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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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#1ROCK R W CONSTRUCTION

Chatsworth, CA

Rock R W Construction — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 46+ years experience.

View Profile📞 (818) 687 7836
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#2TALL CONSTRUCTION AND ROOFING

Chatsworth, CA

Tall Construction And Roofing — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 36+ years experience.

View Profile📞 (818) 262 5495
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#3SUPERIOR CONSTRUCTION

Chatsworth, CA

Superior Construction — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 20+ years experience.

View Profile📞 (818) 480 8545
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#4RIGHT CHOICE HEATING AND AIR INC THE

Chatsworth, CA

Right Choice Heating And Air Inc The — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 12+ years experience.

View Profile📞 (818) 435 7560
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#5G & L DESIGN AND CONSTRUCTION INC

Chatsworth, CA

G & L Design And Construction Inc — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 20+ years experience.

View Profile📞 (818) 727 9090
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#6RAFCO ELECTRIC

Chatsworth, CA

Rafco Electric — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 43+ years experience.

View Profile📞 (818) 953 9090
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#7HOUSE OF CLOSETS INC

Chatsworth, CA

House OF Closets Inc — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 31+ years experience.

View Profile📞 (818) 350 0080
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#8GRINBAUM JOSEPH

Chatsworth, CA

Grinbaum Joseph — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 49+ years experience.

View Profile📞 (818) 341 3236
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#9LOYD M W INC

Chatsworth, CA

Loyd M W Inc — licensed ADU contractor in Chatsworth, CA. Detached ADU construction. 30+ years experience.

View Profile📞 (818) 882 3208
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#10BBB CONSTRUCTION CREW INC

Chatsworth, CA

Bbb Construction Crew Inc — licensed ADU contractor in Chatsworth, CA. Detached ADU construction.

View Profile📞 (818) 486 4748
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.

Also See ADU Contractors In

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