In the article, the importance of the physical environment of the organisation, the office, in achieving the efficiency of various management processes, is analysed. The article explains the concept of the physical environment of the organisation and its essential classification methods, and analyses the essential advantages of a closed and open office for internal communication, conflict resolution, organisational culture and subcultures, employee productivity, and other organisational phenomena. Twenty-first-century trends show that more and more business organisations are moving towards open office trends, in order to distance themselves from the physical environment of a traditional bureaucratic organisation. The authors of the article seek to critically evaluate the advantages and disadvantages of a closed and open office, and to review possible future trends and prospects for research into the physical environment of organisations. Nevertheless, research into these complex factors requires primarily an interdisciplinary methodological approach, combining a knowledge of management, economics, psychology, architecture, and other fields, and this topic does not receive sufficient attention in the Lithuanian scientific discourse. The authors of the article seek to define the concept of the physical environment of the organisation, identify its essential features, compare the differences between closed and open physical environments, and discuss possible perspectives for future research.