Considering the changes in the demands and needs of tourism community, sustainability is the most significant and essential guide who leads to diverse changes worldwide. Mindful of environmental, economic, cultural, and social changes worldwide, tourism community is a concept and also a fact that has a diverse range of impacts on locality and thence city life. Related to tourism, tourism is able to be seen as a relationship of three bottom lines between resource, production, and consumption. As a result of not only correlation to economic vitality due to new tourism marketing, but also development of communication and transportation, the world has literally become a local region. Not only a rapidly growing number of tourists but also a growing demand of consumption from society living in cities is one of the reasons why there is an increase in competition for resources citywide. This report will explain a combination of challenges of tourism development and restructuring of sustainable tourism community, which is involved in a new economic, social, cultural, and environmental pattern to understand the impacts of tourism with examining city of Istanbul as a case study.