""Invisible in Borders"" critically investigates the complex nature of borders, focusing on the Armenian minority in Iran, whose religious identity as Christians has led to the demarcation of distinct spatial boundaries. Following the Iranian revolution, a stark division emerged between Muslims and the many minority groups who live in the country, profoundly impacting architectural spaces, and restricting public access. This research centers on The Holy Cross Chapel, an Armenian chapel within a walled sports complex in Tehran called Ararat, symbolizing the visible and invisible borders that outline and limit community interactions. By analyzing the Armenian chapel as a microcosm of larger societal divisions, this thesis aims to contribute insights into the role of design in shaping inclusive spaces, fostering unity, and addressing the complexities of identity, diversity, security, and sense of place within the context of visible and invisible borders in Iran. This thesis asks the following questions. How can borders serve as devices for identity, belonging, exclusion, and inequality? How to design a solution of visibility for these borders? How can design as a medium, leverage and modify borders to integrate spaces while maintaining identity, diversity, security, and a perception of the space? What effects might this have on the community, and how might the design process be redesigned in relation to boundaries and at different scales.