What is the maximum ADU size allowed in Malibu?

Detached ADUs in Malibu can be up to 1200 square feet.

ADU Builders & Contractors in Malibu, CA

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

The average cost ranges from $157,000 to $332,000, or $207-382 per square foot.

Q: How long does it take to get an ADU permit in Malibu?

The permit process typically takes 60 to 120 weeks in Malibu.

Building an ADU in Malibu? You'll find 110 licensed contractors in the area, ready to help. Malibu's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.

📊 ADU Quick Facts for Malibu

Avg. Cost/sqft

$207-$382

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 110 ADU Contractors in Malibu

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#1KNIGHTSBRIDGE CONSTRUCTION

Malibu, CA

Knightsbridge Construction — licensed ADU contractor in Malibu, CA. Detached ADU construction. 35+ years experience.

View Profile 📞 (818) 358 9202

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#2GODDARD LAWRENCE NATHAN

Malibu, CA

Goddard Lawrence Nathan — licensed ADU contractor in Malibu, CA. Detached ADU construction. 57+ years experience.

View Profile 📞 (310) 589 5467

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#3JEFF ALLYN

Malibu, CA

Jeff Allyn — licensed ADU contractor in Malibu, CA. Detached ADU construction. 30+ years experience.

View Profile 📞 (310) 508 7267

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#4WEBER E CONSTRUCTION

Malibu, CA

Weber E Construction — licensed ADU contractor in Malibu, CA. Detached ADU construction. 30+ years experience.

View Profile 📞 (213) 792 7030

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#5PIERSON ERIC GORDON

Malibu, CA

Pierson Eric Gordon — licensed ADU contractor in Malibu, CA. Detached ADU construction. 47+ years experience.

View Profile 📞 (310) 924 9246

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#6MKH DEVELOPMENTS

Malibu, CA

Mkh Developments — licensed ADU contractor in Malibu, CA. Detached ADU construction. 6+ years experience.

View Profile 📞 (805) 409 6792

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#7WILLIAMS MICHAEL B

Malibu, CA

Williams Michael B — licensed ADU contractor in Malibu, CA. Detached ADU construction. 34+ years experience.

View Profile 📞 (818) 585 3621

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#8HEARTWOOD C & D

Malibu, CA

Heartwood C & D — licensed ADU contractor in Malibu, CA. Detached ADU construction. 9+ years experience.

View Profile 📞 (310) 435 8495

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#9LAWRENCE & THOMAS ESTATE SERVICES

Malibu, CA

Lawrence & Thomas Estate Services — licensed ADU contractor in Malibu, CA. Detached ADU construction. 39+ years experience.

View Profile 📞 (310) 601 9100

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#10HALLEY SCOTT AND ASSOCIATES INC

Malibu, CA

Halley Scott And Associates Inc — licensed ADU contractor in Malibu, CA. Detached ADU construction. 42+ years experience.

View Profile 📞 (310) 457 5614

View All 110 Contractors →

💰 How Much Does an ADU Cost in Malibu?

Garage Conversion

$73,500 - $133,500

Converting existing garage to living space

Detached ADU

$157,000 - $332,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,097 - $5,097

Plan check, permits, utility connections

* Costs vary based on size, finishes, site conditions, and contractor. Get quotes from multiple Malibu contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Malibu

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

The average cost to build an ADU in Malibu ranges from $157,000 to $332,000, or approximately $207 to $382 per square foot. Garage conversions typically cost $73,500 to $133,500.

How long does it take to get an ADU permit in Malibu?▼

The ADU permit process in Malibu typically takes 60 to 120 weeks. California law requires cities to approve or deny ADU permits within 60 days of receiving a complete application.

What are the ADU size limits in Malibu?▼

In Malibu, detached ADUs can be up to 1200 square feet. Attached ADUs are limited to 50% of the primary dwelling or 1,200 sqft, whichever is less. Junior ADUs (JADUs) are limited to 500 sqft and must be within the existing home.

What is the setback requirement for ADUs in Malibu?▼

Malibu requires 4-foot setbacks from side property lines and 4-foot setbacks from rear property lines for new ADU construction. Converted structures (like existing garages) may maintain their current setbacks.

Do I need to provide parking for my ADU in Malibu?▼

No parking is required for ADUs in Malibu if your property is within half a mile of public transit, in a historic district, part of an existing multi-family building, or if the ADU is a garage conversion. Otherwise, one space may be required.

Also See ADU Contractors In

Los Angeles (3215)San Diego (2582)San Francisco (2170)Sacramento (1551)Riverside (925)Fresno (904)Anaheim (784)Irvine (760)

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