{
  "url": "https://openlegislation.uk/building-amendment-regulations-2004/schedule",
  "json_url": "https://openlegislation.uk/building-amendment-regulations-2004/schedule.json",
  "legislation": "uksi/2004/1465",
  "legislation_title": "The Building (Amendment) Regulations 2004",
  "legislation_url": "https://openlegislation.uk/building-amendment-regulations-2004",
  "path": "schedule",
  "kind": "schedule",
  "number": null,
  "heading": "PART C OF SCHEDULE 1 TO THE BUILDING REGULATIONS 2000, AS SUBSTITUTED BY THESE REGULATIONS",
  "text": "Requirement\nLimits on application\nPART C SITE PREPARATION AND RESISTANCE TO CONTAMINANTS AND MOISTURE\nPreparation of site and resistance to contaminants\nC1. —\n(1) The ground to be covered by the building shall be reasonably free from any material that might damage the building or affect its stability, including vegetable matter, topsoil and pre-existing foundations.\n(2) Reasonable precautions shall be taken to avoid danger to health and safety caused by contaminants on or in the ground covered, or to be covered by the building and any land associated with the building.\n(3) Adequate sub-soil drainage shall be provided, if it is needed to avoid–\n(a) the passage of ground moisture to the interior of the building;\n(b) damage to the building, including damage through the transport of water-borne contaminants to the foundations of the building.\n(4) For the purposes of this requirement, “contaminant” means any substance, which is or may become harmful to persons or buildings including substances, which are corrosive, explosive, flammable, radioactive or toxic.\nResistance to moisture\nC2. The walls, floors and roof of the building shall adequately protect the building and people who use the building from harmful effects caused by–\n(a) ground moisture;\n(b) precipitation including wind-driven spray;\n(c) interstitial and surface condensation; and\n(d) spillage of water from or associated with sanitary fittings or fixed appliances.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2004/1465/schedule",
    "retrieved_at": "2026-10-29T05:24:25.944149+00:00",
    "licence": "OGL-UK-3.0",
    "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."
  }
}