Fast, Reliable Garage Conversion ADU Across Glendale
A garage conversion ADU in Glendale typically runs $85,000-$175,000 all-in, from measured drawings through final inspection, with most projects finishing between four and seven months. We’re Ellery ADU Studio, a design-build practice that has handled more than 900 ADUs since 2015, and our crews serve Glendale directly from our Los Angeles office. If you’re considering converting a garage on a property near Glenoaks Boulevard, in the Verdugo Woodlands, or up in Chevy Chase Canyon, call (213) 329-7167. We’ll schedule a site visit, deliver a written price, and lock the scope before any work begins.
Why Ellery ADU Studio West Hollywood Is Glendale’s Preferred Garage Conversion ADU Company
Glendale operates its own Building & Safety department, entirely separate from LA City or LA County, with plan checkers who enforce setback rules strictly on the irregular, slope-carved lots common throughout the Verdugo Hills. Contractors who assume LA City precedents apply here routinely receive correction notices that delay garage conversions by weeks. We know the local reviewers by name, submit permit sets that match Glendale’s specific format requirements, and coordinate directly with the city’s inspectors to keep schedules intact.
Our Garage Conversion ADU team has worked extensively in the 91202, 91205, 91206, 91208, and 91214 zip codes, from the Craftsman bungalows south of Colorado Boulevard to the hillside Spanish Colonial Revival homes above Glenoaks Hills. Clients in Glendale receive the same documentation we provide on every project: a written price before work starts, per Haven Standard Clause 1; a documented photo record on every site visit; and our 365-Day Done Right Promise, backed in writing, that the finished ADU will match the permitted drawings or we make it right.
Response time to Glendale properties is typically next-day for initial site visits, with permit sets submitted within two weeks of contract signing. A live person answers our phones 24/7. We also offer a Free Second Opinion on any written estimate already in hand from another design-build practice or contractor.
Our Garage Conversion ADU Services in Glendale

Attached Garage Conversion
Attached garages in central and south Glendale are often original to 1920s-1940s homes, built as single-car structures with low ceiling heights and shared walls with the main house. Converting these requires careful fire-separation detailing between the ADU and the primary dwelling, plus structural verification that the existing foundation can handle the modified loads. In Glendale, we regularly see these projects designed as in-law suites with full second kitchens, not rental studios, reflecting the city’s multigenerational living norms. The permit set addresses Glendale’s specific energy code compliance path, which differs from LA City’s.

Detached Garage Conversion
Detached single-car garages are the most common project type we handle in Glendale, particularly on the 6,000-7,500 sq ft lots that dominate neighborhoods like the Verdugo Woodlands and Chevy Chase Canyon. These structures often sit at the rear of the lot, requiring utility trenching for water, sewer, and electrical extensions. On hillside lots in the Very High Fire Hazard Severity Zone, we specify Chapter 7A fire-resistant framing, glazing, and venting that flatland conversions never need. The defensible-space clearance requirements add a site-prep line item that we price in writing upfront, not as a surprise change order.

Carport Conversion
Carport conversions in Glendale face a specific challenge: many older carports on Verdugo Hills properties were built without footings adequate for enclosed walls, or they sit on slopes where setback rules tighten. We assess the existing slab depth, the bearing capacity of the soil, and the proximity to property lines before drawing the enclosure. If the carport is within the CalFire hazard zone, the new enclosed structure must meet the same Chapter 7A standards as a ground-up build. Our permit set includes the structural calculations and fire-resistance assemblies that Glendale’s plan checkers expect to see on the first submittal.

Garage Partition & Bathroom Add
Some Glendale homeowners want to retain vehicle storage while adding a habitable unit, which means partitioning the garage into a dual-use space or adding a bathroom and kitchenette to a portion of the footprint. These projects demand precise space planning, especially when the brief includes accessibility clearances for aging parents. We specify curbless showers, adequate turning radius for mobility devices, and kitchen layouts that support actual cooking, not just microwave reheating. The plumbing rough-in and venting must coordinate with Glendale’s sewer lateral requirements, which often trigger a pre-permit inspection on homes built before 1940.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Glendale
Ellery ADU Studio specifies and coordinates prefab and modular systems within the same single-contract framework that covers our conventional builds. For Glendale garage conversions, we regularly source Tuff Shed structures when a full replacement of a deteriorated detached garage makes more sense than retrofitting the existing shell. James Hardie fiber-cement siding is our default exterior finish on fire-zone projects, meeting Chapter 7A requirements without the maintenance burden of wood. When clients want a higher-design prefab route, we coordinate Abodu units as standalone replacements for garages that are too far gone to convert economically. All brand selections are locked and priced in writing before ordering, per Haven Standard Clause 1.
Common Garage Conversion ADU Problems We See in Glendale Homes

