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  BRANZ tools and resources for climate action

BRANZ has an extensive range of resources related to climate change and its impacts. 


The Building Energy End-use Study (BEES) was a 6-year BRANZ project monitoring and analysing the energy and water consumption of non-residential buildings around New Zealand. This research has been the first of its kind to be done in New Zealand.

BRANZ bulletins


BRANZ CO2NSTRUCT is an Excel-based tool that provides values for embodied greenhouse gas and energy for some construction materials. Embodied energy is provided as a total and divided into energy from non-renewable and renewable sources.


BRANZ study reports

Build magazine articles


The Household Energy End-use Project (HEEP) was a long-term BRANZ study with the objective to measure and model the way energy is used in New Zealand households.


The BRANZ website Level is the authority on sustainable building. It 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.


REBRI stands for Resource Efficiency in the Building and Related Industries. Resource efficiency is all about using materials, energy, time and money more effectively. REBRI's main focus is on reducing the amount of building material wastes generated at C&D sites that would otherwise be sent to landfill.

Whole-building whole-of-life framework

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.

Web pages:

YouTube videos:

  • Reference buildings for LCA
    Dave Dowdell, BRANZ Principal Scientist Sustainability, outlines the environmental impacts of buildings and how reference buildings can be used via a simple app.

Other pages in this web resource

Climate change

Climate change and the built environment

Reducing greenhouse gas emissions in the construction industry

Transition to a zero carbon built environment   

Programme objectives and projects