The Rental Playbook

Turning Your ADU Into Income

The ADU is built. The certificate of occupancy is in hand. Now you need tenants and income. Whether you're renting both the main dwelling and the ADU, or just the ADU on a property you already own, the rental strategy you choose — and how well you execute it — determines your cash flow, your refinance value, and your long-term returns.

Three Rental Strategies

Strategy 1: Long-Term Rental (12+ Month Leases)

Best for: Investors seeking stable, predictable cash flow with minimal management burden. This is the default strategy for most ADU investors.

Pros:

• Predictable monthly income
• Lower vacancy risk (tenants stay for years)
• Lower management intensity (no turnovers every few days)
• Easier to qualify for DSCR refinancing (lenders prefer long-term lease income)
• Less regulatory risk (LTR is permitted virtually everywhere)

Cons:

• Lower gross revenue than STR in most markets
• Less flexibility to adjust rents (locked into lease terms)
• Eviction risk if you get a bad tenant

Typical ADU rental profile:

• Studio or 1BR ADU: $800–$2,000/month depending on market
• 2BR ADU: $1,200–$2,800/month depending on market
• Combined property income (main + ADU): typically 50–90% higher than the main dwelling alone

Strategy 2: Mid-Term Rental (1–6 Month Leases)

Best for: Markets with strong demand from traveling professionals — travel nurses, corporate relocations, insurance adjusters, contract workers, visiting professors.

Pros:

• Higher monthly rates than LTR (typically 20–40% premium)
• Furnished units command premium rents
• Tenants are typically working professionals (lower damage risk)
• More flexibility to adjust pricing seasonally
• No long-term lease commitment — easier to sell the property if plans change

Cons:

• More turnover than LTR (marketing and cleaning between tenants)
• Requires furnishing the unit (upfront cost of $5K–$15K)
• Income can be seasonal or inconsistent
• Some markets have limited mid-term demand

Where mid-term works best:

• Cities with major hospitals (travel nurse demand)
• Markets with significant corporate presence (relocation demand)
• College towns (visiting faculty, graduate students)
• Markets near military bases (PCS and TDY demand)

Strategy 3: Short-Term Rental / Airbnb (Nightly or Weekly)

Best for: Markets with strong tourism or visitor demand, properties with design appeal, and investors willing to manage higher operational complexity for higher revenue.

Pros:

• Highest gross revenue potential (2–3x LTR in strong STR markets)
• Dynamic pricing — adjust nightly rates based on demand
• No long-term tenant risk — bad guests leave in a few days
• ADUs are ideal STR units — private, self-contained, separate entrance

Cons:

• Highest management intensity (guest communication, cleaning, restocking)
• Revenue is volatile and seasonal
• Regulatory risk: many cities restrict or ban STRs, require permits, or limit the number of STR nights per year
• STR income may not be recognized by DSCR lenders for refinancing
• Requires furnishing and ongoing maintenance of furnishings
• Platform fees (Airbnb charges 3% host fee; guests pay a service fee)
• Higher insurance costs (standard landlord policies exclude STR activity)

Critical regulatory check: Before you pursue an STR strategy, verify your local regulations. Many cities now require:

• An STR permit or license
• Payment of transient occupancy tax (hotel tax)
• Compliance with noise, parking, and occupancy limits
• Registration with the city
• Hosting only in owner-occupied properties (this kills the pure investor STR model in some jurisdictions)

Check Chapter 5 for how to research local STR regulations as part of your regulatory due diligence.

Setting Rents

Comp Research

For long-term rentals:

• Search Zillow, Apartments.com, and Craigslist for comparable rentals in the same zip code
• Filter for similar unit size (sq ft), bedroom/bathroom count, and condition
• Note whether comps include utilities or not
• Look at both asking rents and days on market (if units are sitting for weeks, rents may be too high)
• Check Rentometer for neighborhood-level rent estimates

For mid-term rentals:

• Search Furnished Finder (the dominant platform for travel nurse housing)
• Check corporate housing listings in your market
• Call local hospitals and ask travel nurse recruiters what housing stipends are ($2,000–$4,000/month is typical for most markets)

For short-term rentals:

• Use AirDNA or Rabbu for STR revenue projections in your specific zip code
• Search Airbnb and VRBO for comparable listings (similar size, amenities, and location)
• Note average nightly rate, occupancy rate, and monthly revenue
• Be conservative: assume 65–70% occupancy, not the 85%+ that STR platforms advertise

Pricing Your ADU

Long-term rental formula:

• Research 5–10 comparable rentals
• Price at the median of the comp range for average-quality units
• Price at the 75th percentile if your unit has premium features (new construction, in-unit laundry, private outdoor space, modern finishes)
• Never price at the top of the range unless your unit is genuinely best-in-class

Mid-term rental formula:

• Start with LTR comp rents
• Add 20–40% for the furnished premium
• Adjust seasonally (demand for travel nurses peaks in winter in some markets)

Short-term rental formula:

• Use AirDNA's revenue estimate as a starting point
• Price dynamically using tools like PriceLabs, Beyond Pricing, or Wheelhouse
• Set minimum nightly rates that ensure profitability even at lower occupancy
• Model conservatively in RISE: use 65% occupancy and your average nightly rate to estimate monthly income

Furnishing an ADU for Mid-Term or Short-Term Rental

If you're pursuing an MTR or STR strategy, the ADU needs to be fully furnished and move-in ready.

