The Queensland Government Accommodation Office manages large and diverse portfolios of buildings – commercial and residential,owned and leased – on behalf of the many agencies that use these buildings and the wider Queensland Government. SPR was commissioned first to develop and recommend a strategic approach to the emission reduction pathway analysis, reviewing best practices elsewhere, relevant metrics and related elements. We then reviewed, compiled and ‘cleaned’ a wide range of existing data sources from the period 2005–2022, portfolio by portfolio, working in close consultation with different program managers. Finally,we projected trends, energy use and emissions to 2050, overlaid with quantitative impact analysis of least-cost strategies for reducing emissions and meeting Government abatement targets. Options, analysis and recommendations were presented progressively to senior managers and a range of agencies.