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ADU Builders & Contractors in Walnut Grove, CA

Building an ADU in Walnut Grove? You'll find 11 licensed contractors in the area, ready to help. Walnut Grove's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.

📊 ADU Quick Facts for Walnut Grove

Avg. Cost/sqft

$197-$372

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 11 ADU Contractors in Walnut Grove

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#1DON BLOXSOM

Walnut Grove, CA

Don Bloxsom — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (925) 494 8706
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#2MORAIS CONSTRUCTION

Walnut Grove, CA

Morais Construction — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 11+ years experience.

View Profile📞 (916) 776 4447
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#3KELLOGG RICK CONST

Walnut Grove, CA

Kellogg Rick Const — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 19+ years experience.

View Profile📞 (916) 879 3547
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#4HOGLAND JAMES A

Walnut Grove, CA

Hogland James A — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 29+ years experience.

View Profile📞 (530) 219 0987
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#5ADVANTAGE WALK IN TUBBS & STAIRLIFTS

Walnut Grove, CA

Advantage Walk IN Tubbs & Stairlifts — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 26+ years experience.

View Profile📞 (951) 536 7155
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#6THE GROVE CONSTRUCTION

Walnut Grove, CA

The Grove Construction — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (916) 685 8800
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#7COLOR PROS

Walnut Grove, CA

Color Pros — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 29+ years experience.

View Profile📞 (916) 455 6400
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#8CAPITOL CONTRACTED INTERIORS

Walnut Grove, CA

Capitol Contracted Interiors — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 30+ years experience.

View Profile📞 (209) 993 7530
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#9ADVANTAGE TOTAL PROTECTION INC

Walnut Grove, CA

Advantage Total Protection Inc — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 15+ years experience.

View Profile📞 (888) 646 1559
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#10FRAME TO FINISH CONSTRUCTION LLC

Walnut Grove, CA

Frame TO Finish Construction Llc — licensed ADU contractor in Walnut Grove, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (916) 825 1035
View All 11 Contractors →

💰 How Much Does an ADU Cost in Walnut Grove?

Garage Conversion

$68,500 - $128,500

Converting existing garage to living space

Detached ADU

$147,000 - $322,000

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 Walnut Grove contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Walnut Grove

How much does it cost to build an ADU in Walnut Grove?▼
The average cost to build an ADU in Walnut Grove ranges from $147,000 to $322,000, or approximately $197 to $372 per square foot. Garage conversions typically cost $68,500 to $128,500.
How long does it take to get an ADU permit in Walnut Grove?▼
The ADU permit process in Walnut Grove 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 Walnut Grove?▼
In Walnut Grove, 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 Walnut Grove?▼
Walnut Grove 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 Walnut Grove?▼
No parking is required for ADUs in Walnut Grove 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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