" Where there has been a breach of planning control consisting in the carrying out without planning permission of building, engineering, mining or other operations in, on, over or under land, no enforcement action may be taken after the end of the period of four years beginning with the date on which the operations were substantially completed."
" The building operations are complete when those activities which require planning permission are complete."
" As a matter of fact and degree, I consider that, having regard to its layout and appearance, [this building] is not an agricultural building and was not designed as such. … [It] is best described as a dwelling house that is in course of construction."
" I can see no policy reason why we should construe s.55(2)(a) as limited in its application to buildings which have been completed according to some notional plan."
"Where there has been a breach of planning control consisting in the carrying out without planning permission of building ... operations ...."
" I conclude that, as a matter of law, operations and other works which do not amount to development are not to be taken into account in deciding whether there has been substantial completion within the meaning of s.171B(1). As the deputy judge pointed out, where all the operations amounting to development have been carried out there is nothing remaining against which the local planning authority could take enforcement action."
" I am presently inclined to the view (without the matter having been fully argued) that substantial completion has taken place when there is enough to enable a planning authority to judge whether or not the building has sufficient adverse effects to make it expedient to issue an enforcement notice."