The Deanery and Vestries, Cathedral of St John the Evangelist

The Deanery and Vestries form a long range of buildings associated with the Cathedral of St John the Evangelist. The construction dates span from the late 13th/early 14th century to the 19th century, with significant alterations and additions.

The northern block is two storeys high with an attic; it features a large, flat-roofed, eight-light dormer window on the ridge, designed by Caroe. The exterior is stone with stone slate roofs, and predominantly features wooden mullion and transom windows. The ground floor has a doorway, two windows, a further doorway, and a four-light window. A four-stage tower with a parapet and two stepped buttresses rises from the block; it has a single window to each stage, with five lights on the ground floor, three lights on the first floor, and two-light windows above. To the south of the tower is a three- and two-storey block with a hipped roof to the right. The left section is three storeys high, with four mullion and transom windows on the top floor and three windows on the others; it contains a doorway with a shouldered arch. A two-storey parlour block is located at the south end. The south return wall displays a shallow chimney breast and a single window on each floor.

The east elevation is more complex. A vestry range, incorporating what were formerly stables, has eight Gothic windows set at eaves level, largely designed by Caroe. On the ground floor, to the right of the vestry range, is a Gothic doorway and four small, square-headed windows, followed by two three-light mullion and transom windows. The tower has two windows to the upper stage, positioned above a fine 14th-century window with three cusped lights. Below this are two mullion and transom windows, and a blocked doorway. To the left of the tower is a stone gable with a single window, and two windows to each floor below the gable. A broad 20th-century extension on the ground floor obscures a medieval doorway. At the south end of the block is an attic window set across the eaves and mullioned windows to the first and ground floors.

The vestry contains an early 17th-century six-bay ceiling supported by re-used stone corbels. Evidence remains of a 17th-century stable with semi-elliptical arches with pendants and two wooden columns. The first floor retains nine early 17th-century roof trusses. A room at the south end has an early 17th-century chamfered stone fireplace.

The Deanery contains a late 13th/early 14th-century doorway and a medieval staircase lobby. A 16th-century staircase chamber exists within. A south room holds an early 18th-century bolection-moulded fireplace. Surviving medieval stair doorways are present. In a first-floor room of the tower is a medieval stone fireplace with an obscured inscription "SE(?)MB," masked by an 18th-century cornice. Re-set medieval corbels are also found. The second floor of the Deanery features a fine, re-used medieval stone fireplace, alongside a Tudor fireplace on the first floor. The four-bay roof of the Deanery has arched collar-beam trusses datable to the mid-16th century. Some rooms feature 18th and 19th-century detailing. The interior was sensitively converted by W D Caroe in the late 1920s and retains fine late Arts & Crafts doors and fittings from that period.