Sabah, SamHossain, ImranWeiss, DavidTillmann, AlexanderRöpke, RenéSchroeder, Ulrik2023-08-302023-08-302023978-3-88579-732-6https://dl.gi.de/handle/20.500.12116/42220Extended Reality (XR), comprising Augmented Reality (AR), Virtual Reality (VR), and Mixed Reality (MR) technologies have the potential to enhance urban planning with immersive and interactive experiences, but there learning cost hinders citizen participation. XR development requires technical knowledge, limiting individual engagement in urban planning. On the other hand, physical models offer tangible visualization for urban planning but lack features compared to software applications. Combining physical objects with XR technology poses challenges but holds the potential to promote citizen participation. This article introduces the concept of the city planner app, an application that integrates XR technology and physical objects in a mixed-reality setting. This app aims to leverage the strengths of both worlds and overcome their limitations to facilitate the involvement of citizens and students in urban planning.enSocial citizenshipUrban PlanningCitizens ParticipationExtended Reality (XR)Augmented Reality (AR)Virtual Reality (VR)Mixed Reality (MR)Text/Conference Paper10.18420/delfi2023-571617-5468