This area although somewhat detached from its context by surrounding post - war clearance programmes was initially developed in the later 18th century as part of the Alsop's Fields development of grid iron streets laid out for speculative development by the Duke of Norfolk's estate. The is partial legibility of original and late 18th - early 19th century brick buildings along Norfolk Street and Surrey Street including 109 Norfolk Street (The Brown Bear) the oldest surviving brick house in Sheffield. Later redevelopments of the original fabric include the Masonic Hall (1875) Lyceum Theatre (1893) and Central Library (1929) all of which are listed buildings. Tudor Square was created in 1991 by demolition of some of the surrounding buildings.