Cutting down carbon dioxide emissions produced by our current way of life will not be enough to stop climate change. By aligning myself with the Collaborative economy scenario of a Sweden in 2050 produced by The Beyond GDP-growth program i have tried to understand how we could live in another (economical) paradigm. I propose rebuilding the existing building Lågskär 1 in the suburb of Kärrtorp south of Stockholm. Adapting existing buildings is in line with the scenario, as is “docking around nodes in the public transport system”The house was built in 1949 and of consists of a ground floor with shop premises and two floors of apartments. To turn it into a building of the scenario i located core home functions (sleeping, some storage) to the apartment floors and extended home functions (hygiene, cooking, eating, social contact, workshop) to the ground floor. Placing common functions in the ground floor is also mentioned in the scenario text.The number of inhabitants of the house is more than doubled compared with today, and consumption and use of resources is reduced by sharing spaces and commodities used in everyday life.