The Deanery, Priors Hall and Adjoining Boundary Wall to South West

The Deanery, Priors Hall, and the adjoining boundary wall to the southwest is a Grade I listed building that was originally the Prior's Lodging. It dates back to the 13th century, with later remodeling and additions from the 16th and 17th centuries. The structure is built of flint and brick rubble, featuring stone and some brick dressings, topped with a pantile roof.

The south facade is divided into three parts. The left part has two storeys and an attic, with a mix of fenestration that includes blocked 13th-century lancets, a mullioned and transomed window with leaded lights, and a two-light window with a cusped head. There is a plain brick stringcourse and two stepped gables, each with a three-light attic window. The center part features a hipped gable-fronted projecting wing with chequer-work and brick dressings, along with two flat-headed sash windows with glazing bars beneath earlier cambered brick arches. The right part is a hipped gable-front extension to the cross-wing, which has a stepped gable and a red brick facade with rubble side walls. The ground floor has an arcade of three round-headed arches with linked imposts, and a central sash window with glazing bars. Above, there are two large first-floor sashes under cambered gauged brick arches. Access is from the left side through a door with glazing bars, with another door, a Venetian window, and a stepped gable to the right.

The left side elevation, which includes the rear wing and the boundary wall to the southwest, formed the east wall of the west claustral range of the Cathedral Priory. It features blocked arches, brick dressings, and two mullioned and transomed windows that indicate various building periods. The rear elevation has two two-light late 15th-century windows on the ground floor and four first-floor sashes. Although the interior was not inspected during the re-survey, it is noted to contain a doorway with a four-centred head and moulded spandrels, as well as a fine mid-16th-century Renaissance carved overmantel in the library.