Unplanned Development offers a fascinating and fresh view into the realities of development planning. While to the outsider most development projects present themselves as thoroughly planned endeavours informed by structure, direction and intent, Jonathan Rigg exposes the truth of development experience that chance, serendipity, turbulence, and the unexpected define development around the world. Based on rich empirical sources from Southeast Asia, Unplanned Development sustains a unique general argument in making the case for chance and turbulence in development. Identifying chance as a leading factor in all development planning, the book contributes to a better way of dealing with the unexpected and asks vital questions on the underlying paradoxes of development practice.