National Embodied Carbon Repository

This first release provides free access to embodied carbon data for thousands of construction products and materials available in New Zealand, supporting informed and responsible design decisions. Developed by BRANZ and CIL Masterspec, it is the only MBIE-endorsed project for a national carbon repository and replaces any previous static spreadsheets with a maintained, regularly updated dataset standardised for New Zealand. It includes major updates from earlier BRANZ data, with thousands more entries and refined assessment methods.

Under a collaboration agreement, BRANZ is the data Steward, ensuring ongoing scientific rigour, while CIL Masterspecs team of Architects are Custodians ensuring accurate industry translation and regular publication. Feedback is welcome through the "Contact Us" option and more information on the project is available here.