# The Building Regulations 2010, Regulation 5: Meaning of material change of use


For ... the purposes of these Regulations, there is a material change of use where there is a change in the purposes for which or the circumstances in which a building is used, so that after that change—
(a) the building is used as a dwelling, where previously it was not;
(b) the building contains a flat, where previously it did not;
(c) the building is used as an hotel or a boarding house, where previously it was not;
(d) the building is used as an institution, where previously it was not;
(e) the building is used as a public building, where previously it was not;
(f) the building is not a building described in classes 1 to 6 in Schedule 2, where previously it was;
(g) the building, which contains at least one dwelling, contains a greater or lesser number of dwellings than it did previously;
(h) the building contains a room for residential purposes, where previously it did not;
(i) the building, which contains at least one room for residential purposes, contains a greater or lesser number of such rooms than it did previously; ...
(j) the building is used as a shop, where previously it was not ; or
(k) the building is a building described in regulation 7(4)(a), where previously it was not.

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Source: https://www.legislation.gov.uk/uksi/2010/2214/regulation/5 (the official version)
Page: https://openlegislation.uk/building-regulations-2010/regulation-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.