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ADU Builders & Contractors in Hermosa Beach, CA

Building an ADU in Hermosa Beach? You'll find 68 licensed contractors in the area, ready to help. Hermosa Beach's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.

📊 ADU Quick Facts for Hermosa Beach

Avg. Cost/sqft

$202-$377

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 68 ADU Contractors in Hermosa Beach

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#1GARCIA GUILLERMO

Hermosa Beach, CA

Garcia Guillermo — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction. 33+ years experience.

View Profile📞 (310) 493 9848
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#2H D RESIDENTIAL CONSTRUCTION

Hermosa Beach, CA

H D Residential Construction — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction.

View Profile📞 (310) 863 4367
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#3FREE ENTERPRISE CONSTRUCTION

Hermosa Beach, CA

Free Enterprise Construction — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction. 37+ years experience.

View Profile📞 (310) 418 0212
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#4C I A DESIGN & CONSTRUCTION

Hermosa Beach, CA

C I A Design & Construction — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction. 47+ years experience.

View Profile📞 (310) 990 0673
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#5VILLA BLANCA HOMES INC

Hermosa Beach, CA

Villa Blanca Homes Inc — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction.

View Profile📞 (310) 600 4756
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#6MERAKI CONSTRUCTION

Hermosa Beach, CA

Meraki Construction — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction. 9+ years experience.

View Profile📞 (310) 896 6837
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#7ANDREWS GEORGE

Hermosa Beach, CA

Andrews George — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction.

View Profile📞 (714) 408 5058
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#8PACIFIC SOUTHWEST BUILDERS INC

Hermosa Beach, CA

Pacific Southwest Builders Inc — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction. 37+ years experience.

View Profile📞 (310) 379 7272
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#9C M C MANAGEMENT LTD

Hermosa Beach, CA

C M C Management Ltd — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (310) 925 8454
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#10HARAN MATTHEW JAMES

Hermosa Beach, CA

Haran Matthew James — licensed ADU contractor in Hermosa Beach, CA. Detached ADU construction. 5+ years experience.

View Profile📞 (248) 379 3926
View All 68 Contractors →

💰 How Much Does an ADU Cost in Hermosa Beach?

Garage Conversion

$71,000 - $131,000

Converting existing garage to living space

Detached ADU

$152,000 - $327,000

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 Hermosa Beach contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Hermosa Beach

How much does it cost to build an ADU in Hermosa Beach?▼
The average cost to build an ADU in Hermosa Beach ranges from $152,000 to $327,000, or approximately $202 to $377 per square foot. Garage conversions typically cost $71,000 to $131,000.
How long does it take to get an ADU permit in Hermosa Beach?▼
The ADU permit process in Hermosa Beach 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 Hermosa Beach?▼
In Hermosa 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 Hermosa Beach?▼
Hermosa 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 Hermosa Beach?▼
No parking is required for ADUs in Hermosa 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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