The main event
Salts Mill, as a building
Before the art and the shops and the cafes, Salts Mill is a building. Built in 1853 by Titus Salt to the design of Henry Lockwood and William Mawson, it was at the time the largest industrial building in the world. You walk in off Victoria Road and the first thing you notice is the scale. The floor plates are enormous. The cast-iron columns run off into the distance. The windows are on a scale built for nineteenth-century daylight, not electric lighting.
The reason the Mill is the main event is not that it has art in it — plenty of buildings have art in them — but that the reuse of the building itself is the point. Jonathan Silver bought it in 1987, when it was close to derelict, and turned it into a mix of galleries, shops, offices and cafes. That reuse is why Saltaire still functions as a village instead of being a preserved museum. The Mill is the reason the rest of the village has not been fossilised.
You can walk around the ground and first floors freely during opening hours. Spend thirty minutes on the building alone before you look at anything inside it. The ceilings and columns are what you came for.