Furnishing Budget

Furnishing Essentials (Studio / 1BR ADU)

Living area:

• Sofa or loveseat
• Coffee table
• TV with streaming capability (smart TV)
• Lamp or floor light
• Side table

Bedroom:

• Queen bed with quality mattress
• Nightstands (2)
• Dresser
• Hangers and closet organization
• Blackout curtains

Kitchen:

• Full dinnerware set (plates, bowls, glasses, mugs) for 4
• Full cookware set (pots, pans, utensils, knives)
• Coffee maker (or Keurig — expected by guests)
• Toaster, basic appliances
• Dish towels, cleaning supplies

Bathroom:

• Towel sets (at least 2 per guest capacity)
• Bath mat
• Shower curtain
• Toiletries (STR — provide basics; MTR — not expected)

General:

• Washer/dryer (in-unit or access to main home laundry)
• Iron and ironing board
• Vacuum or cleaning supplies
• WiFi setup (essential — non-negotiable for any furnished rental)
• Lockbox or smart lock for keyless entry

The Photography Factor

For STR and MTR listings, professional photography isn't optional. A well-shot listing with 15–20 photos can increase booking rates significantly. Budget $150–$300 for a professional real estate photographer. It pays for itself within the first booking.

Tenant Screening (Long-Term Rentals)

A bad tenant costs far more than a vacancy. Screen rigorously:

Screening Criteria

• Credit score: 620+ minimum for most markets; 650+ preferred
• Income: Monthly gross income of at least 3x the rent
• Rental history: Contact previous landlords. Ask: Did they pay on time? Did they leave the unit in good condition? Would you rent to them again?
• Criminal background: Run a background check through a compliant screening service
• Employment verification: Confirm current employment and income

Fair Housing Compliance

Your screening criteria must be applied consistently to every applicant. You cannot discriminate based on race, color, national origin, religion, sex, familial status, or disability (federal protected classes). Many states and cities add additional protected classes (source of income, sexual orientation, gender identity, age, etc.).

Document your screening criteria in writing and apply them uniformly. Use a professional tenant screening service (RentPrep, TransUnion SmartMove, or similar) that generates standardized reports.

The Lease

Use a state-specific residential lease agreement. Do not download a generic template from the internet. Critical ADU-specific lease provisions:

• Shared area usage: If the main dwelling and ADU share a yard, driveway, or laundry, define who has access to what and when.
• Parking: Specify which parking spaces are assigned to the ADU tenant.
• Utilities: Clarify whether utilities are included in rent or separately metered. If the ADU is not separately metered, specify how utility costs are allocated.
• Quiet hours and noise: Establish expectations for noise, especially if the ADU is close to the main dwelling.
• Guest and occupancy limits: Define the maximum number of occupants for the ADU.
• Maintenance responsibilities: Clarify who maintains the yard, shared walkways, trash bins, etc.

Utility Metering and Cost Allocation

This is a common headache for ADU properties. Here are your options:

Option 1: Separate Meters

Install separate utility meters for the ADU (electric, gas, water). Each tenant pays their own utilities directly to the utility company.

Pros: Cleanest arrangement, no disputes, tenants are incentivized to conserve Cons: Upfront cost of installing separate meters ($2,000–$10,000+ depending on the utility and jurisdiction), some utilities won't install new residential meters in certain areas

Option 2: Sub-Meters

Install sub-meters that measure the ADU's usage. You pay the utility bill and invoice the tenant for their measured usage.

Pros: Less expensive than full separate metering, accurate allocation Cons: You're still the account holder, requires monthly measurement and billing, some states regulate how landlords can bill for sub-metered utilities

Option 3: Include Utilities in Rent

Build the estimated utility cost into the monthly rent. The tenant pays one flat amount.

Pros: Simplest to manage, attractive to tenants (predictable costs) Cons: You absorb the risk of high usage, no conservation incentive for the tenant, harder to adjust if utility rates increase

Option 4: Fixed Utility Allocation

Charge a flat monthly utility fee separate from rent (e.g., "$150/month for utilities").

Pros: Simpler than sub-metering, gives you some cost recovery Cons: May not accurately reflect actual usage, check local laws — some jurisdictions regulate utility billing by landlords

Recommendation: If the project budget allows, install separate meters during construction. It's cheaper to do during the build than after, and it eliminates utility disputes for the life of the property. If separate metering isn't feasible, include a reasonable utility estimate in the rent and adjust annually.

Vacancy Minimization

Every month of vacancy is lost income that eats directly into your returns. Minimize vacancy with:

• Pre-marketing: List the unit 30–45 days before it's available. For an ADU under construction, start marketing when you're 30 days from CO.
• Professional listing: Quality photos, detailed description, accurate floor plan. List on Zillow, Apartments.com, Facebook Marketplace, and Craigslist at minimum.
• Competitive pricing: An overpriced unit that sits vacant for two months costs more than a fairly priced unit that rents immediately. If you're not getting inquiries within 7 days, your price is too high.
• Fast turnaround: When a tenant gives notice, immediately begin marketing the unit. Schedule showings during the notice period (with proper notice to the existing tenant per your state's landlord-tenant law).
• Lease renewal strategy: Offer reasonable renewal terms to good tenants. The cost of a one-month vacancy (lost rent + cleaning + marketing) is typically $2,000–$4,000+. A $50/month rent increase at renewal is almost always better than losing the tenant.

Modeling Rental Income in RISE

For the DSCR/Rental scenario in RISE:

• Enter total monthly rent (main dwelling + ADU combined)
• Include realistic vacancy assumption: use 5% for strong markets, 8–10% for softer markets
• Include property management fees if applicable (8–12% of collected rent)
• Include maintenance reserve (5–10% of rent)
• Enter monthly taxes, insurance, and utilities at actual costs

RISE will calculate your DSCR, monthly cash flow, and cash-on-cash return based on these inputs. If the DSCR is below 1.0, the property doesn't generate enough rent to cover the debt — adjust your assumptions or reconsider the strategy.