Retaining Wall to Churchyard from Deanery Gate to Ford opposite Bishops Palace, including Front Wall

The retaining wall to the churchyard, located from Deanery Gate to the ford opposite the Bishop's Palace, is a Grade II listed structure. It is made of rubble stone and stands free at the southern end, where there are two large squat square stone piers topped with pyramid caps marking the entrance to Deanery Gate. The entrance features 20th-century wooden gates and a small stone kissing gate to the north.

From the gate, there is a section of wall approximately seven meters long, followed by a retaining wall extending about 22 meters. At the southern end, there are two blocked loops, similar to those found in the north wall of the 14th-century St Mary's College. These loops indicate the site of an undercroft described by Archdeacon Yardley in the early 18th century as "one large vault of equal length," used for storing materials for the church's maintenance and repairs.

Yardley also notes that the school, which was previously located in the western cloister, was relocated here to what was referred to as a "storehouse, or workhouse for ye use of ye church." It is presumed that a schoolroom was built above this area, which remained until 1791 when John Nash converted it into a chapter house that faced criticism and was demolished in 1829. The extent of the surviving undercroft is unknown. This site is also designated as a Scheduled Ancient Monument, reference Pe 442, due to the undercroft of the demolished Free School.