28 GLOUCESTER STREET CHRISTCHURCH CENTRAL 8013

Green Zone, Technical Category 3, blue

  • Land classified as green means that homes are suitable for repair and rebuild.

    Key points to note

    • Land generally suitable for houses to be repaired or rebuilt.
    • Property owners should talk directly with their insurer or EQC about repairs.
    • EQC is currently coordinating an area-wide TC3 drilling programme. The information gained from this programme will help in making decisions about how to repair or rebuild foundations for houses on TC3 land.
    • EQC and insurers, in consultation with the home owner, will make decisions about foundation repairs or reconstruction based on professional advice.
    • Testing will not necessarily need to take place on every affected property in order to get adequate information for foundation design.
    • EQC has been working closely with both Building and Housing and local councils to ensure the onsite testing will meet building consent requirements.
    • If additional or site-specific geotechnical information is required to determine the appropriate foundation solution for an individual TC3 property, EQC will be responsible for obtaining this information if the claims are under cap. In all other cases the insurer will be responsible for this work.
    • Repair and rebuilding work should take into consideration the risk of ongoing aftershocks, so some finishing tasks such as brick and driveway concrete laying should be delayed until that risk decreases.

    Further information about the EQC TC3 drilling programme »

    What does Technical Category 3 (TC3, blue) mean?

    Some properties in the green zone have experienced liquefaction-related land damage and considerable settlement during the sequence of Canterbury earthquakes. While land in the green zone is still generally considered suitable for residential construction, houses in some areas will need more robust foundations or site foundation design where foundation repairs or rebuilding are required.

    Technical Category 3 (TC3, blue) means that moderate to significant land damage from liquefaction is possible in future significant earthquakes. Site-specific geotechnical investigation and specific engineering foundation design is required.

    There is no one-size-fits-all solution for homes in Technical Category 3 (TC3) that require repairs to foundations or need to be rebuilt. Foundations designed for homes in TC3 will be site specific and may involve deep foundation piles.

    Site-specific geotechnical investigation will identify the best foundation design for your property to reduce the risk of injury to people and damage to your property in future earthquakes.

    Detailed information about foundation requirements is available on the Ministry of Business, Innovation and Employment (MBIE)'s Building & Housing website.

    Further information about green zone technical categories »

    What happens next?

    The above zoning information is correct to the best of our knowledge at the time of publishing.

  • 16 July 2014
    The public is being invited to have its say on the vision for inner city living in Christchurch. Today the Christchurch Central Development Unit (CCDU) released the Draft Residential Chapter of the Christchurch Central Recovery Plan – A Liveable City - which puts forward the vision and framework for residential development within the city’s four avenues, and initiatives to stimulate development.
  • 28 April 2014
    Progress on Christchurch’s new Bus Interchange will be aligned with the infrastructure rebuild to minimise the disruption to road users and businesses.
  • 24 December 2013
    A range of services will remain open through the Christmas and New Year holiday period in order to ensure Canterbury people in need can access the appropriate support and assistance.
  • 23 December 2013
    Work will get underway next month at the former CTV Building site to provide a more welcoming environment for remembrance of those who lost their lives there. The Canterbury Earthquake Recovery Authority has produced an interim plan for the site and shared it with families it has contact details for that lost loved ones when the CTV Building collapsed in the February 2011 earthquake.
  • How will the land be remediated, who will organise it and who will pay?

    To avoid confusion, we need to be clear that TC categories apply only to foundation systems, not land remediation.

    EQC is responsible for remediating the land under a house and within eight metres of the buildings. Land within 60 metres of the house which forms the main accessway is also covered.

    EQC advises it only looks to return the land to the condition it was in before the earthquake.

    In general, EQC will either pay for the repairs to any land damage caused by the Canterbury earthquakes, or if repair is not possible or not economic, EQC will pay the landowner the maximum insured value of the land which is calculated by reference to the value of the minimum lot size prior to the earthquake in the area you live in.

    For example if you have:

    1. Minor land damage – EQC may settle your claim directly with you.
    2. House damage and minor land damage – if your house repair is being managed by EQC through Fletcher Construction then land repairs will be managed as part of the whole property rebuild.
    3. Opted out of Fletcher repair process – EQC will work with you to determine who manages the repairs to your land.
  • Will EQC decide that it’s too difficult (or costly) to remediate my land and will they then feed this back to CERA and make the green TC3 land red?

    EQC will cash settle with the homeowner (or mortgagee) if the repairs to the land exceed its maximum liability for land damage (which equals the value of the minimum lot size in the relevant area). The homeowner will still own the land and it will be up to the homeowner and their insurer to decide what course of action to take, depending on the individual insurance policy and if there are any other options for repairing the land.

