Project information is submitted in accordance with the Green Star credit compliance requirements that are clearly outlined in each Green Star rating tool’s technical manual. Standardised calculators that can be used to demonstrate compliance for many Green Star credits can be found within the Green Star scorecards available on the GBCA website.
This research used data from both 'Design' and 'As Built' certified project submissions across all Green Star rating tools. Green Star - Design ratings are based on design documentation for buildings which must be at 'tender' stage or beyond. Green Star - Design ratings can be achieved for projects at any time from the completion of tender documentation until 24 months after a project’s practical completion.
Green Star - As Built ratings are based on an assessment of the sustainability of a finished building, after practical completion. Documentation for Green Star - As Built submissions is provided in the form of commissioning reports, receipts, drawings and confirmations from relevant parties. Green Star - As Built ratings must be achieved within 24 months of a building’s practical completion.
A subset of the Green Star - As Built rating tool category is the Green Star - Office Interiors rating tool, which provides office fitouts with an avenue to achieve Green Star - As Built certification.
The same building can receive multiple Green Star ratings, including Green Star - Design, Green Star - As Built and Green Star – Office Interiors. Where a building has achieved both Green Star - Design and a Green Star - As Built certification, the data used within this study has been drawn from the Green Star - As Built submission only. This methodology has been adopted to ensure data accuracy and to eliminate ‘double-counting’.