What is the maximum ADU size allowed in Garden Grove?

Detached ADUs in Garden Grove can be up to 1200 square feet.

ADU Builders & Contractors in Garden Grove, CA

Q: How much does it cost to build an ADU in Garden Grove?

The average cost ranges from $151,000 to $326,000, or $201-376 per square foot.

Q: How long does it take to get an ADU permit in Garden Grove?

The permit process typically takes 60 to 120 weeks in Garden Grove.

Garden Grove, CA homeowners looking to build an ADU have 364 licensed contractors to choose from, ready to help. Whether you're planning a garage conversion, detached ADU, or junior ADU, finding the right contractor in Garden Grove starts here.

📊 ADU Quick Facts for Garden Grove

Avg. Cost/sqft

$201-$376

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 364 ADU Contractors in Garden Grove

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#1A PLUS HOME IMPROVEMENT SPECIALISTS INC

Garden Grove, CA

A Plus Home Improvement Specialists Inc — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 22+ years experience.

View Profile 📞 (714) 901 0500

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#2BIG MIKE ELECTRIC

Garden Grove, CA

Big Mike Electric — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 45+ years experience.

View Profile 📞 (714) 537 6664

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#3EX2 CONSTRUCTION

Garden Grove, CA

Ex2 Construction — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 16+ years experience.

View Profile 📞 (951) 834 7189

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#4BASS AND SONS PLUMBING COMPANY

Garden Grove, CA

Bass And Sons Plumbing Company — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 54+ years experience.

View Profile 📞 (714) 534 5403

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#5GADEG INC

Garden Grove, CA

Gadeg Inc — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 6+ years experience.

View Profile 📞 (714) 865 5862

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#6KREATIVE DESIGN CONSTRUCTION

Garden Grove, CA

Kreative Design Construction — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 18+ years experience.

View Profile 📞 (323) 707 6700

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#7SMITH CONSTRUCTION

Garden Grove, CA

Smith Construction — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 47+ years experience.

View Profile 📞 (714) 743 3039

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#8VNV BUILDERS GROUP INC

Garden Grove, CA

Vnv Builders Group Inc — licensed ADU contractor in Garden Grove, CA. Detached ADU construction.

View Profile 📞 (714) 251 4995

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#9C P CONSTRUCTION

Garden Grove, CA

C P Construction — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 17+ years experience.

View Profile 📞 (714) 227 7090

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#10QN GENERAL CONSTRUCTION

Garden Grove, CA

QN General Construction — licensed ADU contractor in Garden Grove, CA. Detached ADU construction. 31+ years experience.

View Profile 📞 (714) 869 0477

View All 364 Contractors →

💰 How Much Does an ADU Cost in Garden Grove?

Garage Conversion

$70,500 - $130,500

Converting existing garage to living space

Detached ADU

$151,000 - $326,000

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 Garden Grove contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Garden Grove

How much does it cost to build an ADU in Garden Grove?▼

The average cost to build an ADU in Garden Grove ranges from $151,000 to $326,000, or approximately $201 to $376 per square foot. Garage conversions typically cost $70,500 to $130,500.

How long does it take to get an ADU permit in Garden Grove?▼

The ADU permit process in Garden Grove 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 Garden Grove?▼

In Garden Grove, 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 Garden Grove?▼

Garden Grove 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 Garden Grove?▼

No parking is required for ADUs in Garden Grove 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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