Role of Urban Planning Codes and Regulations in Fulfillment of Good City and Sustainable Urban Development (case study: Tehran)

The city form is shaped, by set of decisions made by residents. It must be controlled otherwise; chaos would rule the whole city systems. That is why all societies need codes and regulations to control decisions and correct and facilitate their performance till the same people live securely and know that they can expect others to follow the same regulations. Part of people decision is a function of urban planning-codes and -regulations control that may have spatial and physical reflection. Sustainable development can lead to equity in length and width of time, which certainly can be considered as goal of such codes and regulations. In fact, composing urban - codes and - regulations is a mean to achieve goals of sustainable development and ensuring formation of a sustainable residency. While studies on codes and regulations considered as criteria for enforcing in Tehran, methodologies like comparative researching and utopia typology, showed that present codes and regulations could not be tailored to Tehran urban planning and its sustainable development.