These pictures from Sheffield Archives show just a few of the buildings that have disappeared, including the Sheffield Town Hall Egg Box, Kelvin Flats and blocks at Norfolk Park and Hyde Park.
Many images are for sale on the archives website at Picture Sheffield (picturesheffield.com) – search using the reference number in the caption.

9. Terrace clearance
Demolition under way at Weston Terrace, Western Bank, Sheffield, with the University of Sheffield Arts Tower in the background, pictured on March 2, 1966. Ref no: s20433 Photo: Picture Sheffield

10. Crane removal
An overhead crane being demolished at the English Steel Corporation River Don Works on Brightside Lane, Brightside, Sheffield on March 27, 1932. Ref no: s09807 Photo: Picture Sheffield