Green Star Technical Clarification Rulings
Technical Clarifications for Green Star represent our answers to Technical Questions submitted by projects, and provide further guidance and reference to others. The list is regularly updated.
There are two types of Technical Clarifications listed in the table below:
General Clarifications
These are extensions to the guidance provided in the Submission Guidelines. They clarify and sometimes supersede the original Credit Criteria or
Compliance Requirements. General Clarifications set precedent for future project teams to follow. Should a project team wish to apply a general clarification to its project, there is no requirement for further Technical Questions to be submitted. NZGBC Assessors will also use them as precedents to assess submissions.
Project Specific Clarifications
These are published as references for other projects but, unlike General Clarifications, they do not set precedent. They often relate to special
situations where multiple prerequisites exist for a particular project and are less likely to reoccur to another project. Therefore, rulings set for Project Specific Clarifications are often conditional and will likely vary for other projects. Each project still needs to submit its own Technical Questions and provides evidence relating to its own building in order to have a similar ruling approved for that specific building.
Should you wish to apply any Technical Clarification for legacy rating tools to your projects, please submit a Technical Question to the NZGBC to
explain why and how it applies. You can download the Technical Question form here
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Technical Question Title | Clarification Type | Tool Version | Month Released | Credit Name | Sub-credit Name | Amendment/Approved Ruling |
---|---|---|---|---|---|---|
Definition of "Minor Local Contamination" | General | DABv1 | August 2021 | 24 - Sustainable Sites | Contamination and Hazardous Materials |
For the sake of clarity, "minor local contamination" should be interpreted as contamination that would not trigger soil remediation under the National Environmental Standard for Assessing and Managing Contaminants in Soil. |
Drop-off Lanes/Spaces | General | DABv1 | May 2021 | 17 - Sustainable Transport | Sustainable Transport |
Where drop-off lanes/spaces are provided, these can be excluded in the total number of car parks used to demonstrate compliance. In order to be excluded, drop-off spaces on the drawings submitted must show that the spaces/lanes are marked to indicate “no stopping at all times” (or similar) and the design should clearly indicate they are drop-off lanes rather than car parks. |
Walking School Buses | General | DABv1 | May 2021 | 17 - Sustainable Transport | Sustainable Transport |
Walking School Buses are eligible for points under the Private Mass Transport component of this credit. However, the Walking School Bus service must meet the catchment, frequency and contractual requirements set out in the Technical Manual in order to be awarded any points. |
Reduction of Carparks | General | DABv1 | March 2021 | 17 - Sustainable Transport | Reduced Car Parking Provision |
Projects that reduce the existing number of carparks (net total) on existing campuses (while also providing new carparks) also meet the credit criteria. |
Model Daylight for Floorplates | General | DABv1 | April 2022 | 12 - Visual Comfort | Daylight |
A project may use a sample approach to model daylight for ascending uniform floorplates for the purpose of demonstrating compliance where:
The approach is allowed where:
Documentation Requirements: Please provide the following in your submission:
All other requirements are as per the submission guidelines. |
LCA Credit Targeting - use Reference Building Guidance in section 8.2 | General | DABv1.1 | July 2023 | 19 - Life Cycle Assessment/Impacts | Comparative Life Cycle Assessment |
All projects targeting the LCA credit under both versions of Design & As Built NZv1.0 (credit 19A.1) and v1.1 (credit 19.2) should use the reference building guidance located in section 8.2 of the Green Star NZ Embodied Carbon Methodology. This section should provide guidance on materials and typology often referenced in relation to LCA. Where projects are following this guidance for the reference building, please make this clear in the submission template comment box. |
Highest Level of Filtration in FCU is G2 | General | DABv1, DABv1.1 | December 2022 | 9 - Indoor Air Quality | Ventilation System Attributes |
Where the highest level of filtration possible in the FCU is G2, i.e. in smaller FCUs, and only access downstream of the heating/cooling coils is possible then:
Project teams wishing to use this approach should include evidence of the following in their submission:
|
Revision of Credit 25 | General | DABv1 | July 2020 | 25 - Stormwater | Stormwater |
Credit 25. Stormwater in Green Star Design & As-Built has been updated. The revised credit shall be used for Green Star projects and it supersedes the previous revision published in March 2020 |
Office Spaces in Lighting Comfort | General | DABv1 | October 2019 | 11 - Lighting Comfort | General Illuminance and Glare Reduction |
The guidance reference for 'Office Spaces' in the Lighting Comfort - General Illuminance and Glare Reduction credit criterion is updated to Table E1 of AS/NZS 1680.2.2:2008 'Interior and workplace lighting Part 2.2: Specific applications - Office and screen-based tasks'. |
CarboNZero for Building Operations | General | DABv1 | September 2021 | 5 - Commitment to Performance | Environmental Building Performance |
Given that the CarboNZero for Building Operations certification for buildings requires energy and water efficiency intrinsically through buildings’ performance stages, it is acceptable for project teams to show commitment to the CarboNZero for Building Operations instead of a Green Star Performance rating to achieve the point for 5.1 Environmental Building Performance. This pathway may only be used for projects that have been registered for a CarboNZero certification or have shown formal commitment through formal agreements or policies. |