# The Town and Country Planning (General Permitted Development) Order 1995, Paragraph A.1: Development not permitted


Development is not permitted by Class A if–
(a) it consists of the drilling of boreholes for petroleum exploration;
(b) any operation would be carried out within 50 metres of any part of an occupied residential building or a building occupied as a hospital or school;
(c) any operation would be carried out within a National Park, an area of outstanding natural beauty, a site of archaeological interest or a site of special scientific interest;
(d) any explosive charge of more than 1 kilogram would be used;
(e) any excavation referred to in paragraph A(c) would exceed 10 metres in depth or 12 square metres in surface area;
(f) in the case described in paragraph A(c) more than 10 excavations would, as a result, be made within any area of 1 hectare within the land during any period of 24 months; or
(g) any structure assembled or provided would exceed 12 metres in height, or, where the structure would be within 3 kilometres of the perimeter of an aerodrome, 3 metres in height.

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Source: https://www.legislation.gov.uk/uksi/1995/418/schedule/2/part/22/crossheading/class-a/paragraph/A.1 (the official version)
Page: https://openlegislation.uk/town-and-country-planning-general-permitted-development-order-1995/schedule-2/part-22/crossheading-class-a/paragraph-A.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.