They weren't interested in renting an apartment long term, so they opted for a more affordable option: an accessory dwelling unit, or ADU. They now live in a 1,200-square-foot, three-bedroom, ...

Generally, that means it has its own kitchen and bathroom facilities, as well. No matter where it’s located or what it contains, the ADU is considered a part of your property and your real estate lot.

In housing-strapped Los Angeles, a single mom adds an ADU to accommodate her three teenagers and aging parents.