Canalside Warehouse of Gs Dilley and Sons

The Canalside Warehouse of GS Dilley and Sons is an iron warehouse built in the mid-19th century, with later additions from the 19th century. It was constructed for the Firth family, who were steel makers. The building is made of brick with ashlar dressings and features hipped and gabled corrugated iron roofs from the 20th century. It has an L-shaped plan, with a taller gabled warehouse facing the canal and a lower warehouse with a hipped two-span roof running parallel to the canal.

On the canal side, there is a continuous ashlar plinth. The left gable has a blocked elliptical arched goods entrance with a rusticated head and voussoirs. The opposite gable features a blocked round-arched opening above and an enlarged entrance below, which has a timber lintel. The range to the right is open to the roof but has two storeys of openings. Above, there is a central segment-headed window flanked by single flatter arched windows, and beyond them, single larger windows, all of which are bricked up. Below, there are two goods entrances, with the left being segment-headed and the right having a girder lintel, along with a window to the left, all bricked up. The rear of the building has a central full-height segment-headed doorway with flanking buttresses, flanked by two round-headed windows, with the left ones blocked and the right ones partly blocked.

Inside, the warehouse features a king post truss roof and a narrow gauge rail track. This warehouse was used for storing bar iron from Sweden before it was processed in the cementation and crucible works. It is noted to be the only surviving example of this type of warehouse in Sheffield.