ADU Contractors
Dashboard

ADU Builders & Contractors in Hawthorne, CA

Hawthorne, CA homeowners looking to build an ADU have 113 licensed contractors to choose from, ready to help. Whether you're planning a garage conversion, detached ADU, or junior ADU, finding the right contractor in Hawthorne starts here.

📊 ADU Quick Facts for Hawthorne

Avg. Cost/sqft

$202-$377

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 113 ADU Contractors in Hawthorne

🏗️
#1DAMIAN CONSTRUCTION

Hawthorne, CA

Damian Construction — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 39+ years experience.

View Profile📞 (817) 689 7350
🏗️
#2SHOFANI CONSTRUCTION GROUP INC

Hawthorne, CA

Shofani Construction Group Inc — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 5+ years experience.

View Profile📞 (310) 956 5708
🏗️
#3KORE DEVELOPMENT

Hawthorne, CA

Kore Development — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (310) 713 3123
🏗️
#4R S C CONSTRUCTION INC

Hawthorne, CA

R S C Construction Inc — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (310) 678 7679
🏗️
#5CHAMPION CONSTRUCTION COMPANY

Hawthorne, CA

Champion Construction Company — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (310) 658 4435
🏗️
#6MILLS DANIEL A

Hawthorne, CA

Mills Daniel A — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (310) 951 5881
🏗️
#7BLACKFOX

Hawthorne, CA

Blackfox — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (310) 753 9126
🏗️
#8CASTILLO CONTRACTING GROUP INC

Hawthorne, CA

Castillo Contracting Group Inc — licensed ADU contractor in Hawthorne, CA. Detached ADU construction.

View Profile📞 (310) 415 6373
🏗️
#9TOUGH BUILDERS

Hawthorne, CA

Tough Builders — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (818) 421 5926
🏗️
#10SARAVIA CONSTRUCTION

Hawthorne, CA

Saravia Construction — licensed ADU contractor in Hawthorne, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (310) 956 8511
View All 113 Contractors →

💰 How Much Does an ADU Cost in Hawthorne?

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

$1,097 - $5,097

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Hawthorne

How much does it cost to build an ADU in Hawthorne?▼
The average cost to build an ADU in Hawthorne 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 Hawthorne?▼
The ADU permit process in Hawthorne 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 Hawthorne?▼
In Hawthorne, 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 Hawthorne?▼
Hawthorne 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 Hawthorne?▼
No parking is required for ADUs in Hawthorne 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)

Ready to Build Your ADU in Hawthorne?

Get free quotes from top-rated local contractors

Find Contractors Now
← View all contractors in California