This unit, now part of a large superstore (see HSY 1805) which has been redeveloped from industrial use since the 1984 OS1:10000. The polygon shows the approximate site of the buildings dam and goits of 'Norris Wheel' (SMR 1617) although the site is currently invisible within the modern landscape. A grinding wheel was first developed on this site by the Broomhall Estate shortly before 1750. It seems to have had a short life, falling out of use between 1810 and 1845 (Ball et al 2006,139-140). This area of the site, provided with a road frontage by the construction of Ecclesall Road turnpike, became the focus for later development of this area, the mill site becoming the Albion Brewery by 1851. Invisible legibility of earlier types.