Detached Garage Conversion in Burbank, CA

Detached Garage Conversion in Burbank, CA

Our Garage Conversion ADU services turn a freestanding structure at the back of your Burbank property into a permitted, rentable, or multi-generational ADU – without demolition, without a lengthy new-construction timeline, and at a fraction of what a ground-up build costs. Most detached conversions in Burbank come in between $120,000 and $210,000 all-in, drawings through final inspection, with a written price delivered before any work begins. If you have a freestanding garage with a workable footprint and you’re trying to decide whether conversion makes financial sense, call us at (747) 322-4648 – a live person picks up, every time.

Ellery ADU Studio has been doing this work since 2015, the year California’s ADU permitting rules shifted and detached garage conversions became a genuinely viable path for Burbank homeowners. Our Garage Conversion ADU in Burbank practice covers attached garages, tandem garages, and detached structures under one design-build model – one contract, one written price, one point of accountability from permit drawings through final walkthrough. Nadia Ellery leads every project with that same structure, and the documentation to prove it.

When You Need Detached Garage Conversion

• You have a rentable structure sitting idle. Burbank’s rental vacancy rate runs tight, particularly in the Magnolia Park and Rancho neighborhoods where alley-loaded lots make detached garages especially common. A permitted ADU in those areas can generate $1,800 to $2,600 per month in rent, depending on finished size and configuration.
• Your garage already sits near the rear setback. Burbank’s zoning code (Title 10) allows detached garage conversions to retain the existing footprint even when it does not meet current setback requirements – a grandfathering provision most homeowners don’t know exists until they’ve already paid an architect to redesign.
• You want to house family without building from scratch. Parents, adult children, or in-laws need separate living quarters but the budget or timeline for a new detached ADU isn’t viable. Converting an existing structure gets you to a finished, permitted unit faster – typically 9 to 14 months from signed contract to certificate of occupancy in Burbank’s current plan-check queue.
• The garage structure is sound but poorly used. If the slab is 4 inches or thicker, the walls are framed (not CMU block that would need significant reinforcement), and the roof line gives adequate interior height, the bones of most Burbank-area detached garages are closer to conversion-ready than homeowners expect. We assess all three in the initial site evaluation.
• You’ve received quotes that don’t include drawings or permit fees. General contractors sometimes quote a detached garage conversion as a construction-only number, then bill separately for design, engineering, and permit fees – which in Burbank can add $18,000 to $35,000 to a project. Our single-contract model locks drawings, permit set, and construction at one written price under Haven Standard Clause 1.
• You want to use prefabricated components to control cost or timeline. Detached garages with a clear rectangular footprint are strong candidates for panel or module integration. We specify and coordinate James Hardie cladding systems and, where the structure and site allow, modular interior packages from brands like Cover or Dvele – all within the same contract, no separate coordination required.

Our Detached Garage Conversion Process

1. Site Evaluation and Written Feasibility Assessment

   We visit the property, measure the existing structure, assess the slab, framing, roof pitch, and utility stub-out locations, and check the parcel against Burbank’s current ADU ordinance. You receive a written feasibility summary – not a verbal walkthrough – that states what the structure can support, what it will require, and what it will cost. That document is yours whether you hire us or not.

2. Schematic Design and Written Price

   Based on the feasibility findings, we develop a schematic floor plan and elevation set, then attach a written price to it before any design work advances. This is Haven Standard Clause 1 in practice: you see the number before you commit, not after you’ve already paid for drawings. For most Burbank detached garage conversions, the written price covers architectural drawings, structural engineering, Title 24 energy compliance, permit fees, and construction through final inspection.

3. Permit Set Production and Burbank Plan Check Submission

   Burbank Building and Safety requires a full permit set for any ADU conversion: architectural plans, structural calculations, site plan with setback dimensions, energy compliance documentation (CF1R/CF2R forms under Title 24), and a separate CalGreen checklist. We produce and submit the complete package. Burbank’s over-the-counter ADU plan check window has been inconsistent since late 2024; most conversion permit sets currently run 6 to 10 weeks in the formal queue. We track the submission and respond to correction letters without billing you for each round.

4. Utility and Infrastructure Coordination

   Detached garages and Carport Conversion structures in Burbank typically have a 100-amp sub-panel at most, no gas stub-out, and no sewer lateral of their own – they’ve historically shared the main house connection or relied on a single 20-amp circuit. Upgrading to a livable ADU means a dedicated electrical service, a water and sewer lateral (or a documented shared connection with recorded easement), and in most cases a separate gas line if the unit will have a range and water heater. We coordinate the utility upgrades with Burbank Water and Power and the relevant sewer authority as part of the project scope – no separate contracts, no finger-pointing between trades.

5. Construction, Inspections, and Documented Photo Record

   Construction on a detached garage conversion in Burbank follows a standard sequence: foundation repairs or upgrades if required, framing modifications, rough mechanical/electrical/plumbing, insulation, sheathing, exterior finish, interior finish, and final fixtures. Every site visit generates a documented photo record – you receive evidence of what was found and what was done at each phase, not a summary. Burbank Building and Safety conducts framing, rough MEP, insulation, and final inspections; we coordinate scheduling and are on-site for each.

6. Final Walkthrough, Certificate of Occupancy, and 365-Day Promise

   When Burbank issues the certificate of occupancy, we do a final walkthrough against the permitted drawings. If anything is not built to the permitted documents, it gets corrected – that’s the 365-Day Done Right Promise, in writing, before the project starts. After closeout, you have a fully permitted ADU with a recorded permit history, which matters significantly for insurance, rental, and eventual resale.

