This publication aims to inspire senior officials and decision makers in national, subnational and local governments to decarbonize the building sector, and to show them how to start. It does not present a comprehensive strategy, but rather highlights a set of essential measures and successful examples from intervention areas identified in the GlobalABC Regional Roadmaps – new buildings, existing buildings, building operations, building materials, and resilience. It assists officials and decision makers in identifying a starting point of a process for systematically incorporating building activities in their Nationally Determined Contributions under the Paris Agreement. For a holistic approach, senior officials and decision makers may refer to the more comprehensive GlobalABC Global and Regional Roadmaps.