Fast, Reliable Garage Conversion ADU Across Van Nuys
Garage conversion ADU in Van Nuys typically runs $85,000-$165,000 all-in, drawings through final inspection, with most detached two-car garage projects falling in the $110,000-$140,000 range. We’re Ellery ADU Studio, and our Garage Conversion ADU team serves Van Nuys from our Los Angeles office, with crews who know the eastern San Fernando Valley floor from Victory Boulevard to the Orange Line. If you’re sitting on a 1950s ranch with a detached garage off the alley, you’re looking at the most common ADU type we build. Call (747) 294-4817 to schedule your free estimate.
Why Ellery ADU Studio Santa Clarita Is Van Nuys’s Preferred Garage Conversion ADU Company
We’ve designed, permitted, and built over 900 ADUs since 2015, the year California’s ADU laws shifted, and a significant share of those have been garage conversions in Van Nuys and the surrounding Valley. Van Nuys homeowners find us because they’ve already read the three-star reviews elsewhere and want a design-build studio that puts the permit set first, not last.
Our crews know what opening a Van Nuys garage actually reveals: the 100-amp panels, the galvanized lines, the soft framing where decades of Valley heat and occasional water intrusion have done their work. We don’t guess. We inspect, photograph, and write every finding into the scope before we cut a wall.
Dispatch and scheduling are coordinated from our Los Angeles office, and we serve Van Nuys with background-checked, uniformed crews whose license number appears on every contract. A live person answers our phones 24/7. No voicemail queue. No callback that doesn’t materialize.
Nadia Ellery leads this studio, and every project is governed by The Haven Standard: a written price before work starts, a documented photo record on every visit, and a 365-Day Done Right Promise backed in writing.
Our Garage Conversion ADU Services in Van Nuys
Detached Garage Conversion
The detached two-car garage set at the rear of a Van Nuys lot, often accessed from a back alley off Van Nuys Boulevard or Sherman Way, is the single most common project we see. These structures were built for storage, not habitation, which means the slab is usually uninsulated, the roof is often flat or low-slope with aged waterproofing, and the framing was never designed for the loads a finished ADU requires. We evaluate the existing structure against LA’s Standard Plan Program requirements, price the necessary upgrades as line items, and deliver a single contract covering design, permitting, and construction.
Attached Garage Conversion
Attached garages in the Lake Balboa or Van Nuys proper areas share a wall with the main house, which simplifies utility ties but complicates fire separation and sound transmission. The shared wall must meet one-hour fire rating, and any bedroom in the ADU requires an egress window. We handle the permit set, the structural evaluation, and the tie-in to existing systems under one contract, so there’s no designer-versus-builder blame gap if the shared wall needs more work than expected.
Garage Partition & Bathroom Add
Some Van Nuys homeowners don’t need a full ADU but want a partitioned garage with a bathroom for an office, studio, or guest space. This is still a permitted conversion, and the bathroom triggers plumbing inspections that often expose galvanized supply lines or inadequate drain slope. We price the partition, the rough plumbing, and the finish as separate line items so you can phase the work if needed. Every allowance is written, not verbal.
Garage JADU
A Junior ADU, or JADU, is created within the existing walls of a garage, uses the main house’s bathroom or adds an efficiency kitchen, and requires owner occupancy of the primary residence. In Van Nuys, where lot sizes run 6,000-8,000 square feet and detached garages are common, a garage JADU can be the fastest path to rental income. The tradeoff is tighter space and stricter code requirements. We evaluate whether your garage meets JADU criteria before we draw a single line.
Carport Conversion
Carport conversions in Van Nuys are less common than garage work but follow a similar path: enclose the structure, insulate, add utilities, and bring the envelope up to current energy code. The lack of existing walls means more new construction, which can push costs toward the higher end of the range. We price these separately from garage conversions because the scope is fundamentally different.
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.
Trusted Brands We Service in Van Nuys
We specify and coordinate prefab and modular systems from Cover, Dvele, and Mighty Buildings within the same single contract that covers your design and permitting. For Van Nuys projects, this means we can integrate a modular unit into your garage conversion workflow or specify Mighty Buildings panels for the envelope upgrade, all priced upfront per Haven Standard Clause 1. We don’t hand you off to a separate modular dealer. The drawings, the permit set, and the coordination of these systems are our responsibility, start to finish.
Common Garage Conversion ADU Problems We See in Van Nuys Homes
- Undersized electrical panels trip permit holds. Original 100-amp or smaller panels are standard on 1950s-1970s Van Nuys ranches, and adding an ADU kitchen, bathroom, and mini-split typically requires a 200-amp service upgrade. We identify this during initial inspection, price it as a written line item, and schedule the utility coordination so it doesn’t stall your inspection sequence.
