the moat.

To the northwest of the hall is an arch in the wall, dating from the late 16th century, made of stone. It has a 4-centred arch with heraldic arms in the spandrels, flanked by reeded pilasters with Ionic capitals beneath a classical entablature. Above the arch is the Walpole crest, which depicts a bust of a man ducally crowned with a pointed cap falling forwards.

The bridge across the moat to the north is largely from the 19th century but has an earlier base. It is made of brick, featuring a moulded string course and embattled parapets.