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ADU Builders & Contractors in Valley Center, CA

Building an ADU in Valley Center? You'll find 123 licensed contractors in the area, ready to help. Valley Center's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.

📊 ADU Quick Facts for Valley Center

Avg. Cost/sqft

$196-$371

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 123 ADU Contractors in Valley Center

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#1ROGACIANO SANCHEZ

Valley Center, CA

Rogaciano Sanchez — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (760) 851 4553
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#2JENKINS COMMERCIAL CONSTRUCTION INC

Valley Center, CA

Jenkins Commercial Construction Inc — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 11+ years experience.

View Profile📞 (760) 855 1269
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#3MULLEN GREGG CRAFTSMAN

Valley Center, CA

Mullen Gregg Craftsman — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 20+ years experience.

View Profile📞 (951) 347 1256
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#4FS CONSTRUCTION & REMODELING INNOVATIONS

Valley Center, CA

FS Construction & Remodeling Innovations — licensed ADU contractor in Valley Center, CA. Detached ADU construction.

View Profile📞 (760) 975 8261
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#5M C R CONSTRUCTORS

Valley Center, CA

M C R Constructors — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 35+ years experience.

View Profile📞 (760) 717 7905
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#6BOSWORTH SOLAR ELECTRICAL SYSTEMS

Valley Center, CA

Bosworth Solar Electrical Systems — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 30+ years experience.

View Profile📞 (760) 504 5668
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#7MB GENERAL ENGINEERING INC

Valley Center, CA

MB General Engineering Inc — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 9+ years experience.

View Profile📞 (760) 715 9670
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#8BIERLE RUSSELL CONSTRUCTION

Valley Center, CA

Bierle Russell Construction — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 26+ years experience.

View Profile📞 (760) 445 2460
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#9A DUIN - IT ROOFING & CONSTRUCTION

Valley Center, CA

A Duin - IT Roofing & Construction — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 16+ years experience.

View Profile📞 (760) 633 2488
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#10GJELTEMA CUSTOM CONSTRUCTION

Valley Center, CA

Gjeltema Custom Construction — licensed ADU contractor in Valley Center, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (616) 901 1303
View All 123 Contractors →

💰 How Much Does an ADU Cost in Valley Center?

Garage Conversion

$68,000 - $128,000

Converting existing garage to living space

Detached ADU

$146,000 - $321,000

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 Valley Center contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Valley Center

How much does it cost to build an ADU in Valley Center?▼
The average cost to build an ADU in Valley Center ranges from $146,000 to $321,000, or approximately $196 to $371 per square foot. Garage conversions typically cost $68,000 to $128,000.
How long does it take to get an ADU permit in Valley Center?▼
The ADU permit process in Valley Center 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 Valley Center?▼
In Valley Center, 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 Valley Center?▼
Valley Center 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 Valley Center?▼
No parking is required for ADUs in Valley Center 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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