Fast, Reliable Garage Conversion ADU Across North Hollywood
A garage conversion ADU in North Hollywood typically runs $95,000-$165,000 all-in, from measured drawings through final inspection, with most detached single-car conversions falling between $110,000 and $140,000. We’re Ellery ADU Studio, and our Garage Conversion ADU team has designed, permitted, and built ADUs across the San Fernando Valley since 2015. Dispatch and scheduling are coordinated from our Los Angeles office, and our crews serve North Hollywood locally - we know the alley grids off Victory Boulevard, the TPA boundary around the NoHo Metro B Line station, and the difference between an LA plan check and an unincorporated County review. Call (424) 407-8266 to schedule your free estimate. Written price before any work starts, per Haven Standard Clause 1.
Why Ellery ADU Studio North Hollywood Is North Hollywood’s Preferred Garage Conversion ADU Company
We’ve completed garage conversion ADUs on Tiara Street, Hatteras Street, and the residential blocks between Magnolia and Burbank Boulevard - enough to know which alleys dead-end and which feed through to the next block. Our clients in North Hollywood receive the same documentation package as every Ellery project: a permit set produced in-house, a written scope locked at signing under Haven Standard Clause 5, and a photo record from every site visit showing what we found, not what we felt.
Our license number appears on every page of this site, and our crews are background-checked and uniformed. The 365-Day Done Right Promise applies to every North Hollywood project: if the finished ADU is not built to the permitted drawings, we make it right - in writing, before construction begins. A live person answers calls 24/7. If you already have a written estimate from another design-build studio or contractor, we offer a Free Second Opinion.
Our Garage Conversion ADU Services in North Hollywood
Detached Garage Conversion
This is the work we do most often in North Hollywood. The neighborhood’s 1940s-60s housing stock sits on 6,000-7,500 sq ft lots with detached single-car garages accessed from rear alleys - the ideal setup for a standalone ADU. Because most of North Hollywood sits inside the NoHo Metro B Line Transit Priority Area, a garage-to-ADU conversion within roughly half a mile of the station needs zero replacement parking under LA’s ADU ordinance. That’s a cost-saving exemption that vanishes once you cross into unincorporated Valley pockets or Burbank. We handle the TPA verification as part of our initial site survey, so the exemption is documented before plan check, not discovered during it.
Attached Garage Conversion
Attached garages in North Hollywood are less common than detached, but they appear in the pocket of duplexes and four-plexes near Lankershim Boulevard and in the small-lot subdivisions closer to the 170 freeway. These conversions require fire-separation assemblies between the ADU and the primary residence, and often trigger party-wall notice requirements with the abutting neighbor. Our permit set includes the rated assembly details and the notice documentation upfront, so LA plan check moves without the stalls that kill timelines.
Garage JADU
A Junior ADU inside an existing garage is limited to 500 square feet and must share bathroom or kitchen facilities with the primary residence - a tighter constraint than a full ADU, but a faster permit path and a lower cost entry. In North Hollywood, we see Garage JADUs work best for homeowners who want rental income without the full systems build-out, or for multigenerational families who need a separate sleeping area but not a full second kitchen. The TPA zero-replacement-parking exemption applies to JADUs too, which matters on these tight lots.
Garage Partition & Bathroom Add
Some North Hollywood garages are large enough to split - a storage bay retained, a studio ADU created, with a bathroom added where none existed. This is not a full conversion, but it still requires plumbing rough-in, electrical upgrade, and habitability compliance. We scope the partition as a structural element in the permit set, not an afterthought, and we price it as a line item before work starts. On a recent project near Camarillo Street, we partitioned a 24-foot-deep garage into a 12-foot storage bay and a 12-foot studio with wet bath, keeping the alley access for both.
Carport Conversion
Carport conversions in North Hollywood face a specific challenge: many post-war carports were built without footings to garage standards, and the slab is often thinner than 4 inches. Our site survey measures slab thickness, footing depth, and roof load path before we quote. If the structure needs to come down and rebuild to ADU standards, we say so in writing, with two price scenarios - retrofit versus replace - so you decide with numbers, not surprises.
What happens when you call
- 1
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 North Hollywood
Ellery specifies and coordinates prefab and modular systems within our single-contract model, including Abodu, Cover, and Tuff Shed structures where they fit the site constraints. For site-built conversions, we use James Hardie siding systems rated for the Valley’s thermal cycling. Every material specification appears in the permit set and in your written scope. We don’t substitute brands mid-project without a change order you sign - that’s Haven Standard Clause 5, and it’s how we keep the single-contract promise intact.
Common Garage Conversion ADU Problems We See in North Hollywood Homes
- Skipping the thermal envelope on a circa-1950 uninsulated stucco garage. The San Fernando Valley runs 10-15°F hotter than the LA coast, and North Hollywood regularly hits 100-108°F in summer. An uninsulated concrete-slab garage becomes essentially uninhabitable without continuous rigid foam, a capillary break, and a properly sized mini-split. We see competitors quote coastal-grade insulation specs that fail here.
- Assuming the NoHo TPA zero-replacement-parking exemption applies everywhere. The half-mile radius from the NoHo Metro B Line station is precise, and unincorporated pockets within the 91601 and 91606 ZIP codes fall outside LA’s ordinance entirely. We verify TPA status with a GIS pull before the quote, not after the deposit.
