<![CDATA[Background. Open office layouts are widely adopted to improve communication, collaboration, and work efficiency. However, they can also cause noise, concentration disturbances, and reduced privacy that affect the psychological and social experience of employees. This phenomenon is also found in the administrative room of PT Sun Star Motor Sidoarjo, which integrates several work functions in one open work area. Research Purpose. This study aims to analyze the application of open office layout in the perspective of employees mental well being and social well being, and its relationship with work implementation. Research Method. This study used a qualitative approach with a descriptive design. Data were obtained through observation, semi-structured interviews, and documentation involving five informants in an open work environment. Data were analyzed through data reduction, data presentation, and conclusion drawing and verification with the help of NVivo, and validity was tested through source and technique triangulation. Findings. The implementation of open office layout supports communication, coordination, and social interaction, but also presents challenges in the form of noise, distractions, and privacy limitations. These conditions are related to mental well being, especially psychological comfort, concentration, and mental fatigue, as well as social well being through interaction and relationships between employees. Conclusion. The condition of the workspace is related to the smooth implementation of work and the effectiveness of employee work.]]>
