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ADU Builders & Contractors in Chino Hills, CA

With 182 verified ADU contractors serving Chino Hills, CA, homeowners have plenty of options for their accessory dwelling unit project. Local contractors ready to help specialize in everything from design-build to permit navigation.

📊 ADU Quick Facts for Chino Hills

Avg. Cost/sqft

$197-$372

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 182 ADU Contractors in Chino Hills

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#1ELITE OUTDOOR CONSTRUCTION

Chino Hills, CA

Elite Outdoor Construction — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 8+ years experience.

View Profile📞 (909) 472 9837
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#2TRI - NET CONSTRUCTION

Chino Hills, CA

Tri - Net Construction — licensed ADU contractor in Chino Hills, CA. Detached ADU construction.

View Profile📞 (213) 318 1812
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#3CSI GENERAL CONTRACTING INC

Chino Hills, CA

Csi General Contracting Inc — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 10+ years experience.

View Profile📞 (909) 636 8619
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#4ROPER MIKE CONSTRUCTION

Chino Hills, CA

Roper Mike Construction — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 17+ years experience.

View Profile📞 (909) 342 0605
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#5BRENES PRO BUILDING

Chino Hills, CA

Brenes Pro Building — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (626) 485 9023
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#6GALINDO RAY

Chino Hills, CA

Galindo Ray — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 11+ years experience.

View Profile📞 (626) 931 9526
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#7SMITH JAMES DOUGLAS

Chino Hills, CA

Smith James Douglas — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 35+ years experience.

View Profile📞 (714) 904 0238
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#8HEART2SERVE

Chino Hills, CA

Heart2serve — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 5+ years experience.

View Profile📞 (909) 597 1892
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#9LOHR RENE

Chino Hills, CA

Lohr Rene — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 37+ years experience.

View Profile📞 (909) 597 0241
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#10TERRIQUEZ JAVIER

Chino Hills, CA

Terriquez Javier — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (909) 636 8619
View All 182 Contractors →

💰 How Much Does an ADU Cost in Chino Hills?

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

$1,104 - $5,104

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Chino Hills

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