Thanks Temp.
I have taken the view I will get it 100% complete and signed off, then add the New Dormers. You are right, they shoudl have removed the PD on this but didn't. I spoke with the case officer and said what I intended to do and he agreed that I could and he checked to see if the PD was a restriction and also said it shoudl have been removed.
So all in all it looks like I shoudl be OK?