Studio City ADU: Regulations, Costs & Permits

• Who permits it: Studio City is part of the City of Los Angeles, so LADBS issues ADU permits, submitted online through ePlanLA. City Planning steps in when a specific plan, the Coastal Zone, or a historic overlay requires its sign-off.
• Two tracks: LA sorts ADUs into State ADUs (such as conversions, JADUs, and a detached unit up to 800 sq ft with 4 ft side and rear setbacks), which skip local standards, and Ordinance ADUs, which follow the city's own ADU ordinance.
• Timeline: state law gives the city 15 business days to decide an application is complete and 60 days to approve or deny it.
• Standard Plan Program: LADBS pre-approves privately designed ADU plans. You license a plan, add site-specific drawings, and LADBS reviews only zoning, foundation, and clearances for your lot.
• Fees: no impact fees at 750 sq ft of living space or less, and ADUs are exempt from the city park fee and affordable housing linkage fee. LAUSD school fees apply above 500 sq ft.
• Renting: a new detached ADU is generally not rent-stabilized, but adding one to a pre-1978 house can bring that house under the RSO. New ADUs outside the RSO generally fall under the Just Cause Ordinance. Home-sharing is only allowed if the ADU is the host's own primary residence.

Studio City is in the Sherman Oaks-Studio City-Toluca Lake-Cahuenga Pass Community Plan Area. Hillside lots within half a mile of Mulholland Drive can fall under the Mulholland Scenic Parkway Specific Plan, which adds its own review before the LADBS permit:

• Mandatory pre-review: you meet with Mulholland staff before filing anything.
• Board or staff: projects adding more than 900 sq ft (cumulative since 1992) go to the Mulholland Design Review Board. Smaller ones may get a staff Administrative Clearance, unless the lot is near parkland, a prominent ridge, or a mapped stream.
• What reviewers look at: ridgeline visibility from Mulholland, grading within 100 ft of streams, and height for structures visible from the road. No new driveways onto Mulholland.
• Worth asking: the city's ADU clearance template predates state rules exempting State ADUs from local standards, so confirm how it applies to your unit.

• Fire zone: LAFD lists parts of Studio City in the Very High Fire Hazard Severity Zone. ADUs there are built to the 2025 Wildland-Urban Interface Code with an LAFD hydrant and access clearance, and brush has to be cleared within 200 ft of structures.
• Fire plus hillside lots: LA's ordinance restricts ADUs on lots in both the fire zone and a Hillside Area. Current city guidance says it can't be applied to State ADUs, and most of its conditions can't be enforced on Ordinance ADUs either.
• Baseline Hillside Ordinance: governs floor area by slope band, grading, and height on hillside parcels. Street improvements generally can't be required for an ADU.
• Sprinklers: not required unless the main house requires them, even on hillside fire lots.

• Ventura-Cahuenga Boulevard Corridor Specific Plan: the Studio City and Cahuenga Pass segment runs from west of Woodrow Wilson Drive to Fulton Avenue, mostly covering the commercial boulevard.
• River Improvement Overlay: some Studio City single-family lots near the LA River carry an RIO designation. Check ZIMAS and ask LADBS whether it affects your ADU.
• Protected trees: native oaks, walnut, sycamore, bay laurel, elderberry, and toyon are protected at 4 inches of trunk diameter citywide.
• No HPOZ: Studio City has no historic preservation overlay zone.

Is ADU permitting harder in the Studio City hills?

It adds steps. Lots near Mulholland may need Mulholland Specific Plan review, fire zone lots need wildfire construction and brush clearance, and hillside lots follow slope-based floor area rules.

Who permits ADUs in Studio City?

LADBS, since Studio City is part of the City of Los Angeles. Applications go through ePlanLA.

Can I use a pre-approved ADU plan in Studio City?

Yes. LA's Standard Plan Program lets you license a pre-approved design, and LADBS then reviews only your site-specific pieces.

Do Studio City ADUs need fire sprinklers?

Only if the main house is required to have them. Building an ADU doesn't trigger sprinklers in the existing house.

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