Conditions
B.5—(1) Development permitted by Class B and carried out within 400 metres of the curtilage of a protected building is subject to the condition that any building which is extended or altered, or any works resulting from the development, is not used for the accommodation of livestock except in the circumstances described in paragraph D.1(3) of this Part or for the storage of slurry or sewage sludge, for housing a biomass boiler or an anaerobic digestion system, for storage of fuel or waste from that boiler or system, or for housing a hydro-turbine.
(2) Development consisting of the extension or alteration of a building situated on article 2(4) land or the provision, rearrangement or replacement of a private way on such land is permitted subject to—
(a)the condition that the developer must, before beginning the development, apply to the local planning authority for a determination as to whether the prior approval of the authority will be required as to the siting, design and external appearance of the building as extended or altered or the siting and means of construction of the private way; and
(b)the conditions set out in paragraphs A.2(2)(ii) to (vi) of this Part.
(3) Development is permitted by Class B(f) subject to the following conditions—
(a)that waste materials are not brought on to the land from elsewhere for deposit unless they are for use in works described in Class B(a), (d) or (e) and are incorporated forthwith into the building or works in question; and
(b)that the height of the surface of the land will not be materially increased by the deposit.
(4) Development is permitted by Class B(a) subject to the following conditions—
(a)where development consists of works for the significant extension or significant alteration of a building and—
(i)the use of the building or extension for the purposes of agriculture within the unit permanently ceases within 10 years from the date on which the development was substantially completed; and
(ii)planning permission has not been granted on an application, or has not been deemed to be granted under Part 3 of the Act, for development for purposes other than agriculture, within 3 years from the date on which the use of the building or extension for the purposes of agriculture within the unit permanently ceased,
then, unless the local planning authority have otherwise agreed in writing, the extension, in the case of development consisting of an extension, must be removed from the land and the land must, so far as is practicable, be restored to its condition before the development took place, or to such condition as may have been agreed in writing between the local planning authority and the developer;
(b)where an appeal has been made, under the Act, in relation to an application for development described in paragraph (a)(ii), within the period described in that paragraph, that period is extended until the appeal is finally determined or withdrawn.
(5) Where development is permitted by Class B(a), within 7 days of the date on which the development is substantially completed, the developer must notify the local planning authority in writing of that fact.