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ADU Builders & Contractors in National City, CA

National City, CA is home to 119 ADU contractors ready to help. From initial permits to final inspection, these local professionals know National City's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for National City

Avg. Cost/sqft

$208-$383

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 119 ADU Contractors in National City

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#1RESERVA CONSTRUCTION

National City, CA

Reserva Construction — licensed ADU contractor in National City, CA. Detached ADU construction.

View Profile📞 (619) 860 6207
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#2NEW HOME CONSTRUCTION & DESIGN

National City, CA

New Home Construction & Design — licensed ADU contractor in National City, CA. Detached ADU construction.

View Profile📞 (619) 372 4472
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#3WESCO CONSTRUCTION

National City, CA

Wesco Construction — licensed ADU contractor in National City, CA. Detached ADU construction. 8+ years experience.

View Profile📞 (760) 805 4250
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#4CORNERSTONE DESIGN & BUILD

National City, CA

Cornerstone Design & Build — licensed ADU contractor in National City, CA. Detached ADU construction.

View Profile📞 (619) 851 7478
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#5INNOVATE CONSTRUCTION REMODELING INC

National City, CA

Innovate Construction Remodeling Inc — licensed ADU contractor in National City, CA. Detached ADU construction. 9+ years experience.

View Profile📞 (619) 250 4530
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#6D S CONSTRUCTION

National City, CA

D S Construction — licensed ADU contractor in National City, CA. Detached ADU construction. 26+ years experience.

View Profile📞 (619) 250 7695
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#7DCC CONSTRUCTION COMPANY INC

National City, CA

Dcc Construction Company Inc — licensed ADU contractor in National City, CA. Detached ADU construction.

View Profile📞 (619) 669 8981
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#8CAROLINO AND SON ENGINEERING CORPORATION

National City, CA

Carolino And Son Engineering Corporation — licensed ADU contractor in National City, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (619) 434 9200
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#9MYSHYNIUK LARRY O GENERAL CONTRACTOR

National City, CA

Myshyniuk Larry O General Contractor — licensed ADU contractor in National City, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (619) 752 5011
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#10BORING BROS CONSTRUCTION CORP

National City, CA

Boring Bros Construction Corp — licensed ADU contractor in National City, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (949) 283 3418
View All 119 Contractors →

💰 How Much Does an ADU Cost in National City?

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

$1,097 - $5,097

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in National City

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

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