Fast, Reliable New Detached ADU Across Studio City
A new detached ADU in Studio City typically runs $285,000-$520,000 all-in, from permit set through final inspection, with custom finishes and hillside fire-zone requirements pushing the upper end. We’re Ellery ADU Studio, and our New Detached ADU team has designed, permitted, and built ADUs across Studio City’s flat Valley floor and its steep Mulholland-adjacent hillsides since 2015. Dispatch and scheduling are coordinated from our Los Angeles office; crews serve Studio City locally. Call (213) 329-7167 to schedule your free estimate.
Why Ellery ADU Studio West Hollywood Is Studio City’s Preferred New Detached ADU Company
We’ve completed new detached ADUs on Ventura Boulevard’s post-war ranch lots, in the hillside canyons above Fryman, and on narrow parcels near Coldwater Canyon Avenue. Our clients in Studio City receive the same documentation every time: a written price before work starts (Haven Standard, Clause 1), a documented photo record on every site visit, and a 365-Day Done Right Promise backed in writing.
Studio City’s housing stock splits cleanly in two. The Valley floor is dense with 1940s-1960s bungalows and California ranches, many with detached garages that convert neatly under LA City’s streamlined pathway. The hillsides toward Mulholland hold custom mid-century homes on steep, irregular lots where cut-and-fill grading and retaining walls routinely add five figures before framing begins. We’ve worked both. That matters because a contractor who only knows flat Valley sites will misprice your hillside job.
Our license number appears on every page, verified, not just claimed. Background-checked, uniformed crews handle the build. A live person answers calls 24/7. And we offer a Free Second Opinion on any written estimate already in hand.
Our New Detached ADU Services in Studio City

Custom Built ADU
Custom built ADUs are our core work in Studio City, especially on hillside parcels where standard plans won’t fit. On a steep lot above Fryman Canyon, our crew built a new detached 2-bed ADU where the schedule was set entirely by long-lead items: custom rift-oak millwork, architectural glass sliders, and a James Hardie cladding package ordered before the first footing was poured. Because the site sat in the fire overlay, every one of those orders had to carry CAL FIRE-compliant specs on the construction documents before LAFD review - so we fixed the price in writing before we cut a single purchase order. That’s how custom work should run.

Prefab ADU Installation
Prefab ADU installation in Studio City requires brand fluency most contractors lack. We specify and coordinate systems from Abodu, Cover, and Dvele within the same single contract that covers design, permitting, and site prep. On Valley-floor parcels with clear access, a prefab unit can compress the build calendar significantly. But hillside sites with tight driveways or crane limitations may shift the math toward stick-built. We tell you which before you sign.

Modular ADU
Modular ADUs in Studio City face the same fire-zone constraints as site-built units - the LAFD plan-check applies regardless of construction method. We coordinate modular delivery from Mighty Buildings and other factory-built systems, then handle the VHFHSZ-compliant foundation, utility tie-ins, and finish work on site. The key is front-loading the documentation so factory specs and fire-department requirements align before modules ship.

Studio ADU & 1-Bed & 2-Bed ADU
Studio ADUs suit the smaller setbacks typical of Studio City’s 50-foot-wide Valley-floor lots, while 1-bed and 2-bed ADUs match the rental demand we see near Ventura Boulevard’s commercial corridor. On hillside sites, a 2-bed ADU often requires more sophisticated structural engineering - moment frames, hold-downs, deeper footings - to handle slope and seismic load. We price that engineering into the written quote from day one, not after geotech reports arrive.

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.
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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.
Before
AfterTrusted Brands We Service in Studio City
We specify and coordinate prefab and modular systems from Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, Tuff Shed, and James Hardie. For Studio City clients, this means we’re not learning your product on your dime. We know which cladding packages meet CAL FIRE ignition-resistance standards, which window vendors can deliver VHFHSZ-compliant glazing on a fixed schedule, and where the supply-chain bottlenecks sit this quarter. That fluency protects your fixed price.
Common New Detached ADU Problems We See in Studio City Homes

