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ADU Builders & Contractors in San Juan Capistrano, CA

San Juan Capistrano, CA homeowners looking to build an ADU have 177 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 San Juan Capistrano starts here.

📊 ADU Quick Facts for San Juan Capistrano

Avg. Cost/sqft

$193-$368

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 177 ADU Contractors in San Juan Capistrano

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#1LUXIR

San Juan Capistrano, CA

Luxir — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 16+ years experience.

View Profile📞 (949) 300 6579
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#2AQUATIC TECHNOLOGIES

San Juan Capistrano, CA

Aquatic Technologies — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 28+ years experience.

View Profile📞 (949) 493 9548
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#3DARK HORSE CONSTRUCTION CO

San Juan Capistrano, CA

Dark Horse Construction CO — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 17+ years experience.

View Profile📞 (949) 293 4828
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#4SCOTT BUILDERS INC

San Juan Capistrano, CA

Scott Builders Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 15+ years experience.

View Profile📞 (949) 426 9495
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#5J'S & J'S CONSTRUCTION INC

San Juan Capistrano, CA

J'S & J'S Construction Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction.

View Profile📞 (949) 542 2635
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#6EVOCAL

San Juan Capistrano, CA

Evocal — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction.

View Profile📞 (949) 370 6008
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#7VECTOR 45 LLC

San Juan Capistrano, CA

Vector 45 Llc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction.

View Profile📞 (213) 448 0838
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#8DESCO WJ CONSTRUCTION

San Juan Capistrano, CA

Desco WJ Construction — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction.

View Profile📞 (714) 319 4612
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#9BD QUALITY CONSTRUCTION & REMODELING INC

San Juan Capistrano, CA

BD Quality Construction & Remodeling Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction.

View Profile📞 (949) 209 6678
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#10APEX CFM LLC

San Juan Capistrano, CA

Apex Cfm Llc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction.

View Profile📞 (424) 253 3608
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💰 How Much Does an ADU Cost in San Juan Capistrano?

Garage Conversion

$66,500 - $126,500

Converting existing garage to living space

Detached ADU

$143,000 - $318,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,097 - $5,097

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in San Juan Capistrano

How much does it cost to build an ADU in San Juan Capistrano?▼
The average cost to build an ADU in San Juan Capistrano ranges from $143,000 to $318,000, or approximately $193 to $368 per square foot. Garage conversions typically cost $66,500 to $126,500.
How long does it take to get an ADU permit in San Juan Capistrano?▼
The ADU permit process in San Juan Capistrano 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 San Juan Capistrano?▼
In San Juan Capistrano, 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 San Juan Capistrano?▼
San Juan Capistrano 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 San Juan Capistrano?▼
No parking is required for ADUs in San Juan Capistrano 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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