Problems require solutions. However, what is described as a problem and how answers and solutions are found is crucial. In light of the climate catastrophe, the unjust distribution of wealth, or the demand for livable housing and urban space for all, purely technical solutions are often promoted, which overlook political contexts and complex conditions. At the same time, there are approaches that only pose questions without positioning themselves regarding possible answers, or that, on the contrary, insist on immutable maximum solutions. Such purist approaches, as well as the technically and administratively simplified solutions, leave existing power relations untouched. In contrast, we propose a radically democratic politicized approach to the problem of solution with nonsolution. The term nonsolution, coined by sociologist, historian, and urban theorist Siegfried Kracauer, opens up a field for experimental ways of thinking: not solutions are avoided, but an active non-solution is pursued. The "non" affirms conflict and opposition, the rejection of wholly closed identities, and the opening of architectural solutions to their given contexts and desirable futures. In regard to housing and urban development against the pressures of capitalization and exclusion, we connect planning activities with political theory in this book to critique architectural practices.