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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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#1M R S CONSTRUCTION

Chino Hills, CA

M R S Construction — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 13+ years experience.

View Profile📞 (323) 855 4106
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#2PREMIUM CONSTRUCTION INC

Chino Hills, CA

Premium Construction Inc — licensed ADU contractor in Chino Hills, CA. Detached ADU construction.

View Profile📞 (909) 771 1434
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#3ALCALA CONSTRUCTION SERVICES

Chino Hills, CA

Alcala Construction Services — licensed ADU contractor in Chino Hills, CA. Detached ADU construction.

View Profile📞 (909) 318 0060
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#4HOP CON

Chino Hills, CA

Hop Con — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 30+ years experience.

View Profile📞 (909) 597 6381
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#5PRO CHOICE DECOR

Chino Hills, CA

Pro Choice Decor — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 17+ years experience.

View Profile📞 (909) 732 8443
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#6CHU MICHAEL

Chino Hills, CA

Chu Michael — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 9+ years experience.

View Profile📞 (626) 757 1605
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#7MAESTRO CONSTRUCTION INC

Chino Hills, CA

Maestro Construction Inc — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (626) 699 5599
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#8RHINO DEVELOPMENTS

Chino Hills, CA

Rhino Developments — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 28+ years experience.

View Profile📞 (909) 606 6909
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#9LUAN'S CONSTRUCTION INC

Chino Hills, CA

Luan'S Construction Inc — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 23+ years experience.

View Profile📞 (626) 688 4048
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#10WANG PAOCHIH

Chino Hills, CA

Wang Paochih — licensed ADU contractor in Chino Hills, CA. Detached ADU construction. 12+ years experience.

View Profile📞 (909) 263 2576
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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