An in-law apartment is a separate housing arrangement within a single-family home or on your lot. It may also be referred to as a second unit, accessory apartment, or accessory dwelling unit. An in-law apartment is a complete living space and includes a private kitchen and bath.

An in-law apartment may provide a living space for a caretaker or may be rented to provide additional income to you. Many local or state governments have restrictions about the addition of a second apartment on your property. You should consult your local city or county government about zoning and other restrictions, and for help with an in-law apartment.

To find out about in-law apartments visit the National Resource Center on Supportive Housing and Home Modification website.