Fast, Reliable New Detached ADU Across Studio City
A new detached ADU in Studio City typically runs $220,000-$380,000 all-in, from permit set through final inspection, with custom builds at the higher end and prefab or modular systems starting closer to the middle. Most projects take 8-14 months depending on LA City plan-check cycles and whether your lot sits on the flat Valley floor or the graded hillside south of Ventura Boulevard. Call (424) 407-8266 to schedule your free estimate - every quote is written and fixed before any work begins, per Haven Standard Clause 1.
We’ve designed, permitted, and built ADUs across Studio City since 2015 - from the post-war ranches north of Ventura Boulevard with their generous rear yards to the hillside streets climbing toward Mulholland where Chapter 7A fire-hardening rules apply. Our permit sets are prepared in-house, not outsourced to a drafter who disappears after the first submittal. And because we’re a design-build studio, the person who draws your foundation detail is the same team that pours it. No designer-builder blame gap.
Dispatch and scheduling for Studio City projects are coordinated from our Los Angeles office; crews serve the neighborhood locally and know the difference between a flat-lot permit path and a hillside VHFHSZ review.
Why Ellery ADU Studio North Hollywood Is Studio City’s Preferred New Detached ADU Company
Studio City homeowners find us after they’ve already talked to a contractor who quoted a number over the phone, then added 30% once the city returned comments. We don’t do that. Under Haven Standard Clause 1, the written price you receive before signing is the price you pay. We’ve completed 900+ ADUs since 2015, every one with that same written-price guarantee and a documented photo record on every site visit.
Our crews know the local conditions that generic LA ADU guides miss. The chloride-laden air here - carried inland from the Pacific on prevailing winds - destroys standard galvanized hardware in 2-4 years, even though we’re 12 miles from the beach. We specify 316 stainless fasteners and marine-grade finishes on every Studio City detached ADU. That’s not upselling. It’s specifying correctly for this microclimate.
A live person answers calls 24/7. No voicemail queue, no callback that doesn’t materialize.
Our New Detached ADU Services in Studio City
Custom Built ADU
Our Custom Built ADU service in Studio City starts with a measured site survey and a feasibility study that accounts for your lot’s specific constraints - flat Valley floor or graded hillside, sewer lateral location, and whether your address triggers Chapter 7A fire-hardening requirements. We design the permit set in-house, submit to LA City, and build under a single contract at a single written price. Custom builds in Studio City typically range $280,000-$380,000 all-in, depending on square footage, foundation type, and finish level.
Prefab ADU Installation
We specify and coordinate prefab systems from Abodu, Cover, and Dvele within the same single-contract model - drawings, permits, site prep, utility tie-ins, and installation as one scope, one price. Prefab ADUs in Studio City generally run $220,000-$320,000 all-in, with faster permitting timelines than custom builds because the state-approved factory certifications reduce LA City plan-check rounds. The salt-air hardware specification still applies: we upgrade any factory-standard fasteners to 316 stainless during site assembly, and we specify thermally broken anodized window frames rather than mill-finish aluminum.
Modular ADU
Modular ADU systems from Mighty Buildings and other factory-built providers work well on Studio City’s flat-lot parcels north of Ventura Boulevard, where crane access is straightforward and foundation requirements are standard. We handle the transport permits, crane scheduling, and LA City modular inspection protocol. Modular projects in Studio City typically start around $240,000 all-in. Hillside lots south of Ventura usually require custom foundations that make modular less cost-effective; we’ll tell you that in the feasibility study, not after you’ve paid a deposit.
Studio ADU
A Studio ADU - single open living/sleeping space with kitchenette and bath - is the most common detached ADU we design in Studio City, typically 350-450 square feet. The compact footprint keeps foundation and utility costs controlled while maximizing rental income from the entertainment-industry tenants who dominate this market. Studio ADUs in Studio City generally run $220,000-$290,000 all-in. We always specify a dedicated mini-split system; the inland Valley heat here makes shared HVAC from the main house impractical and illegal under current energy code.
