Utopian thinking has been an important part of urbanism and has included a range of ideas and ideals for the future city, inspired by socialist, technocratic or alternative systemic thinking. This lecture examines whether utopian thinking has renewed relevance in how to respond to the crises we are facing? It is important to acknowledge here that this is not a search for the totality or perfection of a utopia, but an ability to develop radical alternatives and new visions that take as their starting point societal complexity while also responding to wider challenges such as climate change. This lecture also investigates how utopian ideas have manifested through various visions made for urban futures and what the role of such visions might be for us now. In practice, it revives the important and timely need for us to consider utopia as process, rather than as blueprint, towards collective futures.