In this 18-minute lightning talk from Data Council 2025 (Day 3), explore how modern data and AI tools can dramatically improve lives in developing regions through smart urban planning. Learn from Tobias Lunt, Co-Founder & Data Scientist at Development Data Lab, as he demonstrates how real-time urban data informs effective policy decisions. Discover practical approaches that combine incremental improvements with transformative AI technologies like LLM toolchains to create outsized impact on global urban challenges. Particularly valuable for data practitioners interested in applying their skills for public good and addressing development issues in urban environments worldwide.