Fast, Reliable Garage Conversion ADU Across Van Nuys
A garage conversion ADU in Van Nuys typically runs $85,000-$165,000 all-in, from measured drawings through final LA City inspection. Most detached garage conversions here finish in 4-6 months, attached conversions in 5-7 months, depending on what the walls reveal once we open them. Call (424) 407-8266 to schedule your free estimate - every project receives a written price before any work starts, per Haven Standard Clause 1.
We’ve worked the post-WWII stucco tracts from Lake Balboa to the Van Nuys Airport corridor, and the pattern is consistent: 1950s-1960s homes on 6,500-9,000 sq ft flat lots with detached two-car garages set at the rear, many accessed by alleys. These garages were built for cars, not people. When we convert them, we find what decades of Valley heat, informal handyman work, and deferred maintenance have left behind. Our crews serve Van Nuys from our Los Angeles office, with dispatch and scheduling coordinated locally.
Why Ellery ADU Studio North Hollywood Is Van Nuys’s Preferred Garage Conversion ADU Company
Our reputation in Van Nuys rests on documentation, not claims. We’ve designed, permitted, and built over 900 ADUs since 2015 - every one with a written price before work started and a documented photo record when complete. Van Nuys homeowners receive the same permit-set rigor we apply across LA City: drawings engineered to LA City ADU ordinance standards, including access to pre-approved standard plan programs where applicable.
Reviews from Van Nuys customers consistently cite two things: the photo record we deliver after every site visit, and the absence of change orders once work begins. Under Haven Standard Clause 5 (No Surprises), the scope is locked at signing. No door-side upsells, no scope creep.
Response time to Van Nuys is same-week for initial site visits. A live person answers calls 24/7 - no voicemail queue, no callback promise that doesn’t materialize.
Local knowledge matters here because Van Nuys is not Burbank. You pull LA City permits, not a separate municipal set. You deal with LA City Planning and LADBS, not a smaller incorporated city hall. We know which plan checkers flag garage ADU electrical load calculations, which inspectors want to see hot-mop flood tests on converted garage bathrooms, and how to sequence a 100-amp feeder upgrade so your alley-side panel passes before drywall closes.
Our Garage Conversion ADU Services in Van Nuys
Detached Garage Conversion
This is the Van Nuys sweet spot. The neighborhood’s rear alleys let us design detached garage ADUs with fully independent entrances off the alley - no shared driveway, no privacy conflict with the main house. A typical detached garage conversion in Van Nuys runs $95,000-$165,000 all-in. We frequently encounter informal conversions from the 1980s: cloth-wrapped wiring, non-bearing headers cut into roof framing, slab showers with no pre-slope. Our process stops work, documents with photos, prices against contract allowances, and gets your signed approval before anyone touches the panel again.
Attached Garage Conversion
Attached conversions in Van Nuys face a different challenge: fire separation. LA City requires a one-hour fire-rated assembly between the ADU and the main house, which often means replacing the existing garage-to-house door with a rated wall assembly. The 1950s-1960s stucco tract construction here typically has a single layer of 5/8″ drywall on the house side - rarely enough. We price the fire upgrade in the initial written scope, not after demo. Attached garage conversions in Van Nuys typically run $85,000-$140,000.
Garage JADU
A Junior ADU - under 500 sq ft, inside the existing footprint, with owner-occupancy required on site - fits many Van Nuys homeowners who want rental income without the full ADU investment. The existing garage structure stays, but we add a kitchenette, bathroom, and separate entrance. At $65,000-$95,000, it’s the lower-cost entry point, though the same hidden-condition risks apply: old wiring, failed waterproofing, cut framing. We inspect first, price allowances into the contract, and document everything.
Garage Partition & Bathroom Add
Some Van Nuys garages are oversized for a single ADU - 24×24 or larger on those generous Valley lots. We partition into a studio plus storage, or add a full bathroom to a space that previously had none. The bathroom addition triggers the most common surprise: 1950s-60s slab-on-grade with no waterproofing membrane. Once tile is up, we find moisture intrusion. Our contracts include a waterproofing allowance for exactly this scenario, priced and approved in writing before the hot-mop goes down.
Carport Conversion
Van Nuys carport conversions are less common than garage work but follow the same pattern: open structure, new enclosure, full utility package. The advantage is starting from a clean permit history - no decades of informal electrical to untangle. Typical range: $75,000-$125,000.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
- 2
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 Van Nuys
Our Garage Conversion ADU team specifies and coordinates prefab and modular systems from Abodu, Cover, and Tuff Shed within the same single-contract design-build model. For site-built conversions, we source James Hardie fiber-cement siding - critical in Van Nuys’s 105-112°F summer heat, where vinyl softens and wood warps. Every material selection is documented in the permit set, not swapped at the supplier’s convenience. Van Nuys clients receive the same brand fluency we apply across LA City: systems specified, ordered, and warrantied through one contract, one written price, one point of accountability.
Common Garage Conversion ADU Problems We See in Van Nuys Homes
- Unpermitted electrical from 1980s informal conversions. We regularly find cloth-wrapped Romex feeding 30-amp subpanels, sometimes buried in walls without conduit. LA City will not close an ADU permit on this. We price the electrical upgrade allowance before demo, then execute with a licensed electrician and pull inspection on the new 100-amp feeder.
