“(i) the carrying out of building, engineering, mining or other operations in, on, over or under land; or (ii) the making of any material change of use of any buildings or other land.”
“In determining for the purposes of sub-sections (2) and (3) what is or was the normal use of land, no account should be taken of any use begun in contravention of this Part or of previous planning control.”
“Where an enforcement notice has been issued in respect of any development of land, planning permission is not required for its use for the purpose for which (in accordance with the provisions of this part of this Act) it could lawfully have been used if that development had not been carried out.”
“First, whenever it is possible to recognise a single main purpose of the occupier’s use of his land to which secondary activities are incidental or ancillary, the whole unit should be considered… But, secondly, it may equally be apt to consider the entire unit of occupation even though the occupier carries on a variety of activities and it is not possible to say that one is incidental or ancillary to another… Thirdly, however, it may frequently occur that, within a single unit of occupation, two or more physically separate and distinct areas are occupied for substantially different and unrelated purposes [and] in such a case each area used for a different main purpose (together with its incidental and ancillary activities) ought to be considered as a separate planning unit”.”
“Like the question of material change, it must be a question of fact and degree.”
“It may be a useful working rule to assume that the unit of occupation is the appropriate planning unit, unless and until some smaller unit can be recognised as the site of activities which amount tin substance to a separate use both physically and functionally.”
“34. The Inspector does not seem to have directly considered the impact of the two garage buildings either individually or together on the character of the landscape, nor taken (in the light of his finding that the site has lawful uses as a dwelling house and ancillary land) of the permitted development rights which thereby accrue to buildings on land which has permission as land ancillary to a dwelling house. 35.