Launched at COP21, the Global Alliance for Buildings and Construction (GlobalABC) is a voluntary partnership of national and local governments, inter-governmental organisations, businesses, associations, networks and think thanks committed to a common vision: A zero-emission, efficient and resilient buildings and construction sector. The GlobalABC functions as an umbrella or meta-platform – a network of networks – that brings together initiatives and actors focusing on the buildings and construction sector. Our network currently includes 256 members, among which are 37 countries. The GlobalABC works towards a zero-emission, efficient, and resilient buildings and construction sector, and aims to:• Be a global advocate and a catalyst to action: GlobalABC advocates for market transformation and focuses on catalysing action by defining a carbon neutrality strategy for the built environment.• Be a trusted platform to set targets and track progress: GlobalABC tracks progress in its annual Global Status Report for Buildings and Construction (Buildings-GSR), and its Building Climate Tracker, a new index to track progress in decarbonization in the sector.• Support countries in setting priorities and measures based on their situation: GlobalABC develops policy guidance and global, regional, and national buildings and construction roadmaps outlining aspirational targets, timelines, and key actions for essential policies and technologies, and, offering a model for national and citylevel buildings and construction roadmaps to support and raise the ambition of NDCs.