Electrification is emerging as a defining opportunity for the global clean energy transition. The COP31 Presidency has identified it as a flagship priority within its Action Agenda, setting an ambition to increase the share of final energy demand met by electricity from just over 20% today to 35% by 2035 — “35 by 35”. Alongside this, the Presidency’s focus on climate-resilient cities includes an ambition to reduce building energy-consumption intensity by at least 25% by 2035. Buildings have a critical role to play in delivering both ambitions. As major consumers of energy, they represent one of the most significant demand-side opportunities to accelerate the transition away from direct fossil fuel use. Through energy efficiency, electrified heating and cooling, smart controls, distributed energy resources, storage and demand flexibility, buildings can also become active participants in an integrated, flexible and increasingly renewable-powered energy system. But solutions alone will not deliver transformation at the pace and scale required. Accelerating building electrification will depend on coordinated action across governments, cities and states, utilities, investors, developers, designers, building owners and occupiers, technology providers and industry organisations. During Climate Week NYC, World Green Building Council, in partnership with the Electrify Now campaign and partners including C40 Cities, We Mean Business Coalition and Climate Group’s Under2 Coalition, and in support with SOM, will convene a high-level, action-oriented workshop to explore what it will take to unlock this opportunity. Bringing together leaders from the buildings, energy, finance and policy communities, the workshop will identify successful models of implementation, explore policy, regulatory, financing and market mechanisms that can accelerate deployment, and strengthen alignment between national and subnational action and private-sector delivery. The session will ultimately seek to define the buildings sector’s contribution to “35 by 35”: developing shared priorities, practical implementation pathways and a concise package of recommendations and priority asks for governments, investors and international institutions. These outcomes will help inform a collective sector position ahead of COP31 and create a foundation for continued collaboration through COP31 and beyond.