Historic Urban Landscape is the consequence of dynamic interrelationships between physical, ecological, and cultural factors in a causality based dynamic system. In recent years, urban development plans, inattentive to ecological and historical structures of landscape, have led to segregation of urban values. At a time of rapid urbanization, the conservation of historic cities is one of the most urgent challenges. Reviewing the principles and policies has led to a theoretical framework, based on approved approaches toward the subject for conservative planning. Planning in HUL, requires information which should be identified through scientific survey methods, regulations and principles, tools and procedures and also executive guidelines based on conservation. This research has investigated the historical and natural structure of Isfahan’s urban landscape in Iran. Analyses found improper urban development as the cause for disconnections in the HUL of Isfahan; providing effective theoretical framework that helps presenting a conservation plan for this historical city.