    EQC is not referring properties to CERA for rezoning in any circumstance.

  • What is the difference between the technical categories?

    Land in the green zone has been divided into three technical categories. These categories describe how the land is expected to perform in future earthquakes.

    Technical category 1 (TC1) - grey

    Future land damage from liquefaction is unlikely. You can use standard foundations for concrete slabs or timber floors. Foundation requirements changed in 2011 and information is available on the MBIE, Building and Housing Group website.

    Technical category 2 (TC2) - yellow

    Minor to moderate land damage from liquefaction is possible in future significant earthquakes.

    You can use standard timber piled foundations for houses with lightweight cladding and roofing and suspended timber floors or enhanced concrete foundations – i.e. more robust floor slabs that better tie the structure together as outlined in the Department of Building and Housing 2010 Guidance on house repairs and reconstruction following the Canterbury earthquake. More information is available on the on the MBIE, Building and Housing Group website.

    Technical category 3 (TC3) - blue

    Moderate to significant land damage from liquefaction is possible in future significant earthquakes. Site-specific geotechnical investigation and specific engineering foundation design is required.

    Related information

    Residential green zone technical categories

  • Top green zone technical category 3 questions

    What do I need to do to ensure my repairs meet Building Code requirements?

    For houses that have earthquake damage that do not involve repairs to foundations, repairs should be able to proceed without geotechnical assessments.

    For houses requiring foundation repairs or new foundations, homeowners in Technical Category 3 (TC3) will need site-specific geotechnical assessment and specific engineering foundation design.

    What do you mean by specific engineering foundation design?

    There is no one-size-fits-all solution for homes in Technical Category 3 (TC3) that require repairs to foundations or need to be rebuilt. Foundations designed for homes in TC3 will be site specific and may involve deep foundation piles.

    Site-specific geotechnical investigation will identify the best foundation design for
    your property to reduce the risk of injury to people and damage to your property in future earthquakes.

    What if my house wasn’t damaged in the earthquakes and is in TC3?

    The technical categories only apply to houses that require their foundations to be repaired or rebuilt due to damage from the earthquakes. If your house was not damaged by the earthquakes then you will not need to upgrade your foundations.

    How much is this likely to cost?

    Costs will vary from property to property. The Department of Building and Housing is conducting a research trial to test a range of innovative foundation solutions for houses in Technical Category 3. It will develop further guidance for properties in TC3 when it has tested these foundation options.

    What help is available if I need to move out while repairs are carried out on my earthquake damaged home?

    Homeowners who need to temporarily move out of their earthquake damaged homes while repairs are undertaken may be eligible for Government supported temporary accommodation options.

    Financial assistance may also be available to help cover temporary accommodation costs.

    For more information visit www.quakeaccommodation.govt.nz or call 0800 67 32 27.

    What should I do first?

    If you need to rebuild or carry out repairs to foundations and your house is in Technical Category 3 (TC3) you are advised to talk to your insurer in the first instance.

    Your insurer should be able to arrange for a geotechnical engineer to carry out an assessment of your property as part of your claims process.

    Where can I find more information?

    More information is available on the MBIE, Building and Housing Group website.

In this section you will find information about the various types of support and assistance that are available, in these categories:

Earthquake assistance centres

These are centres where you can access staff and information from a range of agencies about earthquake-related matters. The centres also provide information and assistance for red zone homeowners who have insurance and are deciding about the government offer.

Find out more »

Housing

There is information here about temporary accommodation options, affordable section development projects for residential red zone homeowners, and a collection of useful links covering different property types and situations, including rentals.

Find out more »

Financial assistance

This is a collection of information about financial, debt, tax and accommodation assistance and services available to individuals and businesses affected by the earthquakes.

Find out more »

Health and wellbeing

This section explains about the Earthquake Support Coordinators, who are available for free to assist people in navigating their way through the wide range of services available. It also gives the location of the Recovery Information Kiosks.

The health and wellbeing services and links covered here include:

  • various options for counselling and support services, including for Māori, new migrants, and those affected by family violence
  • energy advice and assistance with keeping warm at home
  • handling food and drink during an emergency

Find out more »

Community organisations

We’ve provided links to websites across greater Christchurch that can inform you of local community activities and events as well as innovative community initiatives taking place in your community.

Find out more »

Residential Advisory Service

The Residential Advisory Service (RAS) provides free, independent help to residential property owners who are facing challenges in getting their home repaired or rebuilt after it has been damaged by the Canterbury earthquakes. The service helps you to understand the process you are going through and to make progress in your repairs or rebuild.

For further information about the service visit the Residential Advisory Service website www.advisory.org.nz

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