This study aims to explore gentrification in the city of Yogyakarta through the production and commercialization process of tourism space, explore the impact of gentrification felt by local communities in a cross-generational context, and formulate strategies that millennials can do to support housing access in the city of Yogyakarta. Through the research process in Sosrokusuman Village located in the Malioboro area, this study finds that the transformation of settlements in Sosrokusuman cannot be separated from its territory within the Malioboro area as a tourism space. In addition, the exploration on the impact of gentrification for local communities shows that the scarcity of housing due to land conversion (commercialization) and high land prices have caused millennials with salaries equivalent to the regional minimum wage to have difficulty accessing housing in Sosrokusuman and have the potential for voluntary eviction. Meanwhile, the exploration of strategies that can be done to support housing access for millennials is through cross-sector collaboration with the concept of collaborative implementation program (CIP).