{
  "url": "https://openlegislation.uk/building-act-1984/section-51B",
  "json_url": "https://openlegislation.uk/building-act-1984/section-51B.json",
  "legislation": "ukpga/1984/55",
  "legislation_title": "Building Act 1984",
  "legislation_url": "https://openlegislation.uk/building-act-1984",
  "path": "section/51B",
  "kind": "section",
  "number": "51B",
  "heading": "Effect of amendment notice",
  "text": "(1) For the purposes of the enactments specified in section 48(3) above—\n(a) the giving of an amendment notice accompanied by such plans as are referred to in section 51A(2)(b) above shall be treated as the making of an application for building control approval,\n(b) the acceptance or rejection of an amendment notice shall be treated as the approval or rejection of the application,\n(c) where an initial notice is varied by an amendment notice, the plans treated as accompanying the application for building control approval shall be treated—\n(i) as including the plans accompanying the amendment notice, and\n(ii) as excluding such of the plans previously treated as accompanying the application as are superseded by the plans accompanying the amendment notice, and\n(d) where an initial notice has been varied by an amendment notice and the initial notice ceases to be in force under section 53A, the application for building control approval (treated by virtue of paragraph (a) as made) is to be treated as if it was not made (and the approval was not given).\n(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .",
  "extent": "E+W",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Ss. 51A, 51B, 51C inserted (14.10.1996) by S.I. 1996/1905, art.2"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Words in s. 51B(1)(a) substituted (1.10.2023 except in relation to W., 1.7.2026 for W.) by Building Safety Act 2022 (c. 30), s. 170(4)(b)(c), Sch. 5 para. 43(a); S.I. 2023/993, reg. 2(n)(xvi); S.I. 2025/1368, reg. 2(u)"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Words in s. 51B(1)(b) substituted (1.10.2023 except in relation to W., 1.7.2026 for W.) by Building Safety Act 2022 (c. 30), s. 170(4)(b)(c), Sch. 5 para. 43(b); S.I. 2023/993, reg. 2(n)(xvi); S.I. 2025/1368, reg. 2(u)"
    },
    {
      "type": "F",
      "label": "F4",
      "text": "Words in s. 51B(1)(c) substituted (1.10.2023 except in relation to W., 1.7.2026 for W.) by Building Safety Act 2022 (c. 30), s. 170(4)(b)(c), Sch. 5 para. 43(c)(i); S.I. 2023/993, reg. 2(n)(xvi); S.I. 2025/1368, reg. 2(u)"
    },
    {
      "type": "F",
      "label": "F5",
      "text": "Words in s. 51B(1)(c)(ii) substituted (1.10.2023 except in relation to W., 1.7.2026 for W.) by Building Safety Act 2022 (c. 30), s. 170(4)(b)(c), Sch. 5 para. 43(c)(ii); S.I. 2023/993, reg. 2(n)(xvi); S.I. 2025/1368, reg. 2(u)"
    },
    {
      "type": "F",
      "label": "F6",
      "text": "Words in s. 51B(1)(d) substituted (1.10.2023 except in relation to W., 1.7.2026 for W.) by Building Safety Act 2022 (c. 30), s. 170(4)(b)(c), Sch. 5 para. 43(d); S.I. 2023/993, reg. 2(n)(xvi); S.I. 2025/1368, reg. 2(u)"
    },
    {
      "type": "F",
      "label": "F7",
      "text": "S. 51B(2) repealed (1.10.2006) by Regulatory Reform (Fire Safety) Order 2005 (S.I. 2005/1541), art. 1(3), Sch. 2 para. 33(3), Sch. 4 (with art. 49) (as amended by The Regulatory Reform (Fire Safety) Subordinate Provisions Order 2006 (S.I. 2006/484), arts. 1(1), 2)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukpga/1984/55/section/51B",
    "retrieved_at": "2026-10-29T10:01:04.213182+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."
}