Back in the 120 square feet they call home, there are elderly parents, brothers, sisters and others from the immediate gene pool. All heaped under one roof in a single room, not because they are poor but because Mumbai has very little space and too many dreams. Half of the city lives in such one-room arrangements or chawls. The most historical among them, for reasons of time alone and not elegance, are the ones built two decades before Independence by the Bombay Development Directorate. Known only as bdd chawls, they are 207 identical three-storeyed buildings with 16,000 one-room homes from which "neither heaven nor earth could be seen", according to architect Claude Batley writing in the 1930s.