What is the maximum ADU size allowed in Twin Peaks?

Detached ADUs in Twin Peaks can be up to 1200 square feet.

ADU Builders & Contractors in Twin Peaks, CA

Q: How much does it cost to build an ADU in Twin Peaks?

The average cost ranges from $144,000 to $319,000, or $194-369 per square foot.

Q: How long does it take to get an ADU permit in Twin Peaks?

The permit process typically takes 60 to 120 weeks in Twin Peaks.

Building an ADU in Twin Peaks? You'll find 17 licensed contractors in the area, ready to help. Twin Peaks's ADU market continues to grow as homeowners invest in additional living space, rental income, and multi-generational housing.

📊 ADU Quick Facts for Twin Peaks

Avg. Cost/sqft

$194-$369

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 17 ADU Contractors in Twin Peaks

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#1SHOREY MATT CONSTRUCTION

Twin Peaks, CA

Shorey Matt Construction — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction. 18+ years experience.

View Profile 📞 (209) 612 3387

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#2EXTREME ELEGANCE PATIOS

Twin Peaks, CA

Extreme Elegance Patios — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction. 5+ years experience.

View Profile 📞 (909) 554 3911

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#3MUD WIZ & CUSTOM FRAMING INC

Twin Peaks, CA

Mud Wiz & Custom Framing Inc — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction. 17+ years experience.

View Profile 📞 (909) 436 9749

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#4FZ CONSTRUCTION

Twin Peaks, CA

FZ Construction — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction.

View Profile 📞 (909) 273 7792

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#5FLO CONSTRUCTION LLC

Twin Peaks, CA

Flo Construction Llc — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction. 9+ years experience.

View Profile 📞 (909) 273 3772

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#6MARTINEZ RUBEN CONSTRUCTION

Twin Peaks, CA

Martinez Ruben Construction — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction. 7+ years experience.

View Profile 📞 (951) 250 9875

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#7RODARTE OSVALDO

Twin Peaks, CA

Rodarte Osvaldo — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction.

View Profile 📞 (909) 567 8342

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#8DOWNEY CONSTRUCTION

Twin Peaks, CA

Downey Construction — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction.

View Profile 📞 (909) 994 6912

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#9COFFEY NICHOLAS E

Twin Peaks, CA

Coffey Nicholas E — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction. 18+ years experience.

View Profile 📞 (909) 754 6554

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#10SERRATO JUAN CARLOS CONSTRUCTION

Twin Peaks, CA

Serrato Juan Carlos Construction — licensed ADU contractor in Twin Peaks, CA. Detached ADU construction. 11+ years experience.

View Profile 📞 (909) 725 7195

View All 17 Contractors →

💰 How Much Does an ADU Cost in Twin Peaks?

Garage Conversion

$67,000 - $127,000

Converting existing garage to living space

Detached ADU

$144,000 - $319,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,119 - $5,119

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Twin Peaks

How much does it cost to build an ADU in Twin Peaks?▼

The average cost to build an ADU in Twin Peaks ranges from $144,000 to $319,000, or approximately $194 to $369 per square foot. Garage conversions typically cost $67,000 to $127,000.

How long does it take to get an ADU permit in Twin Peaks?▼

The ADU permit process in Twin Peaks 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 Twin Peaks?▼

In Twin Peaks, 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 Twin Peaks?▼

Twin Peaks 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 Twin Peaks?▼

No parking is required for ADUs in Twin Peaks 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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