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 $285,000-$475,000 all-in, from permit set through final LADBS inspection, with most projects clearing plan check in 8-14 weeks under the city’s permissive ADU ordinance. Because North Hollywood sits within the City of Los Angeles rather than an independent municipality like neighboring Burbank, detached ADUs here are permitted under LA’s streamlined rules, and the half-mile transit-priority corridor around the NoHo Metro B Line and G Line terminus allows the most favorable setbacks and lot-coverage allowances in the San Fernando Valley. Our crews serve North Hollywood from our Los Angeles office, and we scope every project with the local conditions that actually affect your line items: bare 1940s alley slabs, Federal Pacific panels, and Title 24 cooling loads closer to high-desert standards than coastal LA. Call (424) 325-4322 to schedule your free estimate. Written price before any work starts, per Haven Standard Clause 1.

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

We’ve designed, permitted, and built ADUs across North Hollywood since 2015 - the year California’s ADU laws shifted - and our permit sets are the core product, not an afterthought. Our New Detached ADU team has completed projects from the Arts District to the Valley Village edge, and we know which LADBS plan checkers flag slab vapor barriers and which ones scrutinize electrical load calculations on 100-amp Federal Pacific panels.

North Hollywood homeowners receive the same documentation we provide on every project: a written price before any work starts, a documented photo record on every site visit, and the 365-Day Done Right Promise backed in writing. Our license number appears on every page, and our crews are background-checked and uniformed. A live person answers calls 24/7 - no voicemail queue, no callback that doesn’t materialize.

We also offer a Free Second Opinion on any written estimate already in hand. Bring us another contractor’s scope, and we’ll tell you what’s missing, what’s inflated, and whether the slab and panel assumptions match what LADBS will actually require on your specific lot.

Our New Detached ADU Services in North Hollywood

Custom Built ADU

Custom detached ADUs in North Hollywood are our most requested project type, and for good reason. The post-WWII ranch and bungalow stock here sits on 6,000-8,000 sq ft lots with rear alley access, giving us flexible footprint options that tighter coastal lots don’t allow. We design and permit every custom unit in-house, then build under the same contract at the same written price. On a recent project off Peach Grove Avenue near the North Hollywood Arts District, we set a James Hardie-clad 650 sq ft detached one-bed for a post-production editor. The existing panel was a 100-amp Federal Pacific and the slab was bare 1940s concrete with no vapor barrier, so we budgeted a main-panel upgrade and a raised floor system before we ever quoted the structure. The unit cleared LADBS, and the alley-side placement meant the crew could crane and stage materials from the rear without blocking the driveway. Custom builds here typically run $320,000-$475,000 depending on square footage, finish level, and whether we’re replacing a slab or upgrading a panel.

Prefab ADU Installation

Prefab ADUs make sense in North Hollywood when speed matters and the lot conditions are predictable. We specify and coordinate systems from Abodu, Cover, and other prefab brands within our single-contract model, so the designer and installer are the same entity and the same written price. The critical local variable is site access: many NoHo lots have narrow driveway frontage on busy streets like Lankershim or Magnolia, so we crane and stage from the alley wherever possible. We also verify slab and utility assumptions before the prefab unit ships, because a factory-built module that lands on a non-compliant slab is an expensive problem. Prefab installations in North Hollywood typically run $285,000-$395,000 all-in, including site prep and utility tie-ins.

Modular ADU

Modular construction in North Hollywood follows the same principle as prefab, but with more design flexibility and longer lead times. We work with modular brands that allow custom floor plans within engineered parameters, and we handle the LADBS plan check as part of our standard permit set. The transit-priority corridor around the NoHo Metro station is particularly favorable for modular ADUs because the relaxed setback rules let us place larger units closer to property lines than would be possible in Burbank or Glendale. Modular projects here typically start around $310,000 and scale with square footage and finish selections.

