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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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#1G S - TECH CONSTRUCTION INC

San Juan Capistrano, CA

G S - Tech Construction Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 37+ years experience.

View Profile📞 (818) 669 6044
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#2MAURER ROBERT E DEV CO

San Juan Capistrano, CA

Maurer Robert E Dev CO — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 55+ years experience.

View Profile📞 (949) 276 4270
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#3TYTANCO CONSTRUCTION INC

San Juan Capistrano, CA

Tytanco Construction Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (949) 295 8320
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#4MITCHELL THOMAS

San Juan Capistrano, CA

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

View Profile📞 (760) 831 2423
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#5MICHAEL J TILE INC

San Juan Capistrano, CA

Michael J Tile Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 24+ years experience.

View Profile📞 (949) 235 5100
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#6CENTURY ENT INC

San Juan Capistrano, CA

Century Ent Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (949) 489 9911
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#7PACIFIC CONSTRUCTION INNOVATIONS

San Juan Capistrano, CA

Pacific Construction Innovations — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (949) 439 8515
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#8TMR GENERAL ENGINEERING INC

San Juan Capistrano, CA

Tmr General Engineering Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (949) 878 8347
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#9GOPHER PACIFIC CONSTRUCTION INC

San Juan Capistrano, CA

Gopher Pacific Construction Inc — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction.

View Profile📞 (949) 877 2528
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#10LAZARO ANDRES

San Juan Capistrano, CA

Lazaro Andres — licensed ADU contractor in San Juan Capistrano, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (949) 842 1391
View All 177 Contractors →

💰 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

Los Angeles (3215)San Diego (2582)San Francisco (2170)Sacramento (1551)Riverside (925)Fresno (904)Anaheim (784)Irvine (760)

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