Cities across Europe are increasing their ambitions to embrace a circular economy. In this context, a wide-ranging landscape of urban circularity practices is emerging. This article aims to elaborate on the spatial factors fostering or hampering the embedding of Urban Circularity Practices (UCPs) in the Brussels Capital Region (BCR). The article thus addresses the following set of questions: What do circularity ambitions imply at the urban scale and what is the landscape of practices aimed at realizing urban circularity? What are the spatial implications of urban circularity practices? What could the role of urban design and spatial planning be in embedding and mainstreaming UCPs? These questions are explored both theoretically, through a literature review, and empirically, through case-study research. We show that access to spaces and land emerges as one of the most recurrent barriers to embedding UCPs in BCR, and in other European cities too. We argue that real estate price is one of