Studio ADU

Studio ADUs are the entry point for many North Hollywood homeowners testing rental income or family housing. At 300-450 sq ft, a well-designed studio can clear LADBS as an efficient one-room dwelling with kitchenette and full bath. We see strong demand for these from entertainment-industry workers who need housing near studios and post-production houses along the Burbank corridor. The rental math works here in a way it doesn’t in every Valley neighborhood, because the transit anchor at NoHo Metro creates persistent demand from commuters who don’t want to own a car for every trip. Studio ADUs in North Hollywood typically run $285,000-$350,000, with the lower end achievable on lots where the slab and panel don’t need replacement.

1-Bed & 2-Bed ADU

One-bedroom and two-bedroom detached ADUs are where North Hollywood’s lot sizes and transit-priority corridor really pay off. The relaxed setbacks let us build deeper units with separate bedrooms, and the alley grid gives us the access we need for construction staging without disrupting the main house. Two-bed units are particularly popular for multi-generational families and for landlords targeting the stable entertainment-industry rental pool. These projects typically run $340,000-$475,000, with the upper range reflecting full kitchen specifications, in-unit laundry, and the panel and slab upgrades that mid-century lots commonly require.

Trusted Brands We Service in North Hollywood

We specify and coordinate prefab and modular systems from Abodu, Cover, and James Hardie within our single-contract model, meaning the brand selection, structural engineering, and LADBS permit set are handled by one team at one written price. James Hardie fiber-cement cladding is our default specification for North Hollywood’s heat-pocket climate - it holds up to the 100°F+ summer cycles better than vinyl or wood alternatives, and LADBS recognizes its fire rating for structures close to property lines. We don’t resell brand catalogs; we integrate these products into permit-ready designs that account for your specific slab, panel, and setback conditions.

Common New Detached ADU Problems We See in North Hollywood Homes

• Bare alley slabs with no vapor barrier. Mid-century garage slabs throughout NoHo were poured directly on ungraded soil with no vapor barrier and no insulation. LADBS consistently flags these as non-compliant for habitable space, and contractors who don’t budget for a raised floor system or full slab replacement upfront routinely hit costly change orders mid-permit. We assess the slab before quoting and document what we found.
• 100-amp Federal Pacific panels that can’t carry ADU load. The post-WWII housing stock in North Hollywood is full of these. A detached ADU with electric heat, water heater, and kitchen appliances adds 40-60 amps to a panel that was already marginal. We specify the panel upgrade in the original scope, not as a surprise after framing starts.
• HVAC scoped for coastal LA instead of Valley heat. North Hollywood’s San Fernando Valley heat pocket routinely exceeds 100°F in summer - 10 to 15 degrees hotter than the LA westside. Title 24 cooling loads here approach high-desert standards, and mini-split systems sized for Santa Monica will fail in July. We engineer for actual local conditions, which pushes HVAC line items past westside numbers but prevents callback failures.
• Homeowners budgeting for Burbank-style variance fights. Because North Hollywood is inside the City of Los Angeles, detached ADUs here are by-right under LA’s ADU ordinance, and the NoHo Metro transit-priority corridor allows setbacks and lot coverage that would require variances in independent municipalities. We scope for the permit path that actually applies to your lot, not the harder one you don’t need.

Pricing for New Detached ADU in North Hollywood, CA

We Also Serve Cities Near North Hollywood

Our crews work throughout the San Fernando Valley and adjacent communities. We also build New Detached ADU in North Hollywood for homeowners in Studio City, Van Nuys, Burbank, and Glendale. Each city has its own permitting path - Burbank’s independent municipal code, Glendale’s design review requirements - and we scope accordingly. The transit-priority advantages and mid-century housing stock we know in North Hollywood have direct parallels in Van Nuys and parts of Studio City, so the slab, panel, and HVAC assumptions we refine here transfer cleanly to nearby lots.

FAQs - New Detached ADU in North Hollywood