1-Bed & 2-Bed ADU
1-Bed & 2-Bed ADU configurations appeal to Studio City homeowners targeting the longer-term rental market - production coordinators, writers’ room staff, and crew members who want separation from the main house and will pay premium rents for it. These run $260,000-$380,000 depending on bedroom count, bathroom configuration, and whether the lot requires engineered retaining walls. The CBS Studio Center presence on Radford Avenue creates rental demand that doesn’t exist at this intensity in neighboring Sherman Oaks or Van Nuys; we factor that into every pro forma we prepare.
What happens when you call
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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 Studio City
We specify and coordinate prefab and modular systems from Abodu, Cover, Dvele, and Mighty Buildings within our single-contract design-build model. Our familiarity with these brands’ structural systems, utility connection points, and LA City approval documentation means we can price accurately upfront and avoid the change orders that plague multi-vendor ADU projects. For site-built work, we source James Hardie fiber-cement siding and trim - specified for its ignition-resistant rating on hillside VHFHSZ parcels - and coordinate Tuff Shed structures where appropriate for accessory storage paired with the ADU. Every brand we specify is chosen with Studio City’s salt-air corrosion and fire-hardening requirements in mind, not just catalog availability.
Common New Detached ADU Problems We See in Studio City Homes
- Flash-rusted roofing fasteners - On a detached ADU off Radford Avenue near CBS Studio Center, we found the previous builder’s galvanized roofing nails completely rusted through after just four years, causing the fascia board to rot and the drip edge to separate. Water was wicking behind the siding. We replaced the entire roof with 316 stainless ring-shank nails and coated steel drip edge, then switched the window frames from mill-finish aluminum to thermally broken anodized frames with stainless hinges, and sealed every paver joint with a urethane-based grout instead of sand. The homeowner, a studio production coordinator, said the ADU now stays cooler in summer and the hardware looks new after two years, unlike her main house’s original 1960s garage.
- Corroded aluminum window frames and railings - Standard aluminum window frames and railings pit and corrode on the inland-facing side, especially after summer heat cycles and occasional marine layer condensation, leading to stuck windows and chalky, oxidized finishes. We specify thermally broken anodized frames with stainless hardware on every Studio City ADU.
- Failed paver joints in ADU patios - Sand-set or polymeric-sand paver joints in ADU patios and walkways erode and grow weeds within one season because the salt air degrades the binder. We specify sealed urethane grout instead, which costs more upfront and eliminates the repair cycle.
- Underspecified HVAC for Valley heat - Studio City’s inland San Fernando Valley position means summer highs routinely exceed 100°F, far hotter than coastal LA. A shared wall-mounted mini-split or, worse, reliance on the main house’s aging central system, leaves tenants uncomfortable and triggers code compliance issues at inspection. We specify a dedicated mini-split as standard, not an upgrade.
Pricing for New Detached ADU in Studio City, CA
A new detached ADU in Studio City runs $220,000-$380,000 all-in, with the final number determined by four factors: construction type (custom, prefab, or modular), foundation requirements (flat-lot standard vs. hillside engineered), fire-hardening compliance (Chapter 7A on VHFHSZ parcels), and finish specification (marine-grade hardware and finishes add 8-12% over inland-standard materials but eliminate replacement costs within a decade).
Here’s how the ranges break down for Studio City’s market:
| ADU Type | Typical Range (all-in) |
|---|---|
| Studio ADU (custom site-built) | $220,000 - $290,000 |
| 1-Bed ADU (custom site-built) | $260,000 - $340,000 |
| 2-Bed ADU (custom site-built) | $300,000 - $380,000 |
| Prefab ADU (Abodu, Cover, Dvele) | $220,000 - $320,000 |
| Modular ADU (Mighty Buildings) | $240,000 - $330,000 |
The price gap between coastal-spec and inland-spec hardware is real - typically $8,000-$15,000 on a standard detached ADU. But the cheap spec costs more within a decade when you’re replacing rotted fascia, stuck windows, and failed roof sheathing. Under Haven Standard Clause 1, every project is quoted with a written price before any work begins. Call (424) 407-8266 for your free estimate.
