# The Building Safety Levy (England) Regulations 2025, Regulation 6: “Major residential development” etc

Extent: E+W

(1) Subject to paragraphs (2) and (3), “major residential development” means development resulting in the provision of—
(a) at least 10 dwellings, or
(b) at least 30 bedspaces in purpose-built student accommodation.
(2) If development relates to a building which, immediately before the development, contains dwellings (the “pre-development dwellings”) and after the development the building contains a different number of dwellings (the “post-development dwellings”) then, for the purposes of paragraph (1), the development only results in the provision of at least 10 dwellings if the number of post-development dwellings is at least 10 more than the number of pre-development dwellings.
(3) If development relates to a building which, immediately before the development, contains bedspaces in purpose-built student accommodation (the “pre-development bedspaces”) and after the development the building contains a different number of bedspaces (the “post-development bedspaces”) then, for the purposes of paragraph (1), the development only results in the provision of at least 30 bedspaces in purpose-built student accommodation if the number of post-development bedspaces is at least 30 more than the number of pre-development bedspaces.
(4) “Bedspace”, in relation to purpose-built student accommodation, means a sleeping area for one person (which may be in the same room as a bedspace for another person).

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Source: https://www.legislation.gov.uk/uksi/2025/1236/regulation/6 (the official version)
Page: https://openlegislation.uk/building-safety-levy-england-regulations-2025/regulation-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.