As the population of older Americans continues to increase, more and more elderly persons will seek diverse living arrangements. Residential facilities must be designed to meet their needs. Person-environment congruence may be an important determinant of residential satisfaction and relocation stress for the elderly. Residents (N=107) of eight homes for the aged completed the Environmental Preferences Questionnaire which assesses preferences along the dimensions of territoriality, isolation, stimulation, and order/organization. Environmental press was determined for each dimension in addition to morale, residential satisfaction, and desire to stay. Oversupply conditions of territory, isolation, stimulation in the immediate environment, and order resulted in optimal satisfaction. Congruence per se did not appear to be better than incongruence for well-being on all dimensions. In most cases, a moderate or extreme oversupply of environmental press relative to needs produced greater well-being. Results suggest that by providing maximum opportunities for all forms of privacy in the overall environment, and maximum stimulation and order in individual rooms, residential facilities may more successfully meet the needs of the elderly. (Author/NRB)