This study aims to identify factors that need to be improved to enhance work efficiency of workers in both office and home environments by focusing on activities classified into communication and intellectual ones. In this study, questionnaire surveys were conducted in four buildings. From results of questionnaires, ease of communication and intellectual activities are ensured in office work. Each activity has an equal impact on work efficiency of office workers. In work from home, ease of intellectual activities also has a stronger impact on work efficiency than ease of communication activities, and intellectual activities are easy.
