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ADU Builders & Contractors in Del Mar, CA

With 57 verified ADU contractors serving Del Mar, 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 Del Mar

Avg. Cost/sqft

$198-$373

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 57 ADU Contractors in Del Mar

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#1VINT KEVIN J MASONRY

Del Mar, CA

Vint Kevin J Masonry — licensed ADU contractor in Del Mar, CA. Detached ADU construction. 47+ years experience.

View Profile📞 (858) 205 6719
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#2J B W CONSTRUCTION

Del Mar, CA

J B W Construction — licensed ADU contractor in Del Mar, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (858) 352 6300
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#3DALEY CUSTOM HOMES

Del Mar, CA

Daley Custom Homes — licensed ADU contractor in Del Mar, CA. Detached ADU construction. 11+ years experience.

View Profile📞 (858) 216 1775
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#4BARTON + BARTON CONSTRUCTION LLC

Del Mar, CA

Barton + Barton Construction Llc — licensed ADU contractor in Del Mar, CA. Detached ADU construction.

View Profile📞 (858) 847 2715
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#5LAIRD RALPH J

Del Mar, CA

Laird Ralph J — licensed ADU contractor in Del Mar, CA. Detached ADU construction. 42+ years experience.

View Profile📞 (909) 241 4127
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#6TIFFANY GROUP INC

Del Mar, CA

Tiffany Group Inc — licensed ADU contractor in Del Mar, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (858) 866 8666
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#7MADERA CONSTRUCTION

Del Mar, CA

Madera Construction — licensed ADU contractor in Del Mar, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (858) 735 0181
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#8WEISE CONSTRUCTION

Del Mar, CA

Weise Construction — licensed ADU contractor in Del Mar, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (619) 840 5857
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#9FROEHLICH CONSTRUCTION

Del Mar, CA

Froehlich Construction — licensed ADU contractor in Del Mar, CA. Detached ADU construction.

View Profile📞 (858) 254 8612
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#10YOUNG MICHAEL JAMES

Del Mar, CA

Young Michael James — licensed ADU contractor in Del Mar, CA. Detached ADU construction. 44+ years experience.

View Profile📞 (858) 395 7828
View All 57 Contractors →

💰 How Much Does an ADU Cost in Del Mar?

Garage Conversion

$69,000 - $129,000

Converting existing garage to living space

Detached ADU

$148,000 - $323,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,101 - $5,101

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Del Mar

How much does it cost to build an ADU in Del Mar?▼
The average cost to build an ADU in Del Mar ranges from $148,000 to $323,000, or approximately $198 to $373 per square foot. Garage conversions typically cost $69,000 to $129,000.
How long does it take to get an ADU permit in Del Mar?▼
The ADU permit process in Del Mar 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 Del Mar?▼
In Del Mar, 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 Del Mar?▼
Del Mar 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 Del Mar?▼
No parking is required for ADUs in Del Mar 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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