{
  "url": "https://openlegislation.uk/building-regulations-northern-ireland-2012/regulation-43A",
  "json_url": "https://openlegislation.uk/building-regulations-northern-ireland-2012/regulation-43A.json",
  "legislation": "nisr/2012/192",
  "legislation_title": "The Building Regulations (Northern Ireland) 2012",
  "legislation_url": "https://openlegislation.uk/building-regulations-northern-ireland-2012",
  "path": "regulation/43A",
  "kind": "regulation",
  "number": "43A",
  "heading": "Consideration of high-efficiency alternative systems",
  "text": "(1) Where a building is to be erected, the person carrying out the work shall, before construction begins, undertake an analysis of and give consideration to the use of available high-efficiency alternative systems in the work. Such systems include—\n(a) decentralised energy supply systems based on energy from renewable sources;\n(b) cogeneration;\n(c) district or block heating or cooling, particularly where it is based entirely or partially on energy from renewable sources; and\n(d) heat pumps.\n(2) The analysis referred to in paragraph (1)—\n(a) shall be documented and take into account the technical, environmental and economic feasibility of using high-efficiency alternative systems;\n(b) may be carried out for individual buildings or for groups of similar buildings or for common typologies of buildings in the same area; and\n(c) in so far as it relates to collective heating and cooling systems, may be carried out for all buildings connected to the system in the same area.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Regs. 43A, 43B inserted (25.2.2014) by The Building (Amendment) Regulations (Northern Ireland) 2014 (S.R. 2014/44), regs. 1, 6(4) (with reg. 3)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/2012/192/regulation/43A",
    "retrieved_at": "2026-10-29T01:15:53.727465+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."
}