New Detached ADU in North Hollywood - Design, Permits and Build Under One Contract

Fast, Reliable New Detached ADU Across North Hollywood

A new detached ADU in North Hollywood typically runs $220,000-$380,000 all-in, from the first site measurement through final inspection, depending on whether you build custom or specify a prefab system like Abodu or Cover. Most projects in North Hollywood move from signed contract to permit issuance in 8-14 weeks, with construction lasting 4-8 months for custom builds or 3-5 months for prefab installations. Call (747) 322-4648 to schedule your free estimate - every quote is written and fixed before any work begins, per Haven Standard Clause 1.

Call (747) 322-4648

We’ve designed, permitted, and built ADUs across North Hollywood since 2015, from the postwar ranches near Satsuma Street and the NoHo Metro station to the R2-zoned parcels south of Magnolia Boulevard. Our crews know what these lots actually contain: 60-amp garage subpanels, cloth-wrapped wiring, and alley-facing sill plates that have been soaking up Valley runoff for seventy years. That local knowledge changes your quote before it changes your project.

Why Ellery ADU Studio Burbank Is North Hollywood’s Preferred New Detached ADU Company

North Hollywood homeowners choose our New Detached ADU team because we’ve completed hundreds of ADU projects inside the City of Los Angeles, including dozens within walking distance of the NoHo Arts District. Our permit sets are built for LA Department of Building and Safety plan checkers, not generic templates that stall in review.

Clients in North Hollywood receive the same documentation on every visit: a dated photo record showing what we found, what we did, and what condition we left the site in. No summary emails. No “everything looks good” phone calls. Evidence, in writing, every time.

Dispatch and scheduling are coordinated from our Los Angeles office, with crews serving North Hollywood locally. Response time to North Hollywood inquiries is typically same-day during business hours, and a live person answers calls 24/7 - no voicemail queue, no callback promise that doesn’t materialize.

Our license number appears on every page of this site, on every contract, and on every permit application we file. Verified, not just claimed.

Our New Detached ADU Services in North Hollywood

Custom Built ADU

A custom built ADU in North Hollywood gives you full control over layout, materials, and finish level, which matters on lots where the Transit-Oriented Communities tier bonuses let you build larger than standard ADU limits. We handle the architectural drawings, structural engineering, Title 24 energy calculations, and permit set as a single deliverable under one contract. On a recent project off Bakman Avenue, we designed a 750-square-foot 1-bed ADU with a covered entry porch that maximized the TOC height bonus while keeping the rear yard open per LAMC requirements. Custom builds here typically range $280,000-$380,000 all-in.

Prefab ADU Installation

Prefab ADU installation in North Hollywood moves faster than custom construction because the module arrives 80-90% complete, but the site work - foundation, utility trenching, and that near-universal 200-amp panel upgrade - still demands local expertise. We specify and coordinate prefab systems from Abodu, Cover, and Dvele, integrating their factory-built modules with your existing electrical service and sewer lateral. A typical prefab ADU in North Hollywood runs $220,000-$320,000 including site prep, utility connections, and permit fees. The timeline advantage is real: permit to occupancy in 4-6 months versus 6-10 for stick-built.

Modular ADU

Modular ADU construction in North Hollywood uses factory-built sections that are craned into place and sealed on site, offering more layout flexibility than single-module prefab without the full exposure of stick-built framing to Valley weather. This matters during North Hollywood’s summer construction season, when 100°F+ days can delay concrete curing and exterior finish work. Modular systems from brands like Dvele arrive with integrated mechanical, electrical, and plumbing rough-ins, reducing the field connections that most often trigger inspector callbacks in LA.

Studio ADU

A studio ADU in North Hollywood is the most efficient way to add rental income or guest space on smaller postwar lots, especially where the existing detached garage sits close to the alley and setback limits constrain anything larger. Studio ADUs here typically measure 350-450 square feet and run $180,000-$260,000 for custom builds or $160,000-$240,000 for prefab installations. We design these units with dedicated mini-split zones and full kitchens - not kitchenettes - because North Hollywood’s inland climate and rental market both demand standalone livability.

1-Bed & 2-Bed ADU

One-bedroom and two-bedroom ADUs in North Hollywood are where the TOC tier bonuses near the Metro station really pay off: eligible lots can exceed standard ADU size limits by 35-50%, making a true 2-bed, 2-bath unit feasible on a standard 5,000-square-foot R1 parcel. These projects run $260,000-$380,000 depending on bedroom count, finish level, and whether we specify James Hardie siding, which holds up better than vinyl against Valley dust and UV exposure. Every 1-bed and 2-bed ADU we design includes in-unit laundry hookups and dedicated parking access compliant with current LAMC standards.

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Trusted Brands We Service in North Hollywood

We specify and coordinate prefab and modular systems from Abodu, Cover, and Dvele within the same single-contract structure that governs our custom builds - no handoffs to third-party installers, no warranty gaps between factory and field. For exterior finishes on custom and modular projects, we regularly specify James Hardie fiber-cement siding because it performs predictably in North Hollywood’s thermal and UV environment, with documented installation details that LA plan checkers recognize. Our relationships with these manufacturers mean North Hollywood clients get accurate lead times before contract signing, not after.

Common New Detached ADU Problems We See in North Hollywood Homes

• 60-amp garage subpanels that can’t carry an ADU load. Nearly every postwar detached garage in North Hollywood was fed by a 60-amp subpanel off a 100-amp main - enough for a door opener and a light, not for a kitchen, laundry, and HVAC. We budget the 200-amp service upgrade as a contract allowance before demo, then confirm exact scope once we open the panel. The permit inspector will flag this at final if it’s skipped.
• Cloth-wrapped wiring and rotted sill plates at the alley wall. On a late-1940s ranch off Satsuma Street near the North Hollywood Metro station, our crew opened the existing detached garage for a new 1-bed ADU and found cloth-wrapped wiring, a 60-amp subpanel fed from a 100-amp main, and a rotted sill plate at the alley-facing wall. We wrote the 200-amp service upgrade and framing repair as contract allowances before demo, then priced the confirmed sill damage and Title 24 mini-split load in writing for owner sign-off before we touched the slab. The inspection-first sequence is what kept that job from turning into a mid-build change order.
• Undersized or water-damaged framing assumed to be sound. Postwar garage framing in North Hollywood was often built to car-storage standards, not residential load requirements. Once walls are open, we find inadequate headers, notched studs, or moisture damage from decades of alley drainage. Our contracts include a framing allowance with a unit price per linear foot of replacement, activated only if inspection confirms damage.
• Title 24 energy compliance treated as optional in 100°F+ summers. Sitting deep in the inland San Fernando Valley, North Hollywood regularly records summer highs above 100°F - often 12-15°F hotter than coastal LA neighborhoods - making high-R insulation and dedicated mechanical cooling non-negotiable. Mini-split heat pump systems have become the de facto standard here specifically because of this thermal load. We size every system to ACCA Manual J calculations for the exact orientation and shading of your lot, not rule-of-thumb guesses.

Pricing for New Detached ADU in North Hollywood, CA

We Also Serve Cities Near North Hollywood

Our crews build New Detached ADU in North Hollywood and throughout the immediate Valley area, including Studio City to the south, Van Nuys to the north, Burbank to the east, and Glendale to the northeast. Each city carries its own zoning, permit timelines, and utility coordination requirements - Burbank and Glendale are independent cities with separate building departments, while Studio City and Van Nuys share LA’s permit system but with different TOC tier applicability. We adjust our permit sets and project schedules accordingly.

FAQs - New Detached ADU in North Hollywood