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ADU Builders & Contractors in Jamul, CA

With 73 verified ADU contractors serving Jamul, CA, homeowners have plenty of options for their accessory dwelling unit project. Local contractors ready to help specialize in everything from design-build to permit navigation.

📊 ADU Quick Facts for Jamul

Avg. Cost/sqft

$204-$379

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 73 ADU Contractors in Jamul

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#1COSS R DRYWALL

Jamul, CA

Coss R Drywall — licensed ADU contractor in Jamul, CA. Detached ADU construction. 5+ years experience.

View Profile📞 (619) 778 3353
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#2STACK CONTRACTING

Jamul, CA

Stack Contracting — licensed ADU contractor in Jamul, CA. Detached ADU construction.

View Profile📞 (619) 535 9714
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#3SLEIGHT CONSULTANTS INC

Jamul, CA

Sleight Consultants Inc — licensed ADU contractor in Jamul, CA. Detached ADU construction. 37+ years experience.

View Profile📞 (619) 447 0244
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#4J K & J INCORPORATED

Jamul, CA

J K & J Incorporated — licensed ADU contractor in Jamul, CA. Detached ADU construction. 15+ years experience.

View Profile📞 (619) 520 0580
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#5GOLDEN PRO CONSTRUCTION INC

Jamul, CA

Golden Pro Construction Inc — licensed ADU contractor in Jamul, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (619) 240 2325
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#6JJ&D CONSTRUCTION INC

Jamul, CA

JJ&D Construction Inc — licensed ADU contractor in Jamul, CA. Detached ADU construction.

View Profile📞 (203) 913 5635
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#7G M D COMPANY

Jamul, CA

G M D Company — licensed ADU contractor in Jamul, CA. Detached ADU construction. 43+ years experience.

View Profile📞 (619) 244 9380
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#8HARLAN CONSTRUCTION

Jamul, CA

Harlan Construction — licensed ADU contractor in Jamul, CA. Detached ADU construction. 41+ years experience.

View Profile📞 (619) 669 3600
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#9ABBOTT WELCOME CONSTRUCTION

Jamul, CA

Abbott Welcome Construction — licensed ADU contractor in Jamul, CA. Detached ADU construction. 27+ years experience.

View Profile📞 (619) 985 7302
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#10TRIPPLE R CONCRETE SOLUTIONS LLC

Jamul, CA

Tripple R Concrete Solutions Llc — licensed ADU contractor in Jamul, CA. Detached ADU construction. 19+ years experience.

View Profile📞 (619) 871 4652
View All 73 Contractors →

💰 How Much Does an ADU Cost in Jamul?

Garage Conversion

$72,000 - $132,000

Converting existing garage to living space

Detached ADU

$154,000 - $329,000

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 Jamul contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Jamul

How much does it cost to build an ADU in Jamul?▼
The average cost to build an ADU in Jamul ranges from $154,000 to $329,000, or approximately $204 to $379 per square foot. Garage conversions typically cost $72,000 to $132,000.
How long does it take to get an ADU permit in Jamul?▼
The ADU permit process in Jamul 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 Jamul?▼
In Jamul, 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 Jamul?▼
Jamul 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 Jamul?▼
No parking is required for ADUs in Jamul 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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