The discipline of urban and regional planning teaches us about planning and managing the built environments. Planners have professional responsibility to deliver plans for most aspects of built environment such as land-use, infrastructure, transport and communication, community development and service delivery plans. This is how they make cities, towns and regions visually appealing, ecologically sustainable, socially equitable and economically productive. On the other hand, engineering disciplines, especially those are related to built-environment such as civil, construction, water and transport engineering, also deal with these issues but they focus on tools and design to implement the plans. A number of studies have been conducted on nature of interdisciplinary relationship between the planning and engineering education but none of the studies covers key issues that deserve interdisciplinary approach in addressing the built-environmental problems.