In this study, which considers 15 Osaka modern Nagaya houses with semi-public spaces, we analyzed and investigated changes in the spatial composition of the renovated semi-public spaces, space utilization, the content of interaction in semi-public spaces, and purpose of use. After renovation, including changing the form of the earth floor, integrating adjoining rooms, and enhancing the versatility of its semi-public spaces, etc., we found that, based on its spatial uniqueness as a traditional house, the Nagaya opens up the living space to the local community with the neighborhood forming the focus.
