I am looking at a proprty in need of modernisation. i am looking at the possibility of changing th staircase to a spiral or open stair case.
How easy/practical would this be and would it require planning permission?
It will certainly require building regs. A spiral staircase can normally be put in with minimum fuss from the BCO IF its a secondary staircase. Theres lots of interpretation by Building Inspectors as regards Part K. You'd be better off springing down there and having a chat about it.