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Detached Garage Conversion Pricing in Burbank

If you’re wondering How Much Does Garage Conversion ADU Cost? (2026 Price Guide) - Burbank, CA, detached garage conversion ADUs in Burbank typically run between $120,000 and $210,000 all-in – drawings, permit fees, and construction included in that single written price. That range is wider than it looks because the variables on a detached conversion are substantial. Here’s how the line items break down:

The three biggest cost variables on a Burbank detached conversion are plumbing scope, slab condition, and electrical service. Garages in the Hillside and Bel Aire neighborhoods often sit on older post-tension slabs that require engineering review before any penetrations for plumbing. Garages in the flatter grid streets near Downtown Burbank and Magnolia Park more often have conventional slabs that take a standard core-drill for plumbing without additional engineering. We note the difference in the written feasibility assessment – it changes the number, and you see that before signing.

Burbank’s ADU permit fees have increased since the city updated its fee schedule in 2023. Plan check, building permit, school fees, and utility connection fees combined now typically land between $8,000 and $18,000 depending on finished square footage. That full amount is included in the written price we give you under Haven Standard Clause 1 – not estimated separately, not invoiced later.

If you have a written estimate from another contractor already in hand, we offer a free second opinion. Bring the scope sheet and the number; we’ll tell you what’s included, what’s missing, and where the number lands relative to current Burbank market rates.

FAQs – Detached Garage Conversion

How long does a detached garage conversion take in Burbank?

Most detached garage conversions in Burbank run 9 to 14 months from signed contract to certificate of occupancy. The permit plan-check phase currently accounts for 6 to 10 weeks of that timeline at Burbank Building and Safety, which has operated on a formal queue (not over-the-counter) for most ADU submissions since late 2024. Construction on a typical single-story detached conversion takes 4 to 6 months once the permit is issued. We track the permit submission and coordinate inspections as part of the contract – you won’t be chasing the building department on your own. Call (747) 322-4648 if you have a specific move-in target date; we’ll tell you whether the timeline is workable.

Do I lose my parking space if I convert my detached garage?

Under California state ADU law (Government Code 65852.2), you cannot be required to replace parking that is eliminated when an Attached Garage Conversion or detached garage is converted to an ADU – as long as the property is within half a mile of a public transit stop. Most of Burbank qualifies, given Metrolink and local bus coverage. Burbank’s own ADU ordinance aligns with state law on this point. That said, if your parcel is in a neighborhood with permit parking restrictions or if you’re converting a two-car garage to an ADU, the practical question of where residents and renters park is worth discussing before you finalize the floor plan. We cover this in the feasibility assessment.

Can Burbank require me to owner-occupy the property if I rent out the converted garage?

No. California Assembly Bill 3182, effective January 2021, prohibits cities from imposing owner-occupancy requirements on properties with ADUs. Burbank’s ordinance reflects that prohibition. You can rent the main house and the detached ADU, or live in one and rent the other, without a residency requirement attached to the permit. The permit itself has no owner-occupancy covenant recorded against the title. If a contractor or permit expediter has told you otherwise, that information is outdated. For a current reading of how Burbank’s ADU rules apply to your specific parcel, call (747) 322-4648.

What if my detached garage doesn’t have enough interior height for an ADU?

Burbank’s building code requires a minimum 7-foot ceiling height in habitable rooms. Many older detached garages in Burbank – particularly the single-car structures behind bungalows in the Rancho and Magnolia Park areas – have finished ceiling heights of 8 to 9 feet at the plate but a roof structure that drops below 7 feet toward the eaves. In those cases, the habitable area is determined by how much of the floor plan clears the 7-foot threshold. There are two structural paths when the existing height falls short: raise the roof plate (which adds framing cost) or redesign the floor plan to concentrate the habitable rooms under the highest portion of the structure. We assess interior height at the initial site visit and show you both options with numbers attached before any drawings begin.

Key Takeaways

• Detached garage conversions in Burbank typically cost $120,000 to $210,000 all-in, with the written price delivered before any work starts – drawings, permit fees, and construction included.
• Burbank’s ADU ordinance allows detached garages to retain their existing footprint even when it doesn’t meet current setbacks – a significant advantage over new construction.
• The permit plan-check queue at Burbank Building and Safety currently runs 6 to 10 weeks; total project timelines run 9 to 14 months from signed contract to occupancy.
• Plumbing scope, slab condition, and electrical service are the three line items most likely to separate a lower-cost conversion from a higher-cost one – and the ones most often missing from contractor-only quotes.
• The 365-Day Done Right Promise means that if the finished ADU is not built to the permitted drawings, Ellery makes it right – backed in writing before the project starts.
• A free second opinion is available on any written estimate already in hand.

If you’re weighing a detached garage conversion in Burbank and want a written price – not a ballpark, not a range subject to change – call Ellery ADU Studio at (747) 322-4648. A live person answers. We’ll schedule a site visit, produce a written feasibility assessment, and give you the number before you commit to anything. That’s the entire point of how we work, and it’s governed by Haven Standard Clause 1 on every project we take.

You can also learn more about the full range of conversion options, including attached and tandem structures, on our Garage Conversion ADU in Burbank page, or visit our home page to see everything Ellery ADU Studio covers under one contract.

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