This review, prepared for the Special Rapporteur to Brazil, Raquel Rolnik, seeks to present a summary of the issues involved in addressing tenure security and insecurity. The report discuses adequate housing as a component of the right to an adequate standard of living, and on the right to non-discrimination. In doing so, it reports on many studies and published sources, but also draws on personal experience. Prepared for an expert group meeting on Security of Tenure convened by the Special Rapporteur on 22-23 October 2012.