This is the second paper reporting the versatile renovation method for staircase type residential building. Previously we reported 1) the technical review process for building upgrade, and 2) many variation of room types which accepts diversity of residents. Here we report 3) the legalization scheme to promise the renovated building safety, and 4) the method of construction record on which the condition of existing skeleton is described in detail. Both verification reports are on the case of large-scale renovation project by Tokyo Metropolitan Housing Supply Corporation.
