We are in a time of great threats to the Earth and the Mankind, making it urgent to initiate a reflection on alternatives to the current city and to make proposals on the organization of a possible post-capitalist society. We could also say that we need utopias that enable imagine a new social order better than the current. We must prepare and substantiate the concrete alternatives that we think, so that they are as solid as possible, always willing to confront our views and with the will to reach agreements. We can think of reaching a post-capitalist society from capitalism and from democracy. Therefore, we must develop and propose laws to be democratically adopted to reach a new social, economic, political, and urban order. In the transition to the new economic system we will have to make major economic reforms. We can think of profoundly transformative laws to be widely approved by society. The priority aspects will be discussions on the property and the financial system, as well as the control of the means of production.The criticisms of the capitalist city can serve as a starting point to conceive what may be the non-capitalist city. The paper reflects on this in different dimensions: the physical city built with its morphology (what the Romans called urbs), the city of citizens and their behaviors (the civitas), and administrative and political organization (the polis).