We Also Serve Cities Near Studio City
Our New Detached ADU team serves homeowners throughout the central San Fernando Valley and adjacent areas, including Studio City, North Hollywood, Van Nuys, West Hollywood, and Sherman Oaks. Each city has distinct permitting paths - Burbank is its own city with separate ADU rules, while North Hollywood and Van Nuys fall under LA City jurisdiction like Studio City. We know which is which.
Serving Studio City, CA - Our Local Coverage Area
We’re based in the Studio City 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 - New Detached ADU in Studio City
Studio City’s inland Valley location means any detached ADU here must handle 100°F+ summer heat and occasional coastal marine layer intrusion, but the air itself carries enough chloride from the Pacific that unpainted steel hardware flash-rusts within 2-3 years, unlike in Burbank where the same hardware lasts 5+ years. This salt-laden air forces us to specify 316 stainless or hot-dip galvanized fasteners and marine-grade finishes on every detached ADU, even though we’re 12 miles from the beach. The added material cost - typically $8,000-$15,000 - prevents the hidden water intrusion and structural rot that destroy cheaper specs within a decade. Call (424) 407-8266 for an exact quote on your project; estimates are free.
Yes, if your parcel falls within LA City’s designated Very High Fire Hazard Severity Zone (VHFHSZ), which covers the hillside portions of Studio City south of Ventura Boulevard climbing toward Mulholland. Chapter 7A of the California Building Code requires ember-resistant vents, ignition-resistant exterior assemblies, and specific roofing materials that add meaningful cost and scope - typically $15,000-$35,000 depending on ADU size and access. Flat-lot parcels north of Ventura in the same ZIP code usually don’t trigger these requirements. We verify VHFHSZ status in our initial feasibility study before quoting. Call (424) 407-8266 to check your address.
Studio City’s inland San Fernando Valley position means summer highs routinely exceed 100°F - far hotter than coastal LA - making a dedicated mini-split system a functional necessity in any new ADU, not an upgrade. Shared HVAC from the main house is impractical (duct runs lose efficiency over distance), often illegal under current energy code, and leaves tenants uncomfortable during heat waves. We specify a dedicated mini-split as standard equipment on every Studio City detached ADU, sized to the unit’s calculated cooling load. Call (424) 407-8266 for an exact specification and quote.
Yes, if the garage meets LA City’s structural and setback requirements for ADU conversion - most detached single-car garages built 1945-1965 on Studio City’s flat Valley floor qualify, while hillside garages often require foundation reinforcement or retaining wall work first. The conversion path is typically faster and less expensive than new construction, running $120,000-$220,000 all-in depending on existing slab condition, electrical service capacity, and whether the garage shares a wall with the main house (triggering fire-separation rules). We assess existing conditions with a documented photo record before quoting. Call (424) 407-8266 to schedule a feasibility visit.
The CBS Studio Center on Radford Avenue anchors a persistent, premium rental market from entertainment workers - writers, crew, assistants - who pay top dollar to live within walking or biking distance of active productions, making the ADU ROI calculus here fundamentally different than in neighboring Burbank (a separate city with separate rules) or Sherman Oaks (no comparable studio anchor). This demand supports higher rents per square foot than most Valley locations and justifies the upfront investment in quality finishes and proper HVAC that attract long-term tenants. We prepare a rental pro forma as part of every Studio City feasibility study. Call (424) 407-8266 to review the numbers for your property.
Ready to price your new detached ADU? Call (424) 407-8266 to schedule your free estimate. Every quote is written, itemized, and fixed before any work begins - per Haven Standard Clause 1, the scope is locked at signing; no door-side upsells, no scope creep. We also offer a Free Second Opinion on any written estimate already in hand.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Studio City since 2015.