What is an ADU/JADU?

An ADU is an Accessory Dwelling Unit. It is a separate unit on a property that has a single-family home, apartment, or other residential use. ADUs can go by many different names, including granny flats, in-law units, backyard cottages, secondary units, and more. The key difference between an ADU and other types of structures, such as pool cabanas, is they have living space, bedroom(s), and a kitchen. An ADU can be attached to the main home, the garage, or can be a standalone structure. 

A JADU is a Junior Accessory Dwelling Unit. A JADU is different than an ADU in that they have to be part of an existing home and they have size restrictions. They can share the use of parts of the home, such as the bathrooms, and can have simpler kitchens with smaller appliances. JADUs are only allowed on a property with a single-family home on it, and the property owner has to live in either the single-family home or in the JADU. Development costs for a JADU are typically lower than an ADU.

Show All Answers

1. What is an ADU/JADU?
2. Can I have an ADU on my property?
3. How many ADUs can I have on my property?
4. How big can an ADU/JADU be?
5. Do I need to get a building permit for an ADU?
6. What are the setbacks for an ADU?
7. Can I convert my garage into an ADU?
8. What is the maximum height of an ADU?
9. Do I need to provide parking for the ADU?
10. Am I required to pay impact fees (e.g. sewer, water, school district) for an ADU?
11. Can zoning regulations, like the Hillside Height Overlay, prevent me from building an ADU?
12. Does my ADU have to match the design of my house?
13. Are ADUs allowed in high fire hazard areas?
14. What is the first step I need to take to get an ADU?