The article explores how new urbanism principles can be applied to residential interior design in Egypt. It looks at how design criteria for neighborhoods in developed countries can be adapted for new cities in developing countries. The study found that while new urbanism has universal principles, some adjustments are needed based on cultural, ecological, and economic factors. By examining a case study in Egypt, the research identified which new urbanism principles are successful and which need to be adopted in new settlements. The study shows how urban design, landscape architecture, architecture, and interior design all play a role in shaping cities and how they can influence each other. Ultimately, the findings provide valuable insights for interior designers to contribute to successful urban sustainability models.