This paper is a theoretical exploration of dominant conceptualisations of do-it-yourself urbanism, which draws from and contributes to feminist inquiries into urban planning and policies. Do-it-yourself urbanism is defined as unauthorised, grassroots, and citizen-led urban planning interventions that are small scale, functional, temporary, creative, and place specific; are focused on reclaiming and re-purposing urban spaces; and take place outside formal urban planning structures and systems. This paper questions and complicates the dominant discourses surrounding do-it-yourself urbanism by highlighting the racialised, classed, gendered, and sexualised ‘blind spots’ and biases found within conceptualisations of the topic, its activities, actors, and spaces. It also investigates how do-it-yourself urbanism activities and actors are connected to and embedded in larger urban systems and policies. I argue that the dominant discourses of do-it-yourself urbanism focus on a narrow set of urban planning interventions, which may have major implications for cities and their residents. However, the terrain of do-it-yourself urbanism is diverse, fluid, paradoxical, and at times subversive, revealing bright spots for more inclusive and reflexive practice.