Agencies must use a sustainable building rating system for new government owned non-residential buildings.
The Carbon Neutral Government Programme (CNGP) is a long-term work programme that aims to make a number of government organisations carbon neutral by 2025.
The priority is to reduce emissions by:
Sustainable building rating systems (rating tools) consider a broad range of environmental and social factors, and provide a benchmark against which a buildings sustainability performance can be considered. The main benefit of rating tools is that they encourage a targeted focus on key areas, such as reducing embodied and operational carbon, and consistent application of processes to support achieving sustainable outcomes.
The use of rating tools, with a targeted focus on reducing embodied and operational carbon, supports the longer term intent of the building for climate change programme.
Agencies that are subject to the Property Functional Lead mandate with office accommodation over 2,000m2 are required to begin the NABERSNZ assessment process at the next available opportunity (such as a lease renewal). NABERSNZ is designed to rate the operational energy and energy-related emissions performance of office buildings once they have been built and are in use. The introduction of rating tools is complementary to the requirement to use NABERSNZ.
Procurement mandated agencies are required to use an approved sustainable building rating tool when building a new government owned non-residential building with an estimated capital value of:
Procurement mandated agencies are those agencies that are required to apply the Government Procurement Rules.
This tool will assist you in determining if a project is in scope of this policy.
This requirement applies to new government owned non-residential buildings which are being built and will be owned by agencies.
The term building has the same meaning as in section 8 of the Building Act 2004. The exclusions set out in Clause A2 of Schedule 1 of the Building Regulations 1992 apply.
Green Star NZ Design and As Built (Green Star) can be used to rate most new non-residential building types, including mixed use developments. Any buildings that are ineligible for a Green Star rating are not within scope of this policy.
If you need clarification on how a specific type of building fits within the Green Star rating tool, email the New Zealand Green Building Council.
Agencies must adopt the use of the Green Star rating tool to the extent possible. However, there may be limited circumstances where an agency considers it may not be appropriate due to the particular building’s use or type or is ineligible for Green Star certification. New Zealand Government Procurement is developing guidance for building.
New Zealand Government Procurement is responsible for maintaining the list of approved rating tools.
Guidance on how other sustainable building rating tools can be assessed and approved by New Zealand Government Procurement is being developed.
When using the Green Star rating tool agencies will need to certify the design and build to a minimum 5 star Green Star rating.
Green Star operates on a system of 100 points, plus 10 innovation points. Reaching a 5 star rating requires achieving 60-74 points.
When reaching a 5 star Green Star rating, agencies are required to achieve minimum points for the following Green Star credits:
|Credit||Minimum points required|
|Credit 15: Greenhouse gas emissions||8 of 20 points|
|Credit 19: Life cycle impacts/Life cycle assessment credit||4 of 7 points|
|Credit 22: Construction and demolition waste||1 of 1 point|
|Credit 8B: Operational waste||1 of 1 point|
|Credit 2: Commissioning and tuning||2 of 4 points|
|Credit 9: Indoor air quality||1 of 4 points|
|Credit 14: Thermal comfort||1 of 2 points|
|Total minimum points||18 out of 39|
Agencies can make up the remaining points in areas that are aligned with their strategic or operational objectives.
There are some costs associated with using the Green Star rating tool to certify a building.