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ADU Builders & Contractors in Fair Oaks, CA

Fair Oaks, CA homeowners looking to build an ADU have 212 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 Fair Oaks starts here.

📊 ADU Quick Facts for Fair Oaks

Avg. Cost/sqft

$200-$375

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 212 ADU Contractors in Fair Oaks

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#1DUNCAN HOME SERVICES

Fair Oaks, CA

Duncan Home Services — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (916) 390 8577
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#2ABREU CONSTRUCTION

Fair Oaks, CA

Abreu Construction — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (916) 412 7065
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#3BARTELS HENRY VINCENT

Fair Oaks, CA

Bartels Henry Vincent — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 33+ years experience.

View Profile📞 (916) 989 4770
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#4LAMBERT CONSTRUCTION

Fair Oaks, CA

Lambert Construction — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 41+ years experience.

View Profile📞 (916) 225 1978
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#5CIOTIC EGOR

Fair Oaks, CA

Ciotic Egor — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (916) 799 1734
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#6REDFERN CONST

Fair Oaks, CA

Redfern Const — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 34+ years experience.

View Profile📞 (916) 410 1672
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#7ALLSTATE REAL ESTATE SERVICES CONSTRUCTION

Fair Oaks, CA

Allstate Real Estate Services Construction — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 41+ years experience.

View Profile📞 (916) 934 2434
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#8MITTLEIDER ROY

Fair Oaks, CA

Mittleider Roy — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (530) 919 6310
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#9HILINE BUILDERS INC

Fair Oaks, CA

Hiline Builders Inc — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 41+ years experience.

View Profile📞 (916) 612 1704
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#10FERNANDEZ CONSTRUCTION AND ENGINEERING CO INC

Fair Oaks, CA

Fernandez Construction And Engineering CO Inc — licensed ADU contractor in Fair Oaks, CA. Detached ADU construction. 17+ years experience.

View Profile📞 (916) 826 6834
View All 212 Contractors →

💰 How Much Does an ADU Cost in Fair Oaks?

Garage Conversion

$70,000 - $130,000

Converting existing garage to living space

Detached ADU

$150,000 - $325,000

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 Fair Oaks contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Fair Oaks

How much does it cost to build an ADU in Fair Oaks?▼
The average cost to build an ADU in Fair Oaks ranges from $150,000 to $325,000, or approximately $200 to $375 per square foot. Garage conversions typically cost $70,000 to $130,000.
How long does it take to get an ADU permit in Fair Oaks?▼
The ADU permit process in Fair Oaks 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 Fair Oaks?▼
In Fair Oaks, 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 Fair Oaks?▼
Fair Oaks 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 Fair Oaks?▼
No parking is required for ADUs in Fair Oaks 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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