In 2017, the Imagining Decolonised Cities (IDC) competition sought submissions for the public’s visions of a decolonised Porirua. The IDC competition was an opportunity for Ngāti Toa Rangatira to solicit utopic ideas for their city post-settlement. This article presents an analysis of the 40 entries, exploring how participants understand decolonisation enacted in an urban setting. We identified two overarching themes from the submissions that can be linked to wider theories of decolonisation, particularly Corntassel’s (2008) theory of sustainable self-determination.