The city is in flux. The future of living and working in city are changing. A large amount of urban fabric is changing to conciliate our needs for the future. The question is, is a new building necessary? Currently, there are large amounts of underutilized urban building stocks that can be transformed into something new to accommodate our future needs for the city. The future of building is not about creating an individual object, but rather deals with socio-cultural activities that redefine city living. This thesis will be looking at how to deal with existing building and envisioning a new building typology by using the idea of hacking. Following the logic of hackers, everything is hackable; when hackers hack into computer systems, they produce new things by altering original sources. The idea of hacking is introduced as a means of research method to modifying the features of a system and organizational tools to find a new relationship.