The Syrian crisis has caused one of the largest episodes of forced displacement since World War II and some of the densest refugee-hosting situations in modern history. Syria's immediate neighbors host the bulk of Syrian refugees. The host countries were dealing with impact of inflow of refugees as well as consequences of the Syrian conflict such as disruption on trade and economic activity and growth and spread of the Islamic State. This survey was designed to generate comparable findings on the lives and livelihoods of Syrian refugees and host communities in Jordan, Lebanon and Kurdistan, Iraq. The goals of the survey originally were: to assess the socio-economic and living conditions of a representative sample of the Syrian refugee and host community population. to understand the implications in terms of social and economic conditions on the host communities. to identify strategies to support Syrian refugees and host communities in the immediate and longer term.