Sustainability in the Development of the Urban Eco-environment

The article considers the main parameters of the sustainable development of the urban environment as a basis for ecological development of the major Bulgarian Black Sea cities - Varna and Burgas. Based on the problems of urbanization in the post-totalitarian transition in Bulgaria, conclusions and findings are made about the nature and characteristics of the formed urban communities in the leading port cities of the Republic of Bulgaria in the Black Sea. The thesis is defended that the future development of our Black Sea cities should be based on environmental friendliness and sustainability. They should strive for a coastal fluidity, with a transition from one urban environment to another, with a panorama of a cultural collage that combines aspects of the ecological urban environment and architecture with the challenges of technology and modern transport and communication infrastructure. An attempt has been made to highlight the positive and negative changes in the development of the Black Sea cities over the last three decades. The main guidelines for the necessary changes in the regulatory aspect are presented. They should ensure the protection of the air, soil, water and nature of the Black Sea region.