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ADU Builders & Contractors in Northridge, CA

Building an ADU in Northridge? You'll find 300 licensed contractors in the area, ready to help. Northridge's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.

📊 ADU Quick Facts for Northridge

Avg. Cost/sqft

$208-$383

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 300 ADU Contractors in Northridge

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#1STYL'N CONSTRUCTION INC

Northridge, CA

Styl'N Construction Inc — licensed ADU contractor in Northridge, CA. Detached ADU construction. 23+ years experience.

View Profile📞 (818) 407 1327
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#2M J LICENSED ELECTRICAL CONTRACTOR

Northridge, CA

M J Licensed Electrical Contractor — licensed ADU contractor in Northridge, CA. Detached ADU construction. 47+ years experience.

View Profile📞 (818) 439 6380
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#3WOODMANSEE CONSTRUCTION

Northridge, CA

Woodmansee Construction — licensed ADU contractor in Northridge, CA. Detached ADU construction. 47+ years experience.

View Profile📞 (818) 421 9001
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#4SPADE X CONSTRUCTION

Northridge, CA

Spade X Construction — licensed ADU contractor in Northridge, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (818) 441 1561
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#5WEINSTOCK ALAN

Northridge, CA

Weinstock Alan — licensed ADU contractor in Northridge, CA. Detached ADU construction. 47+ years experience.

View Profile📞 (818) 497 8801
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#6BANUELOS AND SONS INC

Northridge, CA

Banuelos And Sons Inc — licensed ADU contractor in Northridge, CA. Detached ADU construction. 8+ years experience.

View Profile📞 (818) 554 6665
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#7AALEEST CONSTRUCTION

Northridge, CA

Aaleest Construction — licensed ADU contractor in Northridge, CA. Detached ADU construction.

View Profile📞 (512) 800 8575
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#8JANG JAMES

Northridge, CA

Jang James — licensed ADU contractor in Northridge, CA. Detached ADU construction. 19+ years experience.

View Profile📞 (213) 798 1198
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#9A E K CONSTRUCTION

Northridge, CA

A E K Construction — licensed ADU contractor in Northridge, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (818) 522 2261
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#10AVIS CONSTRUCTION

Northridge, CA

Avis Construction — licensed ADU contractor in Northridge, CA. Detached ADU construction. 24+ years experience.

View Profile📞 (818) 437 8187
View All 300 Contractors →

💰 How Much Does an ADU Cost in Northridge?

Garage Conversion

$74,000 - $134,000

Converting existing garage to living space

Detached ADU

$158,000 - $333,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,111 - $5,111

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Northridge

How much does it cost to build an ADU in Northridge?▼
The average cost to build an ADU in Northridge ranges from $158,000 to $333,000, or approximately $208 to $383 per square foot. Garage conversions typically cost $74,000 to $134,000.
How long does it take to get an ADU permit in Northridge?▼
The ADU permit process in Northridge 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 Northridge?▼
In Northridge, 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 Northridge?▼
Northridge 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 Northridge?▼
No parking is required for ADUs in Northridge 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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