Building an ADU in Studio City. Rules, costs, timeline.
What LAMC § 12.22.A.33 allows on a Studio City lot, how the Studio City RFA District and the hillside fire-zone rules change the math south of Ventura Boulevard, and what an all-in build costs in 2026.
What you can build — at a glance
Reviewed by CALI ADU’s ADU specialists · June 2026
- Max ADU size
- 1,200 sqft detached · 50% of primary (attached, 800 sqft state floor)
- Detached height
- Per zoning district (typ. 28–45 ft on residential lots) · 2 stories permitted (LAMC 12.22.A.33(d)(2))
- Attached height
- Up to 25 ft or primary dwelling’s zoning height (Gov. Code § 66321(b)(4)(D))
- Side & rear setbacks
- 4 ft (Gov. Code § 66314(d)(7))
- Units per SFR lot
- Up to 3: conversion ADU + JADU + new detached ≤800 sqft (Gov. Code § 66323; HCD Handbook). LAMC defaults to 1 ADU + 1 JADU — state law preempts.
- Parking required
- None on many Studio City lots (half-mile transit exemption, Gov. Code § 66322) — confirmed per lot in ZIMAS
- Permit timeline
- 60 days · ministerial review, no hearing (Gov. Code § 66317)
- Studio City RFA District
- Base 0.33 FAR on R1/RE lots (Ord. No. 182,048) — state law still guarantees an 800 sqft ADU (Gov. Code § 66321(b)(3))
- Detached Up to 1,200 sqft · 2 stories permitted (28–45 ft by zone)
- Attached Up to 25 ft or zoning height
- Junior ADU Up to 500 sqft inside primary dwelling
- Conversion Existing accessory structure to ADU
- Exemption ADU 800 sqft / 16 ft state floor (Gov. Code § 66323)
Per LAMC § 12.22.A.33 and Gov. Code §§ 66310–66342. Studio City is in the City of Los Angeles — permits run through LADBS. Cross-checked against the HCD ADU Handbook (March 2026). Citywide rules in full on our Los Angeles ADU guide.
On this page
Who permits ADUs in Studio City
Studio City is a neighborhood of the City of Los Angeles — not its own city. Every ADU here is permitted by the Los Angeles Department of Building and Safety under LAMC § 12.22.A.33, the city’s ADU ordinance, sitting on top of California state law (Gov. Code §§ 66310–66342). Cross Coldwater Canyon Avenue into Sherman Oaks or the LA River into North Hollywood and nothing changes; cross into Burbank and you’re under a different city’s ordinance entirely.
The citywide rules — sizes, setbacks, height, parking, and the places state law overrides LA’s ordinance — are covered in depth in our Los Angeles ADU guide. The snapshot above is the Studio City summary. What changes from neighborhood to neighborhood is the overlay map and the lots themselves. That’s what the rest of this page covers.
What’s different here: the RFA District and the hills
Two overlays do most of the work in Studio City, and they split the neighborhood roughly at Ventura Boulevard. Everything in this section is grounded in the Studio City RFA ordinance (Ordinance No. 182,048), LAMC § 12.22.A.33, and state law where it preempts — we cite the state sections inline. Your parcel’s exact overlays are on its ZIMAS report; we pull that report for every lot we review.
The Studio City Residential Floor Area District
Since March 2012, R1- and RE-zoned lots in Studio City sit in a Residential Floor Area Supplemental Use District (Ordinance No. 182,048). The base cap is a 0.33 floor-area ratio — on a 7,000 sqft lot, about 2,310 sqft of total residential floor area across the house and accessory buildings, with bonus options that can raise the cap. An ADU counts toward that total.
Here is the part most owners miss: the RFA cap cannot block your ADU at 800 square feet. State law guarantees an 800 sqft, 16-ft ADU with 4-ft setbacks on any single-family lot — no matter what local floor-area, coverage, or open-space limits say (Gov. Code § 66321(b)(3)). Above 800 sqft, the RFA math is real. Whether a 1,000 or 1,200 sqft plan fits depends on how much floor area your house already uses. We run that calculation before recommending a model.
South of the Boulevard: hillside and fire-zone rules
The canyon streets south of Ventura Boulevard largely sit in LA’s Hillside Area. Many lots are also in a Very High Fire Hazard Severity Zone. Under LAMC § 12.22.A.33, a lot in both zones can host an ADU only if the property has a fire sprinkler system, one off-street parking space, and at least 20 feet of roadway width along the frontage. One zone alone — hillside but not fire zone, or the reverse — doesn’t trigger the restriction. Hillside lots also bring grading and structural engineering into the design. That’s why we check the overlay status of a lot before anything else.
One thing Studio City does not have: a historic district. None of LA’s Historic Preservation Overlay Zones covers Studio City — the only Valley HPOZs are Balboa Highlands, Stonehurst, and Van Nuys (LA City Planning, adopted HPOZ list). No historic board reviews your ADU here.
