Thinking about turning a garage or backyard into steady rental income in Los Feliz? You are not alone. With strong neighborhood demand for small homes and tight supply, a well‑planned ADU can boost your monthly cash flow and long‑term property value. In this guide, you will see realistic local rents, current build costs, example ROI math, the rules that impact income, and a simple action plan to move forward. Let’s dive in.
Rental trackers show strong demand for small units in and around 90027. Neighborhood studio rents often land in the high $1,000s and 1-bedrooms commonly in the low to mid $2,000s, based on recent Los Feliz and Greater Griffith Park readings from Zumper’s neighborhood tools. For broader context, Zillow’s tracker for ZIP 90027 has shown an average rent near the high $2,000s across all unit types in late 2025. Check current comps before you price your unit because rents move with seasonality and supply shifts. See ZIP 90027 trends on Zillow and recent Los Feliz neighborhood readings on Zumper.
ADU cost depends on type and site conditions. Common paths include garage conversions, JADUs or interior conversions, attached additions, detached backyard units, and prefab or modular installs. In Los Angeles, recent industry summaries place many garage or interior conversions roughly in the low to mid six figures, while detached backyard ADUs frequently land in the $200k to $400k+ range, with smaller units often carrying higher per-square-foot costs on a sloped or complex lot. See current Los Angeles ranges from ADUScale’s cost guide.
Plan for soft costs and site extras that owners often miss. Budget for design and engineering, plan check fees, possible 200‑amp panel upgrades, sewer work, drainage and retaining walls on hillside parcels, tree or survey work, landscaping, and time costs from delays. A realistic contingency can help you stay on track if surprises come up.
Gross rent is only the starting point. A conservative rule of thumb is to set aside about 30 to 35 percent of gross rent for ongoing operating expenses, which can include vacancy, management, insurance, routine maintenance, reserves for big-ticket items, owner‑paid utilities, and any property tax increases tied to a new assessment. In tighter markets, 5 to 8 percent vacancy is a common planning range. See a detailed breakdown of typical rental expenses from RentPure’s guide.
Adding an ADU often raises appraised value, which can benefit you at resale, but it can also increase property taxes. Industry analyses in Greater Los Angeles have reported meaningful value uplift, depending on size, finish level, and comps. Learn more about value impacts in Los Angeles from this overview.
These examples use mid‑range local rent and cost assumptions and a 35 percent expense ratio. Use your property’s true costs and current comps for precise modeling.
What it means: A clean, permitted conversion that leases well can produce a low double digit cash yield in a mid case. Real outcomes depend on your site, scope, and rent.
What it means: Detached units require more capital and typically have longer payback, though they can create strong long‑term value and flexibility.
Financing can change the picture. HELOCs, cash‑out refinances, or construction loans reduce cash outlay but add debt service. Model both cash and financed cases before you commit.
The City of Los Angeles accepts ADU plans through the ePlanLA portal. Expect feasibility review, design and Title 24 compliance, plan check, corrections, permits, inspections, and a final certificate of occupancy. Straightforward projects often run about 6 to 12 months from design to keys, with more time for hillside or complex sites. Learn how submittal works on ePlanLA.
State ADU law and local procedures allow ADUs in most single family and many multifamily zones, subject to standards such as setbacks and lot coverage. The City’s ADU resources are a helpful starting point. See the City’s ADU information hub here.
In Los Angeles, whether a unit is covered by the Rent Stabilization Ordinance can affect rent increases and certain operating choices. RSO coverage depends on property characteristics and timing. Before you set a rental strategy, confirm your property’s status with the Los Angeles Housing Department. Review LAHD guidance on owning a rent stabilized property here.
Short‑term rentals are tightly regulated in the City of Los Angeles. The home‑sharing program generally limits STRs to an owner’s primary residence, caps eligible days, and requires registration. Most newly built ADUs do not qualify. See the City rules summarized in Airbnb’s help center on home‑sharing. If your property is in unincorporated Los Angeles County, separate registration and tax rules apply. Details are on the County’s site for STR registration and transient occupancy taxes here.
If you keep costs in line and price the unit with current comps, an ADU in Los Feliz can create meaningful monthly income and long‑term value. Garage conversions often deliver the strongest near‑term cash returns, while detached units provide flexibility and potential resale upside. The keys are conservative budgeting, a clean permit path, and a realistic rent strategy.
Curious how an ADU would perform on your specific property in 90027 or nearby hills? Let’s build a local plan together, from rent comps to a simple ROI model and a go‑to‑market tenant strategy. Reach out to Mark Mintz to get started.