ue to the importance of Historic Cairo as a World Heritage property from 1979, numerous researches and studies about the preservation have been done both academically and practically, the nomination file stated that Historic Cairo covers the area from the eastern bank of the Nile, surrounded by all directions by contemporary neighborhoods. In addition, the site was described as a historical fabric that is still Widely preserved. The research represents that, there is an urgent need to develop a management plan to protect Historic Cairo and preserve the elements of outstanding universal value. To develop this plan, clear geographical boundaries must be defined for Historic Cairo and adopted by all ministries and governmental bodies for adoption by the World Heritage Center and UNESCO. The main objective of the research is to study, compare, and analyze the various boundaries of historical Cairo adopted by the various ministries and studies. And to propose boundaries for the property, that is agreed upon by all ministries for adoption at the WHC and UNESCO. As one of the conditions of having a comprehensive management system to preserve Historic Cairo.