Westside · LA County

ADU permits in Malibu

Zip codes:902639026490265

Malibu is an independent coastal city of about 11,000 people stretching 27 miles along the Pacific Coast Highway between Santa Monica and Ventura County. It runs its own building and planning departments, with an Accessory Dwelling Unit (ADU) ordinance shaped almost entirely by California Coastal Act jurisdiction — nearly every parcel in Malibu is in the Coastal Zone and requires a Coastal Development Permit (CDP). Multiple recent fires (Woolsey 2018, Palisades 2025) have reshaped large parts of the city.

Independent city — not LADBS

Malibu runs its own building department. Permits go through Malibu Planning Department ↗, not the Los Angeles Department of Building and Safety (LADBS). Our address checker pulls real zoning + overlay data for any Los Angeles County address. The Malibu ordinance breakdown below covers the city-specific permit path.

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Malibu by the numbers

Rounded figures from the 2020 US Census, LA County Assessor parcel data, and the city's own published reports. Estimates only — your specific lot can vary widely.

Population

11,000

2020 Census

Single-family homes

~4,800

LA County Assessor

Median lot size

14,000 sqft

Approximate

Median home value

$4.2M

Zillow / Redfin

What makes Malibu different

Malibu's ADU ordinance is implemented through Malibu Municipal Code Title 17. Because almost the entire city is in the California Coastal Zone, the practical Malibu ADU pathway involves: (1) a CDP from the city (with California Coastal Commission appeal jurisdiction), (2) a building permit, and (3) for fire-zone parcels, Very High Fire Hazard Severity Zone (VHFHSZ) construction compliance. The 2018 Woolsey Fire and 2025 Palisades Fire both significantly affected parts of Malibu — rebuild permits are on an expedited Recovery track.

Malibu ADU ordinance — the rules that apply

Last verified: 2026-05-12

The current ADU rules in Malibu, sourced from the city's published ordinance and verified against CA Government Code §65852.2 (which preempts local rules stricter than state baselines). When you see "state default," that means the city can't reduce below this number under state law.

Max detached ADU size	1,200 sqft (state default)
Max ADU height	16 ft / 18 ft with second-story setbacks
Setbacks	4 ft side / 4 ft rear (state minimum)
Coastal Development Permit (CDP)	Required for nearly every parcel Almost the entire city is in the Coastal Zone. CDP adds 3-9 months and $1K-$3K on top of building permit fees.
VHFHSZ construction	Class A roofing, ember-resistant venting, fire-rated assemblies Required across most of Malibu. Adds roughly 7% to construction cost.
Septic capacity (no city sewer in most of Malibu)	ADU build must demonstrate adequate on-site septic capacity Septic upgrade or replacement is often the most expensive single cost on a Malibu ADU build.
Rebuild + ADU combined permits	Expedited track for Woolsey + Palisades Fire affected parcels Through the LA County Recovery + city of Malibu Recovery Permit Center programs.
Local processing time	Building permit 60 days; CDP 3-9 months runs in parallel

Source: Malibu Planning Department ↗

Active overlays + extra rules in Malibu

City overlays + state-level designations that hit a meaningful share of Malibu parcels. Each affects what you can build, how long it takes, or how much it costs.

California Coastal Zone

~98% of parcels

Near-universal in Malibu. Triggers Coastal Development Permit requirement, appeal jurisdiction to the California Coastal Commission, and stricter setback-from-bluff and stream-protection rules.

Very High Fire Hazard Severity Zone (VHFHSZ)

~85% of parcels

Most non-coastal parcels (canyons, hillside, inland) hit the VHFHSZ. Combined with the coastal canyon parcels affected by Woolsey + Palisades fires, this overlay drives most of the local construction-cost premium.

Post-fire rebuild zones

~18% of parcels

The 2018 Woolsey Fire destroyed ~470 structures in Malibu; the 2025 Palisades Fire damaged additional parcels. Rebuild parcels permit through the city's Recovery Permit Center on an expedited track.

Septic-served (no city sewer in most areas)

~90% of parcels

Most of Malibu has no centralized sewer. ADU permits require on-site wastewater treatment capacity — either upgrading the existing septic or installing a new system. $30K-$100K+ depending on soils.

Watch-outs specific to Malibu

Patterns we see across MalibuADU permits. None are dealbreakers — they're just the things people get wrong most often.

01
Coastal Development Permit timing eats your schedule, not plan check
Building permit timelines in Malibu are reasonable. CDP is the schedule killer — 3-9 months from the city, plus 49 days where the California Coastal Commission can appeal the city's decision. If your contractor or designer hasn't planned for the CDP track separately, your project will sit idle waiting.
02
Septic capacity is often the most expensive single line item
Most of Malibu has no sewer. An ADU adds bedrooms, which increases wastewater capacity requirements. Upgrading or replacing a septic system in Malibu's hillside soils can run $30K-$100K+. Get a septic-feasibility study before committing to plans.
03
Post-Woolsey + post-Palisades rebuild parcels have expedited paths
If your lot lost a primary residence to the 2018 Woolsey Fire or 2025 Palisades Fire, you qualify for the Malibu Recovery Permit Center's expedited rebuild track. ADU + primary rebuild can permit concurrently. Big timeline savings — confirm eligibility with the city's Recovery team.
04
PCH access matters more than lot size
Pacific Coast Highway (PCH) is Malibu's only major artery. Lots with bad PCH access (long single-lane driveways, fire-evacuation chokepoints) face additional fire-safety review during the building permit. Worth pricing into your project assumptions.

Plans that fit Malibu lots

Malibudoesn't maintain a city-specific pre-approved plan library the way the Los Angeles Department of Building and Safety (LADBS) does. California Department of Housing and Community Development (HCD)-approved prefab (which bypasses local plan check) and custom designer plans are the main paths:

Connect Homes

ADU14 · ADU15

HCD-certified — skips local plan check.

View Connect Homes →

Cover

ADU77 · ADU78 · ADU79

HCD-certified — skips local plan check.

View Cover →

Amenities + civic services in Malibu

Parks, libraries, and the school district that serve the area. Context that matters for renter appeal, family relocation, and long-term resale.

Parks + sports

Malibu Bluffs Park

Pacific Coast Highway, central Malibu

Cliff-top park overlooking the Pacific. Whale-watching viewing area + baseball + soccer fields.

Whale-watching viewpoint

Baseball
Soccer
Playground
Trails
Picnic

Trancas Canyon Park

Trancas Canyon Road, western Malibu

Family-oriented park with playground, picnic, and access to the Trancas Canyon trails.

Playground
Trails
Picnic

Legacy Park

Civic Center area, PCH + Webb Way

Native-plant restoration park + the city's main civic open space.

Trails
Picnic

Surfrider Beach (Malibu Lagoon State Beach)

PCH at Malibu Pier

Iconic surfing point break, on the National Register of Historic Places as the spiritual home of California surfing.

Historic surf break

Trails

Charmlee Wilderness Park

Encinal Canyon Road, western Malibu

590-acre wilderness park with hiking trails through coastal sage scrub.

Trails
Picnic

Libraries

Malibu Library
LA County Library
Civic Center, PCH + Webb Way
Single Malibu branch operated by LA County Library — Malibu doesn't run its own library system.

Public schools

School assignments vary by exact address. The district + notable schools below cover most of the area.

District

Santa Monica-Malibu Unified School District (SMMUSD)

Notable schools in the area

Malibu High School
Webster Elementary
Point Dume Marine Science Elementary
Pepperdine University (private, Pepperdine campus)

SMMUSD spans both Santa Monica and Malibu (a 35-mile geographic split). Pepperdine University occupies the bluffs adjacent to central Malibu and shapes much of the local rental economy.

Getting around Malibu

Car-dependent. PCH is the only arterial. Limited Metro bus service.

Transit + walkability

Bus lines

Metro 134 (Malibu to Downtown LA via Santa Monica) — limited

Nearest rail

Metro E Line (Expo) — Downtown Santa Monica Station (about 20-25 miles east depending on which part of Malibu)

Walkability

Almost entirely car-dependent. Malibu's only walkable pockets are around the Civic Center + Cross Creek Road shopping district.

Nearby airports

Distance + type for each major Los Angeles-area airport reachable from Malibu. Useful for travel, commute, and any flight-path noise concerns on specific parcels.

