In our article ‘Diversifying the compact city’, we aimed to open a dialogue, in human geography and beyond, on how to broaden the scope of how we examine and critique compact urbanism. The insightful and constructive commentaries we received generated further reflection on the lived experiences of compact urbanism and the mutual benefits of constructive interdisciplinary collaboration on the compact city agenda. In this author response, we elaborate on the need to ground compact city research in actual practices and experiences, and on how planners and geographers can advance the commoning of the compact city.