- Failed or missing waterproofing in slab-on-grade garage bathrooms. The 1950s-60s construction here predates modern membrane standards. Once we open the floor, we find moisture intrusion at the slab perimeter. Our contracts include a waterproofing allowance for hot-mop pre-slope installation - priced, approved in writing, then executed to pass LADBS flood test.
- Non-bearing headers cut into roof framing. Previous owners widened garage door openings or added windows without engineering. We stop work, document with photos, engineer a proper header solution, and price it against the structural allowance before continuing.
- Title 24 energy compliance gaps from Valley heat. Van Nuys’s interior Valley location adds 15-20°F to summer design temperatures versus the LA westside. A garage ADU here needs enhanced insulation, cool-roof assembly, and right-sized HVAC to pass energy calcs - costs that don’t appear on westside builds the same way. We model this in the permit set, not discover it at final inspection.
Pricing for Garage Conversion ADU in Van Nuys, CA
| Service | Typical Range (all-in, drawings through final inspection) |
|---|---|
| Garage JADU (under 500 sq ft) | $65,000-$95,000 |
| Attached Garage Conversion | $85,000-$140,000 |
| Carport Conversion | $75,000-$125,000 |
| Detached Garage Conversion | $95,000-$165,000 |
| Garage Partition & Bathroom Add | $90,000-$155,000 |
What moves the number: condition of existing electrical and plumbing, need for 100-amp service upgrade, structural repairs to cut framing, waterproofing tear-out and rebuild, and Title 24 energy package required for Valley climate zone. Every project is quoted with a written price before any work begins - Haven Standard Clause 1. No “call for a quote.” The price is on the page, then refined to your specific garage after our inspection. We also offer a Free Second Opinion on any written estimate already in hand.
On a 1957 stucco tract house off Noble Avenue, our crew opened a detached two-car garage that had been informally converted in the 1980s - we found cloth-wrapped wiring feeding a 30-amp subpanel, a slab-on-grade shower with no pre-slope, and a non-bearing header cut into the roof framing. We stopped work, wrote a formal inspection report with photos, priced the upgrade package against the contract’s electrical, framing, and waterproofing allowances, and got the owner’s signed approval before anyone touched the panel again - then rebuilt the header, pulled a 100-amp feeder to the alley-side panel, and set the bathroom to hot-mop with a proper pre-slope so it could pass LA City inspection and close the ADU permit.
We Also Serve Cities Near Van Nuys
Our crews work across the San Fernando Valley and adjacent neighborhoods, including Garage Conversion ADU in Van Nuys and surrounding areas: Sherman Oaks, Studio City, North Hollywood, and Tarzana. Each city carries its own permit jurisdiction, housing stock, and hidden-condition patterns - we price and permit accordingly.
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
Yes, but everything must be brought to current LA City code before the ADU permit closes. The informal electrical, plumbing, and framing we find in 1980s Van Nuys conversions is the rule, not the exception. We inspect first, document with photos, and price the code-upgrade package against your contract allowances before work proceeds. Call (424) 407-8266 for an exact quote - estimates are free.
Three factors: heat, age, and what’s already inside. Van Nuys’s 105-112°F summer design temperatures trigger stricter Title 24 energy compliance - enhanced insulation, cool-roof assembly, larger HVAC. The 1950s-1960s housing stock means more decades of informal wiring and failed waterproofing to correct. And the prevalence of 1980s unpermitted conversions means we budget for surprises that westside garages, often newer and less tampered with, simply don’t present. Call (424) 407-8266 for an exact quote - estimates are free.
No, but it can have one, and that’s a significant advantage here. LA City allows separate mailing addresses for ADUs with independent entrances. In Van Nuys, where rear alleys serve a large share of detached garages, we design alley-facing entrances that qualify for separate addresses - no shared driveway conflict, clear tenant access. This is far less available in alley-scarce neighborhoods like Sherman Oaks or Studio City. The address assignment is handled during permit, not construction. Call (424) 407-8266 for an exact quote - estimates are free.
We stop work, document with photos, write a formal inspection report, and price the repair against the contract’s pre-established allowances - electrical, structural, waterproofing - before anyone proceeds. Haven Standard Clause 5 (No Surprises) requires your signed approval on any additional scope. No door-side upsells, no verbal “while we’re in there” additions. The photo record goes to you; the pricing goes to you; your signature unlocks the next phase. Call (424) 407-8266 for an exact quote - estimates are free.
Yes, if the unit is under 750 sq ft and meets the standard plan’s dimensional and setback requirements. Van Nuys homeowners benefit from LA City’s highly permissive ADU ordinance - including pre-approved standard plans that shave weeks off plan check and waived impact fees that save thousands - because Van Nuys sits within City of Los Angeles jurisdiction, not an independent municipality. We verify standard-plan eligibility during our initial site measurement and include the permit strategy in your written scope. Call (424) 407-8266 for an exact quote - estimates are free.
Ready to convert your Van Nuys garage into a permitted, income-producing ADU? Call (424) 407-8266 to schedule your free estimate. Nadia Ellery and our team will inspect your garage, document existing conditions with photos, and deliver a written, line-item price before any work begins - backed by the 365-Day Done Right Promise and Haven Standard Clause 1.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Van Nuys since 2015.