- Galvanized supply lines fail code. Those original galvanized water lines feeding a hose bibb in the garage? They’re a permit upgrade trigger. We find them, document with photos, and price copper or PEX replacement before the plumber starts rough-in. No surprise mid-project.
- Northridge-era retrofits hide in the framing. Because the 1994 earthquake epicenter was only a few miles away, Van Nuys garages often contain undocumented foundation bolts, post-and-pier additions, or soft-story repairs that aren’t in any city file. Tying new ADU framing into modified existing structure without evaluating these retrofits fails structural review. We open, photograph, and engineer around what we find.
- Heat-degraded roofs stall certificate of occupancy. Van Nuys summer highs regularly hit 105°F, and that thermal cycling destroys flat-roof membranes and shingle tabs on detached garages. The city won’t issue your C of O until the roof is sound. We inspect and price re-roofing or membrane replacement as a standard line item, not an afterthought.
Pricing for Garage Conversion ADU in Van Nuys, CA
Garage conversion ADUs in Van Nuys typically run $85,000-$165,000 all-in, with most detached two-car projects landing at $110,000-$140,000. Attached garage conversions often fall at the lower end, $85,000-$120,000, because utilities are closer and the foundation is shared. Carport conversions trend higher, $130,000-$165,000, due to the new construction required for walls.
| Project Type | Typical Range in Van Nuys |
|---|---|
| Detached garage conversion (2-car) | $110,000 - $140,000 |
| Attached garage conversion | $85,000 - $120,000 |
| Garage partition & bathroom add | $45,000 - $75,000 |
| Garage JADU | $75,000 - $110,000 |
| Carport conversion | $130,000 - $165,000 |
What moves the number: panel upgrades ($3,500-$7,500), re-roofing or membrane replacement ($4,000-$12,000), foundation work for detached structures ($5,000-$15,000), and mini-split HVAC ($3,500-$6,500). Every one of these is priced as a written line item before we start, per Haven Standard Clause 1. If we open walls and find something unexpected, we stop, photograph, price the change, and get your written approval before proceeding. No door-side upsells. No scope creep.
Call (747) 294-4817 for your free estimate. Bring a written estimate from another firm, and we’ll give you a Free Second Opinion.
We Also Serve Cities Near Van Nuys
Our crews work throughout the central and eastern Valley. We regularly build garage conversion ADUs in Van Nuys and the surrounding communities of Panorama City, Sun Valley, Mission Hills, and Reseda. The same single-contract design-build model, the same Haven Standard documentation, and the same written pricing apply in every city we serve.
Serving Van Nuys, CA - Our Local Coverage Area
We’re based in the Van Nuys 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 Van Nuys
Most do. Original panels on 1950s-1970s Van Nuys homes are 100 amps or smaller, and adding an ADU kitchen, bathroom, and dedicated mini-split circuit typically requires 200-amp service. We verify panel size and utility coordination during initial inspection and price the upgrade as a written line item before work starts. Call (747) 294-4817 for an exact quote - estimates are free.
Yes. Because Van Nuys falls under City of Los Angeles jurisdiction, we can permit through LA’s pre-approved Standard Plan Program, which skips architectural plan-check and pulls permits through the online portal in weeks rather than months. This workflow is completely unavailable two miles away in Burbank or Glendale. We evaluate whether your garage qualifies for Standard Plan during our initial site visit. Call (747) 294-4817 to check your property’s eligibility.
On a 1950s ranch near Van Nuys Blvd and Sherman Way, our crew opened a detached two-car garage for conversion and found a galvanized supply line feeding a hose bibb, a 100-amp panel at the house, and soft framing where the alley-side wall had taken water for years. We stopped, documented with photos, priced the re-frame, panel upgrade, and mini-split dedicated circuit as written change orders, and only then proceeded with the James Hardie envelope and Abodu-style plan set so the certificate of occupancy wouldn’t be held up. This is standard practice on every Van Nuys project we take. Call (747) 294-4817 to schedule your inspection.
Yes. Van Nuys Airport weather records show summer highs regularly topping 105°F, often 15-20°F above coastal LA. A dedicated mini-split system is a functional necessity for year-round habitability, not an upgrade. We size the unit to the ADU’s conditioned square footage and price it as a standard line item, including the dedicated electrical circuit. Call (747) 294-4817 for a load calculation and exact quote.
Only after you approve the change in writing. Under Haven Standard Clause 5 (No Surprises), the scope is locked at signing. If we find undocumented conditions - Northridge-era retrofits, hidden water damage, code upgrades triggered by inspection - we stop work, photograph the finding, price the solution, and get your written approval before proceeding. No work happens without a written price. No exceptions. Call (747) 294-4817 to review The Haven Standard before your project starts.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Van Nuys since 2015.