The concept of sustainable urban development has evolved significantly over the past decade, shifting from a focus solely on environmental protection to a more integrated approach that encompasses economic viability and social equity. Recent studies indicate that cities adopting green infrastructure, such as permeable pavements and urban forests, not only mitigate flooding and heat islands but also enhance property values and community well-being. However, critics argue that without robust governance and inclusive planning, such initiatives may inadvertently exacerbate gentrification, displacing low-income residents. Thus, the success of sustainable urban projects hinges on balancing ecological goals with equitable policy frameworks that prioritize marginalized populations.