This thesis is concerned with habitable microarchitectures and recyclable or recycled (building) materials in light of their ecology. Based on engagement with theoretic knowledge in these fields, a new building is conceptualized. Additionally, the design is expected to be modular, prebuilt, self-constructible and reversible. Two views on the handling of recycling in architecture are presented and scrutinized with regard to applicability for this project: Upcycling following Braungart/McDonough and Reuse as realized by Superuse Studios. In view of this analysis, possible materials are evaluated and compared with alternatives. Further considerations are devoted to the theme of microarchitectures and their situational utilization. The illustrated examples unveil four major motivations: ecology, economy, mobility and subversion. Furthermore, possibilities of saving indoor space with suitably designed furniture are demonstrated. The two research topics are connected in the planning of a temporary living space for 2-3 people. The habitable space amounts to 10 m2 and is constructed of recycled and recyclable materials. It is situated in a vineyard in the 19th district of Vienna, where the construction of buildings is only authorized with right to revocation. To accommodate this legal situation, possible ways of reuse are suggested.