Using the specific vocabulary of different disciplines and geographic regions, the contributions to this book analyse the underlying thinking behind, and the expectations projected on, diverse models of collaborative housing. The authors are aware of the qualities of contemporary co-housing, but they go beyond advocacy to investigate the conditions under which co-housing can be successful as a strategy for housing provision; can offer solutions for sustainable urban development; or indeed can contribute to involuntary or intentional gentrification. This book was originally published as a special issue of the