We found a cottage we loved and after a couple of years managed to get a buyer for our house. Offer was accepted and we instructed solicitor. We went back to the cottage and I noticed varies things to the rear of the cottage which did not look tight. Small area of tiles in an otherwise thatched roof and a flat roof which extended over a dilapidated leanto being used as a utility room. I decided as it was grade2 listed to speak to conservation officer. It turned out that none of this work had approval. Vendors denied any knowledge but they have been forced to get retrospective approval. There is also numerous additional works internally to the cottage which are suspect. Because this is going to take six months to sort out we have lost our buyer. My argument is that the agents should have checked the LB status before marketing it and they should at least pay our abortive legal bill. What do you think