Originally Posted by
airpolice
Produce that as your planning consent, secure in the knowledge that no local authority can realistically go back 30 years and find their copy of anything.
You're taking a little bit of a risk, someone might have put that stuff onto microfiche (and might still have a working reader!). But yes, I did once ask council officers to search for some old plans, to be told, eventually, "they must have got lost in the 1936 fire". (There was, of course, no 1936 fire - this is simply officer speak for "sorry councillor, can't find them, I'm going back to my day job now".)