




BRANZ research into the embodied carbon and operational carbon emissions of buildings aims to provide solutions to mitigate negative effects on the environment. Our research examines the entire life cycle of buildings, from extraction and production of materials, through design, construction and occupant behaviours to end of life.
Climate change and the transition to a zero-carbon built environment
BRANZ is working with partners to help the industry reduce greenhouse gas emissions and be better prepared to cope with the changes. The work comes under the umbrella of the Transition to a zero-carbon built environment programme. The aim of this programme is that, by 2050, the building and construction industry is delivering net-zero carbon buildings in an affordable way.
Calculators and tools
BRANZ has developed a suite of tools to help designers and architects to design buildings with reduced carbon emissions.
Background to Carbon calculators and tools
The purpose of the New Zealand whole-building whole-of-life framework is to provide information and resources to facilitate more consistent calculation of potential environmental impacts of New Zealand buildings across the building life cycle using a technique called life cycle assessment.
Research and resources
We support industry with a range of resources including calculation tools, bulletins and study reports, articles and fact sheets.
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Transition to a zero-carbon built environment
Providing research support for an industry-led transition to a zero-carbon built environment through decarbonising across the whole building life cycle and encouraging industry leadership and decision making to manage climate change mitigation.
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REBRI: Resource efficiency in the building and related industries
Reducing the amount of building material wastes generated at construction and demolition sites that would otherwise be sent to landfill.
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Household Energy End-use Project (HEEP)
A long-term study that measured and modelled the way energy is used in New Zealand households.
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Building Energy End-use Study (BEES)
A nationwide survey examining energy and water consumption in a sample of predominantly commercial buildings with the aim to improve energy efficiency in the sector.
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Level: The authority on sustainable building
Level will help you design and build homes that have less impact on the environment and are healthier and more comfortable and have lower running costs.
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Examples of work
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SR426 Measuring our sustainability progress: First update
This report examines New Zealand’s new-build residential sustainability aspects as part of an ongoing BRANZ longitudinal study.
Download [PDF, 5.7MB] -
SR403 The built environment and climate change
An overview of the global and New Zealand response to climate change and an assessment of New Zealand research related to residential housing and climate change.
Download [PDF, 2.1MB] -
SR351 New Zealand whole-building whole-of-life framework: Datasheet development
Information on the methods used to develop the datasheets in the New Zealand whole-building whole-of-life framework to support building life cycle assessment.
Download [PDF, 3.0MB] -
SR350 New Zealand whole-building whole-of-life framework: Reference buildings
To help designers to understand the life cycle environmental implications of their designs based on LCA, reference office buildings have been developed to act as comparators during the design process.
Download [PDF, 6.6MB] -
SR349 New Zealand whole-building whole-of-life framework: An overview
The framework provides information and data for use when carrying out building life cycle assessment, environmental indicators for reporting and calculated life cycle environmental indicators for 10 New Zealand reference office buildings.
Download [PDF, 6.2MB] -
SR342 Measuring our sustainability progress: Benchmarking
This report examines New Zealand’s new-build residential sustainability aspects as part of an ongoing BRANZ longitudinal study.
Download [PDF, 2MB] -
SR276 Application of environmental profiling: Key features
An executive summary of a plan to establish a whole-building whole-of-life assessment framework in New Zealand based on research carried out into environmental profiling in New Zealand..
Download [PDF, 2.3MB] -
SR275 Application of environmental profiling: A plan for New Zealand
The full text of a plan to establish a whole-building whole-of-life assessment framework in New Zealand, based on research carried out by BRANZ.
Download [PDF, 4.7MB] -
SR272 Review of LCA use in international building environment rating tools
In this report, examples of international building environmental rating tools have been reviewed and a list of desirable attributes for a New Zealand scheme compiled.
Download [PDF, 731KB]