These units first appear on the 1968 OS and represent the beginnings of the Parkway Industrial estate. Prior to the industrial estate the plot was occupied by the Broad Oaks Gardens or allotments. The allotments are first depicted on the 1893 25 inch OS map but could be somewhat earlier in origin. The allotments were created from fields enclosed in a piecemeal fashion. The fields were probably on the very edge of the Attercliffe town fields and bordered Sheffield Park. Legibility is invisible.