Attached Garage Conversion in Burbank, CA

Attached Garage Conversion in Burbank, CA

An attached garage conversion in Burbank typically costs $120,000-$210,000 all-in, drawings through final inspection, and produces a permitted ADU of 400-600 square feet that shares a wall with your main house. The project runs 6-9 months from signed contract to certificate of occupancy, and every Ellery ADU Studio project starts with a written price before a single drawing is produced – no “call for a quote,” no mid-project surprises.

If your home has an attached garage sitting underused and your lot in Burbank can’t accommodate a detached structure, this is often the cleanest path to a rentable, code-compliant ADU. Ellery ADU Studio has designed, permitted, and built over 900 ADUs across the San Fernando Valley since 2015. Nadia Ellery leads each project under a single design-build contract that covers architecture, permit drawings, and construction – so there’s no designer-versus-builder finger-pointing if something drifts off plan. To talk through your specific garage, call (747) 322-4648 – a live person picks up, no voicemail queue.

Our Garage Conversion ADU in Burbank service covers both attached and detached garages under the same one-contract model. This page focuses on the attached configuration – what makes it different, what it costs in Burbank’s market, and how the permit process works here specifically.

When You Need Attached Garage Conversion

• Your lot has less than five feet of rear setback clearance. Many Burbank parcels in Magnolia Park and the Rancho area run 5,000-6,500 square feet with tight rear yards. A detached ADU needs a minimum 4-foot side and rear setback under California state law, but Burbank’s local zoning overlays can add conditions that make an attached conversion the only buildable option on narrower lots.
• You want a direct interior connection between the ADU and the main house. Multigenerational households – a common use case we see in the Toluca Lake and Magnolia Park neighborhoods – often prefer a door between the main living space and the ADU. Burbank’s building department permits this with a proper fire-rated separation, and the conversion keeps it accessible without outdoor exposure.
• The garage slab is already in place and in good condition. A sound existing concrete slab eliminates one of the larger unknowns in new ADU construction. We inspect and document the slab as part of our pre-design assessment; if it’s 4 inches or more and free of major cracking, it typically stays in place and reduces your foundation line item by $8,000-$18,000 compared to a ground-up structure.
• You need the ADU permitted and rented within 12 months. Attached conversions move faster through Burbank’s plan check than new construction because the structure already exists. We’ve regularly seen Burbank plan check timelines of 8-14 weeks for a straightforward attached conversion, versus 14-22 weeks for a new detached build on the same lot.
• You’re in a hillside or sloped section of Burbank where a detached structure would require grading. Homes in the Verdugo Woodlands or along the Burbank foothills often face steep grading costs for any rear-yard structure. The attached garage is already level and connected to existing utilities, which sidesteps the grading entirely.
• You have a written quote from another contractor and want a second opinion. We offer a free written second opinion on any estimate already in hand. Bring the scope, and we’ll tell you what’s included, what’s missing, and what the Burbank permit set will actually require – line by line.

Our Attached Garage Conversion Process

1. Site Assessment and Written Scope

   We visit the garage, measure the existing structure, inspect the slab, document the electrical panel location, and photograph the utility connections. You receive a written assessment – not a verbal summary – of what we found: slab thickness, headroom, the distance to the main panel, and any condition that will affect the permit or the budget. This visit is documented with photos under the Haven Standard, and it’s what makes the written price that follows accurate rather than aspirational. Under Haven Standard Clause 1, a written price is in your hands before any design work begins.

2. Design and Permit Set

   Ellery’s in-house designers produce a full architectural plan set drawn to Burbank’s building code requirements – Title 24 energy compliance, CBC structural details, and the specific setback and fire-separation requirements that apply to attached ADUs in Burbank. The permit set is the core product, not a formality. We include floor plans, elevations, sections, and a complete electrical and mechanical plan so the Burbank Building and Safety Division has everything needed for first-round approval. Nadia Ellery reviews every permit package before submission. For exterior cladding, we frequently specify James Hardie fiber cement board on attached conversions in Burbank because it satisfies the city’s fire-resistance requirements and holds up against the dry summer heat and the occasional Santa Ana wind cycle that accelerates moisture damage on traditional wood siding.

3. Permit Submission and Plan Check Management

   We submit to Burbank Building and Safety and manage all plan check correspondence. Burbank uses an over-the-counter review process for qualifying ADUs, and we know which projects qualify and which need full-plan check routing. When the plan checker has corrections – and they almost always do on the first round – we respond within five business days. We track your permit number and give you a status update at each milestone, not just at the end.

4. Construction

   Once permits are issued, construction begins under the same contract signed before design. There is no second bid, no revised scope, no “the builder’s price is different from the designer’s price.” The crew is background-checked and uniformed; our license number appears on every document you receive. Construction on an attached conversion in Burbank typically runs 10-16 weeks depending on scope: framing the interior partition, insulating and drywalling to code, installing HVAC (a requirement for habitable space in Burbank’s climate), running new electrical circuits from the main panel, and completing kitchen and bathroom rough-ins and finish work.

5. Inspections and Certificate of Occupancy

   We schedule all Burbank inspections – framing, rough electrical, rough plumbing, energy, and final – and a crew member is on-site for each one. You receive a photo record from every inspection visit: what was inspected, the result, and what happens next. The project is complete when Burbank issues the certificate of occupancy and you have a legally rentable unit. If anything is found not built to the permitted drawings, the 365-Day Done Right Promise requires us to correct it in writing before you sign off.

6. Project Closeout and Documentation Package

   At closeout you receive the complete permit set, the city-stamped approved drawings, the inspection record, the photo documentation from construction, and the written 365-Day Done Right Promise. This is the paper trail that matters when you refinance, sell, or apply for a rental permit with the City of Burbank.

