Affordable Housing Within Your Existing Home
A Junior ADU (JADU) is created by converting part of your existing home — typically a bedroom, attached garage, or storage area — into a separate living unit up to 500 square feet. JADUs are the most affordable ADU option and can be built alongside a full ADU.
Junior ADU Benefits
- Most affordable ADU type — uses existing home structure
- Up to 500 square feet of independent living space
- Can be built IN ADDITION to a full ADU on the same property
- Separate entrance required, but can share bathroom with main home
- Efficiency kitchen allowed (no full-size appliances required)
- No impact fees in most California cities