Former Exchequer Building, Now University Library

The Former Exchequer Building, now a university library, was constructed between 1438 and 1457 for Bishop Neville. It features coursed squared sandstone with ashlar dressings and a stone-flagged roof. The building has three storeys and two bays. There are steps leading down to a studded, ledged boarded door located to the right of the first bay, which is set in a two-centred-arched surround. This surround has fragments of roll moulding on the lower course, renewed on the course above, and chamfered above that. The ground-floor windows on both the left and right have three Tudor-headed lights and label moulds. The first-floor windows contain three round-headed stepped lights, while the second floor has three windows with two round-headed lights, all under dripmoulds and with chamfered surrounds. The Neville arms, with the ears removed from the horse's head, are positioned between the upper windows under a canopy on an angel bracket. The building features an eaves string, and the parapet, which was formerly battlemented, has roll-moulded coping.

Inside, there is a central passage leading to a 12-ribbed vault, with a newel stair to the right and a second newel stair that survives in part at the rear of the building, which is heavily weathered. A 17th-century open-well stair has widely spaced barley-sugar twist balusters, a closed string, and a high grip handrail, although it has been partly renewed. Many of the door surrounds are stop-chamfered and flat Tudor-arched, including those leading to the Chancery Court and Exchequer Court, which are now combined into one room. Masons' marks, featuring a "W" with a central projecting cross, can be found on these doors and on a third ground-floor door. A square-headed door at the rear has a stopped chamfer with a narrower chamfer below. The original stop-chamfered beams and ceilings over both floors feature beams with three hollow chamfers.