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ADU Builders & Contractors in Calistoga, CA

Calistoga, CA is home to 25 ADU contractors ready to help. From initial permits to final inspection, these local professionals know Calistoga's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for Calistoga

Avg. Cost/sqft

$197-$372

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 25 ADU Contractors in Calistoga

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#1UNIQUE CONSTRUCTION

Calistoga, CA

Unique Construction — licensed ADU contractor in Calistoga, CA. Detached ADU construction.

View Profile📞 (707) 245 2411
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#2PEGRAM ROBERT DEAN

Calistoga, CA

Pegram Robert Dean — licensed ADU contractor in Calistoga, CA. Detached ADU construction. 36+ years experience.

View Profile📞 (707) 695 4615
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#3FENNEN CONSTRUCTION

Calistoga, CA

Fennen Construction — licensed ADU contractor in Calistoga, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (707) 953 3680
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#4DUNCAN & COMPANY

Calistoga, CA

Duncan & Company — licensed ADU contractor in Calistoga, CA. Detached ADU construction. 28+ years experience.

View Profile📞 (707) 755 1000
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#5TORNEBY CONSTRUCTION

Calistoga, CA

Torneby Construction — licensed ADU contractor in Calistoga, CA. Detached ADU construction.

View Profile📞 (415) 624 7612
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#6SONOMA MOUNTAIN HOMES INC

Calistoga, CA

Sonoma Mountain Homes Inc — licensed ADU contractor in Calistoga, CA. Detached ADU construction.

View Profile📞 (510) 334 2232
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#7CRABBE JOHN J

Calistoga, CA

Crabbe John J — licensed ADU contractor in Calistoga, CA. Detached ADU construction. 37+ years experience.

View Profile📞 (415) 350 2442
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#8QUAST MICHAEL

Calistoga, CA

Quast Michael — licensed ADU contractor in Calistoga, CA. Detached ADU construction. 56+ years experience.

View Profile📞 (707) 737 5042
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#9DRESCHER KENT BUILDER INC

Calistoga, CA

Drescher Kent Builder Inc — licensed ADU contractor in Calistoga, CA. Detached ADU construction. 46+ years experience.

View Profile📞 (707) 942 2234
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#10HEUN PACIFIC CONSTRUCTION LLC

Calistoga, CA

Heun Pacific Construction Llc — licensed ADU contractor in Calistoga, CA. Detached ADU construction. 11+ years experience.

View Profile📞 (707) 303 0904
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💰 How Much Does an ADU Cost in Calistoga?

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 Calistoga contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Calistoga

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