A plain-English, step-by-step guide to renting out your backyard ADU in California: rules, rent, deposits and taxes.
The short answer
Yes — you can rent out your ADU in California. Here's what matters most.
State law lets you rent your ADU separately from your house.
Cities can't require you to live on the property.
Many cities don't allow short-term (Airbnb-style) rentals in ADUs.
A newly built ADU is exempt from California's statewide rent cap for 15 years.
Why renting an ADU makes sense in 2026
ADUs are now one of the most common ways Californians add housing — and Bay Area rents keep climbing.
new ADUs permitted in California in 2025
Source: HCDnew homes in California is an ADU (26% in 2025)
Source: HCDaverage monthly asking rent, San Jose metro, Aug 2026
Source: Zillowrent growth in the San Jose metro since Jan 2021
Source: Zillow10 steps to rent out your ADU
Follow them in order. Each step tells you what to do in plain English, plus the law it's based on.
Check your city's rules
Your city decides details like the minimum rental length.
- Look up your city's ADU and short-term rental rules.
- Expect a 30-day minimum in many Bay Area cities — Airbnb-style stays are often not allowed.
- Junior ADUs (inside the house) can never be rented for less than 30 days.
Law/source: Gov. Code §§66315, 66323(e), 66333
Finish permits first
Only rent once the city has signed off on your ADU.
- Pass the final inspection.
- Get your certificate of occupancy.
- Keep it — its date starts your 15-year rent-cap exemption.
Law/source: Civ. Code §1947.12(d)(4)
Set up address & utilities
Make it easy for a tenant to live there on their own.
- Ask your city for a separate unit address and add a mailbox.
- Decide on shared or separate meters.
- Write down who pays for power, water, trash and internet.
Law/source: Gov. Code §66311.5
Update your insurance
A regular homeowners policy may not cover a rented unit.
- Tell your insurer you're renting the ADU.
- Ask about a landlord (dwelling-fire) policy.
- Ask your tenant to carry renters insurance.
Law/source: General guidance
Check rent control
Good news: a brand-new ADU is exempt from the state rent cap for its first 15 years.
- State rent cap & just-cause rules (AB 1482): new units are exempt for 15 years.
- Some cities (SF, Oakland, Berkeley, San José) have extra local rules — check your rent board.
- Put rent, term and renewal rules in writing.
Law/source: Civ. Code §§1946.2, 1947.12
Pick the right rent
Price against similar rentals nearby — not against your main house.
- Compare similar studios and 1-bedrooms in your area.
- Separate entrance, deck, laundry and a full kitchen all add value.
- Use our calculator to see rent vs. your loan payment.
Law/source: Zillow, HUD
What could your ADU rent for?
See rent, loan payment and payback for your city and model in under a minute.
Advertise & screen fairly
Treat every applicant the same way, using clear written criteria.
- You can't turn people away for race, religion, disability, family status or paying with a housing voucher (Section 8).
- Publish your screening criteria or review first-come, first-served.
- Charge only your real screening cost and give applicants their report.
Law/source: Gov. Code §12955; Civ. Code §1950.6
Sign a written lease
A clear lease protects you and your tenant.
- Rent, due date, length, deposit and move-out rules.
- Utilities, parking, pets, noise and yard use.
- Required California notices (bed bugs, Megan's Law, flood risk).
Law/source: Civ. Code §1946.2(f)
Collect a legal deposit
In most cases the maximum deposit is one month's rent.
- Small landlords may qualify for up to two months — never for service members.
- Take date-stamped photos at move-in and move-out.
- Return the deposit on time with an itemized list.
Law/source: Civ. Code §1950.5 (AB 12)
Taxes, repairs & records
Treat your ADU like a small business.
- Report rent on Schedule E of your tax return; the ADU is usually depreciated over 27.5 years.
- Property tax: only the new ADU is added — your house keeps its current Prop 13 value.
- Fix issues fast and keep a simple log of repairs, receipts and messages.
