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ADU Builders & Contractors in San Jacinto, CA

Building an ADU in San Jacinto? You'll find 60 licensed contractors in the area, ready to help. San Jacinto's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.

📊 ADU Quick Facts for San Jacinto

Avg. Cost/sqft

$193-$368

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 60 ADU Contractors in San Jacinto

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#1ELMORE DENNIS CONSTRUCTION

San Jacinto, CA

Elmore Dennis Construction — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 41+ years experience.

View Profile📞 (951) 545 4351
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#2STANTON GENERAL CONSTRUCTION

San Jacinto, CA

Stanton General Construction — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (951) 295 1372
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#3DELTA ENGINEERING CONSTRUCTION COMPANY

San Jacinto, CA

Delta Engineering Construction Company — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 33+ years experience.

View Profile📞 (951) 992 6390
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#4MR BILL CONSTRUCTION SOLUTIONS

San Jacinto, CA

MR Bill Construction Solutions — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 35+ years experience.

View Profile📞 (951) 238 5155
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#5AYERS CONTRACTING COMPANY INC

San Jacinto, CA

Ayers Contracting Company Inc — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (951) 487 9140
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#6PROGRESSIVE COMMERCIAL BUILDERS

San Jacinto, CA

Progressive Commercial Builders — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (951) 830 9850
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#7MATHEY QUALITY CONSTRUCTION

San Jacinto, CA

Mathey Quality Construction — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (951) 537 8241
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#8JMAR BUILDERS INC

San Jacinto, CA

Jmar Builders Inc — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 17+ years experience.

View Profile📞 (951) 538 2917
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#9SUNSET CONSTRUCTION

San Jacinto, CA

Sunset Construction — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (951) 306 9250
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#10MCCOMAS PARKER

San Jacinto, CA

Mccomas Parker — licensed ADU contractor in San Jacinto, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (951) 837 7392
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💰 How Much Does an ADU Cost in San Jacinto?

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 Jacinto contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in San Jacinto

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