This area was part of the comprehensive rebuilding of the 'Civic Circle' area of the city that resulted in the present 'Moor' area, undertaken following extensive WWII bomb damage (SCC 1945 and Harman and Minnis 2004:100). The boundaries of this polygon are the 'Arundel Gate' section of dual carriageway to the east and the former line of 'Porter Street' not reproduced in the new layout but formerly marking the south-eastern edge of the historic Sheffield Moor (historic map evidence and HSY1754) This area was first urbanised as part of the late 18th century expansion of Sheffield (as shown from Fairbanks plan of 1797) as a regular, grid plan developments of the Duke of Norfolk's land previously known as 'Alsops Fields'. No legibility of earlier street layout.