This paper is focussed on the expanding phenomenon of long term residency in relocatable dwellings, particularly as it has evolved in NSW. The paper provides a description of the nature of long term relocatable home estates, including their economic and social dimensions, and an account of their metamorphosis from traditional caravan parks. Some serious social implications are reviewed, and particular attention is paid to the role and the substantially economic motives of government in supporting their growth. The analysis is approached by way of a survey of current housing and urban infrastructural supply problems in Australia set within the context of broader economic policy and directions. It concludes that the growth of long term residence in relocatable dwellings will help polarise Australia into housing rich and housing poor.