Liveability is a concept and factor being used by urban planners and designers to better understand how people perceive the places they live and work in and how it affects their life choices. Existing normative liveability indices are based on measurable and reproducible factors. They aim to objectively compare various residential conditions and their evolution. However, better understanding decisional processes attached to transport or residential choices necessitates a more dynamic approach. The concept of perceived liveability addresses the subjective nature of individual assessments of local environmental conditions. First, we have developed an empirical model based on subjective ranking and evaluation of six environmental factors. Then, we have conducted a pilot Computer Assisted Telephone Interviewing (CATI) survey in Sydney to inform our empirical model. Finally, a linear additive model was fitted to the survey data in order to represent various levels of satisfaction based on residential and socio-demographic conditions.