The concept of privacy brings the idea of controlling, in different degrees, the interactions with other people and/or with other internal or external spaces, and so blocking or diminishing the flow of information or stimulus, as already revealed by some authors (e.g. Kupritz, 2000; Rapoport, 1985). Privacy would be culturally universal, although the ways in which privacy is regulated may vary according to different social systems (Kupritz, 2000). The importance of privacy may be revealed, for example, in American culture by Kaplan?s placing privacy under ‚safety and security‘, the second human basic need, after physiological needs, in Maslow‘s 1943 Hierarchy of Needs (Kupritz, 2000). Moreover, as already presented in a previous paper (Reis, 1997), the importance of privacy has been revealed in studies about social housing in the United States (e.g. Francescato et al, 1979) and in Great Britain (e.g. Darke, 1982). Although some of these studies were not specific about the type of privacy, having sufficient privacy from other people in the dwelling appeared to promote user satisfaction with the dwelling in the study `Easter Hill Village' by Cooper (1975) with low- to moderate-income American families. As shown in other studies (e.g. Reis, 1997; Reis & Lay, 1995) visual privacy from other people in the dwelling has been revealed as an important aspect in the design of social housing in Brazil. It was one of the nine factors that were among the most important for the users of all six dwelling types investigated, out of a list of 32 dwelling factors mentioned in the literature as having some effect on user satisfaction with the dwelling. Additionally, visual privacy from other people in the dwelling was rated by the residents of the dwellings investigated the second priority, after size and number of rooms, of a group of eight aspects related to housing design. Privacy from other people in the dwelling was a problem in many dwellings types where there was no partition wall separating the kitchen and the living room, the bathroom door opened to the living room, and there was a bedroom opened (without a partition wall) to the circulation space (Reis, 1997). Nonetheless, although some studies have evidenced the importance of visual privacy in the dwellings, aspects related to the attributes of visual and functional connections inside de housing units have not been systematically explored, at least concerning social housing in Brazil. Hence, this article examines residents attitudes concerning the adequacy of visual privacy in 374 dwellings in 12 housing estates in the metropolitan region of Porto Alegre, Brazil, and aspects associated to the visual connections, such as areas of isovists, the relationship between the mean number of visualized spaces and the mean number of spaces in the dwellings in each housing estate, and the type of spaces visualized. It is also investigated aspects associated to the functional connections such as type of connected spaces, type of topological spaces in the dwelling system, which reveal different possibilities of movement by residents and visitors, degree of integration of spaces and the difference factor, which measure the differences in the spatial configuration of the dwelling as represented by integration values. Data was collected through questionnaires, structured interviews and physical measurements, and analysed by non-parametric statistical tests and space syntax methods. Some of the main results show that some quantitative methods are more appropriate than others to predict the adequacy of visual privacy in the dwelling, and that the greater the homogenization of the spatial configuration, the greater the tendency for visual privacy related problems.