The lots: flats, hills, and what fits
The flats between Ventura Boulevard and the LA River are classic ADU territory. Around Colfax Meadows and the Footbridge neighborhood, postwar ranch homes and earlier bungalows sit on lots that typically run 6,000 to 7,500 square feet. Long driveways end at a detached rear garage. That layout is the easiest ADU geometry there is — and it gives you three paths. The most valuable on most lots: keep the garage for parking and storage and add a new detached ADU beside it, with the driveway already handling access. If space is at a premium, or you want the full yard back, the garage converts — or comes down for a new detached unit in its footprint. Parking is rarely an issue. Many Studio City lots qualify for the half-mile transit parking exemption (Gov. Code § 66322) — the eastern flats near the Universal City B Line station clearly, and elsewhere it depends on Ventura Boulevard corridor service. We confirm your lot’s status in ZIMAS during the Backyard Review.
South of the Boulevard, the lots climb. Upslope and downslope parcels off Laurel Terrace and the canyon roads need engineering that flat lots don’t, and the fire-zone rules above apply to many of them. ADUs get built in these hills — but the right answer is usually a compact single-story plan placed where the lot is already level, not a maximum-size build. On the flats, the full lineup is in play, including two-story plans that keep the yard.
Permitting your ADU through LADBS
ADU review in Los Angeles is ministerial: LADBS checks your plans against the code, with no hearing and no neighbor sign-off. Once your application is complete, the city has 60 days to approve or deny it — miss the deadline and the application is deemed approved (Gov. Code § 66317). The city must also confirm completeness in writing within 15 business days (SB 543, effective January 1, 2026).
For a Signature Home, the permit step runs in weeks, not months. Our plans are pre-engineered, so plan check is a conformance review, not a from-scratch evaluation. Plan preparation takes about two weeks; construction runs four to six months depending on model size, and the construction schedule is guaranteed in writing with a daily penalty if we miss the contracted finish date. Start to finish — design through move-in — plan on roughly six to nine months. Custom designs are slower: bespoke architecture adds design time up front, and the city reviews those drawings for the first time. Design, permitting, and construction management run under one contract.
One Studio City-specific note: hillside lots south of the Boulevard add soils and structural engineering to the design phase. We scope that work during the lot review so it’s in the plan — and the price — before you commit.
Signature Homes that fit Studio City lots
Three picks for this neighborhood. The Westwood fits tight RFA math and hillside pads. The Melrose lands exactly on the 800 sqft state-protected size — the RFA District cannot block it. The Venice puts 1,080 sqft on a two-story footprint for flats lots with floor-area headroom.
The Westwood
1 BR / 1 BA · 550 sqft
$259,000 all-inclusive iFixed contract price for the Signature Home on a standard lot. Site-specific work — soil reports, utility routing, driveway, retaining walls — is identified and priced upfront, before you sign.
See model →
The Melrose
2 BR / 2 BA · 800 sqft
$329,000 all-inclusive iFixed contract price for the Signature Home on a standard lot. Site-specific work — soil reports, utility routing, driveway, retaining walls — is identified and priced upfront, before you sign.
See model →
The Venice
2 BR / 2 BA · 1080 sqft · 2-story
$399,000 all-inclusive iFixed contract price for the Signature Home on a standard lot. Site-specific work — soil reports, utility routing, driveway, retaining walls — is identified and priced upfront, before you sign.
See model →Recent CALI ADU work in the southeast Valley
Builds from the neighborhoods around Studio City — across the Burbank line and west along the 101.
What an ADU costs in Studio City (2026)
Studio City construction pricing is City of LA pricing — there’s no neighborhood premium on permits, only on the dirt. Industry-wide, detached ADUs in Los Angeles run roughly $350 to $550 per square foot, and hillside lots push toward the top of that range once engineering and access are priced in.
CALI ADU works differently: nine Signature Homes, each at a fixed, all-inclusive price — design, permits, construction, and finishes — from $219,000 to $459,000. The number we give you for your lot is the number you pay. Fees are part of that number, not an add-on: LADBS permit and plan-check fees are valuation-based, and state law exempts ADUs of 750 sqft or less (interior livable space) from development impact fees entirely, with larger units charged only proportionally (Gov. Code § 66311.5(c)).
Renting your ADU: long-term by design
Set short-term rental aside first: LA’s Home-Sharing Ordinance (No. 185,931) limits registration to a host’s primary residence, and ADUs permitted after January 1, 2017 aren’t eligible. A new Studio City ADU is a long-term rental product — which is where the durable income is anyway.
