(1) Any reference in this Part to development, in relation to any land or building, means any of the following—
(a) the carrying out in, on, over or under the land of any building or mining operations, other than—
(i) the carrying out in any building which is not subject to a building preservation order of any internal works which do not materially affect the external appearance of that building;
(ii) the carrying out by or on behalf of the authority responsible of any operations in connection with—
A. the renewal, maintenance or improvement of any existing public utility service not within a scenic beauty area; or
B. the installation or construction of any new public utility service which is shown on a general plan or is within a road or is within the area of an operative master plan or local plan or an approved scheme and accords with that plan or scheme;
(iii) the carrying out of any building operations in connection with the use of any land or building thereon for agricultural purposes unless such operations— A. are to be carried out within two hundred meters of the center line of any main road or district road; or
B. are to be carried out on any property which is less than one hundred hectares in extent; or
C. are to be carried out in a scenic beauty area;
(b) the altering of the character of the use of any land or building, other than—
(i) where the existing use and the proposed use both fall within the same prescribed group of land or building uses;
(ii) the use of any land or building thereon for agricultural purposes unless such use is to be established on any property which is less than one hundred hectares in extent.
(c) the deposit of refuse or waste materials on any land;
(d) the use on any land of any vehicle or similar object, whether fixed, movable or collapsible, as a building for residential or other purposes for a period exceeding six months or such longer period as the local planning authority may authorize;
(e) the use of any building which is designed or has been approved for use as a dwelling by a single family as two or more separate dwellings;
( f ) the display on any land or the external part of any building of any advertisement in a manner other than that prescribed.
(2) For the purposes of subsection (1), any land or building shall be regarded as being used for agricultural purposes if it is used directly for any of the following— (a) the production of any agricultural produce;
(b) the storing, curing, grading, packing or other handling or processing of any agricultural produce which is produced on the land concerned;
(c) any purpose ancillary or incidental to a use specified in paragraph (a)or (b), other than accommodation and facilities for persons employed directly on the land:
Provided that any land which is being used as a feed-lot shall not be regarded as being used for agricultural purposes.
(3) In this section—
“feed-lot” means any land on which there is carried on the business of fattening for the purpose of slaughter livestock which has been brought on to the land for the purposes of fattening;
“public utility service” means any of the following services provided in the public interest by a local authority or statutory body— (a) roads, railway lines or pipelines;
(b) the generation and supply of electricity or gas;
(c) the storage, purification and supply of water;
(d) radio or telecommunication services;
(e) drainage or sewerage; and anything ancillary or incidental thereto.