This lecture focuses on the importance of quality urban planning in African cities, specifically on the development of residential areas. The instructor discusses the social, environmental, and economic aspects involved in creating well-designed neighborhoods, emphasizing the need to consider factors like layout, design, and cost correlation. The evolution of construction standards over time and in different locations is also explored, using Abidjan as a case study. The lecture addresses the necessity of thoughtful planning, including understanding the needs, potentialities, and program of a residential development. It concludes by outlining the upcoming topics, such as defining neighborhoods, basic principles, optimizing networks, step-by-step construction, and showcasing various African city examples.