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ADU Builders & Contractors in Calabasas, CA

Calabasas, CA is home to 224 ADU contractors ready to help. From initial permits to final inspection, these local professionals know Calabasas's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for Calabasas

Avg. Cost/sqft

$197-$372

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 224 ADU Contractors in Calabasas

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#1PROFFER BUILDING INC

Calabasas, CA

Proffer Building Inc — licensed ADU contractor in Calabasas, CA. Detached ADU construction.

View Profile📞 (818) 439 5476
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#2SERVICE MAGIC RESCUE

Calabasas, CA

Service Magic Rescue — licensed ADU contractor in Calabasas, CA. Detached ADU construction.

View Profile📞 (818) 340 9999
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#3DH BUILDERS LLC

Calabasas, CA

DH Builders Llc — licensed ADU contractor in Calabasas, CA. Detached ADU construction.

View Profile📞 (805) 325 3158
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#4LCO BUILDERS INC

Calabasas, CA

Lco Builders Inc — licensed ADU contractor in Calabasas, CA. Detached ADU construction.

View Profile📞 (818) 688 1525
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#5GENESIS BUILDERS LLC

Calabasas, CA

Genesis Builders Llc — licensed ADU contractor in Calabasas, CA. Detached ADU construction.

View Profile
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#6TOP GREEN BUILDERS

Calabasas, CA

Top Green Builders — licensed ADU contractor in Calabasas, CA. Detached ADU construction.

View Profile📞 (818) 404 4383
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#7ON THE LINE BUILDING

Calabasas, CA

ON The Line Building — licensed ADU contractor in Calabasas, CA. Detached ADU construction.

View Profile📞 (818) 357 0769
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#8O'NEILL CONSTRUCTION

Calabasas, CA

O'Neill Construction — licensed ADU contractor in Calabasas, CA. Detached ADU construction. 32+ years experience.

View Profile📞 (310) 913 3815
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#9LEVIN CONSTRUCTION

Calabasas, CA

Levin Construction — licensed ADU contractor in Calabasas, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (805) 869 2269
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#10BERNSEN COLLIN DESIGN

Calabasas, CA

Bernsen Collin Design — licensed ADU contractor in Calabasas, CA. Detached ADU construction. 17+ years experience.

View Profile📞 (323) 573 5650
View All 224 Contractors →

💰 How Much Does an ADU Cost in Calabasas?

Garage Conversion

$68,500 - $128,500

Converting existing garage to living space

Detached ADU

$147,000 - $322,000

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 Calabasas contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Calabasas

How much does it cost to build an ADU in Calabasas?▼
The average cost to build an ADU in Calabasas ranges from $147,000 to $322,000, or approximately $197 to $372 per square foot. Garage conversions typically cost $68,500 to $128,500.
How long does it take to get an ADU permit in Calabasas?▼
The ADU permit process in Calabasas 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 Calabasas?▼
In Calabasas, 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 Calabasas?▼
Calabasas 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 Calabasas?▼
No parking is required for ADUs in Calabasas 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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