The conservative floor: HUD’s FY2026 Fair Market Rents for the Los Angeles–Long Beach–Glendale metro are $2,085 for a one-bedroom and $2,601 for a two-bedroom ($1,863 studio, $3,298 three-bedroom). Those are metro-wide figures that include decades-old apartment stock — you won’t find a new detached ADU in Studio City at those prices. New construction rents at a premium to the HUD benchmarks, and Studio City sits well above the metro average to begin with: walkable Ventura Boulevard, the studios five minutes away, and Carpenter Community Charter’s draw keep demand deep. Most clients see the project pay for itself within 7 to 12 years; the two-bedroom plans get there fastest.
Why Studio City is a strong ADU market
Studio City pairs Valley lot sizes with Westside-grade demand. The flats give you the room to build; the renter pool — industry professionals who want to live near the studios without a canyon commute — gives you the income. Property values here mean an ADU adds appraised value on top of rent, and a guest house or family unit carries its weight even if you never rent it.
The regulatory picture is friendlier than it looks. The RFA District caps total floor area, but state law walls off your right to an 800 sqft unit, parking requirements vanish near transit, and review is ministerial with a 60-day clock. The constraints that remain — floor-area math on the flats, engineering in the hills — are exactly the kind a fixed-price, pre-engineered product is built to absorb.
Your ADU questions, answered
The questions Studio City homeowners actually ask before they start — with citations to LAMC § 12.22.A.33 and Gov. Code §§ 66310–66342.
Does Studio City have its own ADU rules?
No. Studio City is a neighborhood of the City of Los Angeles, so every ADU is permitted by the Los Angeles Department of Building and Safety under LAMC § 12.22.A.33 plus California state law (Gov. Code §§ 66310–66342). ADU review is ministerial — no hearing, no discretionary review, and a 60-day decision clock under Gov. Code § 66317.
What is the Studio City RFA District, and does it limit my ADU?
The Studio City Residential Floor Area District (Ordinance No. 182,048, effective March 25, 2012) caps total residential floor area on R1 and RE lots at a base 0.33 FAR, with bonus options that can raise it. An ADU counts toward that total. But state law guarantees you can build an ADU of at least 800 square feet regardless of any local FAR, lot-coverage, or open-space limit (Gov. Code § 66321(b)(3)). Larger ADUs — up to LA’s 1,200 sqft detached cap — depend on your lot’s remaining floor-area headroom.
Can I build an ADU on a hillside lot south of Ventura Boulevard?
In most cases, yes. The restriction under LAMC § 12.22.A.33 applies to lots that sit in both a Very High Fire Hazard Severity Zone and a Hillside Area: those lots need a fire sprinkler system, one off-street parking space, and at least 20 feet of roadway width along the frontage. If your lot is in one zone but not both, the restriction doesn’t apply. Check your parcel in ZIMAS or send us the address — we check it during the Backyard Review.
Can I build a two-story ADU in Studio City?
Yes. In the City of Los Angeles, detached ADU height follows the zoning district’s height limit — typically 28 to 45 feet on residential lots — and two stories are permitted (LAMC 12.22.A.33(d)(2)). State law separately guarantees minimum height floors (Gov. Code § 66321(b)(4)). On Studio City’s flats, a two-story plan keeps more of the yard while adding a second bedroom or office.
Can I rent my Studio City ADU on Airbnb?
No. LA’s Home-Sharing Ordinance (No. 185,931) limits short-term rental registration to a host’s primary residence, and ADUs permitted after January 1, 2017 aren’t eligible. A new Studio City ADU is a long-term rental product — which is where the durable income is anyway.
How much rent can a Studio City ADU earn?
Use HUD’s FY2026 Fair Market Rents as the conservative floor: $1,863 for a studio, $2,085 for a one-bedroom, $2,601 for a two-bedroom, and $3,298 for a three-bedroom in the Los Angeles–Long Beach–Glendale metro. Those are metro-wide figures that include decades-old apartment stock. A new detached ADU in Studio City — a premium rental neighborhood with studio-industry demand — rents at a premium to those benchmarks.
Does a JADU require owner-occupancy?
Only sometimes, as of 2026. AB 1154 (effective January 1, 2026) amended Gov. Code § 66333(b) so JADU owner-occupancy is required only when the JADU shares a bathroom with the primary dwelling. A JADU with its own bathroom no longer triggers the owner-occupancy requirement under state law, even where older local summaries still describe the broader pre-2026 rule. Regular ADUs never require owner-occupancy (Gov. Code § 66315).
Is Studio City in a historic district (HPOZ)?
No. The City of Los Angeles maintains roughly three dozen Historic Preservation Overlay Zones, and none covers Studio City — the only Valley HPOZs are Balboa Highlands, Stonehurst, and Van Nuys (LA City Planning, adopted HPOZ list). Your ADU gets standard ministerial review with no historic-board step.
ADU building nearby
CALI ADU builds across the City of Los Angeles and neighboring cities. Citywide rules: Los Angeles ADU guide. Next door: Sherman Oaks — same ordinance, no RFA district. Nearby: Burbank and Glendale — both independent cities with their own ADU ordinances.
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