Module 5 · Lesson 6
Owner-Occupancy Rules: Do You Have to Live There?
For standard ADUs, California permanently banned owner-occupancy requirements. For JADUs, the owner generally must live on-site. The split explained.
"If I build an ADU, do I have to keep living there?" The answer splits cleanly by unit type.
Standard ADUs: no. California has permanently banned cities from requiring owner-occupancy for regular ADUs. You can build an ADU, move across the country, and rent out both the house and the unit. This protection used to be temporary; it's now permanent law, which matters if you're planning long-term or thinking about future sale — the buyer inherits the same freedom.
JADUs: yes (mostly). Junior ADUs are the exception: the owner generally must live somewhere on the property (in the main house, the JADU, or the ADU). Recent law has narrowed this — as of 2026, the requirement centers on JADUs that share a bathroom with the main house — but the safe planning assumption for a JADU is that someone with their name on the deed lives on-site.
Why the difference? JADUs get lighter requirements (shared bathroom allowed, minimal kitchen, no impact fees) precisely because they're treated as part of an owner-occupied home rather than a fully independent rental. Lighter rules, tighter strings.
Planning implication: if your strategy involves ever renting out the entire property — both units, you elsewhere — build a standard ADU, not a JADU. If you'll always live on-site, the JADU's owner-occupancy string costs you nothing and its savings are real.
Key takeaways
- Standard ADUs: owner-occupancy requirements are permanently banned — rent both units from anywhere.
- JADUs: plan on someone on the deed living on the property.
- The JADU trade: lighter requirements and fees in exchange for the owner-occupancy string.
- Renting the whole property someday? Choose a standard ADU.