Title - Designing Future Sustainable Cities through a Living Labs Approach – A Case study of “Väsby Labs” Purpose - The purpose of this study is to analyze the contributions of the Living Labs research and innovation methodology to the planning process of designing future sustainable cities as well as its main shortcomings. Additionally, this study intends to provide possible solutions to improve the model in the future. The Living Labs model focuses on creating platforms for communication, innovation and long term development by inviting different stakeholders to an open planning process before public places are defined, houses built and schools developed. Interaction between developers, inhabitants, social services, and political and financial systems is the key element of this model. Research questions - What are the main contributions of the Living Labs Model to the process of designing future sustainable cities and which are its main limitations? How can these limitations be addressed to improve the process in the future? Methodology - Qualitative research consisting of a literature review and an empirical case study based on semi-structured interviews with key individuals as well as secondary data gathered from the web and from participating in workshops and exhibitions in the project’s site. Research limitations/implications – Due to time limitations this study is a mere analysis of a project being developed on a Swedish municipality and does not contemplate its final results, only the ones reached on the date of the current study. The language is also a limitation, due to some of the literature related to the case study, and the conferences and workshops being in Swedish. Originality/Value - This study is the first attempt to analyze the contribution of a methodology such as the Living Labs to the planning process of designing future sustainable cities.