This study aims to analyze the use of vacant lots in detached housing estates in Minori town, Ibaraki prefecture. In particular, this study focuses on 1) details of development 2) the realities of owners of vacant lots 3) how the lots are used by owners and residents in the neighborhood 4) problems of living environment caused by vacant lots 5) environmental management by residents and public administration. The results are summarized as follows:(1) Aratio of vacancy depends on the way of development.(2) Especially in old estates some neighboring residents utilize the vacant lots as vegetable gardens or parking lots.(3) Living environment in detached housing estates are affected by existence of vacant lots.
