Our proposal for a modular aquaponic urban farm was shortlisted at the World Architecture Festival 2017, which took place in November. The project is a research collaboration between Flanagan Lawrence Architects, the British Aquaponic Association (BAQUA), the Bristol Fish Project, and Expedition (as part of the Useful Simple Trust’s work on the circular economy). The vertical modular farm is designed to make use of available growing space on the south facades of large urban sheds, to be built from reused steel elements and involves a number of closed-loop principles: between fish and plants, and turning foodwaste into sustainable fish feed.