4.1Land quality – managing ground conditions

This chapter gives guidance on meeting the Technical Requirements for assessing and managing land quality.


This chapter provides a framework for managing geotechnical and contamination risks, with the objective of ensuring that:

  • all sites are properly assessed and investigated for potential geotechnical and contamination hazards
  • foundations and substructure designs are suitable for the ground conditions
  • sites are properly remediated where necessary or appropriate, and design precautions are taken
  • appropriate documentation and verification is provided to NHBC.