Introduction. A continent in transition -- The physical background -- The scarcity of statistics -- The dilemma and suggestions for improvement. Adjustment to urban life -- Family planning -- Development projects: politics, housing, and the cash pinch -- Planned lot development -- The problem of relocation -- Physical planning and design -- Minimizing the spread of squatters -- Methods of implementation -- Major impediments to urbanization and housing in the developing countries. Imbalance between population and economic development -- Lack of constructive and co-ordinated planning -- Shortage of staff -- Insufficient study of the economics and financing of housing -- Lack of research on indigenous building materials and methods of improvement -- Incommensurate allocation of government funds