BPIE and the Global Alliance for Buildings and Construction developed the Buildings Climate Tracker to measure decarbonisation of the sector across the world.
By using the OECD approach for composite indicators, they constructed a decarbonisation index and consists of five steps: Data collection, analysis, and selection precede the normalisation and aggregation. It mainly focuses on building construction, use and renovation (excluding demolition and social indicators) but also provides information on adaptation and resilience to climate change by outlining the requirement for new and existing buildings to face current and future risks.
You can check Global Alliance for Buildings and Construction new report with UNEP here.
