One of the most useful sources of information for the history of the Guildhall are the ink-wash drawings of Samuel Hieronymous Grimm a Swiss artist who was extensively employed by the Dean of Lincoln, Sir Richard Kaye mainly to record architectural subjects.
The exterior of the west range faces Lincoln High Street, The facade consists of five bays, has shallow buttresses, chamfered plinth and band of Romanesque decoration with bird and beast masks to the northern part.