ADU Permits, Costs & Rental Income Explained – Burbank Edition

Accessory Dwelling Units (ADUs) are gaining popularity throughout California, and Burbank is no exception. In this article, we’ll walk you through the permitting process, construction challenges, total costs, and potential rental income — all based on a real ADU project recently completed in Burbank. Whether you’re a homeowner considering a garage conversion or a developer interested in rental returns, this case study offers practical insights into what to expect.

Permitting Process: What It Takes to Get ADU Approval in Burbank

One of the most important steps when building an ADU in California is obtaining the necessary building permits. In Burbank, just like in many other California cities, ADU permits go through the local Planning and Building Departments. In this case, once the plans were approved, the construction timeline officially started.

How long does the ADU permit approval take? On average, the design and permitting phase can take between 2 to 4 months, depending on the complexity of the project and responsiveness of the city. For this 620 sq ft, 2-bed/2-bath ADU, the project team began construction immediately after permit approval and completed the build in approximately six months.

If you’re wondering “How much do ADU permits cost in California?” — the answer depends on the city, but in Burbank, expect to pay anywhere from $3,000 to $8,000 for permit fees, depending on the size and type of ADU.

Wondering how much your ADU will cost in California? Use our free California ADU Cost Calculator to get an instant estimate based on your ZIP code, lot conditions, and unit size — a smart first step before starting your design or construction.

Construction Timeline & Surprises

Even with well-prepared, permit-ready ADU plans, unexpected issues can arise. During demolition, the construction team discovered that the existing garage footing was insufficient and required deeper foundations. This led to an unplanned $15,000 expense — a common example of why having a contingency budget is critical when planning an ADU.

Another important construction consideration was utilities. In this project, the team opted for an all-electric setup instead of using natural gas. Why? Because the wait time to get a gas meter from SoCal Gas was estimated at 4–6 months. All-electric ADUs not only streamline the construction process but also future-proof the unit in line with California’s push toward electrification and energy efficiency.

Rental Income Potential in Burbank

So how much can a 2-bedroom, 2-bath ADU rent for in Burbank? Based on current rental market data, the project owners expect a monthly rental rate between $2,900 to $3,200, depending on amenities and finishes.

With construction costs estimated around $220,000–$240,000 (including permits, labor, materials, and upgrades), the projected return on investment (ROI) is roughly 6 years. This is considered a strong ROI for a residential rental unit, especially given California’s long-term demand for housing and the relatively low risk of vacancy in desirable neighborhoods like Burbank.

Expert Tip: When to Contact a Builder

Homeowners often wonder: Should I talk to a contractor before or after getting ADU plans approved? The best practice is to start with a design studio like Ataman Studio to prepare a complete, code-compliant ADU floor plan. Once your plans are approved by the city, you can request quotes from general contractors — this ensures accuracy and prevents unexpected cost overruns.

Final Thoughts: Is Building an ADU in Burbank Worth It?

Yes — if you’re strategic about permitting, budget, and design. This real-world ADU example demonstrates that a properly planned project can be completed in about 6 months, generate substantial rental income, and significantly boost your property value.

Working with professionals experienced in California ADU regulations — from architecture to construction — is key to ensuring your project runs smoothly.