One affordable living option for older adults is an accessory dwelling unit (ADU). An ADU is a small dwelling or apartment that can be created on your current home property or that of a relative, for example. It can be a separate small dwelling, a dwelling attached to a home (an addition), or a full apartment within a larger home (such as a converted basement or other space). In all cases, it should be designed with a step-free entrance, a usable bathroom, and other key features. Start here to find information on design, development, and costs as well as guidance for how to proceed.