I have spoken with building control at my local authority and they have suggested I can follow the stair case up as long as 30min fire doors and a fire alarm wired throughout to the mains. However a tradesmen came and and suggested that his friend in the know who was an inspector suggests that a sprinkler system or an external means of escape would be required! The proper is a 3 storey semi detached and I want to go into the loft making it 4 storey.
