Tourism is one of the most thriving sectors that provide a multiplier effect and becoming one of the essential development industries for Indonesia, including the city of Yogyakarta. The contribution of tourism to the economy of the city of Yogyakarta is indisputable; however, excessive tourism development has impacted the spatial pattern of the traditional neighborhood, called Kampung. The neighborhood have been transformed into tourist village causing a gradual decline in its provision of transitional space, such as Prawirotaman, which was formerly a residence of Javanese aristocrats in the nineteenth century then turned into a village for tourists in the 1980s. Transitional space is critical in accommodating neighborly lives and social interaction among locals, as their social interaction territory. This chapter aims to investigate the locals’ behavior relating to territoriality through the socio-spatial approach, as a place process for local’s sustainability within tourism. A qualitative research approach is implemented by conducting a walking interview, an in-depth interview, and snapshot observations. ArcGIS and SketchUp assisted in the data collection. The chapter uses behavior mapping and the results presented in thematic maps and architectural sections.