Housing segregation has occurred in urban areas in Indonesia. Spatial segregation is shown by the phenomenon of gated community and social segregation is indicated by the absence of social relations among the groups. This housing segregation endangers the unity and integrity of the community. It is far from the ideal goal in housing development, i.e. to create harmonious community. This problem can be caused by the housing policies. Therefore, this study aims to identify housing policies that affect housing segregation in Indonesia. The methods used in this study were: 1) compose the conceptual framework of the emergence of segregation based on the results of the research article review; 2) collecting policy texts in the form of laws and regulations at the national level (constitution, government regulation, and ministerial regulation) for the past ten years; 3) review and map the contents of the policies following the conceptual framework; 4) analyze the mapping and look for policies relating to segregation. The results of the policy mapping show that although there are many policies to increase housing affordability and harmonious housing (diversity and balance), there is a clause in a balanced housing policy which states that the construction of simple housing for low-income groups may not be in the same location with the moderate and luxury housing has triggered the emergence of spatial segregation. Thus, it can be concluded that housing policy influences the occurrence of housing segregation in Indonesia.