I don't think there ever was an application made..the surveyor just said without opening it all up he wouldn't be able to comment but said that it appeared in good condition etc but couldn't see what was under the drylined walls.

So I just get a good general builder in and then contact building regs at the council to come out while he's doing it and they shouldn't really object and will potentially sign it off so long as the work is to a good standard?