Building in Port Hills’ toe slump areas of mass movement (classes II and III) - FAQs

About this document

  • Published on 5 December 2013
  • Of interest to Building consent authorities, Builders, Designers, Engineers
  • 1st edition


You may find these questions and answers useful in understanding the supplementary guidance Building in Port Hills’ toe slump areas of mass movement (classes II and III).


MBIE prepared the supplementary guidance specifically to help:

  • structural and geotechnical engineers, architects, and insurers work out the best design solutions for specific areas
  • Christchurch City Council’s building consenting staff make consenting decisions.

This followed Christchurch City Council’s (the Council's) release of the GNS Science Report.

It is supplementary to the guidance Repairing and rebuilding houses affected by the Canterbury earthquakes, and includes:

  • high-level geotechnical and structural design principles and criteria
  • structural system and house layout recommendations to account for potential land movement.

Building in toe slump areas of mass movement in the Port Hills (Class II and Class III) is the full supplementary guidance.

This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: