27/02/2026
A Junior ADU (JADU) — which is a smaller unit created within the existing home — may share a bathroom with the primary residence.
The key requirement?
There must be interior access between the JADU and the main home.
Unlike a detached or standard ADU, a JADU does not strictly need its own separate bathroom — but it must still meet local building and zoning requirements.
In Santa Cruz County, understanding the difference between an ADU and a JADU can impact:
• Layout design
• Budget
• Permitting timelines
• Long-term flexibility
If you’re considering converting space inside your home, a JADU may be an option worth exploring.
Not sure which option fits your property? Let's check.