Please don't shout at me! i am finding it hard to decide whether the attached extension will be Permitted Development or not. I have read in a booklet that it will as the rear elevation of the extension is wider than half the original width. A planning consultant told me it would be P.D. but if i was unsure to go for a Certificate of Lawful Development. I don't want my client to pay for CLD aswell as planning so thought i would ask you kindly folk for your opinions as to whether you think it is PD or not? The drawing looks as though the rear elevation of the extension is not wider than half the original width - it is, i have incorrectly sketched this...