ADU Builders & Contractors in Mountain Center, CA

Mountain Center, CA homeowners looking to build an ADU have 10 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 Mountain Center starts here.

📊 ADU Quick Facts for Mountain Center

Avg. Cost/sqft

$207-$382

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 10 ADU Contractors in Mountain Center

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Mountain Center, CA

Cooney Brian Construction Inc — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 24+ years experience.

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Mountain Center, CA

Kozlik Construction — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 47+ years experience.

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Mountain Center, CA

Mountain Mechanical Services Llc — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 17+ years experience.

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Mountain Center, CA

Howell Robert — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 11+ years experience.

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Mountain Center, CA

West Coast Building & Development — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 33+ years experience.

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Mountain Center, CA

Maloney & Sons — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 22+ years experience.

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Mountain Center, CA

Porter Architecture/Construction — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 52+ years experience.

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Mountain Center, CA

J&J Contracting — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 20+ years experience.

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Mountain Center, CA

J K S Construction — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 17+ years experience.

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Mountain Center, CA

Calacon Inc — licensed ADU contractor in Mountain Center, CA. Detached ADU construction. 34+ years experience.

💰 How Much Does an ADU Cost in Mountain Center?

Garage Conversion

$73,500 - $133,500

Converting existing garage to living space

Detached ADU

$157,000 - $332,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,111 - $5,111

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Mountain Center

How much does it cost to build an ADU in Mountain Center?
The average cost to build an ADU in Mountain Center ranges from $157,000 to $332,000, or approximately $207 to $382 per square foot. Garage conversions typically cost $73,500 to $133,500.
How long does it take to get an ADU permit in Mountain Center?
The ADU permit process in Mountain Center 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 Mountain Center?
In Mountain Center, 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 Mountain Center?
Mountain Center 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 Mountain Center?
No parking is required for ADUs in Mountain Center 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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