The article focuses on the problems of social inequality materialized in the objects of urban space. The construction of mobility barriers for citizens with disabilities has been considered in a new framework for comparing discourses on environmental accessibility, universal design and an inclusive approach in environmental practices. The data of a sociological study of the urban citizenship of people with disabilities have been presented, their right to a city has been considered in line with social knowledge and architectural practices. The work is based on classical sociological theories, also on the data of independent examinations on the quality of urban space and on a review of specialized periodicals and reports prepared as part of urban forums. The results of the study emphasize the constructive beginning of inclusive design, its role in the reconstruction of urban order, as well as in overcoming social discrimination and exclusion. The article is devoted to the sociological understanding of the relationship between architecture, social policy and disability issues