# Building Safety (Wales) Act 2026, Section 3: Meaning of “building”

Extent: E+W

(1) This section sets out the meaning of “building” for the purposes of section 2.
(2) In the case of a structure that is not attached to another structure (an “unattached structure”), that structure is a building.
(3) In the case of structures that are attached to each other, those structures and any constructions attaching them (together a “set of structures”) are a building.
(4) But subsections (2) and (3) are subject to subsection (5).
(5) If an unattached structure or set of structures contains any independent parts, each independent part is a building (see section 4).
(6) In this section “structure” means a roofed construction with walls (whether or not the construction includes parts that do not have a roof or walls).

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Source: https://www.legislation.gov.uk/asc/2026/5/section/3 (the official version)
Page: https://openlegislation.uk/building-safety-wales-act-2026/section-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.