The differences between the worldwide certification system and the Japanese local system for well-being and usage practically

The aim of this study is to identify the difference between WELL Building Standard (WELL) and CASBEE-wellness office (CWO) for well-being and to provide a key to apply them effectively. The research methodology can be summarized into two steps. The first step is to compare the WELL and CWO to identify the strengths of these certifications. The second step is to conduct interviews with construction firms which obtain WELL certification and CWO, suppliers, and a consultant which provide these certifications. The results of the investigation show that WELL is focused on both building environment and services. On the other hand, CWO affects buildings more than services for workers. In addition, according to the results of the interviews, CWO has not been introduced by owners because the effects of the certification have not proven. The effects of CWO should be obvious just as they are in WELL. If the thresholds of CWO are fixed, the certification should be used as the well-being certification that affects buildings strongly in the first step when the project starts. We concluded that both certifications will be utilized effectively by using their strengths.