Our housing market is challenged. Housing prices are rising, and the number of single-person households is increasing, which impacts the affordability of housing. Cohousing offers a possible solution to this problem. However, the level of empowerment of cohousing communities to self-organize is troubled by financial or legal barriers, among other things. Self-organization is defined as: initiatives that emerge spontaneously in civil society from autonomous community-based networks of citizens, who are part of the urban system but independent of government procedures, and that are created around a common intrinsic motivation. The concept of sharing economy might provide a solution for the current barriers to cohousing development. Sharing economy is defined as: collaborative consumption of under-utilized goods, enabled through access rather than ownership, often through the use of community-based online services. This research connects sharing economy to cohousing by looking at empowerment of self-organization of cohousing initiatives. Sharing economy and self-organization of cohousing communities are connected because both are community-based initiatives, which are built upon a common motivation, and both are not facilitated by political power. The following research question was answered by studying a cohousing initiative: How can the concept of sharing economy support empowerment of cohousing communities towards self-organization to create affordable homes? This study researches empowerment by researching the community’s social capital, research shows that social capital contributes to community empowerment. Research findings show that the studied cohousing project can be viewed as a sharing economy. This leads to both advantages and disadvantages for the community. Moreover, the project struggles with its self-organization and is largely dependent on the housing corporation. Lastly, the cohousing project possesses social capital, but some elements can be improved. Moreover, the research found that the sharing economy within the cohousing initiative can support some conditions for self-organization, as well as bonding social capital. However, the aforementioned disadvantages of the case study’s sharing economy may limit the benefits. To reduce the disadvantages of sharing economy, this study proposes a communication tool as a possible solution for improving communication in the studied cohousing project. The tool, called ‘(im)Perfection Puzzle’, uses geometric shapes to help residents explain their thoughts and ideas regarding a specific problem and as a result work towards the acceptance of the differences in everyone’s ideas. A test of the tool illustrated that the tool has potential, but future research is recommended as long term effects remain unclear. Also, research with other cohousing projects is recommended for validating the connection between sharing economy and self-organization, and sharing economy and social capital.