Fast, Reliable Garage Conversion ADU Across Glendale
Most garage conversion ADUs in Glendale run between $185,000 and $265,000 all-in, from the first site visit through final inspection, depending on whether you’re converting an attached single-car garage in the flatlands or a detached structure on a Verdugo foothills lot. We’re Ellery ADU Studio, and we’ve designed, permitted, and built garage conversions across Glendale since 2015. Every project gets a written price before any work starts, and every visit comes with a documented photo record of what we found. Call (971) 497-2402 to schedule a free estimate.
Why Ellery ADU Studio Is Glendale’s Preferred Garage Conversion ADU Company
Glendale garages hide things. We know that because we’ve opened enough of them. On 1920s Craftsman bungalows below Colorado Boulevard and mid-century homes in Mariposa, the same patterns show up: cloth-wrapped aluminum wiring, sill plates gone soft from sprinkler overspray, slabs poured without rebar or vapor barrier. Our team has worked these blocks long enough to price the real scope upfront rather than discovering it mid-project and handing you a change order that breaks the budget.
We operate as a single design-build contract, not a designer who hands off to a builder. That means the permit set, the construction, and the final inspection all sit under one written price. Our sister team handles Garage Conversion ADU projects across Southern California, and we bring the same documented process to every Glendale job: a pre-conversion inspection, a written scope with allowances for what we might find, and a 365-Day Done Right Promise in writing before the first stud gets cut.
Nadia Ellery founded this studio in 2015, the year California’s ADU permitting landscape shifted, and she built the company around a simple idea: the permit set is the product. Every Glendale project gets a full drawing package, a documented photo record of the work, and a written warranty. When a homeowner in Adams Hill asked us why our price was higher than a flat-area contractor’s, we showed her the Chapter 7A line items the other bid had left out entirely. That’s the difference.
Our Garage Conversion ADU Services in Glendale
Attached Garage Conversion
Attached conversions in Glendale’s flatlands, from Adams Hill to Kenilworth, typically run $165,000 to $215,000. Most of these garages were built for a single 1950s sedan, so the electrical service feeding them rarely supports a kitchen and mini-split. We plan for a subpanel upgrade from the start and write it into the base price, not a change order.
Detached Garage Conversion
Detached structures on Glendale’s 5,000 to 7,000 square foot lots give you more privacy and often more square footage to work with. Expect $210,000 to $285,000 in most flatland neighborhoods. If your lot fronts a rear alley, you may be able to give the unit its own alley-facing entrance and separate address, which changes the rental math considerably. We’ll tell you whether that’s possible before you spend a dollar on drawings.
Carport Conversion
Carport conversions in Glendale run $140,000 to $190,000 and move faster because there’s less demolition. The catch is structural: a carport roof was never meant to hold insulation, drywall, and a ceiling assembly. We specify the framing upgrades the permit requires and price them in writing before work begins.
Garage Partition & Bathroom Add
For Glendale homeowners housing parents or grandparents, a full conversion isn’t always the right move. A partition with a bathroom add keeps your parking and creates a self-contained suite at $95,000 to $140,000, depending on plumbing rough-in distances. We’ve done enough of these in multigenerational Glendale homes to know the plumbing stack location dictates half the cost.
Garage JADU
A Junior ADU carved from an existing garage footprint is the most economical path for attached structures, typically $85,000 to $125,000 in Glendale. JADUs share utilities with the main house, which keeps the electrical scope smaller, but the trade-off is a 500 square foot cap and efficiency kitchen requirements. Glendale’s building department processes JADU permits faster than full conversions right now, and we’ll tell you honestly whether a JADU or a full conversion makes more sense for your lot.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Glendale
We specify and coordinate prefab and modular systems from James Hardie, Abodu, and Cover within the same single contract. For Glendale hillside projects, James Hardie fiber-cement panels are a common Chapter 7A-compliant cladding choice, and we’ve used their shear-rated panels on alley-facing walls where wind bracing and ignition resistance both come into play. When a Glendale project calls for a faster shell, we coordinate Abodu or Cover panels, but the foundation, utilities, permit set, and finish work all stay under our written price.
Common Garage Conversion ADU Problems We See in Glendale Homes
- Cloth-wrapped aluminum wiring. 1920s to 1950s flatland garages across Adams Hill, Kenilworth, and Mariposa commonly hide cloth-wrapped aluminum or knob-and-tube wiring that fails load calculations the moment the permit reviewer sees “kitchen” and “mini-split” on the plan. A panel upgrade and re-feed get added to the scope, and on these blocks we expect it and price for it.
