{
  "url": "https://openlegislation.uk/building-regulations-northern-ireland-2000/regulation-F1",
  "json_url": "https://openlegislation.uk/building-regulations-northern-ireland-2000/regulation-F1.json",
  "legislation": "nisr/2000/389",
  "legislation_title": "Building Regulations (Northern Ireland) 2000",
  "legislation_url": "https://openlegislation.uk/building-regulations-northern-ireland-2000",
  "path": "regulation/F1",
  "kind": "regulation",
  "number": "F1",
  "heading": "Application and interpretation",
  "text": "(1) Subject to paragraphs (2) and (3) this Part shall apply to any building and, where a building contains one or more dwellings, to each such dwelling separately.\n(2) Regulation F2 shall not apply to—\n(a) an external wall, floor or roof of any part of a dwelling which consists of—\n(i) a shed or store entered solely from outside; or\n(ii) a boathouse, conservatory, garage or porch;\n(b) a building, other than a dwelling, which has a floor area not exceeding 30 m2; and\n(c) a building or part of a building, other than a dwelling, which—\n(i) in the case of a building for industrial or storage purposes – is unheated or has a space heating system with a design output rating not exceeding 50 W per square metre of floor area; or\n(ii) in the case of any other building – is unheated or has a space heating system with a design output rating not exceeding 25 W per square metre of floor area.\n(3) Regulation F3(2) shall not apply to—\n(a) a dwelling;\n(b) the common parts of a building which are intended for the exclusive use of two or more dwellings; and\n(c) a building in which the floor area provided with artificial lighting does not exceed 100 m2.\n(4) In this Part—\nspace heating system andhot water supply system do not include a system or that part of a system which heats or stores water solely for a commercial or industrial process; and\npipes and ducts means any pipe and any duct in a space heating system or hot water supply system which is intended to carry a heated liquid or gas, and includes associated fittings.",
  "extent": "N.I.",
  "status": "prospective",
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "coming into force",
      "affecting": "nisr/2000/389",
      "affecting_title": "Building Regulations (Northern Ireland) 2000"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/2000/389/regulation/F1",
    "retrieved_at": "2026-10-29T02:13:38.985369+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}