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ADU Builders & Contractors in West Hills, CA

West Hills, CA is home to 296 ADU contractors ready to help. From initial permits to final inspection, these local professionals know West Hills's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for West Hills

Avg. Cost/sqft

$197-$372

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 296 ADU Contractors in West Hills

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#1ROP DESIGN INC

West Hills, CA

Rop Design Inc — licensed ADU contractor in West Hills, CA. Detached ADU construction. 17+ years experience.

View Profile📞 (818) 216 5838
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#2CHAPPO'S CONSTRUCTION CO

West Hills, CA

Chappo'S Construction CO — licensed ADU contractor in West Hills, CA. Detached ADU construction. 30+ years experience.

View Profile📞 (818) 253 6728
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#3G & L DESIGN BUILDING AND LANDSCAPE INC

West Hills, CA

G & L Design Building And Landscape Inc — licensed ADU contractor in West Hills, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (866) 939 9036
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#4SIMPLE CHOICE CONSTRUCTION INC

West Hills, CA

Simple Choice Construction Inc — licensed ADU contractor in West Hills, CA. Detached ADU construction.

View Profile📞 (833) 633 7300
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#5MCCORMICK HOME BUILDERS INC

West Hills, CA

Mccormick Home Builders Inc — licensed ADU contractor in West Hills, CA. Detached ADU construction.

View Profile📞 (888) 606 1315
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#6PACHECO JOSUE ALEJANDRO

West Hills, CA

Pacheco Josue Alejandro — licensed ADU contractor in West Hills, CA. Detached ADU construction.

View Profile📞 (818) 585 4440
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#7BARDI EDMUND

West Hills, CA

Bardi Edmund — licensed ADU contractor in West Hills, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (818) 518 8887
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#8WALL COVERING INTERNATIONAL

West Hills, CA

Wall Covering International — licensed ADU contractor in West Hills, CA. Detached ADU construction. 43+ years experience.

View Profile📞 (818) 399 6997
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#9H T CONSTRUCTIONS

West Hills, CA

H T Constructions — licensed ADU contractor in West Hills, CA. Detached ADU construction. 36+ years experience.

View Profile📞 (818) 456 8197
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#10CA ATTIC EXPERTS

West Hills, CA

CA Attic Experts — licensed ADU contractor in West Hills, CA. Detached ADU construction. 9+ years experience.

View Profile📞 (818) 436 9087
View All 296 Contractors →

💰 How Much Does an ADU Cost in West Hills?

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

$1,101 - $5,101

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in West Hills

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