抄録
This article is research on the characteristics of contract and management of self-renovation by tenants in rental apartment houses. We interviewed real estate agency and building owners about a lease contract, business feasibility and condition of dwelling units. Based on hard aspects, such as planning of dwelling units, soft aspects, such as contents of contract and business feasibility, we raised desirable system of contract, space of dwelling units and succession of dwelling units for business operators who manage the self-renovation by tenants in rental apartment houses.