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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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#1ARGUBRIGHT CONSTRUCTION INC

Northridge, CA

Argubright Construction Inc — licensed ADU contractor in Northridge, CA. Detached ADU construction. 39+ years experience.

View Profile📞 (818) 402 8869
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#2TOPLINE RESTORATION INC

Northridge, CA

Topline Restoration Inc — licensed ADU contractor in Northridge, CA. Detached ADU construction. 11+ years experience.

View Profile📞 (818) 488 1089
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#3CUT ABOVE FINE WOODWORKING & GENERAL CONSTRUCTION A

Northridge, CA

Cut Above Fine Woodworking & General Construction A — licensed ADU contractor in Northridge, CA. Detached ADU construction. 8+ years experience.

View Profile📞 (818) 836 2744
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#4RANBAY CONSTRUCTION CORPORATION

Northridge, CA

Ranbay Construction Corporation — licensed ADU contractor in Northridge, CA. Detached ADU construction. 17+ years experience.

View Profile📞 (818) 390 4727
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#5IPCHYAN LEVON GENERAL CONSTRUCTION CO

Northridge, CA

Ipchyan Levon General Construction CO — licensed ADU contractor in Northridge, CA. Detached ADU construction. 34+ years experience.

View Profile📞 (818) 422 6151
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#6ALEPH BUILDING CONSTRUCTION

Northridge, CA

Aleph Building Construction — licensed ADU contractor in Northridge, CA. Detached ADU construction. 29+ years experience.

View Profile📞 (818) 639 2818
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#7CYBER CONSTRUCTION INC

Northridge, CA

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

View Profile📞 (818) 927 5636
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#8SMART SWIM POOL CONSTRUCTION INC

Northridge, CA

Smart Swim Pool Construction Inc — licensed ADU contractor in Northridge, CA. Detached ADU construction.

View Profile📞 (833) 767 8796
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#9ATARIS CONSTRUCTION

Northridge, CA

Ataris Construction — licensed ADU contractor in Northridge, CA. Detached ADU construction. 28+ years experience.

View Profile📞 (818) 802 6682
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#10RUSSELL CONSTRUCTION COMPANY

Northridge, CA

Russell Construction Company — licensed ADU contractor in Northridge, CA. Detached ADU construction. 46+ years experience.

View Profile📞 (818) 996 7722
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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