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ADU Builders & Contractors in Arcadia, CA

With 237 verified ADU contractors serving Arcadia, 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 Arcadia

Avg. Cost/sqft

$195-$370

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 237 ADU Contractors in Arcadia

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#1TRAN THANH QUOC

Arcadia, CA

Tran Thanh Quoc — licensed ADU contractor in Arcadia, CA. Detached ADU construction. 10+ years experience.

View Profile📞 (626) 297 2829
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#2SHAH PANKAJ BABUBHAI

Arcadia, CA

Shah Pankaj Babubhai — licensed ADU contractor in Arcadia, CA. Detached ADU construction. 32+ years experience.

View Profile📞 (213) 503 8338
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#3HIGH PRESTIGE CONSTRUCTION

Arcadia, CA

High Prestige Construction — licensed ADU contractor in Arcadia, CA. Detached ADU construction.

View Profile📞 (626) 232 5562
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#4IMCQ INC

Arcadia, CA

Imcq Inc — licensed ADU contractor in Arcadia, CA. Detached ADU construction.

View Profile📞 (626) 898 3551
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#5HORIZON MECHANICAL CONTRACTORS OF CALIFORNIA

Arcadia, CA

Horizon Mechanical Contractors OF California — licensed ADU contractor in Arcadia, CA. Detached ADU construction. 24+ years experience.

View Profile📞 (626) 831 0733
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#6CHIEN CONSTRUCTION

Arcadia, CA

Chien Construction — licensed ADU contractor in Arcadia, CA. Detached ADU construction. 19+ years experience.

View Profile📞 (626) 733 8890
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#7JUNG G CONSTRUCTION

Arcadia, CA

Jung G Construction — licensed ADU contractor in Arcadia, CA. Detached ADU construction. 26+ years experience.

View Profile📞 (213) 590 0484
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#8GIANT BRAINS AT WORK INC

Arcadia, CA

Giant Brains AT Work Inc — licensed ADU contractor in Arcadia, CA. Detached ADU construction.

View Profile📞 (424) 202 1000
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#9RENEVIO HOME

Arcadia, CA

Renevio Home — licensed ADU contractor in Arcadia, CA. Detached ADU construction.

View Profile📞 (424) 457 9930
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#10EJ CONSTRUCTION AND DESIGN

Arcadia, CA

EJ Construction And Design — licensed ADU contractor in Arcadia, CA. Detached ADU construction.

View Profile📞 (626) 251 5099
View All 237 Contractors →

💰 How Much Does an ADU Cost in Arcadia?

Garage Conversion

$67,500 - $127,500

Converting existing garage to living space

Detached ADU

$145,000 - $320,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,114 - $5,114

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Arcadia

How much does it cost to build an ADU in Arcadia?▼
The average cost to build an ADU in Arcadia ranges from $145,000 to $320,000, or approximately $195 to $370 per square foot. Garage conversions typically cost $67,500 to $127,500.
How long does it take to get an ADU permit in Arcadia?▼
The ADU permit process in Arcadia 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 Arcadia?▼
In Arcadia, 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 Arcadia?▼
Arcadia 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 Arcadia?▼
No parking is required for ADUs in Arcadia 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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