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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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#1MILKYWAY CONSTRUCTION INC

Pasadena, CA

Milkyway Construction Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 5+ years experience.

View Profile📞 (626) 626 5595
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#2CAL GROUP CONSTRUCTION INC

Pasadena, CA

Cal Group Construction Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction.

View Profile📞 (626) 375 0901
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#3KAKISH JOSEPH LOFTI

Pasadena, CA

Kakish Joseph Lofti — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (626) 795 6099
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#4CITY CONSTRUCTORS INC

Pasadena, CA

City Constructors Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (213) 628 8882
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#5YAO KELVIN X

Pasadena, CA

Yao Kelvin X — licensed ADU contractor in Pasadena, CA. Detached ADU construction.

View Profile📞 (626) 215 7999
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#6LAUN R J CONSTRUCTION CORPORATION

Pasadena, CA

Laun R J Construction Corporation — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 42+ years experience.

View Profile📞 (626) 351 3398
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#7LLOYD PAUL H CONSTRUCTION INC

Pasadena, CA

Lloyd Paul H Construction Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 26+ years experience.

View Profile📞 (626) 644 7910
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#8JOHNNY RANDALL BUILDING

Pasadena, CA

Johnny Randall Building — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 27+ years experience.

View Profile📞 (626) 710 7428
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#9SITZ TEACHER LORI

Pasadena, CA

Sitz Teacher Lori — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (310) 503 9504
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#10G - ROD CONSTRUCTION INC

Pasadena, CA

G - Rod Construction Inc — licensed ADU contractor in Pasadena, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (626) 524 7900
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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