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ADU Builders & Contractors in Long Beach, CA

Long Beach is one of LA County's most ADU-friendly cities, with permit fees at $3,000–$7,000 depending on unit type. ADUs over 750 sq ft trigger development impact fees, so many homeowners size units just below this threshold. Construction costs run $250–$400/sq ft, with garage conversions from $100,000. The city's port-driven economy fuels consistent rental demand. An ADU contractor in Long Beach helps you maximize returns in this active market.

📊 ADU Quick Facts for Long Beach

Avg. Cost/sqft

$300-$550

Permit Timeline

4-12 weeks

Max Size

1200 sqft

Setbacks

4ft sides

View Long Beach Planning Department →

Top 645 ADU Contractors in Long Beach

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#1ONSITEMIKE AND THE BUILDERS INC

Long Beach, CA

Onsitemike And The Builders Inc — licensed ADU contractor in Long Beach, CA. Detached ADU construction.

View Profile📞 (562) 746 2959
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#2JDM BUILDERS GROUP INCORPORATED

Long Beach, CA

Jdm Builders Group Incorporated — licensed ADU contractor in Long Beach, CA. Detached ADU construction.

View Profile📞 (562) 481 6810
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#3SAGE CONSTRUCTION

Long Beach, CA

Sage Construction — licensed ADU contractor in Long Beach, CA. Detached ADU construction. 10+ years experience.

View Profile📞 (562) 983 6700
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#4WEST COAST BUILDING AND CONSULTING INC

Long Beach, CA

West Coast Building And Consulting Inc — licensed ADU contractor in Long Beach, CA. Detached ADU construction.

View Profile📞 (619) 339 2966
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#5OHKA CONSTRUCTION INC

Long Beach, CA

Ohka Construction Inc — licensed ADU contractor in Long Beach, CA. Detached ADU construction.

View Profile📞 (424) 217 9192
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#6LEGENDZ REMODELING INC

Long Beach, CA

Legendz Remodeling Inc — licensed ADU contractor in Long Beach, CA. Detached ADU construction.

View Profile📞 (760) 812 9038
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#7NEELY J BLAINE

Long Beach, CA

Neely J Blaine — licensed ADU contractor in Long Beach, CA. Detached ADU construction. 30+ years experience.

View Profile📞 (562) 254 2455
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#8CHAMBERS RANDY

Long Beach, CA

Chambers Randy — licensed ADU contractor in Long Beach, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (442) 800 5737
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#9COMSTRUCT INC

Long Beach, CA

Comstruct Inc — licensed ADU contractor in Long Beach, CA. Detached ADU construction. 33+ years experience.

View Profile📞 (619) 892 1210
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#10LA PORTE ROGER RICHER

Long Beach, CA

LA Porte Roger Richer — licensed ADU contractor in Long Beach, CA. Detached ADU construction. 31+ years experience.

View Profile📞 (562) 673 1315
View All 645 Contractors →

💰 How Much Does an ADU Cost in Long Beach?

Garage Conversion

$75,000 - $190,000

Converting existing garage to living space

Detached ADU

$150,000 - $380,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$3,000 - $12,000

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Long Beach

How much does it cost to build an ADU in Long Beach?▼
The average cost to build an ADU in Long Beach ranges from $150,000 to $380,000, or approximately $300 to $550 per square foot. Garage conversions typically cost $75,000 to $190,000.
How long does it take to get an ADU permit in Long Beach?▼
The ADU permit process in Long Beach typically takes 4 to 12 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 Long Beach?▼
In Long Beach, 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 Long Beach?▼
Long Beach 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 Long Beach?▼
No parking is required for ADUs in Long Beach 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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