This paper aims to clarify the characteristics of the space conditions of day service facilities for reused wooden houses for elders as well as the relationship between the plan types and layout of space functions. Reused wooden houses are larger in scale and total floor size than typical detached houses. The layout of the space functions depends on the presence of independent connected rooms. In case of having independent room, a dedicated room for meals and naps can be prepared. Because wooden houses have many rooms, a certain amount of nap space can be secured.