The idea that the city should be for everyone and made by everyone is often known as the right to the city. I begin by exploring this idea, and then think about how cities are marked by spatial injustice- that is, our unequal access to and control over city space. I ask, how are people unequally situated so as to access a right to the city- how do they have unequal spatial agency, or an unequal ability to inhibit the spaces that make up a city? I analyze the concept of 'public space', and ask what sorts of public and non-public spaces people need in order to flourish in a city. I explore what is involved in building cities that afford all their residents the right to the city, enabling city dwellers of all sorts to exercise spatial agency in shared space.