Guildford Castle
Excavation by R J Poulton for SyAS, SCAU and Guildford Borough Council in Castle Cliffe Gardens located a large deep ditch which had probably been largely infilled by the early 13th century. It is postulated that it was the original outer bailey ditch, filled in when the Castle was extended further south to the Quarry Street line in the 13th century, for the Royal Palace.