Very many thanks for your replies.
I think the gist is that any reasonable person would have expected this to be picked up and a request made to me for the missing information.
I of course would have just submitted it had I been informed it was required, at the validation stage or even during...
Dear all,
We have applied for a Certificate of Legal Development for an outbuilding close to the existing house on a site that slopes away from the house.
A section plan (along with plan view, rear elevation location and site plans), showing how the proposal relates to the sloping ground...