Las Vegas property owners with underused square footage are leaving real money on the table. The metro’s rental vacancy rate sits below 4% according to the U.S. Census Bureau’s American Housing Survey, and demand for smaller, affordable units continues to outpace supply. A spare bedroom managed as a long-term rental generates $750-$1,000 per month. A garage studio conversion brings $1,000-$1,300. A properly permitted casita or ADU commands $1,200-$1,800. This guide covers every space type, realistic conversion costs, Clark County permit requirements, and the tax rules that determine net return.
Rental income from unused space can offset a mortgage, fund property improvements, or build the kind of passive rental income that compounds over years. But each conversion type carries different costs, timelines, and risk profiles. Understanding those differences before committing to a project separates investors who profit from those who break even.
Key Takeaways
- Las Vegas spare bedroom rentals average $875/month in 2026, up 7% year-over-year (Zillow Rental Manager, 2025)
- ADUs and casitas earn $1,200-$1,800/month and typically recover construction costs within 4-6 years at current rents
- Short-term rentals generate 40-60% more annual revenue than long-term leases, but require a Clark County STR permit
- The IRS 14-day rule (Section 280A) allows up to 14 rental days per year to be excluded from income tax reporting
- Las Vegas rental vacancy remains under 4%, sustaining strong absorption of new rental units across all size categories
Spare Bedrooms and Bonus Rooms Generate $750-$1,000 Per Month in Las Vegas
Renting an unused bedroom to a long-term tenant is the lowest-barrier, highest-speed path to rental income. Las Vegas spare bedroom listings average $875/month in 2026 (Zillow Rental Manager), requiring minimal renovation beyond cleaning, a dedicated lock, and baseline furnishing. Landlords in high-demand zip codes such as Summerlin, Henderson, and the Medical District consistently see $950-$1,100 for furnished rooms near major employment centers.
According to Zillow’s 2025 Rental Manager data, Las Vegas room rentals increased 7.2% year-over-year, driven by strong in-migration and a below-average vacancy rate. The median monthly room rental in Clark County reached $875, with furnished units in Summerlin commanding up to $1,100. Landlords renting to employed, single tenants report lower turnover than comparable whole-unit rentals.
Before listing a spare room, confirm your lease or HOA documents permit it, review Nevada NRS Chapter 118A to understand landlord-tenant obligations in shared-space arrangements, and prepare a written room rental agreement even for month-to-month arrangements. A written agreement clarifying shared kitchen, laundry, and parking access prevents the disputes that end these arrangements early.
Room rentals do not trigger county building permit requirements, but they do affect homeowner’s insurance. Notify your carrier before placing a tenant. Standard policies exclude coverage for paying guests. A landlord insurance policy for Nevada typically adds $150-$300 per year and covers premises liability if a tenant is injured on your property.
Garage Conversions Create Standalone Studios at a 14-21 Month Payback
Converting an attached or detached garage into a rentable studio unit is one of the most common space-to-income projects in Las Vegas. A basic conversion including insulation, drywall, mini-split HVAC, flooring, and a small bathroom typically costs $15,000-$25,000 depending on the condition of the existing space. At $1,050-$1,200 per month in rent, a $20,000 conversion pays for itself in 17-21 months.
Remodeling Magazine’s 2025 Cost vs. Value Report estimates garage conversion projects in the Mountain West region average $19,000-$23,000 for a basic studio configuration. Las Vegas contractors report average project costs near $21,500, with bathroom additions increasing that figure by $4,000-$6,000. At a median rental rate of $1,100 per month, the average break-even period runs 17-21 months depending on operating expenses.
Clark County requires a building permit for any garage conversion that adds plumbing or changes occupancy classification from storage to residential. The permit process involves submitting plans to the Building and Safety Division, scheduling inspections for framing, plumbing, mechanical, and electrical work, and receiving a final certificate of occupancy. Budget 6-10 weeks for permit approval and allow for a $500-$1,500 permit fee depending on project scope.
A garage conversion must be permitted as an accessory dwelling unit to be legally rented as a standalone unit. Renting an unpermitted space creates liability exposure and can result in fines from Clark County Code Compliance. The permitting process adds cost and time but protects your investment and enables you to deduct conversion costs from rental income under IRS Publication 527.
Backyard Casitas and ADUs Command $1,200-$1,800 Per Month in Las Vegas
Accessory dwelling units built in backyards or as attached additions represent the highest-return conversion option in the Las Vegas market. A 400-600 square foot casita with its own entrance, bathroom, and kitchen rents for $1,200-$1,800 per month depending on location and finish quality. Henderson and Summerlin casitas routinely reach the upper end of that range due to proximity to employers and amenities.
The National Association of Realtors’ 2024 report on accessory dwelling units found that ADUs in Sunbelt metros generate median annual rental income of $16,800, compared to $11,400 for spare bedroom rentals. NAR research data shows ADU permits increased 75% in Western states between 2021 and 2024, driven by state-level zoning reforms and rising rents. Las Vegas ADU rents average $1,400 per month.
The construction cost for a new detached casita in Las Vegas ranges from $60,000-$120,000 depending on size, foundation type, and finishes. An attached ADU or above-garage unit typically runs $40,000-$70,000. At $1,450 per month in rent, an $80,000 investment generates $17,400 annually before expenses, yielding a gross return of approximately 21.7% and a payback period of roughly 55-58 months. That timeline improves substantially if rents increase over the holding period.
Clark County’s ADU ordinance allows one ADU per single-family parcel in most residential zones. The unit must meet minimum setback, lot coverage, and parking requirements. Nevada AB 386 (2021) preempted local restrictions that had prohibited ADUs outright, so most Las Vegas Valley jurisdictions now allow them with a standard building permit. Review the full picture for buying Las Vegas rental investment properties before committing to a major construction project. Read more in our related guide: rental investment.
Short-Term Rentals Outperform Long-Term Leases by 40-60% in Annual Revenue
Short-term rentals on Airbnb and VRBO generate substantially more gross revenue than long-term leases in the Las Vegas market. A permitted one-bedroom unit averaging 70% occupancy at $150 per night generates $3,150 per month, versus $875 per month for a long-term room rental. Even accounting for platform fees (15-18%), cleaning costs, and higher operating expenses, net STR income typically exceeds long-term rental net income by 30-40%.
AirDNA’s 2025 Las Vegas Market Report shows the metro’s average daily rate for entire-home STR listings at $187, with occupancy averaging 71%. Annual revenue per active listing reached $28,900, compared to a median $10,500 for equivalent long-term rentals. Las Vegas ranked among the top 15 U.S. markets for STR revenue per available night, driven by convention and tourism demand throughout the year.
Clark County requires a short-term rental license for any property rented fewer than 31 consecutive days. Owner-occupied properties may rent up to 90 days per year without a business license. Properties rented beyond that threshold require a full STR business license, compliance with fire and safety inspections, and payment of the county’s 13% room tax. Non-compliance results in fines starting at $500 per violation.
Review the complete operational picture before choosing the STR path. Our guide to Airbnb property management in Las Vegas and maximizing short-term rental profits for landlords cover the operational demands, seasonal revenue patterns, and break-even analysis in detail.
Nevada Tax Rules and Deductions That Maximize Net Rental Income
Rental income from unused spaces is taxable, but the tax code offers significant deductions that reduce net liability. Expenses directly attributable to the rental portion of your home, including a prorated share of mortgage interest, property taxes, utilities, insurance, and depreciation, are deductible against rental income on Schedule E of your federal return. IRS rules require allocating expenses between personal and rental use based on the percentage of the home used for rental purposes.
IRS Publication 527 establishes that residential landlords may depreciate the cost basis of rental structures over 27.5 years using the Modified Accelerated Cost Recovery System (MACRS). For a $20,000 garage conversion generating $13,800 in annual rent, the annual depreciation deduction ($727) reduces taxable income and improves after-tax cash flow by $160-$220 per year depending on the landlord’s marginal federal tax rate.
Nevada’s lack of state income tax amplifies the value of federal deductions. Landlords in California or Arizona pay state income tax on net rental income at 9-12%, while Nevada landlords retain that additional margin. For a property generating $1,200 per month in net rent, the difference in after-tax income between Nevada and California exceeds $1,200 per year.
The IRS 14-day rule (Section 280A) is relevant for homeowners renting spare rooms or the entire home for short periods. Renting your primary residence for 14 or fewer days per year generates income that does not need to be reported on your federal return. Above that threshold, the income is taxable, but proportional deductions apply. Track rental days carefully and consult a CPA familiar with Nevada rental properties before filing. Explore further in our second home primary residence tax benefits. Read more in our related guide: converting second home to rental property.
Carry adequate insurance before placing any tenant. A standard homeowner’s policy does not cover injuries to paying guests. Review Nevada landlord insurance options that include premises liability and loss-of-rental-income coverage. Also see property management fees in Las Vegas if you plan to hire a manager rather than self-managing the rental unit. Explore further in our homeowner tax documents.
How to Calculate Your Return Before Committing to a Conversion
Every space conversion decision should begin with a break-even calculation before any contractor is called. The core variables are monthly gross rent, monthly operating expenses, upfront conversion cost, and the resulting number of months to break even.
Break-even formula: Upfront cost / (Monthly rent - Monthly expenses) = Break-even months
Example for a garage studio:
- Upfront cost: $20,000
- Monthly rent: $1,150
- Monthly expenses (insurance, property tax allocation, maintenance reserve): $200
- Net monthly income: $950
- Break-even: $20,000 / $950 = 21 months
After break-even, rental income flows directly to your bottom line and builds cash flow that can fund additional investments. Tracking cap rate on each conversion project helps compare returns across investment options and determine whether additional conversions or purchasing a separate rental property makes more sense at current Las Vegas valuations.
Frequently Asked Questions
How much can I earn by renting an unused room in Las Vegas?
Las Vegas spare bedroom rentals average $875 per month in 2026, with furnished rooms in high-demand areas such as Summerlin and Henderson reaching $950-$1,100. Proximity to the Las Vegas Medical District, UNLV, or major employers increases demand and supports higher monthly rents.
Do I need a permit to rent a converted garage in Las Vegas?
Yes. Clark County requires a building permit for any garage conversion that changes occupancy classification from storage to residential or adds plumbing. The process includes plan review and multiple inspections. Renting an unpermitted converted garage exposes landlords to code enforcement fines and potential tenant liability claims.
What is the IRS 14-day rule for home rentals?
IRS Section 280A allows homeowners to rent their primary residence for up to 14 days per year without reporting that income on their federal return. Rental income from 15 or more days must be reported, but proportional deductions for mortgage interest, taxes, and depreciation apply. See IRS Publication 527 for full details.
How does Nevada’s lack of state income tax affect rental income?
Nevada has no state income tax, meaning rental income from unused spaces is subject only to federal taxation. Landlords in states with income tax pay an additional 5-12% on net rental income at the state level. This advantage improves the after-tax return on every Las Vegas rental conversion compared to equivalent investments in California, Arizona, or other income-tax states.
Is a short-term rental permit required in Las Vegas?
Yes. Clark County requires a short-term rental license for any property rented fewer than 31 consecutive days. Owner-occupied homes may rent up to 90 days annually without a full business license. Licenses beyond that threshold require fire and safety inspections and payment of the 13% county room tax. Violations carry fines starting at $500 per occurrence.
