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ADU Builders & Contractors in Chatsworth, CA

Chatsworth, CA is home to 215 ADU contractors ready to help. From initial permits to final inspection, these local professionals know Chatsworth's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for Chatsworth

Avg. Cost/sqft

$197-$372

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 215 ADU Contractors in Chatsworth

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#1GLASSER CHARLES

Chatsworth, CA

Glasser Charles — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 42+ years experience.

View Profile📞 (818) 718 2235
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#2PRIME AIRE INC

Chatsworth, CA

Prime Aire Inc — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 35+ years experience.

View Profile📞 (818) 883 8600
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#3LARRABURE FRAMING

Chatsworth, CA

Larrabure Framing — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 27+ years experience.

View Profile📞 (818) 700 0041
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#4RBW GENERAL CONSTRUCTION INC

Chatsworth, CA

Rbw General Construction Inc — licensed ADU contractor in Chatsworth, CA. Detached ADU construction.

View Profile📞 (818) 270 1275
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#5SMA BUILDERS INC

Chatsworth, CA

Sma Builders Inc — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 41+ years experience.

View Profile📞 (818) 994 8306
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#6MARTIN W STUDLEY

Chatsworth, CA

Martin W Studley — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 27+ years experience.

View Profile📞 (818) 471 9359
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#7NUEVA CONSTRUCTION

Chatsworth, CA

Nueva Construction — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (818) 770 9783
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#8PROCON BUILDERS INC

Chatsworth, CA

Procon Builders Inc — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 13+ years experience.

View Profile📞 (310) 384 5575
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#9STRUCTURAL INTEGRITY

Chatsworth, CA

Structural Integrity — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 31+ years experience.

View Profile📞 (818) 625 2853
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#10CRESTLINE CONSTRUCTION CO

Chatsworth, CA

Crestline Construction CO — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 37+ years experience.

View Profile📞 (818) 727 7421
View All 215 Contractors →

💰 How Much Does an ADU Cost in Chatsworth?

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

$1,104 - $5,104

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Chatsworth

How much does it cost to build an ADU in Chatsworth?▼
The average cost to build an ADU in Chatsworth 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 Chatsworth?▼
The ADU permit process in Chatsworth 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 Chatsworth?▼
In Chatsworth, 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 Chatsworth?▼
Chatsworth 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 Chatsworth?▼
No parking is required for ADUs in Chatsworth 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.

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