The first defensive walls at Worcester were built after the Roman conquest of Britain in AD 43.
Although a settlement existed on the site during the Iron Age, there is no evidence that walls were ever built around it.
The Roman town was probably preceded by the construction of a Roman fort, both located on the south side of the modern city and protected by the River Severn to the west.
There are relatively few historical details or archaeological evidence from this period, but archaeological investigations of the Roman town walls suggest that it had wooden ramparts and was protected by an 89-foot (27 m) wide ditch.
As with other Roman towns, the walls would have enclosed a rectangular town, protecting a settlement with a grid-like network of streets.

The decline of the Roman Empire brought an end to Roman rule in Britain by the start of the 5th century.
The town within the old Roman walls at Worcester continued to be occupied however, remaining a prominent military feature.
New Christian religious foundations were established at Worcester during this period, attracted there in large part by the security the Roman defences offered during a troubled period.
In the 7th century, Worcester Cathedral was built, once again within the old Roman walls.
The first defensive walls at Worcester were built after the Roman conquest of Britain in AD 43. Although a settlement existed on the site during the Iron Age, there is no evidence that walls were ever built around it. The Roman town was probably preceded by the construction of a Roman fort, both located on the south side of the modern city and protected by the River Severn to the west. There are relatively few historical details or archaeological evidence from this period, but archaeological investigations of the Roman town walls suggest that it had wooden ramparts and was protected by an 89-foot (27 m) wide ditch. As with other Roman towns, the walls would have enclosed a rectangular town, protecting a settlement with a grid-like network of streets.
The decline of the Roman Empire brought an end to Roman rule in Britain by the start of the 5th century. The town within the old Roman walls at Worcester continued to be occupied however, remaining a prominent military feature. New Christian religious foundations were established at Worcester during this period, attracted there in large part by the security the Roman defences offered during a troubled period. In the 7th century, Worcester Cathedral was built, once again within the old Roman walls.
Worcester city walls