AbstractUrbanisation into poverty in cities of the global South gives impetus to urban agriculture (UA) as a strategy to improve food security for low-income residents. This study disputes that UA is a trivial sector by arguing through the invisible short food value chain lens that it contributes to food security in local communities. The study adopted the extended case method that immersed researchers for more than a year to understand the practices of 11 farming entities and 20 of their customers in Johannesburg. Open-ended interview guides were administered to key informants from the city, provincial government, and non-governmental organisations. Findings show that UA increases food availability in local communities through the short food value chain. However, the local economy is undocumented and invisible to city stakeholders, negatively affecting their land use planning decisions for the sector. Though stakeholder consensus on UA is still lacking, the City of Johannesburg recognised UA’s potential and allocated both temporary and permanent land access arrangements for farming. Small-scale farmers lack the capacity to supply formal institutions, which can be overcome by intermediaries, such as civil society facilitation. The limitations of UA manifest in its inability to attract labour and keep records which inhibits its potential and support at the city level.