Collective Self-Organised (CSO) housing projects are an emerging trend in Europe. In these projects communities engage in co-design throughout the process. Little knowledge exists that can support CSOs with the process of managing their projects by using state-of-the-art building information (BI) technologies. The authors introduce a BI supported CSO housing design process that can support CSOs through all stages in the design process, from early conceptual location planning through to selection of interior finishing. They illustrate the project using a demonstrative illustration of a CSO housing design process. The paper will concentrate on the development of innovative Collaborative Design Technology (CDT) solutions. The tools will be demonstrated on the basis of an illustrative demonstration case in which the CSO-process is combined with an IFD (Industrial, Flexible and Durable) building system. The particular advantages for architectural design practice will be highlighted throughout and gaps in the literature addressed.