"In the separate epochs of their historical existence and development the Balkans, being between two significant cultural areals - West Europe and the East, have been formed as an " intermediate zone" in which roads and influences cross and superpose. The architectural ideas, models and composition principles, as well as the territorial-administrative structuring have undergone numerous metamorphoses. The three powerful empires - the Roman, the Byzantine and the Ottoman having subjugated the Balkan peninsula to one political and administrative authority at various historical stages, have imposed their impact on territorial structuring. At the intermediate stages the territory of the peninsula had been divided into smaller states, the boundaries having changed, in the course of which one and the same administrative units have passed from one domain and cultural influence to another.The territorial communities are administrative-economi or religious units consisting of mutually supplementing systems and elements hierarchcally subordinated and related with functional connections and dependencies gravitating to a pronounced composition centre. These communities are economically balanced; guaranteed from military and strategic point of view, open to commercial, spiritual and cultural contacts with a view to meet the requirements of its inhabitants. They are part of a common general state structure and possess a pronounced ability for transformations and selfregulation, which studied historically can determine the trends for their rational development nowadays.Metamorphoses in territorial-administrative structuring have been a function of the political and economic changes in the course of the historical process. The role of continuity i territorial development is as a rule expressed by the conception of town-centres and the structures a gravitating towards them, especially so after the conquering wave of foreign invasion had faded away whin a big portion of the existing territorial communities had been preserved and continues its development. At later stages, however, the new social-political conditions had required territorial restructuring. The study of these processes in historical plan makes it possible to prove the resistant elements and connections, the basic composition framework, uniform for the Balkans as a whole, as well as the pulsating of the territorial communities.The present graphs of the territorial-administrative division in the Roman, Byzantine and Ottoman Empire, as well as in the intermediate historical stages with multi-state government on the peninsula clearly show the trends in the development of the territorial communities. The study is oriented to analysing the formation, development and restructuring of the territorial communities on the peninsula in order to reveal the role of the existing structures from a preceding historical period and their resistance in time under extreme circumstances having imposed deviations from their evolutionary development according to the law of continuity (foreign invasions, joining a new cultural community; sharp economic and political changes). This historical section can be used as a basis for modern interpretation of territorial structures, taking into account the role of continuity as basis of development."