Abstract
In case of national rental apartment, habitability is generally evaluated low comparing with typical apartments. So, researches and investment are required to increase the residential environment. In this point of view, present study aims to suggest the basic data for improvement of homeless masses' dwelling level through economic feasibility analysis. Firstly national rental apartment, which habitability is considered to be low in the point of environment-friendly, welfare, and convenience, is chosen as objective. Secondly environment-friendly project items including project flow were set up, and then basic model was formed to evaluate economic feasibility through priority survey to residents. In result, priority for two items among six different proposals were higher than the others. This result could be useful when trying to increase the dwelling level of national rental apartment being planned to construct in future.