Santa Monica Airport (SMO)
~12 mi
General aviation
Closing 2028. Currently the closest GA option.
Los Angeles International (LAX)
~25 mi
International
About 45-75 min via PCH + Lincoln, depending on traffic.
Camarillo Airport (CMA)
~25 mi
General aviation
Ventura County GA field. Closer for residents in far-west Malibu.

Community + landmarks in Malibu

Annual events, landmarks, and the places that anchor the area's identity. Context for renter appeal and long-term resale.

Annual events

Malibu Chili Cookoff
Labor Day weekend (3 days) · since 1982
Long-running Labor Day fair benefiting the Malibu Boys + Girls Club. Carnival rides, food, music.
Source ↗
Malibu Pier Sportfishing + Charity Tournament
Various — see pier schedule
Recurring sportfishing tournaments off the Malibu Pier.
Source ↗
Malibu Surf Film Festival
October
Surf-culture film festival at the Malibu Jewish Center + various PCH venues.
Source ↗

What makes Malibu Malibu

Landmark

Malibu Pier

1905-built pier at Malibu Lagoon State Beach. Restaurants, sportfishing charters, and the historic Adamson House at the base.

Historic estate

Adamson House + Malibu Lagoon Museum

1929 Spanish Colonial Revival home with extensive original Malibu Potteries tilework. Museum + tours.

Museum

Getty Villa (Pacific Palisades, adjacent)

Technically in Pacific Palisades but driving access is through eastern Malibu. Antiquities collection housed in a recreation of a 1st-century Roman villa.

University

Pepperdine University

Christian liberal-arts university on a 830-acre bluff campus. Shapes much of Malibu's rental + retail economy.

Nearby areas to Malibu

Other Los Angeles-area pages worth a look. Each one runs different Accessory Dwelling Unit (ADU) rules depending on jurisdiction — we show you what changes when you cross a city or county line.

LA City

Pacific Palisades →

Post-fire rebuild zone. Most regulated permit terrain in LA (coastal + hillside + fire). Higher per-project spend than anywhere except Hollywood Hills.

Independent city

Santa Monica →

Strong walkability, the Metro E Line (Expo) terminus, and premium home values give Santa Monica excellent Accessory Dwelling Unit (ADU) economics. The trade-off is Coastal Development Permit (CDP) requirements on a strip along the ocean and design review on Ocean Park bungalow blocks.

Frequently asked questions about Malibu ADUs

›Can I build an ADU in Malibu?

Yes. Malibu allows ADUs under its local ordinance, aligned with California Government Code §65852.2 (the state baseline that preempts overly-strict local rules). Most single-family lots can host one ADU plus one JADU. Permits go through Malibu Planning Department, not LADBS — see the ordinance table above for the specific rules.

›How does Malibu differ from LA City for ADU permits?

Three main differences: the permit agency (Malibu Planning Department vs. LADBS), the local ordinance details (each city has some flexibility above the state baseline), and the timeline (some cities are faster, some slower than LA's 60-day plan check). See the ordinance breakdown above for the specifics on each.

›How much does it cost to build an ADU in Malibu?

Median home value in Malibu is around $4.2M, which usually means lot economics support a quality ADU build of $200K–$400K all-in. Hillside, coastal, or VHFHSZ lots add 7–25% on top. HCD-prefab units (Connect Homes, Cover, Plant Prefab) bypass local plan check entirely and typically run $190K–$350K turnkey.

›Does Malibu have pre-approved standard plans like LA's YOU-ADU?

No. Unlike LADBS, Malibu does not maintain a city-specific pre-approved plan library. The two faster paths are an HCD-approved prefab (factory-certified, skips local plan check) or a custom designer drawing for your lot. The slower path is a fully custom architect-led design.

›Will the PermitPathLA wizard work for my Malibu address?

Yes. The wizard pulls real zoning, overlay, and parcel data for any Los Angeles County address, including Malibu. What you'll see today: feasibility for your specific lot, the overlays that apply, and a routing summary pointing at Malibu Planning Department for the permit submittal. Deeper Malibu-specific permit walkthroughs are next on the roadmap as we expand from LADBS into the independent-city ordinances.

Ready to see what your Malibu lot can do?

Our free address checker pulls real zoning, overlay, and parcel data for any Los Angeles County address — including Malibu. Start there and we'll surface what applies to your specific lot.

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