The purpose of this study is to obtain the information on simultaneous maintenance repair in office buildings based on the questionnaire survey. Collected data on maintenance repair were classified into three categories ; (1) renewal, (2) repair, and (3) new structure. Each category was further analyzed according to four factors! (a) cause, (b) time, (c) room, and (d) item of the repair. The change in repair frequency was also examined for different repair locations. The result indicated a similar pattern of repair frequency from different repair locations. It is likely that maintenance repair was often performed simultaneously for several structure items. In conclusion, for future office building maintenance, maintenance repair can be performed effectively not only by maintaining different items simultaneously, but also by separating maintenance repair periods of each item according to its different life cycle.
