We are in the early stages of selling our house. It was extended by us a number of years ago. We have all the correct planning permission and building regulations which have been sent to the buyers solicitors. They have now raised an enquiry about proof of permission for the extension from the original developer . House was built in the 1930's!! We had no idea it needed this permission but it's apparently in the small print of the deeds. Anyone else come across this? Would an indemnity be the answer? Apparently the company does still exist but really don't feel like contacting them retrospectively. I'm pretty sure none of our neighbours would have done this when they extended either.