The ever-growing demand for living space and its limited availability has invigorated the need for vertical housing as a solution. Increasing the number of stacks to optimize density has many impacts especially to social interaction within the community. Several factors can affect social interaction in vertical housings. Social interactions in the vertical house can be observed from their public access, programs, hybridization, and periscopes. This research examines how social interaction occurs in each of building massing types and try to find how space configuration can be created to support social interaction. This research observes two vertical housings as a precedent to study how the spatial arrangement as physical support social interaction. Result of the study is used to create a model of the new vertical house with good social interaction in Kebon Melati, Jakarta as a project. The methods used in this research are using qualitative analysis through literature and precedent study. Through this method, the research is expected to find the excellent space configuration containing social interaction’s element used in different vertical housing type building.