- Starting hillside ADUs without pre-ordering long-lead finishes. On Fryman Canyon and Mulholland parcels, we’ve seen projects lose four to eight weeks waiting on architectural glass and custom cabinetry after grading and foundation are already complete. We fix the price and lock the procurement schedule before breaking ground.
- Treating the VHFHSZ overlay as paperwork rather than a design driver. Failing to specify ignition-resistant framing and ember-resistant venting on the construction documents stalls LAFD plan-check for weeks. We build these specs into the permit set from the first submission.
- Quoting flat Valley-floor prices on steep hillside parcels. Cut-and-fill grading, retaining walls, and non-standard foundations add five figures before framing on Studio City’s hillsides. Our written quotes separate these line items so you see the real cost.
- Specifying coastal-LA mechanical packages for Valley heat. Studio City’s Valley floor hits 108-112°F during summer heat events. A standard cooling load calc won’t hold setpoint. We size mechanical systems for actual local conditions, not Santa Monica’s milder climate.
Pricing for New Detached ADU in Studio City, CA
A typical new detached Studio ADU on a flat Valley-floor lot in Studio City runs $285,000-$365,000 all-in, drawings through final inspection. A 1-bed detached ADU with mid-grade finishes lands around $340,000-$425,000. A 2-bed custom built ADU with architectural finishes on a hillside parcel typically runs $420,000-$520,000, with cut-and-fill grading, retaining walls, and the LAFD fire-zone overlay adding substantial line items.
| ADU Type | Studio City Price Range |
|---|---|
| Studio ADU (flat lot, standard finishes) | $285,000 - $365,000 |
| 1-Bed ADU (mid-grade finishes) | $340,000 - $425,000 |
| 2-Bed Custom ADU (hillside, architectural finishes) | $420,000 - $520,000 |
| Cut-and-fill grading + retaining walls (hillside add) | $35,000 - $85,000 |
| LAFD VHFHSZ plan-check timeline add | 4 - 8 weeks |
What moves the number: slope and soil conditions, fire-zone compliance requirements, finish grade (builder-grade versus custom millwork and architectural glass), and utility extension distance. Under Haven Standard Clause 1, the written price is fixed at signing. No change orders unless you change the scope. Call (213) 329-7167 for your exact quote - estimates are free.
We Also Serve Cities Near Studio City

Our crews regularly build New Detached ADU in Studio City and in neighboring communities: North Hollywood, Van Nuys, West Hollywood, and Sherman Oaks. Each city carries its own LADBS interpretation and fire-zone overlay quirks. We know which do and which don’t.
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

Yes. Hillside ADU applicants must clear a separate LA Fire Department plan-check under the VHFHSZ overlay before LADBS issues a building permit. This parallel approval track adds four to eight weeks and requires construction documents to explicitly specify CAL FIRE-compliant materials - ignition-resistant framing, ember-resistant venting, and often fire sprinklers. We build this timeline and these specs into our permit set from the first submission, not as a surprise after LADBS review. Call (213) 329-7167 for an exact quote - estimates are free.
Cut-and-fill grading, retaining walls, and non-standard foundation design on steep Studio City hillside parcels typically add $35,000-$85,000 before framing begins. The exact figure depends on slope percentage, soil stability, and access for excavation equipment. We separate this as a distinct line item in every written quote so you see the real number before signing. Call (213) 329-7167 for an exact quote - estimates are free.
Lead times, not labor, set the calendar. Custom rift-oak millwork, architectural glass sliders, and specialty cladding packages routinely carry 10-14 week procurement windows. On VHFHSZ sites, these items must carry fire-compliant specs on the construction documents before LAFD review, so ordering early isn’t optional - it’s structural to the permit pathway. We fix the price in writing and lock procurement before cutting purchase orders. Call (213) 329-7167 for an exact quote - estimates are free.
No. Our one-contract design-build model covers ADU Design & Permitting, construction, and final inspection under a single written price. You don’t manage a separate architect and hope their drawings match what a builder can price. The permit set is our core product, not an afterthought. If you already have an architect, we can review their drawings during our Free Second Opinion. Call (213) 329-7167 for an exact quote - estimates are free.
Studio City’s Valley floor regularly hits 108-112°F during summer heat events - well above coastal LA - and mechanical cooling sized to Santa Monica standards will fail to hold setpoint. The hillside canyons also funnel Santa Ana wind events that compound heat load. We size mechanical systems for actual local conditions, not generic coastal calcs, and we document the load calculation in your permit set. Call (213) 329-7167 for an exact quote - estimates are free.
Ready to price your project? Call (213) 329-7167 to schedule your free estimate. We’ll review your parcel, explain the fire-zone status, and deliver a written price before any work starts - Haven Standard, Clause 1, every time.
Written by Nadia Ellery, Owner at Ellery ADU Studio, serving Studio City since 2015.