Where the local municipality has reason to believe that a site upon which a building is to be erected:
- is situated on contaminated land;
- is situated on potentially unstable land to the extent, insofar as risk can reasonably be foreseen, that ground movements caused by land-slip, slope stability or subsidence may impair the stability of the building or part thereof or pose a threat to the safety of occupants; or
- is underlain by subsoils which have the potential to cause foundation movements caused by swelling, consolidation, shrinkage or settlements and as a result may impair the stability of the building or part thereof;
it must on receipt of an application for the erection of the building inform the applicant accordingly.