- Treating an alley-accessed conversion like a front-yard build. No separate address, no rear-facing egress, and no party-wall notice to the abutting neighbor stalls LA plan check and draws a complaint the first week of construction. Our permit set includes the alley-facing door detail and the neighbor notice as standard.
- Undersizing electrical for Valley cooling loads. A 30-amp subpanel might suffice for a coastal ADU with minimal HVAC. In North Hollywood, we specify 60-amp minimum for a detached garage ADU with a mini-split, electric water heater, and full kitchen - sized for the load, not the guess.
Pricing for Garage Conversion ADU in North Hollywood, CA
| Service | Typical Range in North Hollywood |
|---|---|
| Detached single-car garage conversion (full ADU) | $110,000 - $140,000 |
| Detached two-car garage conversion (full ADU) | $135,000 - $165,000 |
| Attached garage conversion | $95,000 - $130,000 |
| Garage JADU (500 sq ft max, shared facilities) | $75,000 - $95,000 |
| Garage partition & bathroom add | $45,000 - $70,000 |
| Carport conversion (site-built, including slab/footing) | $85,000 - $125,000 |
These ranges include design, permit set, LA Department of Building and Safety plan check fees, construction, and final inspection. What moves a project toward the top of the range: slab replacement, foundation upgrade, full electrical service upgrade to the main house, or sewer lateral work. What keeps it toward the bottom: sound existing slab, alley access that avoids front-yard modification, and TPA-verified zero replacement parking. Every project is quoted with a written price before any work begins - Haven Standard Clause 1. No “call for a quote.” The number you receive is the number on the contract. Call (424) 407-8266 for your free estimate.
We Also Serve Cities Near North Hollywood
Our crews work across the San Fernando Valley and adjacent communities. We regularly permit and build garage conversion ADUs in North Hollywood, Studio City, Van Nuys, Burbank, and Glendale. Each city has its own ADU ordinance nuances - Burbank requires separate design review, Glendale has historic overlay districts, Van Nuys spans both LA and unincorporated County jurisdiction - and our permit set is adjusted for each before submission.
Serving North Hollywood, CA - Our Local Coverage Area
We’re based in the North Hollywood 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 North Hollywood
Not if your property sits within the NoHo Metro B Line Transit Priority Area - roughly half a mile from the station - where LA’s ADU ordinance waives replacement parking entirely. Outside that radius, or in unincorporated County pockets, you may need to replace the parking, which can add $8,000-$15,000 for a new driveway or carport slab. We verify TPA status with a GIS pull as part of our free site survey. Call (424) 407-8266 to check your address.
North Hollywood’s post-war garages were built for cars, not people - no insulation, no dedicated electrical subpanel, no plumbing rough-in, and often no proper foundation for habitable load. LA’s habitability standards require all of these, plus a thermal envelope that can handle Valley summers hitting 100-108°F. The systems build-out is typically 40-50% of the total project cost. We itemize it in your written quote so you see where the money goes. Call (424) 407-8266 for a line-item estimate.
Yes, and this is one of North Hollywood’s structural advantages for garage conversions. The 1940s alley grid lets a converted garage ADU open directly onto the alley with its own address, satisfying LA’s separate-access requirement without modifying the front yard or primary structure. This speeds plan-check approval and keeps the project visually low-impact. Our permit set includes the alley-facing egress detail and separate address documentation as standard. Call (424) 407-8266 to see if your lot qualifies.
Tight lots increase staging complexity, not necessarily base construction cost. On alley-accessed sites, we stage materials inside a 20-foot alley easement and coordinate deliveries to avoid blocking neighbor access. On zero-lot-line properties, we may need crane or mini-excavator rental for foundation work where a standard backhoe won’t fit. These logistics are scoped and priced before signing - no day-of surprises. Call (424) 407-8266 for a site-specific quote.
For attached conversions or any work on a shared property line, LA requires party-wall notice to the abutting neighbor before plan check submission. For detached alley-accessed garages, we still recommend a heads-up conversation about construction timing and alley access - our crews keep work hours to 7 AM - 7 PM weekdays per LA noise ordinance, and we provide a project timeline in writing. The permit set includes all required neighbor notices; we draft them, you sign and deliver. Call (424) 407-8266 and we’ll walk you through the exact requirements for your lot.
Ready to Convert Your North Hollywood Garage? Get Your Written Estimate
We’ve designed, permitted, and built 900+ ADUs since 2015 - every one with a written price before work started and a documented photo record when work was complete. On an alley-accessed lot off the 11000 block of Tiara Street, a 1948 single-car stucco garage had sunk about 2 inches on its slab and the rear corner studs had dry-rotted from years of alley irrigation - we jacked and re-leveled the plate, sistered new studs, added a capillary break and continuous rigid foam, then ran a dedicated 60-amp subpanel and a mini-split with the condenser on the alley wall. Because the garage already opened to the rear alley, we pulled a separate address and exterior door without touching the front yard or the main house, which kept the plan check clean and the neighbors unaware. Our crew kept the work zone staged inside a 20-foot alley easement, and the whole systems build-out was scoped into the quote before the driveway was ever blocked.
That’s how we work on tight North Hollywood lots: clean staging, documented scope, neighbors left alone. Your project gets the same treatment. Call (424) 407-8266 to schedule your free estimate. Written price before any work starts. Haven Standard Clause 1.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving North Hollywood since 2015.
Garage Conversion ADU in Nearby Areas