The core of the settlement was divided into three main streets of which continue to adhere to their medieval shape today, of which were: High Row, Low Row and the Lonnin (now Sunderland High Street). The latter street connected Bishopwearmouth to another settlement, Sunderland, which was a small fishing port at the mouth of the river.
The settlement's central area was divided into three primary streets that have retained their medieval layout to this day, consisting of: High Row, Low Row, and Lonnin (now Sunderland High Street). This street connected Bishopwearmouth to another town, Sunderland, which served as a small fishing port at the river's mouth.