# The Town and Country Planning (Mayor of London) Order 2008, Paragraph 3


In deciding whether to treat an application for planning permission (referred to in this paragraph as “the relevant application”) as an application for planning permission for more substantial development, a local planning authority must take into account other development of the same land or adjoining land—
(a) in respect of which an application for planning permission has been made but not finally determined on the date the relevant application is received by the local planning authority;
(b) in respect of which planning permission has been granted within the period of five years immediately preceding that date;
(c) substantially completed within the period of five years immediately preceding that date.

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Source: https://www.legislation.gov.uk/uksi/2008/580/schedule/paragraph/3 (the official version)
Page: https://openlegislation.uk/town-and-country-planning-mayor-of-london-order-2008/schedule/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.