name=Chester Self Storage
https://www.openstreetmap.org/way/1009689232

amenity=self_storage ? Is it simply a shop=storage_rental? See https://wiki.openstreetmap.org/wiki/Tag:shop%253Dstorage_rental Or is it selling boxes/packaging?

If it is certainly shop=storage_rental - would it be safe to mass-retag it without inspecting individual cases for all objects tagged this way?