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ADU Builders & Contractors in Bonsall, CA

Bonsall, CA is home to 46 ADU contractors ready to help. From initial permits to final inspection, these local professionals know Bonsall's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for Bonsall

Avg. Cost/sqft

$196-$371

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 46 ADU Contractors in Bonsall

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#1COVETED CONSTRUCTION & CONSULTING

Bonsall, CA

Coveted Construction & Consulting — licensed ADU contractor in Bonsall, CA. Detached ADU construction. 5+ years experience.

View Profile📞 (858) 381 7200
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#2JA CONSTRUCTION

Bonsall, CA

JA Construction — licensed ADU contractor in Bonsall, CA. Detached ADU construction.

View Profile📞 (760) 791 8627
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#3REMODEL CONSTRUCTION & DESIGN INC

Bonsall, CA

Remodel Construction & Design Inc — licensed ADU contractor in Bonsall, CA. Detached ADU construction.

View Profile📞 (760) 421 9831
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#4POPPLETON AND SONS INC

Bonsall, CA

Poppleton And Sons Inc — licensed ADU contractor in Bonsall, CA. Detached ADU construction.

View Profile📞 (760) 936 3920
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#5PACIFIC VIEW BUILDERS

Bonsall, CA

Pacific View Builders — licensed ADU contractor in Bonsall, CA. Detached ADU construction. 27+ years experience.

View Profile📞 (760) 802 2307
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#6STANLEY CONSTRUCTION

Bonsall, CA

Stanley Construction — licensed ADU contractor in Bonsall, CA. Detached ADU construction. 13+ years experience.

View Profile📞 (760) 277 0114
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#7CHRIS BEUCLER

Bonsall, CA

Chris Beucler — licensed ADU contractor in Bonsall, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (760) 801 5811
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#8NATIONAL RENOVATION GROUP INC

Bonsall, CA

National Renovation Group Inc — licensed ADU contractor in Bonsall, CA. Detached ADU construction.

View Profile📞 (408) 483 9259
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#9D 3 CONSTRUCTION SERVICES INC

Bonsall, CA

D 3 Construction Services Inc — licensed ADU contractor in Bonsall, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (760) 707 9663
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#101ST CHOICE BACKFLOW AND CONSTRUCTION

Bonsall, CA

1st Choice Backflow And Construction — licensed ADU contractor in Bonsall, CA. Detached ADU construction. 19+ years experience.

View Profile📞 (760) 468 4026
View All 46 Contractors →

💰 How Much Does an ADU Cost in Bonsall?

Garage Conversion

$68,000 - $128,000

Converting existing garage to living space

Detached ADU

$146,000 - $321,000

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 Bonsall contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Bonsall

How much does it cost to build an ADU in Bonsall?▼
The average cost to build an ADU in Bonsall ranges from $146,000 to $321,000, or approximately $196 to $371 per square foot. Garage conversions typically cost $68,000 to $128,000.
How long does it take to get an ADU permit in Bonsall?▼
The ADU permit process in Bonsall 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 Bonsall?▼
In Bonsall, 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 Bonsall?▼
Bonsall 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 Bonsall?▼
No parking is required for ADUs in Bonsall 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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