A prototype project in Sweden explores low-cost, off-site prefabrication to address affordable housing. Prefabricated concrete elements form a space-frame supporting modular apartments across a full city block, with four connected buildings around a private courtyard. The ground floor houses a café, shops, and shared spaces, while upper apartments are linked by a semi-external corridor enclosed in translucent polycarbonate, revealing red and raw concrete walls. Distinct entrances framed in stretch-metal cassettes and custom details complement the prefabricated design.