Children conducting research and engaging in ‘adult’ domains such as urban planning challenge perceptions of children as merely ‘adult becomings’ — perceptions which, along with lack of pathways for participation, have largely excluded children from effective participation in the public realm. This paper considers two urban participatory projects in Aotearoa/New Zealand: in the first, children (10–13 years) researched peer perceptions of Auckland city life; in the second, they were consulted by Auckland Council on the redevelopment of a city square. We reflect on processes and outcomes, and the extent to which facilitating such projects may increase children’s meaningful participation in urban planning.