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ADU Builders & Contractors in Hidden Hills, CA

Hidden Hills, CA homeowners looking to build an ADU have 5 licensed contractors to choose from, ready to help. Whether you're planning a garage conversion, detached ADU, or junior ADU, finding the right contractor in Hidden Hills starts here.

📊 ADU Quick Facts for Hidden Hills

Avg. Cost/sqft

$202-$377

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 5 ADU Contractors in Hidden Hills

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#1KOTAL ENGINEERING INC

Hidden Hills, CA

Kotal Engineering Inc — licensed ADU contractor in Hidden Hills, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (626) 926 6626
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#2KASSABIAN DEVELOPMENTS INC

Hidden Hills, CA

Kassabian Developments Inc — licensed ADU contractor in Hidden Hills, CA. Detached ADU construction. 33+ years experience.

View Profile📞 (818) 907 9222
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#3LIONELLI MASONRY INC

Hidden Hills, CA

Lionelli Masonry Inc — licensed ADU contractor in Hidden Hills, CA. Detached ADU construction. 47+ years experience.

View Profile📞 (818) 772 9411
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#4MARKARIAN CONSTRUCTION

Hidden Hills, CA

Markarian Construction — licensed ADU contractor in Hidden Hills, CA. Detached ADU construction. 34+ years experience.

View Profile📞 (818) 903 7015
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#5KDMB GROUP LLC

Hidden Hills, CA

Kdmb Group Llc — licensed ADU contractor in Hidden Hills, CA. Detached ADU construction.

View Profile📞 (619) 972 7479

💰 How Much Does an ADU Cost in Hidden Hills?

Garage Conversion

$71,000 - $131,000

Converting existing garage to living space

Detached ADU

$152,000 - $327,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,105 - $5,105

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Hidden Hills

How much does it cost to build an ADU in Hidden Hills?▼
The average cost to build an ADU in Hidden Hills ranges from $152,000 to $327,000, or approximately $202 to $377 per square foot. Garage conversions typically cost $71,000 to $131,000.
How long does it take to get an ADU permit in Hidden Hills?▼
The ADU permit process in Hidden 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 Hidden Hills?▼
In Hidden 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 Hidden Hills?▼
Hidden 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 Hidden Hills?▼
No parking is required for ADUs in Hidden 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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