How green building performance levels address climate adaptation, climate mitigation and environmental sustainability?

The new EU regulations have created certain concerns within the AEC sector about challenges in becoming taxonomy aligned. An analysis framework is created to present how does the relative weight of different categories of LEED and BREEAM systems and criteria hold across different building performance levels and how these systems address/impact climate mitigation, adaptation and environmental sustainability. Framed with this objective, a methodology where different scenarios corresponding to different building performance levels was created. The results showed the most impactful categories across different performance levels for both new and existing buildings and their scoring robustness for different performance levels.