Housing policy for mixed tenure between a private sale- and public rental apartment housing has been adopted in Korea in order to mitigate both spatial separation of public rental housings and social exclusion of the residents. However, the effectiveness of such policy is still questionable since there has been the conflict among residents living in mixed tenure housings. Employing the 2011 Public Rental Housing Survey data in Korea, this study investigates the relationship between physical configurations of mixed tenure apartment housing and the social outcome of residents. More specifically, controlling for individual, household, and neighborhood characteristics, we quantify how and to what extent spatial proximity between a private sale - and public rental unit affects the level of satisfaction with neighborship as a proxy for social outcome. To do this, we categorized specific physical configurations of mixed tenure apartment housings into three types: ‘separate’, ‘site-mix’, and ‘building-mix’. Based on the results from the ordered logit model, all tenure mix types were positively associated with neighborship satisfaction when comparing to the type of pure public rental housing (‘no mix tenure’), but we only found the statistical significance (at the below 5% level) in ‘separate’ and ‘building-mix’. Notably, the variable of physical environmental performance is the most importance factor affecting neighborship satisfaction at the significant level. Also, as expected, both the number of household members and the duration of residence were positively associated with neighborship satisfaction, respectively. Therefore, it can be concluded that mixed tenure apartment housing policy in Korea has a merit to enhance the satisfaction with neighborship of residents living in a public rental housing, and hence contribute to the social integration. However, it does not necessarily mean that the higher spatial proximity is, the more satisfied with neighborship residents are.