Residential mobility not only involves choices about where one lives but also decisions about housing costs, as well as the type and size of housing units, their quality and tenure. Some recent studies of residential mobility have not analysed trends in housing supply such as construction, costs, and vacancy rates. Instead they consider these factors as part of the context in which individuals and households make choices. These contributions show that household size, composition and income, the age of the residents and their stage in the life course play a crucial role in residential mobility. Studies by psychologists, sociologists and health researchers have shown that housing preferences, choices and life-course trajectories are a complex bundle of attributes including how individuals interpret their well-being and health status. Although health reasons have often been omitted from recent interpretations of residential mobility and housing demand, this paper argues that they should not be ignored. A household survey in the Canton of Geneva, completed in 2000, analysed how and why a representative sample of the population ordered their stated preference to move or stay in their domicile. The results show that the wish to move can be better understood if the age, length of tenure, past residential experience, housing availability, affordability, and effective occupancy conditions are considered. The location of the housing unit, its cost, and personal relations with neighbours were not significant in determining whether the respondents wished to move. Although fiscal reasons play a minor role, there are other important factors concerning the well-being of specific population groups (e.g. the elderly, young adults) that explain why they are satisfied but would still like to move elsewhere in the same neighbourhood.