How Much Can You Earn Renting an ADU?
Real ADU rental income data by state and city. Learn what to expect, how to price your unit, how to calculate your break-even, and whether short-term or long-term rental makes more sense.
Last updated: April 1, 2026
What ADUs Actually Rent For
Rental income is the primary financial justification for most ADU projects. Here's what homeowners are actually charging, based on Zillow and local listing data from early 2026.
California
| Market | Studio/1BR ADU | 2BR ADU |
|---|---|---|
| San Francisco Bay Area | $2,200–$3,500/mo | $3,200–$4,800/mo |
| Los Angeles | $1,800–$2,800/mo | $2,600–$3,800/mo |
| San Diego | $1,700–$2,600/mo | $2,400–$3,500/mo |
| Sacramento | $1,200–$1,800/mo | $1,600–$2,400/mo |
| Fresno | $900–$1,400/mo | $1,200–$1,800/mo |
Oregon
| Market | Studio/1BR ADU | 2BR ADU |
|---|---|---|
| Portland | $1,400–$2,200/mo | $1,900–$2,800/mo |
| Eugene | $1,100–$1,600/mo | $1,400–$2,000/mo |
Washington
| Market | Studio/1BR ADU | 2BR ADU |
|---|---|---|
| Seattle | $1,600–$2,600/mo | $2,200–$3,400/mo |
| Tacoma | $1,100–$1,700/mo | $1,500–$2,200/mo |
Colorado
| Market | Studio/1BR ADU | 2BR ADU |
|---|---|---|
| Denver | $1,400–$2,200/mo | $1,900–$2,800/mo |
| Boulder | $1,600–$2,600/mo | $2,200–$3,200/mo |
Texas
| Market | Studio/1BR ADU | 2BR ADU |
|---|---|---|
| Austin | $1,400–$2,200/mo | $1,900–$2,700/mo |
| Dallas | $1,100–$1,700/mo | $1,500–$2,200/mo |
| Houston | $900–$1,500/mo | $1,300–$1,900/mo |
How to Calculate Your ROI
Use this simple framework before committing to a budget:
Annual Cash Flow
Monthly rent × 12 = Gross annual income
Gross annual income × 0.90 = Net income (assuming 10% vacancy + expenses)
Net income - Annual loan payment = Annual cash flow
Example:
- $1,800/month × 12 = $21,600 gross
- $21,600 × 0.90 = $19,440 net
- Loan payment on $200K at 7%/25yr = ~$16,800/year
- Annual cash flow: $2,640
Break-Even Timeline
Total project cost ÷ Annual net income = Break-even years
Example: $220,000 project ÷ $19,440 net income = 11.3 years
Cap Rate
Cap rate tells you the unleveraged return on the investment:
Annual net income ÷ Total project cost = Cap rate
Example: $19,440 ÷ $220,000 = 8.8% cap rate
A cap rate above 6% is generally considered a solid investment in residential real estate.
Use our ROI calculator to run these numbers for your specific situation.
Free Newsletter
Get ADU Updates in Your Inbox
State law changes, financing tips, and project guides — no spam, unsubscribe anytime.
Long-Term vs Short-Term Rental
Long-Term Rental (12+ month lease)
Pros:
- Predictable income
- Less management intensive
- Most cities allow without special permits
- Lenders count income for mortgage qualification
Cons:
- Lower income potential than STR in most markets
- Tenant turnover is disruptive
Best for: Homeowners who want passive income and minimal management burden.
Short-Term Rental (Airbnb/VRBO)
Pros:
- Higher gross income potential in tourist markets
- Flexibility to use the unit yourself
- Easy to price dynamically
Cons:
- Higher management burden (cleaning, check-ins, guest communication)
- Many cities restrict or ban STRs for ADUs
- Income is less predictable
- Lenders won't count STR income for mortgage qualification
Best for: Markets with strong tourism or business travel, homeowners willing to manage actively, and cities that permit ADU STRs.
Check your city's STR ordinance before assuming you can Airbnb your ADU. Los Angeles, for example, restricts short-term rentals to primary residences — meaning a detached ADU may not qualify.
What Affects Your Rent
Size and bedroom count — 2BR ADUs command a meaningful premium over studios. If you have the square footage, adding a second bedroom almost always improves ROI.
Separate entrance — units with a completely private entrance and no shared spaces with the main house rent for 10–20% more.
Parking — in car-dependent markets, included parking can add $100–$200/month.
Laundry — in-unit washer/dryer is now expected in most markets. Shared laundry reduces appeal.
Outdoor space — a small private patio or yard dramatically improves desirability, especially post-pandemic.
Finishes — mid-grade finishes (quartz counters, LVP flooring, updated fixtures) allow you to charge market rate. Premium finishes rarely justify their cost in rental return.
Expenses to Plan For
Gross rent isn't what you keep. Budget for:
- Vacancy: 5–10% of gross income (1 month empty per year = 8%)
- Maintenance: 1% of construction cost per year
- Property management: 8–12% of gross rent if you hire a PM company
- Insurance: Add ADU rider to your homeowner's policy ($50–$150/month)
- Utilities: If you pay any (water, trash, internet)
- Property taxes: ADU will increase your assessed value at next reassessment
A realistic expense ratio is 35–45% of gross income when you include all costs.
Is It Worth It?
For most homeowners in high-rent markets — yes, clearly.
In a market like San Francisco or Seattle where a small ADU rents for $2,000+/month, even a $300,000 project generates meaningful returns and significant property value increase.
In lower-rent markets (Fresno, Houston, smaller cities), the math is tighter. A $200,000 project that rents for $1,000/month may take 15+ years to break even on pure cash flow — though property value appreciation can still make it worthwhile.
The best ADU projects are in markets where:
- Rents are high relative to construction costs
- Property values are appreciating
- State law makes permitting straightforward
Run your specific numbers with our ROI calculator before committing.