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Simon O’Brian - Rebuilt

Simon O’Brian

Head of Developers and Builders at Rebuilt, GECA Associate, Rebuilt
Simon works at the intersection of the built environment, carbon data, and climate reporting. With a background spanning property, sustainability strategy, and decarbonisation, Simon has spent his career helping organisations navigate the practical realities of emissions, materials, and risk. Prior to Rebuilt, he held senior sustainability roles across major Australian property and digital businesses, where he saw firsthand how embodied carbon data breaks down when projects meet enterprise reporting.
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