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Attached Garage Conversion Pricing in Burbank

Attached garage conversion ADUs in Burbank typically run $120,000-$210,000 for the full scope: design, permit drawings, permit fees, and construction. That range is wide because the variables are real – slab condition, panel capacity, existing roof framing, kitchen and bath finish level, and whether the garage has any existing plumbing roughed in. Here is how the major line items stack in Burbank’s current market.

Every project receives a written price covering all of the above before any work begins – this is Haven Standard Clause 1, not a marketing phrase. If you already have a written quote from another firm, call (747) 322-4648 and ask for a free second opinion. We’ll review their scope line by line and tell you what Burbank’s plan check will actually require.

What Moves the Price Up or Down

• Slab condition: A structurally sound existing slab in good shape is the single biggest cost reducer. We document this on the first visit.
• Panel capacity: Many Burbank homes built before 1980 have 100-amp panels that need upgrading to support a second habitable unit. Budget $4,000-$8,000 if this applies.
• Plumbing tie-in distance: The farther the garage is from the main sewer lateral, the more excavation. We flag this in the written scope before anything is signed.
• Finish level: Standard vinyl plank flooring, laminate counters, and mid-grade fixtures sit at the low end. Hardwood, quartz, and custom cabinetry push toward the top.
• Roof condition: If the garage roof needs repair or re-roofing as part of the conversion, that cost is included in the written scope – not discovered after demo starts.

FAQs – Attached Garage Conversion in Burbank

How long does an attached garage conversion take in Burbank, CA?

An attached garage conversion in Burbank takes approximately 6-9 months from signed contract to certificate of occupancy. Design and permit preparation runs 6-10 weeks; Burbank plan check typically takes 8-14 weeks for a qualifying attached conversion; and construction runs 10-16 weeks once permits are issued. Simpler scopes with existing plumbing and a sound slab land closer to the 6-month mark. For a project-specific timeline estimate, call (747) 322-4648 – we’ll give you a written milestone schedule before work starts.

Does Burbank allow an interior door between the attached ADU and the main house?

Yes, Burbank’s building code permits an interior connection between an attached ADU and the primary dwelling, provided the shared wall meets the required fire-resistance rating – typically a one-hour fire-separation assembly using Type X drywall on the ADU side. This is a standard detail in our permit sets for attached conversions and does not require a variance. Multigenerational households in neighborhoods like Magnolia Park and Toluca Lake frequently request this configuration, and we include the fire-separation specification in the structural drawings as a matter of course.

Will I lose my covered parking when I convert the garage?

Under California ADU law (Government Code Section 65852.2), Burbank cannot require replacement parking when you convert an attached garage to an ADU. You lose the covered parking space, but the city cannot deny the permit because of it or require you to build a carport to replace it. If you want to add a Carport Conversion or covered parking structure as a separate project, we can scope that as an add-on, but it is not a code requirement. We document this clearly in the permit set so there’s no ambiguity at plan check.

What permits does an attached garage conversion require in Burbank?

An attached garage conversion in Burbank requires a building permit covering structural, electrical, plumbing, and mechanical work. The permit set must include architectural plans, a Title 24 energy compliance report, and any required engineering calculations if the roof framing is being modified. Burbank also requires a separate certificate of occupancy for the ADU before it can be legally rented. Our permit set is prepared in-house to Burbank Building and Safety’s current submission requirements, and Nadia Ellery reviews it before we submit. The permit fees for a typical conversion run $4,500-$9,000 and are included in your written project price under Haven Standard Clause 1.

Is an attached garage conversion cheaper than building a detached ADU in Burbank?

Generally, yes. An attached garage conversion in Burbank runs $120,000-$210,000 all-in. A Detached Garage Conversion or new detached ADU on the same lot typically starts at $170,000 and can reach $320,000 or more depending on size and site conditions – because you’re building a foundation, exterior shell, and roof from scratch. The attached conversion reuses the existing structure, which reduces both cost and timeline. The trade-off is square footage: most Burbank attached garages convert to 400-600 square feet, while a new detached build can reach 1,200 square feet if zoning allows. To compare both options against your specific lot and budget, call (747) 322-4648 – we’ll put both scopes in writing so you can compare line by line.

Why Burbank Homeowners Work with Ellery ADU Studio

Burbank’s building department is efficient compared to many Los Angeles County cities, but it has specific requirements – EV-ready electrical on new habitable conversions, a fire-separation detail that trips up out-of-town permit services, and a plan check process that rewards complete first submissions. We’ve been submitting permit sets to Burbank Building and Safety since 2015, and that history is in the drawings, not just in a talking point.

The single-contract model matters here specifically. When the architect and the builder are separate companies, the gap between the permitted drawings and what actually gets built is where projects go wrong – and where homeowners get stuck holding the cost of corrections. Ellery’s design-build structure means the same team that drew the plans is accountable for building to them. The 365-Day Done Right Promise backs this in writing: if the finished ADU does not match the permitted drawings, we correct it before you sign off, at no additional cost to you.

If you’re starting from the beginning, visit our home page to see the full scope of what Ellery ADU Studio covers. If you already have a quote and want to verify it against what Burbank’s plan check will actually require, the free second opinion is a written comparison – not a phone call where someone promises to beat the number.

To get a written price on your attached garage conversion in Burbank, call (747) 322-4648. A live person picks up and can schedule a site visit. No voicemail, no callback queue – just the information you need to make a decision you can document.

Written by Nadia Ellery, Owner at Ellery ADU Studio Burbank, serving Burbank.