Various studies have addressed the issue of privacy and referred to its critical role in shaping the spatial organization and functional configurations of buildings. Residents of public housing projects tend to modify their homes to achieve different functional and occupancy objectives. While the variables that motivate tenants to alter their spatial layouts have been extensively studied, only a few studies have researched the role of privacy as a motivating factor in modifying public housing units upon extended periods of occupancy. Therefore, this study examines the role of privacy as a motivating factor in the spatial layout modification of public housing units in Jordan. It sampled a Jordanian public housing project in which the spatial layout of several housing units has been modified by residents over time. The spatial configuration of the original and the modified version of the housing unit was assessed in terms of visibility, accessibility, hierarchical structure, and the spatial organization of interior spaces. Additionally, face-to-face interviews were conducted with the residents to gain a better understanding of privacy considerations in modified units. The study of Jordanian public housing units revealed that residents carried out various modifications over time that encompassed enclosing balconies with interior living spaces, adding private entrances, or expanding the space of balconies and terraces. The Visibility Graph Analysis (VGA) and J-Graph analyses showed that home modifications precipitated hierarchical spatial relationships that echo established sociocultural traditions in Jordanian society. The data analysis emphasized the key role that privacy plays as a motivational factor for spatial layout transformation. Hence, this research underlines the imperative of integrating sociocultural needs with functional aspects in the process of designing public housing projects. Designers should embed higher levels of flexibility in their masterplans and home layouts. With residents' satisfaction and spatial flexibility in mind, designers should identify and engage concerned stakeholders during the initial stages of planning and design of public housing.