“Contested Fronts” is an exploration of the role of architecture in commoning practices in ethnically and socially contested spaces. It focuses on the agencies of the ad-hoc technologies of architecture that contribute to conflict transformation by advocating reconciliation processes to go hand in hand with urban reconstruction processes. “Contested Fronts” introduces three levels of investigation of the frontiers where architecture claims an active role: geopolitical, disciplinary, and everyday urban politics’ frontiers. To achieve this, it concentrates on the agencies of ad-hoc technology materiality and use that encourage the emergence of collectives, with their members coming from areas across divides. Ad-hoc technology involves means of spatial engagement, cartographic representation and visual communication. It assists the tactful organization of physical spaces and events.