Wessex Archaeology was commissioned to undertake an archaeological evaluation of the site and watching brief on the removal of a concrete slab, concrete foundations and a tarmac surface at a 0.47 ha parcel of land located at Land off Rockingham Street, Sheffield. It was proposed that the evaluation would comprise 14 trenches measuring 6 m x 3 m, positioned to investigate specific aspects of mid-to late 19th-century occupation of the site depicted on OS mapping from 1853 and 1890. All works were undertaken in accordance with a written scheme of investigation (WSI) which detailed the aims, methodologies and standards to be employed in order to undertake the evaluation (Wardell Armstrong 2019 Steel Works House Indicative Written Scheme of Investigation for Archaeological Evaluation. Unpublished Rep Ref. St16524.002) and an addendum to the WSI (Wessex Archaeology 2019 Grunwergs 2, Land off Rockingham Street, Sheffield, South Yorkshire. Addendum to Written Scheme of Investigation for Archaeological Evaluation. Unpublished client report ref 226161.02) which was prepared to take the result of the previous watching brief into account. Dinah Saich, Principal Archaeologist with South Yorkshire Archaeology Service, approved the WSI and the addendum, on behalf of the Local Planning Authority (LPA), prior to fieldwork commencing. Twelve of the proposed fourteen trenches were excavated (based on the results of trenches 1 and 4, which were devoid of archaeological remains, it was decided, in consultation with SYAS, that trenches 2 and 5, adjacent to trenches 1 and 4, would not be excavated; in addition - with SYAS' agreement - several of the trench locations had to be adjusted to avoid obstructions.) The evaluation trenches targeted 19th century back to back housing, Bailey Lane works, Swedish Steel and File Works amongst other features related to that period. The majority of the trenches showed evidence of demolition that had occurred in the area and walls related to a younger phase. However in trench eight, remains of a crucible furnace were found underneath the concrete surface and will be further investigated in later phases of project development (Mitigation). The finds assemblage is entirely of post-medieval/modern date, with a likely date range of 18th to 20th-century.