The United Nations is undertaking a significant $340 million expansion of its Nairobi headquarters, marking one of its largest infrastructure investments in Africa. Expected to be finalized soon, the project will transform the UN Office at Nairobi (UNON) into a major global hub, positioning it as the third largest after New York and Geneva. The expansion includes modern, climate-resilient office buildings and upgraded conferencing facilities that will substantially increase meeting capacity. This investment underscores a global shift towards Africa as a strategic center for addressing 21st-century challenges and brings multilateral decision-making closer to regions significantly impacted by these issues. UNON, the only UN Secretariat headquarters in the Global South, currently supports over 4,000 personnel and 88 UN offices.