An accessory dwelling unit with two bedrooms and two bathrooms behind the main house in Palo Alto. Embarcadero Media file photo by Veronica Weber. Palo Alto will have to revise its new laws ...
The names vary — granny flat, casita, carriage house, or in-law apartment — but the much less romantic, yet official, name for a tiny house in the backyard is accessory dwelling unit (ADU).
These backyard homes, called accessory dwelling units, or ADUs, are small housing units ranging from 150 square feet to 1,200 square feet, depending on where you live. The average cost of a unit ...