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ADU Builders & Contractors in Etiwanda, CA

With 2 verified ADU contractors serving Etiwanda, 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 Etiwanda

Avg. Cost/sqft

$199-$374

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 2 ADU Contractors in Etiwanda

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#1SERVPRO OF S RANCHO CUCAMONGA RANCHO MBA BUILDERS

Etiwanda, CA

Servpro OF S Rancho Cucamonga Rancho Mba Builders — licensed ADU contractor in Etiwanda, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (909) 758 0189
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#2HUTCHISON RYAN

Etiwanda, CA

Hutchison Ryan — licensed ADU contractor in Etiwanda, CA. Detached ADU construction. 8+ years experience.

View Profile📞 (626) 232 2570

💰 How Much Does an ADU Cost in Etiwanda?

Garage Conversion

$69,500 - $129,500

Converting existing garage to living space

Detached ADU

$149,000 - $324,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,116 - $5,116

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Etiwanda

How much does it cost to build an ADU in Etiwanda?▼
The average cost to build an ADU in Etiwanda ranges from $149,000 to $324,000, or approximately $199 to $374 per square foot. Garage conversions typically cost $69,500 to $129,500.
How long does it take to get an ADU permit in Etiwanda?▼
The ADU permit process in Etiwanda 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 Etiwanda?▼
In Etiwanda, 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 Etiwanda?▼
Etiwanda 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 Etiwanda?▼
No parking is required for ADUs in Etiwanda 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.

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