Building Regulations 2010 C1
Preparation of site and resistance to contaminants
Official text
C1.—(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.
(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.
(3) Adequate sub-soil drainage shall be provided, if it is needed to avoid—
(a) the passage of ground moisture to the interior of the building;
(b) damage to the building, including damage through the transport of water-borne contaminants to the foundations of the building.
(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.
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