The following text is from the original listed building designation:
TR 0653-0753 CHILHAM SCHOOL HILL (south-west side)
7/31 Wall to Chilham Castle Estate, from Gatehouse south
GV II
Wall. C18. Chequered brick, approximately 7 foot high. Runs 100 yards down entire length of School Hill to Annagh House. One Cl9 opening to cottage 35 yards south of gatehouse.
Listing NGR: TR0688253498 (1)

Wall to Chilham Castle Estate, built in the 18th century. Approximately 7 foot high and built of chequered brick (2)

Historic England archichive material: BF008781 CHILHAM CASTLE, CHILHAM

<1> English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.

<2> Thacker, C., 1987, Register of parks and gardens of special historic interest in England: part 24 (Kent) (Article in serial). SWX7605.