In 2003, a small housing office faced an impossible brief. A public subsidy of $7,500 per family had to cover land, infrastructure, and construction for 100 households on a central urban site — a budget that could buy roughly 30 square metres of finished housing at market rates. The conventional response would have been smaller units on cheaper land further from the city centre. The team proposed something else: build exactly half a house, and leave the other half for families to complete themselves.
The Framework Before the Finish
The insight was structural. The studio identified which parts of a house are irreplaceable for a family without capital — the concrete frame, the roof, the bathroom, the kitchen, the staircase — and built only those. The gaps between, marked out as empty voids in the axonometric drawings they later released as open-source documents, were the parts a family could fill incrementally: partition walls, additional bedrooms, a second storey. The design treated incompletion as an asset, not a compromise.
When you can’t do everything, do the irreplaceable half. The rest belongs to the people who live there.
By 2008, the pilot units had doubled in value. Families who had been living in informal settlements on the same site now owned homes worth more than the combined subsidy and their own labour. The model scaled to thousands of units. But the deeper lesson was not about cost — it was about what happens when design stops pretending it can solve everything and instead builds a scaffold for others to act.