The aging of the Dutch population will lead to a larger demand for housing for the elderly. But this is not the only effect the aging population will have on the housing market. Till the year 2000 the group of households in the reduction stage will grow substantially. These households experience a reduction in size because children leave their parents' home or one of the partners dies. These households behave quite differently on the housing market than younger households. Simulation models have been developed to analyse both growth and composition of the group of older households and their behaviour on the housing market till the year 2000. The result show that the housing needs of the elderly in the future differ widely from those of the present cohorts.