Part 6 AGRICULTURAL BUILDINGS AND OPERATIONSI1

For the purposes of Part 6—

• “agricultural land” means land which, before development permitted under this Order is carried out, is land in use for agriculture and which is so used for the purposes of a trade or business and excludes any dwellinghouse or garden or any land used for the purposes of fish farming;

• “agricultural unit” means agricultural land which is occupied as a unit for the purposes of agriculture other than fish farming, but includes—

  1. (a)

     any dwelling or other building on that land occupied for the purpose of farming the land by the person who occupies the unit; or

  2. (b)

     any dwelling on that land occupied by a farmworker;

• “building” does not include anything resulting from engineering operations;

• F1“designated area” means—

  1. (a)

     a national scenic area,

  2. (b)

     a National Park

  3. (c)

     a World Heritage Site,

  4. (d)

     a historic garden or designed landscape,

  5. (e)

     the curtilage of a category A listed building,

  6. (f)

     a site of archaeological interest,

  7. (g)

     a conservation area,

• “fish farming” means the breeding or rearing of fish or the cultivation of shellfish (including crustaceans and molluscs of any description) for the purpose of producing food for human consump tion or for transfer to other waters;

• “the purposes of agriculture” includes fertilising land used for the purposes of agriculture, and the maintenance, improvement or alteration of any buildings, structures or works occupied or used for such purposes on land so used;

• F2“significant extension” and “significant alteration” mean—

  1. (a)

     in respect of the period before 1 April 2021, any extension or alteration of the building where the cubic content of the original building would be exceeded by more than 10% or the height of the building as extended or altered would exceed the height of the original building,

  2. (b)

     in respect of the period beginning on 1 April 2021, any extension or alteration of the building where the cubic content of the original building would be exceeded by more than 20% or the height of the building as extended or altered would exceed the height of the original building,

• “slurry” means animal faeces and urine whether or not water has been added,

• F3...