The proportion of older people (65+) in the population is increasing steadily worldwide due to longer life expectancy and decreasing birth rates. The ageing population often presents with chronic diseases that result into limitations in the activities of daily living. People with disabilities, either congenital or acquired, also face various degrees of limitations and need some form of assistance. Disabilities in general and limitations that are common in old age, including epidemiological data, are discussed. Indubitably, the need for adapting the living environment of this population becomes apparent. Three case studies with older people and people with disabilities in different situations are presented as examples of adaptation of the bathroom area. Concrete solutions that have been proposed with respect to their limitations and the way they successfully solved their problems by means of home adaptations using mostly low-tech solutions are described. Overall, these three cases encompass typical situations encountered by aging and disabled persons.