Vernacular urbanism, which encompasses traditional architectural and planning practices rooted in local culture and environmental conditions, presents valuable insights for modern urban design. As modern cities face increasing challenges such as environmental sustainability, cultural homogenization and climate change, the significance of these traditional practices becomes more apparent. In this context, it is argued that understanding and integrating vernacular practices can enhance contemporary urban design by merging historical knowledge with modern needs. This paper examines the integration of vernacular urbanism— traditional architectural and urban planning practices—into contemporary city design by employing a qualitative approach through case studies across various Indian cities such as Mumbai, Kochi, Jaipur and Jaisalmer, drawing on various data sources including historical texts, architectural treatises. By examining these, the study uncovers the evolution of vernacular urban practices and their applicability to contemporary urban design challenges. The paper concludes that integrating vernacular principles into the design of contemporary cities creates a harmonious balance between heritage preservation and advancing modern developments. This approach effectively bridges the gap between historical knowledge and contemporary urban planning, resulting in more livable, sustainable urban environments.