The property in Kelham Island is at Green Lane Works, an old metalworking factory with a Grade II* listed gatehouse built in the early 1860s.
After the works – which at various times specialised in the production of stove grates, files, razor blades and agricultural tools – closed the building became disused, but in 2017 the place was converted into residential apartments and commercial units.
The sale is being handled by Blundells and the flat is listed on Zoopla.
5. A good vantage point
The flat's mezzanine floor is a versatile space. Photo: Zoopla/Blundells
6. A tasteful kitchen
The kitchen has integrated appliances and Italian Calacatta Paonazzo marble tiles. Photo: Zoopla/Blundells
7. Reaching the heights
Access to the rooftop terrace, with views over Kelham Island, can be found from the mezzanine. Photo: Zoopla/Blundells
8. Marble throughout
The bathroom is fully tiled again with Calacatta Paonazza tiles; it features a three-piece suite including a bath with an overhead shower. Photo: Zoopla/Blundells