- LA City precedent assumptions. Glendale’s Building & Safety department enforces setbacks and lot-coverage rules differently than LA City, particularly on irregular Verdugo Hills lots. Designers who copy LA City templates receive correction notices that add weeks. We draw for Glendale’s reviewers specifically.
- Undersized electrical service. The 1920s-1940s housing stock throughout central Glendale typically has 100A main panels. The city will not sign off on an ADU permit until the home is upgraded to 200A and a sewer lateral inspection is cleared. We flag this in the first site visit and price the upgrade as a line item.
- Rental-studio layouts for in-law-suite needs. Because Glendale’s Armenian-American community overwhelmingly builds ADUs for multigenerational family living, a studio with a kitchenette and wet bar fails the brief. We design for full kitchen capacity, generational privacy, and accessibility from the first concept meeting.
- Fire-zone compliance gaps. Properties in the Very High Fire Hazard Severity Zone, including large portions of Chevy Chase Canyon and the Verdugo Hills, require Chapter 7A framing, glazing, and venting that contractors from flatland cities often omit. We specify these assemblies in the permit set and verify them at inspection.
Pricing for Garage Conversion ADU in Glendale, CA
Garage conversion ADUs in Glendale typically run $85,000-$175,000 all-in, with attached conversions at the lower end and detached hillside projects with utility extensions, panel upgrades, and Chapter 7A assemblies at the upper end. A straightforward detached single-car conversion on a flat lot in the 91205 or 91206 zip codes usually lands between $95,000 and $130,000. Add $8,000-$15,000 for a 200A panel upgrade, $4,000-$8,000 for sewer lateral work, and $12,000-$25,000 for Chapter 7A compliance and defensible-space clearance on hillside lots.
What drives the calendar on high-end Glendale work is not our labor pace but lead times: custom millwork, architectural glass, and specialty finishes often require eight to twelve weeks from order to delivery. We lock these prices in writing before ordering, per Haven Standard Clause 1, so the schedule tracks material delivery, not scope creep. Every project receives a written price before any work begins, a documented photo record on every visit, and the 365-Day Done Right Promise.
Call (213) 329-7167 for a free estimate. If you already have a written quote from another practice, we’ll provide a Free Second Opinion.
We Also Serve Cities Near Glendale

Our crews work throughout the immediate metro area, including Garage Conversion ADU in Glendale proper plus Burbank, North Hollywood, Studio City, and West Hollywood. Each city has its own permitting authority, code amendments, and inspection protocols; we submit permit sets tailored to each jurisdiction rather than recycling LA City templates.
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

Glendale’s independent Building & Safety department has plan checkers who strictly enforce setback and lot-coverage rules on irregular, slope-carved lots, particularly in the Verdugo Hills, and first-time submittals from out-of-city designers often receive correction notices that add two to four weeks. Additionally, properties in the Very High Fire Hazard Severity Zone require Chapter 7A fire-resistant assemblies and defensible-space clearance that flatland cities do not, adding both material lead times and inspection steps. The long-lead items that actually set the calendar are custom millwork, architectural glass, and specialty finishes, which we lock and price in writing before ordering so the schedule is predictable. Call (213) 329-7167 for a written timeline on your specific property.
Yes. If your property sits in CalFire’s Very High Fire Hazard Severity Zone, which includes large portions of Chevy Chase Canyon, the Verdugo Hills, and Glenoaks Hills, your garage conversion must meet Chapter 7A standards for fire-resistant framing, glazing, and venting, plus defensible-space clearance around the structure. These requirements add $12,000-$25,000 to typical project costs and extend the schedule by several weeks for material procurement and additional inspections. We specify these assemblies in the original permit set and verify compliance before calling for inspection, so corrections do not stall the project. Call (213) 329-7167 to confirm whether your lot is in the zone and what it means for your budget.
No. Glendale Building & Safety will not issue an ADU permit until the main house is upgraded to a 200A panel and a sewer lateral inspection is cleared, requirements that are nearly universal on 1920s-1940s homes in central and south Glendale. We identify the panel capacity and sewer condition during our first site visit and price both upgrades as written line items before work begins, per Haven Standard Clause 1. The panel upgrade typically runs $8,000-$15,000 and the sewer lateral work $4,000-$8,000. Call (213) 329-7167 and we’ll assess your existing service and lateral on the initial visit.
Glendale is sheltered on three sides by the Verdugo and San Gabriel mountain ranges, which trap heat and push summer temperatures among the highest in the LA basin; cooling loads here are significant enough that ductless mini-split systems are essentially the baseline specification, not an upsell. Window units are prohibited by California energy code for ADUs, and extending central ductwork from a 1920s house with an undersized blower is often impractical. We size mini-splits to the actual heat gain of the converted space, which on a south-facing garage in mid-Glendale can exceed 25 BTU per square foot. Call (213) 329-7167 and we’ll model the load for your specific structure.
Because Glendale has the largest Armenian-American population of any U.S. city and the community’s cultural norm favors permanent multigenerational family living over rental income, garage conversions here are overwhelmingly briefed as in-law suites for parents or adult children. This shifts the design priorities toward full kitchen capacity with standard appliances, accessibility features like curbless showers and adequate turning radius, and privacy separation from the main house, rather than the compact studio layouts common in rental-driven markets like Burbank. We ask about family composition and long-term use in the first meeting, then draw accordingly. Call (213) 329-7167 to discuss how your family’s needs shape the floor plan and budget.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Glendale since 2015.