In this article I present the concept of the ‘peripheral condition’ in the context of theoretical discussion on planetary urbanization. Inspired by Neil Brenner and Christian Schmid’s interpretation of urbanization, which draws from Lefebvre’s oeuvre, I suggest taking into consideration Robert Kurz’s key insights about the internal contradiction of capital. In this study I seek to integrate the ‘critique of value’ theory’s crisis-centric approach into the literature on planetary urbanization, as it allows us to move beyond accounts that focus on extensive urbanization through operational landscapes and instead encompass the social relations that accompany it. Consequently, I argue that this comprehension reveals the periphery-form as a relevant idea to qualify discussions on planetary urbanization once an ever-growing population faces situations of precarity that were previously considered restricted to the peripheries. Hence, I suggest that planetary urbanization cannot be fully understood without considering its dark side, the peripheral condition.