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


Development is not permitted by Class F if—
(a) the height of the flue would exceed the highest part of the roof by one metre or more; or
(b) in the case of land within a conservation area or a World Heritage Site, the flue would be installed on a wall or roof slope forming the principal or side elevation of the dwellinghouse and which fronts a highway.

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Source: https://www.legislation.gov.uk/uksi/1995/418/schedule/2/part/40n1/paragraph/F.1 (the official version)
Page: https://openlegislation.uk/town-and-country-planning-general-permitted-development-order-1995/schedule-2/part-40n1/paragraph-F.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.