I got my planning and Building approval about 3 years ago for a rear extension and loft conversion, as the project started with the rear extension I have only just started the loft. The Regs changed in Feb 2007 and I would prefer to go with the newer loft regs for escape and fire protection. Some aspects make sense like no requirement for an escape window with a protected safe exit route. Interestingly you have to have fire doors to the protected route but no longer need door closers. I achieve the modified 30 minute protection to floors and wall. If I go to the Building Control will for advice will they will hold me to the new regs? I don't want the expense and low position of an escape window if the fire brigade cannot get ladders up anyway, which is what the regs imply. My approval seems to be mixture of the two (2005) with escape window, protected route, closers etc.