Many critics of Hannah Arendt claim that her account of politics lacks moral guidelines and constraints. In their view, she radically dissociated politics from morality. Such an interpretation is mistaken. These critics fail to acknowledge that Arendt’s conception has its own resources of normativity. Fundamental categories of Arendt’s political theory (plurality, natality, freedom, equality, forgiveness, promise) serve moral, as well as political, purposes. The internalization of these categories strengthens political actors’ moral judgment and their sense of responsibility. Active participation in political life engenders respect for human dignity and the multiplicity of different perspectives. Critics ignore the moral dimension of Arendt’s conception of politics because they confuse different levels of analysis of the relationship between politics and morality. In the paper, these levels are discussed using the metaphor of a three-storey house.