The three seasons of excavation 1969–71 have provided details of occupation lasting continuously from the third century until the nineteenth century. In the Roman period cobbled streets and timber buildings, pits and wells have been excavated but they show little sign of rigid planning. The streets continued to be used in the fifth and sixth century when huts of post-built and grubenhaus type were constructed. Some parts of the interior were now ploughed.

In the eighth and ninth centuries timber buildings, storage pits, and cess pits were concentrated in one area close to the south wall of the Roman fort. Near by a well, constantly used from the Roman period and subsequently relined with timber, was abandoned and used as a rubbish tip. Some additional buildings and pits belonging to the ‘hall complex’ of late Saxon date were found. Medieval features included boundary ditches, a lime kiln and slaking pit, and a timber building. Some areas of the interior were cultivated throughout this time.

In the early sixteenth century a large store building was erected in masonry: it was demolished late in the sixteenth century. Thereafter the fort was used as a prison camp until the early nineteenth century. Various features of this period were found.

The Landgate was further excavated bringing to light structural details of Roman, Saxon, and medieval date. Limited excavation in the priory exposed details of the claustral buildings.