The following text is from the original listed building designation:
1. 944 THE CATHEDRAL PRECINCTS
Wall and gatepiers between No 28 & No 29 TR 1558 SW 3/467
II GV
2. Mediaeval masonry has been reused. The base is of diapered stone and flint with brick above, some Georgian brick, some modern. 2 restored brick gatepiers with 2 modern urns.
Nos 20 to 29A (consec), Pilgrim's or Pentise entry attached to No 29, wall in garden of No 29, wall and gatepiers between Nos 28 and 29, Gateway from Green Court and building adjoining to left, King's School Library and Norman staircase form a group.
Listing NGR: TR1510458041 (1)

Description from record TR 15 NE 169:
(TR 15115806. Sited from HHR map). Wall and gatepiers between No 28 and No 29 The Cathedral Precincts. Medieval masonry has been reused. The base is of diapered stone and flint with brick above, some Georgian brick, some modern. Two restored brick gatepiers with two modern urns. Grade II. (2)

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

<2> Roman Canterbury 1957 9 (S Frere) (OS Card Reference). SKE49328.