- Rotted sill plates from sprinkler overspray. Decades of Glendale lawn irrigation aimed at a garage wall softens the bottom plate and rim joist. The fix is sistering with pressure-treated lumber and a new shear connection, which costs $4,000 to $9,000 depending on the run length, and it’s better to know that before demo than after.
- Slabs without rebar or vapor barrier. Glendale garages poured for a single 1950s car rarely have reinforcement or a moisture barrier. Once you add living space, the code requires an overlay with 10-mil poly, and that’s a line item on hillside lots where the existing grade already fights you.
- Chapter 7A requirements on hillside lots. Upper Glendale and the Verdugo foothills fall inside CalFire’s Very High Fire Hazard Severity Zone. That means Class A roofing, ember-resistant vents, and ignition-resistant cladding. Bids that skip these details come back with redesign costs after the fire review, and we see the same omissions on bids from flat-area contractors who don’t work these hills often.
Pricing for Garage Conversion ADU in Glendale, CA
Here are honest ranges for the Glendale market, based on what we’ve permitted and built since 2015:
- Attached garage conversion, flatlands: $165,000 - $215,000
- Detached garage conversion, flatlands: $210,000 - $285,000
- Garage JADU: $85,000 - $125,000
- Garage partition with bathroom add: $95,000 - $140,000
- Carport conversion: $140,000 - $190,000
What moves the number in Glendale: hillside grading and retaining walls in the Verdugo foothills, the distance from your existing panel to the new unit’s electrical room, whether your alley-facing lot allows separate metering, and what we find inside your walls during the pre-conversion inspection. Every Glendale project gets a written price before work starts, under Haven Standard Clause 1. Call (971) 497-2402 for a free estimate with line-item detail.
We Also Serve Cities Near Glendale
Our crews serve Garage Conversion ADU in Glendale and the surrounding cities: Burbank, Universal City, North Hollywood, and Tujunga. The permitting process, plan check timelines, and fire zone requirements differ by jurisdiction, and we’ve navigated all of them. If you’re in one of these cities, the same written-price guarantee and documented photo record apply.
Serving Glendale, CA - Our Local Coverage Area
We’re based in the Glendale area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Garage Conversion ADU in Glendale
Most 1930s garages in Adams Hill, Kenilworth, and Mariposa have cloth-wrapped aluminum or knob-and-tube wiring that won’t pass load calculations for a kitchen and mini-split. You’re looking at a panel upgrade and re-feed, typically $6,000 to $12,000 depending on the run from your main panel. Our pre-conversion inspection checks for this and prices it in writing before we open any walls. Call (971) 497-2402 to schedule yours.
Yes. If your lot falls inside CalFire’s Very High Fire Hazard Severity Zone, your ADU must meet Chapter 7A standards: Class A roofing, ember-resistant vents, and ignition-resistant exterior cladding. Homes above Mountain Street and along the Verdugo foothills commonly trigger this requirement. We include these line items in our Glendale hillside bids from the start, so the fire review doesn’t send your plan back for redesign.
Yes, on many of Glendale’s mid-century flatland blocks with rear alleys, including parts of Adams Hill and Kenilworth. A detached ADU can be permitted with its own alley-facing entrance and separate address, which improves rental privacy and marketability. Whether your specific lot qualifies depends on setback distance and alley width, and we’ll confirm that during the feasibility review before you commit to drawings.
We price known unknowns before work starts. Under Haven Standard Clause 5, we write allowances for rot, wiring, and slab conditions into the contract, and any discovery gets a written change order with line-item pricing for your approval before we touch a stud. On Lomita Avenue in Adams Hill, we opened a 1938 Spanish Colonial garage and found cloth-wrapped wiring and a rotted sill plate. The owners approved the scope in writing before we cut anything, and the final price matched the approved change order to the dollar.
Yes, and it’s the most common request we hear in Glendale, where multigenerational living is the norm across the Armenian-American community. A garage JADU or a partition with a bathroom add creates a private suite without enlarging the home’s footprint, and it avoids the two-kitchen stigma that some homeowners worry about with a full second kitchen. For families who want a true in-law suite with its own entrance and cooking space, a detached conversion on an alley lot is the strongest long-term option. We’ll walk you through the layout options and the written price for each before you decide. Call (971) 497-2402 for a free estimate.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Glendale since 2015.