Introduction: Falls are one of the most important geriatric syndromes; three out of ten older adults (OA) fall once a year, and more than 50% of these falls take place in the home. The objective of the present study was to analyse the presence, interaction and intervention of risk factors for falls, both environmental (ERF) and behavioural (BRF), in every living accommodation; and to check whether modifications regarding the risk factor had been implemented by older adult fallers (OAF) who underwent preventive treatment. Development: The sample included 129 independent older adults, both fallers and non- fallers, from the city of Mar del Plata. The relevant data was built by means of an assessment tool by direct observation in the living space. The data were analysed applying a Scale of Existing Risk Factors (High - Average - Low). The results show the presence and interaction of ERF and BRF in different areas, and of certain conditions (which according to the present study are intervening conditions in 3/4 of every 5 falls in the home). Difficulties have been detected in the OA being able to identify the above-mentioned existing risks; and even when risks happen to be identified, modifications are not necessarily implemented. The conclusions of the present study will serve as the base to define and implement a re-education programme concerning habits and behaviours in the adaptation of the living space as an unavoidable condition to prevent falls. It would be advisable to consider the relevant conclusions when assessing, when implementing preventive approach plans, and when designing health policies. ISBN: 85-98416-32-0 Nota : En la publicaciòn figuran dos abstract , es un error de la edición del Congreso