Law/source: IRS Pub. 527; Rev. & Tax. Code §71; Civ. Code §1941.1
How much rent can you charge?
Use local numbers as a starting point, then compare with similar rentals near you. For rent by model and city, see our Rental & ROI page.
| Area | Avg. asking rent, all homes (Aug 2026) | HUD fair rent, studio (2026) | HUD fair rent, 1-bedroom (2026) |
|---|---|---|---|
| San Jose metro | $3,815 | $2,621 | $2,982 |
| San Francisco metro | $3,409 | $2,485 | $2,977 |
| Oakland – Fremont | — | $2,142 | $2,385 |
Sources: Zillow Observed Rent Index (Aug 2026); HUD Fair Market Rents FY2026 (San Francisco area = SF, San Mateo, Marin). Bay Area homeowners expect about $2,000–2,500/month for an ADU (ABAG 2025 survey).
Do's and don'ts
Do
- Wait for your certificate of occupancy
- Check your city's short-term rental rules
- Update your insurance before move-in
- Take move-in and move-out photos
- Keep every receipt for taxes
Don't
- Rent before final inspection
- List on Airbnb without checking city rules
- Ask for more than one month's deposit
- Turn down a tenant who pays with a voucher
- Forget to report the rent on your taxes
Manage it yourself or hire a manager?
Manage it yourself
Best if you live on the property
One tenant, a few steps from your door. You handle the listing, showings, lease and repairs — and keep the full rent.
Hire a property manager
Best if you live elsewhere
A manager finds and screens tenants, collects rent and handles repairs for a monthly fee. You make the big decisions.
Your ADU landlord checklist
Tick each item as you go — or print it and keep it on the fridge.
Frequently asked questions
Can I rent out my ADU in California?
Yes. State law lets you rent an ADU separately from your home. Your city may require stays of 30 days or longer.
Do I have to live on the property?
No. Cities can't require you to live on the property to rent out an ADU. Junior ADUs that share a bathroom with the main house are the exception.
Can I rent my ADU on Airbnb?
Usually not for stays under 30 days. Many Bay Area cities restrict short-term rentals in ADUs — check your city's rules first.
Is my ADU subject to rent control?
A newly built ADU is exempt from California's statewide rent cap and just-cause rules for 15 years after its certificate of occupancy. Some cities have extra local rules.
How much deposit can I charge?
In most cases no more than one month's rent. Some small landlords can charge up to two months, but never for service members.
How much can I rent an ADU for in the Bay Area?
Bay Area homeowners expect about $2,000–2,500 a month for an ADU (ABAG, 2025). Average asking rent for all homes in the San Jose metro was $3,815 in August 2026 (Zillow). Size, location and features matter.
Will an ADU raise my property taxes?
Only the value of the new ADU is added. Your main house keeps its existing Prop 13 value.
How is ADU rent taxed?
You report it on Schedule E, deduct expenses and usually depreciate the ADU over 27.5 years. A tax professional can help with your situation.
Ready to build an ADU that pays you back?
Factory-built in Lathrop, CA — permits, delivery and installation included. Start with a free lot assessment.
Sources
- California HCD — ADU Handbook (2026) and Annual Progress Report data (2025)
- Association of Bay Area Governments (ABAG) — 2025 ADU Homeowner Survey
- Zillow Research — Zillow Observed Rent Index, Aug 2026
- U.S. HUD — Fair Market Rents FY2026
- California Government Code §§66311.5, 66315, 66323, 66333, 12955
- California Civil Code §§1941.1, 1946.2, 1947.12, 1950.5, 1950.6 · Rev. & Tax. Code §71
- IRS Publication 527 (2025)
This guide is general information about California law as of October 2026 — not legal, tax or insurance advice. Rules change often, and many Bay Area cities add their own rent, eviction, registration and short-term rental rules. Before renting, check with your city, a California landlord-tenant attorney and a tax professional.
