Prefab the Fablab explores the potential of 3D printing, laser cutting technology and its implication towards the future of interior architecture. The proposal is a speculation for a future prototype of fabrication lab, an open plan interior space that is reconfigurable, dynamic and participatory. The project develops a narrative where people would have the freedom to design their own spatial experiences based on their needs at the time. In addition, this project responds to the development of technology, materiality and construction technique which allows opportunities to change overtime in the longer term. This project shifted an understanding of interior architecture which embodies static and autonomous to dynamic and flexibility.