Abstract: Struggling economies, unprecedented political leadership, increasing globalization, and unpredictable natural disasters are revolutionizing our world each year. Urban design must be re-realized as a vital actor in shaping and contributing to the new global quality of life. Public spaces, which allow the interaction of various groups having different activities, behavior, socio-cultural and life style characteristics, have special importance as areas that meet the differing social and physical needs of people. One of the most important problems in public spaces today is the dissatisfaction of disenfranchised users from various characteristics of the physical and social environment. For those sectors of society who are socially disenfranchised in some way, the use of public space is often an important part of life. Public spaces offer a refuge that these people may not otherwise have, and are sometimes the only spaces in which they can exist peacefully. The study aims to identify how the informal use of public places by the socially disenfranchised improves their quality of life. This will be explored through the concept of user participation. Successful public spaces have generally been planned and designed in an integrated way and in various form for different life styles and users. Resulting outputs of research can raise awareness for the disenfranchised while recasting the role of urban public spaces as socially conscious expression of the greater society. And this plan lead to people participate more in community and they will take more responsibility via attention to disfranchised social phenomena in order to improve people life‟s quality.