Grade I listed building. Main construction periods 1300 to 1399. The south side of the courtyard of the former manor house of the Archbishops of Canterbury which comprised the gatehouse and the porter's lodge. They were probably built by John Stratford, who was Archbishop from 1333-1348, and whose favourite residence is said to have been Charing. The south-east portion consists of the roofless remains of the gatehouse, comprising stone carriage and pedestrian archways with obtusely pointed heads. To the north-east of the gatehouse is a cottage of two storeys and three window bays with a half-hipped tiled roof. The ground floor windows of the cottage are set in the stone surrounds of mediaeval windows. Following the cottage is another ruined portion with a pointed stone archway flanked by buttresses and then another inhabited cottage of two storeys and attic with a steeply-pitched tiled roof.