5Definition of building work

#### 5 Definition of building work (1) Subject to subsections (2), (3) and (4), building work means any of the following activities: (a) the construction, alteration, extension, restoration, repair, demolition or dismantling of buildings, structures or works that form, or are to form, part of land, whether or not the buildings, structures or works are permanent; (b) the construction, alteration, extension, restoration, repair, demolition or dismantling of railways (not including rolling stock) or docks; (c) the installation in any building, structure or works of fittings forming, or to form, part of land, including heating, lighting, air‑conditioning, ventilation, power supply, drainage, sanitation, water supply, fire protection, security and communications systems; (d) any operation that is part of, or is preparatory to, or is for rendering complete, work covered by paragraph (a), (b) or (c), for example: (i) site clearance, earth‑moving, excavation, tunnelling and boring; (ii) the laying of foundations; (iii) the erection, maintenance or dismantling of scaffolding; (iv) the on‑site prefabrication of made‑to‑order components to form part of any building, structure or works; (v) site restoration, landscaping and the provision of roadways and other access works; but does not include any of the following: (e) the drilling for, or extraction of, oil or natural gas; (f) the extraction (whether by underground or surface working) of minerals, including tunnelling or boring, or constructing underground works, for that purpose; (g) any work that is part of a project for: (i) the construction, repair or restoration of a single‑dwelling house; or (ii) the construction, repair or restoration of any building, structure or work associated with a single‑dwelling house; or (iii) the alteration or extension of a single‑dwelling house, if it remains a single‑dwelling house after the alteration or extension. (2) Paragraph (1)(g) does not apply if the project is part of a multi‑dwelling development that consists of, or includes, the construction of at least 5 single‑dwelling houses. (3) Subject to subsection (4), building work includes any activity that is prescribed by the regulations for the purposes of this subsection. (4) Building work does not include any activity that is prescribed by the regulations for the purposes of this subsection. (5) In this section: > land includes land beneath water.