ADU in Studio City, CA
Junior ADU & Interior Conversion in Studio City typically runs $85,000-$165,000 all-in, while ADU Site Prep & Utilities adds $15,000-$75,000 depending on whether your lot sits on the flat Valley floor or the hillside south of Ventura Boulevard. We’re Ellery ADU Studio, and our Los Angeles office coordinates crews who work Studio City daily. Call (424) 407-8266 for a free written estimate - every price is locked under Haven Standard Clause 1 before any work starts.
Why Studio City Homes Are Different
Studio City occupies a split terrain that reshapes every ADU budget. North of Ventura Boulevard, the flat Valley floor holds post-WWII ranch homes built roughly 1945-1965 - detached single-car garages, generous rear yards, near-ideal for garage conversions or detached units. South of Ventura, lots climb toward the Santa Monica Mountains foothills with irregular grading and older, more varied construction that typically needs engineered retaining walls and custom foundations before ADU work begins.
The inland San Fernando Valley climate pushes summer highs past 100°F, making dedicated mini-split systems a functional necessity, not an upgrade. Hillside parcels fall within LA City’s Very High Fire Hazard Severity Zone, triggering Chapter 7A California Building Code requirements - ember-resistant vents, ignition-resistant exterior assemblies - that flat-lot jobs a mile north never see. And the CBS Studio Center on Radford Avenue anchors a premium rental market from entertainment workers who pay top dollar to live near active productions, making ADU ROI calculus here fundamentally different than in Burbank or Sherman Oaks.
Our Main Studio City Services
Studio City homeowners most often start with design and permitting or convert existing structures before building new.
ADU Design & Permitting in Studio City
Our permit set is the core product, not an afterthought. For Studio City properties, we navigate LA City’s permissive ADU ordinance while flagging hillside VHFHSZ triggers early - ember-resistant venting, ignition-resistant assemblies - so the set passes plan check the first time. Every drawing is produced in-house, not subcontracted, under a single contract with one written price. ADU Design & Permitting in Studio City covers the full permit set through final inspection.

Garage Conversion ADU in Studio City
Those 1945-1965 detached single-car garages on the Valley floor are near-perfect candidates: existing slab, existing roof line, utility stub-ins often straightforward. South of Ventura, we first verify the garage isn’t cut into hillside requiring retaining-wall engineering before we price. Either way, the conversion stays under one contract at one written price. Garage Conversion ADU in Studio City includes drawings through final inspection.

New Detached ADU in Studio City
Flat-lot rear yards north of Ventura can often accommodate a 1,200 sq ft detached unit under state law, while hillside lots south of the boulevard may need terracing, retaining walls, and custom foundations that reshape the budget entirely. We specify prefab systems from Abodu, Cover, or Dvele when they fit the site, or build stick-frame when they don’t - always under the same single contract. New Detached ADU in Studio City covers site analysis through move-in.

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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Junior ADU & Interior Conversion in Studio City

Junior ADU & Interior Conversion in Studio City lets homeowners carve rental income from existing square footage without adding footprint - critical on hillside lots where setbacks and grading make new construction prohibitive, and valuable on flat lots where the garage is already promised to a conversion. Junior ADU & Interior Conversion covers interior reconfiguration, separate entrance creation, and kitchenette utility tie-ins under one contract with one written price, with every project governed by Haven Standard Clause 1 (written price before work starts) and Clause 5 (no surprises, no scope creep).
The post-WWII ranch stock north of Ventura often holds underutilized basements, bonus rooms, or attached wings that convert cleanly. South of Ventura, older hillside homes may present irregular floor plates and non-conforming egress that we solve with engineered solutions rather than workarounds.
Basement ADU
Signs you need it
Your basement has 7.5+ feet of clear headroom, existing egress windows or a location where we can add one, and you’re not using the square footage.
What it costs in Studio City
Basement ADU conversions in Studio City typically run $95,000-$175,000 all-in, including moisture mitigation, egress window cutting, and full kitchenette and bath rough-in.
How we do it
We test for moisture intrusion, design the egress path to LA City fire and building code, produce the permit set in-house, and build the kitchenette, bath, and living space to the documented drawings.
Room-to-ADU Conversion
Signs you need it
You have a 300+ sq ft attached room - den, bonus room, former master suite - with direct exterior access or a wall we can open for one.
What it costs in Studio City
Room-to-ADU conversions in Studio City typically run $75,000-$140,000, scaling with whether we add a kitchenette, full bath, or separate meter.
How we do it
We verify the existing foundation and framing can support residential use, design the separate entrance and utility tie-ins, permit the work, and build to the signed scope with photo documentation at every visit.
What Junior ADU & Interior Conversion Costs in Studio City
| Item | Typical range in Studio City |
|---|---|
| Basement ADU conversion | $95,000 - $175,000 |
| Room-to-ADU conversion | $75,000 - $140,000 |
| Above-garage ADU (existing structure) | $85,000 - $155,000 |
Does a Junior ADU need its own meter in Studio City?
No - Junior ADUs share the primary residence’s meter by definition, though many homeowners opt for a separate electric sub-panel to track usage. Call (424) 407-8266 and we’ll walk through what your existing service can handle - estimates are free.
Can I convert any room in my Studio City house?
The room must meet minimum size, ceiling height, and egress requirements under LA City code, and the home must be owner-occupied if the unit is a JADU. We verify compliance during our first site visit before any pricing. Call (424) 407-8266 to schedule - estimates are free.
ADU Site Prep & Utilities in Studio City

