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ADU Builders & Contractors in Pasadena, CA

With 376 verified ADU contractors serving Pasadena, 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 Pasadena

Avg. Cost/sqft

$190-$365

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 376 ADU Contractors in Pasadena

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#1SGS DEVELOPMENT INC

Pasadena, CA

Sgs Development Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction.

View Profile📞 (213) 910 1072
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#2KLEEN CONSTRUCTION CORPORATION

Pasadena, CA

Kleen Construction Corporation — licensed ADU contractor in Pasadena, CA. Detached ADU construction.

View Profile📞 (626) 817 3186
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#3BURCH J ALDRIC CONSTRUCTION

Pasadena, CA

Burch J Aldric Construction — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 20+ years experience.

View Profile📞 (626) 487 2768
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#4DAHLIN PAUL

Pasadena, CA

Dahlin Paul — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 10+ years experience.

View Profile📞 (323) 217 3580
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#5RJB BUILDERS INC

Pasadena, CA

Rjb Builders Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 12+ years experience.

View Profile📞 (626) 788 3800
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#6ONYX BUILDER

Pasadena, CA

Onyx Builder — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 15+ years experience.

View Profile📞 (626) 628 6488
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#7H D E Z BUILDERS INC

Pasadena, CA

H D E Z Builders Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 8+ years experience.

View Profile📞 (626) 230 4876
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#8M A D F CONSTRUCTION INC

Pasadena, CA

M A D F Construction Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 9+ years experience.

View Profile📞 (213) 880 6233
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#9ZIMMITTI ANTHONY

Pasadena, CA

Zimmitti Anthony — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (818) 421 3133
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#10ANDERSEN CONSTRUCTION

Pasadena, CA

Andersen Construction — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (626) 376 3554
View All 376 Contractors →

💰 How Much Does an ADU Cost in Pasadena?

Garage Conversion

$65,000 - $125,000

Converting existing garage to living space

Detached ADU

$140,000 - $315,000

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 Pasadena contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Pasadena

How much does it cost to build an ADU in Pasadena?▼
The average cost to build an ADU in Pasadena ranges from $140,000 to $315,000, or approximately $190 to $365 per square foot. Garage conversions typically cost $65,000 to $125,000.
How long does it take to get an ADU permit in Pasadena?▼
The ADU permit process in Pasadena 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 Pasadena?▼
In Pasadena, 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 Pasadena?▼
Pasadena 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 Pasadena?▼
No parking is required for ADUs in Pasadena 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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