The papers are generally available only in their original language - English or French -with a summary in the other. The use of such data by the OECD is without prejudice to the status of the Golan Heights, East Jerusalem and Israeli settlements in the West Bank under the terms of international law. The paper also greatly benefited from comments by participants to the European Commission Seminar on Housing for the Social Situation Monitor (December 2014) and the CECODHAS Housing Europe Social Affairs Committee meeting of November 2014. The authors would also like to thank the experts who provided information through the OECD Questionnaire on Affordable and Social Housing.