Sustainable development is global, continuous and controlled change that meets the needs of the present without compromising the ability of future generations to meet their own. This means that environment, humankind and economy are taken into equal consideration in planning and decision-making.People spend the majority of their lives in build environment in enclosed rooms. Therefore, the quality of buildings has a decisive effect on the well-being and satisfaction of the users. The human dimension of sustainable development requires that work and work environment will be planned in such a manner that a person will be able to work efficiently and maintain good health and working capacity. Workplace solutions should support the meaningful work, feeling of control and participation, as well as sense of community and well-being. User-oriented and participatory approaches are relevant when planning working environments that support well-being and productivity. Participative planning can also be used to motivate users to save energy and improve space efficiency.This project is based on multidisciplinary approach for user needs as a driving force to develop a model for future working environments according to latest knowledge about workplaces, indoor environment and energy efficiency. This study focuses on evidence-based research on human experiences in the build environment and its practical implications in three pilot organizations, where improving energy efficiency is the primary purpose of renovation.The aims of the project are, firstly, to develop a participatory design approach to promote energy efficiency targets and sustainability in renovation project, and secondly, to assess the impact on user well-being and productivity. We have a prospective longitudinal research approach, in which the impact of renovation of the building is examined from both a process and end result standpoint. As an intervention method during the renovation process, we apply common meetings, participatory workshops and user journeys in order to meet user requirements and their ideas for improvements.We evaluate user's experiences on their workplaces, their well-being and work performance with quantitative and qualitative methods both before and after the renovation process. Survey method is applied to assess perceived indoor environment, satisfaction with the working environment and functionality of the places, work performance and occupational well-being of all users. With thematic interviews, we collect viewpoints of different user groups, their work specific needs and wishes for their workplaces as well as their occupational well-being and satisfaction.