Remains of a sub-rectangular medieval moated enclosure in reasonably good condition, c.1.40ha. in area, located to the south of the main London Road at the end of Hall Chase. The north, east and south arms of the moat are well defined, but the western arm (where the entrance would have been located) is unclear (the western arm is also not marked on the 1843 tithe map, so had presumably already been infilled at this date). The moat encloses Marks Tey Hall, formerly the manor house of the parish; Marks Tey Hall is a Grade II Listed Building that dates from the 16th century (NHLE no. 1224576 (HER Monument no. MCC7535). However, a building is recorded on the site as early as the 14th century. In addition to the Hall, the barn to the west of the hall is Grade II* Listed and is dated to c.1400 (NHLE no. 1224577). The Chapel Barn to the NW of the hall is Grade II Listed and dated to the 17th century (NLHE no. 1266768; HER Monument no. MCC4405). There were further farm buildings to the west but these have been removed. The site of the moated enclosure was adopted onto the Local List by the Local Plan Committee on 24/08/20. The site is documented from the early 14th century and the form of the moated enclosure is easily identifiable.