增量建筑：设计一半，留一半给住户生长

Row of incremental social housing where every second bay is deliberately left unbuilt, the delivered half in precise grey concrete frame with clean openings, the self-built half filled in by residents with varied windows, colours and materials, the contrast between designed and inhabited clearly legible, shared ground-level courtyard with everyday life visible, bright direct sunlight, eye-level composition, 28mm lens, architectural photography, ultra photorealistic, 8K