In this thesis, Giddens' theory of structuration is employed in an analysis of the ghetto of ex-psychiatric patients in Hamilton, Ontario. A review of the main concepts of of structuration theory forms the basis for a theoretical model of the structuration of urban space that considers both the individual agent and the social system as equal partners in the production and reproduction of the urban built environment. From this general model, methodologies are developed for institutional analysis and an analysis of strategic conduct. The institutional analysis enables an understanding of the ghetto as the unintended outcome of deinstitutionalization policy. An examination of the city of Hamilton's attempt to dismantle the ghetto focuses on the strategic conduct of the actors in the policy-making process, and provides insight as to why the city's attempt has thus far proved unsuccessful in halting the ghettoization of ex-patients. The study demonstrates the theoretical and empirical utility of structuration theory in providing an analysis that considers the complex interrelationships of system, structure, agency, time and space. / Thesis / Master of Arts (MA)