Sustainable development and urban planning are essential to creating resilient, just, and ecologically conscientious cities. This chapter examines cutting-edge urban planning techniques that combine sustainability, community involvement, and technology developments, emphasizing the revolutionary potential of AI-powered Vehicular Ad-hoc Networks (VANETs). By facilitating real-time communication between infrastructure and automobiles, VANETs enhance traffic control, ease congestion, and cut carbon emissions. The chapter also covers how data-driven decision-making and predictive analytics improve urban mobility, maximize resource allocation, and support the objectives of smart, sustainable cities. The chapter emphasizes the significance of all-encompassing, flexible techniques for long-term sustainability by looking at the role of AI in urban ecology, public transportation networks, and renewable energy integration. Through innovation and collaboration, urban planners and policymakers can leverage AI and VANET technologies to create livable, urban landscapes that are sustainable for both current and forthcoming generations.