"The Home Builder shall appoint a Competent Person to investigate any proposed townships or existing township areas which are underlain by dolomites/limestones. The Competent Person shall prepare a clearly motivated report in which the township stability is zoned in terms of Part 1, Section 2, Table 8 in accordance with prevailing professional practice. The report must detail any precautionary measures which are required to reduce the risk of sinkhole formation / subsidence and any restrictions on land usage, layout, erf sizes, density, services, etc. The report shall be submitted to the Council for Geosciences for their confirmation that the investigations conducted on the stability of dolomites/limestones and referred to in the report are, in their opinion, consistent with sound professional practice and that the investigations meet all legal requirements pertaining to such stability investigations."