ADU Site Prep & Utilities in Studio City solves the gap between “I want an ADU” and “we can actually build” - and that gap widens dramatically south of Ventura Boulevard where hillside grading, fire-hardening, and utility extension dominate the budget. ADU Site Prep & Utilities covers everything from foundation and grading to electrical panel upgrades and gas line extensions, always under the same single contract with a written price before ground breaks.
Flat-lot homes north of Ventura often need only modest utility work; hillside parcels routinely require engineered retaining walls, imported fill, and Chapter 7A fire-resistant assemblies before the ADU itself can begin.
Foundation & Grading
Signs you need it
Your lot slopes more than 2%, your garage slab is cracked or under 4 inches thick, or you’re building new on a hillside parcel south of Ventura.
What it costs in Studio City
Foundation and grading work in Studio City typically runs $18,000-$65,000, with hillside sites requiring engineered retaining walls at the higher end.
How we do it
We survey existing contours, design the cut-and-fill or retaining-wall solution, produce the engineered permit set, and build to the documented grades with photo record at every phase.
Electrical Panel Upgrade
Signs you need it
Your main panel is rated under 200 amps, has no open breaker spaces, or dates to the 1960s-1970s with known degradation.
What it costs in Studio City
Electrical panel upgrades in Studio City typically run $4,500-$12,000 for a 200-amp service, including LADWP coordination and permit.
How we do it
We calculate the ADU’s projected load, specify the new panel and feeder, coordinate with LADWP for service connection, and install with permit and inspection.
What ADU Site Prep & Utilities Costs in Studio City
| Item | Typical range in Studio City |
|---|---|
| Foundation & grading | $18,000 - $65,000 |
| Electrical panel upgrade | $4,500 - $12,000 |
| Plumbing lateral extension | $8,000 - $22,000 |
Do I need a retaining wall for my Studio City ADU?
Only if your lot slopes significantly or you’re building south of Ventura on hillside terrain - flat Valley floor lots rarely need them. We verify grades during site analysis before pricing. Call (424) 407-8266 for a free estimate.
Will LADWP require a service upgrade for my ADU?
It depends on your existing panel capacity and the ADU’s projected electrical load - many 100-amp panels cannot handle an additional dwelling unit. We calculate this during design and coordinate the upgrade if needed. Call (424) 407-8266 for a free assessment.
Brands We Service in Studio City
We specify and coordinate prefab and modular systems from Abodu, Cover, Dvele, and Mighty Buildings within the same single contract, sourcing parts through Los Angeles-area distribution and maintaining build-schedule alignment so factory delivery and site prep finish together. our brands
Pricing for ADU in Studio City, CA

| Service | Typical range in Studio City |
|---|---|
| Junior ADU & Interior Conversion - Basement ADU | $95,000 - $175,000 |
| Junior ADU & Interior Conversion - Room-to-ADU | $75,000 - $140,000 |
| Junior ADU & Interior Conversion - Above-Garage ADU | $85,000 - $155,000 |
| ADU Site Prep - Foundation & Grading | $18,000 - $65,000 |
| ADU Site Prep - Electrical Panel Upgrade | $4,500 - $12,000 |
| ADU Site Prep - Plumbing Lateral Extension | $8,000 - $22,000 |
Studio City prices push toward the higher end when hillside grading, Chapter 7A fire-hardening, or LADWP service upgrades enter scope - flat-lot jobs with straightforward utility tie-ins stay at the lower end. Every figure above is paired with Haven Standard Clause 1: your written, line-item price is locked before any work begins, with no door-side upsells and no change orders unless you change the scope in writing.
Neighborhoods We Serve in Studio City
Our crews work across Studio City’s full geography, from the flat Valley floor to the Santa Monica Mountains foothills. Dispatch and scheduling are coordinated from our Los Angeles office, with typical first-site-visit availability within a few business days of your call.
- Colfax Meadows
- Silver Triangle
- Longridge Estates
- Woodbridge Park
- Laurelwood
Service Area - Cities Near Studio City

We serve homeowners throughout the San Fernando Valley and adjacent LA basin, with crews working daily in North Hollywood, CA, Van Nuys, CA, West Hollywood, CA, and Sherman Oaks, CA. Each city carries its own permit jurisdiction and local conditions - Burbank, for instance, is a separate city with separate ADU rules entirely - and we price and permit accordingly.
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 About ADU in Studio City

Studio City falls under City of Los Angeles jurisdiction, which operates under state-mandated streamlined ADU review - typically 60 days for a complete submittal, though hillside VHFHSZ parcels or incomplete drawings extend this. We produce the full permit set in-house to minimize back-and-forth.
California law prohibits HOAs from outright banning ADUs, but some Studio City associations impose design guidelines or parking requirements that affect placement and aesthetics - we review your CC&Rs during our first site visit and factor any compliance work into the written price.
Yes - many of our Studio City clients are entertainment-industry professionals with irregular schedules. We coordinate access, provide documented photo records of every visit, and schedule inspections at times you designate. Call (424) 407-8266 to arrange a site visit that fits your calendar.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Studio City Customers Say
"The permit set and the build were one contract with one number. Our neighbours used two firms and spent a year watching them blame each other."
- Helena V."Every allowance was itemised at the start, so the finish selections did not turn into a surprise at the end."
- Benedict H."Garage conversion finished on the drawings and close to the schedule. They were honest that the sewer connection was the unknown, and it was."
- Arjun D.