Abstract: Urbanising sea change landscapes are commonly associated with people seeking better lifestyles and 'greener pastures', in the process of which consumption of natural resources increases markedly. This paper presents a case study of a regional coastal settlement south of Sydney, NSW that has been subject to rapid 'sea change' urbanisation over the last 50 years. As a result, major changes are evident in land use/land cover, most particularly in the state and nature of green resources which have been affected by urban growth. Spatio-temporal patterns of urban development record an evolving landscape in which human influences have produced a loss of green resources and changes to local ecosystems. These changes have important implications for landscape planning and natural resource management, both directly for urbanising coastal landscapes and indirectly for the potential of these areas to act as a safety valve for growth of Australian capital cities. A brief examination of human-environment interactions in the use and management of green spaces in sea change landscapes will question the notion of 'sustainable development' of sea change destinations. It is argued that maintaining the social and ecological integrity of green spaces is essential for the sustainable planning and management of natural resources in urbanising sea change landscapes.