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ADU Builders & Contractors in Blue Jay, CA

Blue Jay, CA homeowners looking to build an ADU have 39 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 Blue Jay starts here.

📊 ADU Quick Facts for Blue Jay

Avg. Cost/sqft

$196-$371

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 39 ADU Contractors in Blue Jay

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#1TRINITY CONSTRUCTION

Blue Jay, CA

Trinity Construction — licensed ADU contractor in Blue Jay, CA. Detached ADU construction. 24+ years experience.

View Profile📞 (909) 337 4301
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#2NARAGHI CONSTRUCTION

Blue Jay, CA

Naraghi Construction — licensed ADU contractor in Blue Jay, CA. Detached ADU construction. 34+ years experience.

View Profile📞 (909) 522 2539
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#3SOCAL PRIME BUILDERS

Blue Jay, CA

Socal Prime Builders — licensed ADU contractor in Blue Jay, CA. Detached ADU construction.

View Profile📞 (909) 553 2288
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#4PATRICK BRENNAN CONSTRUCTION

Blue Jay, CA

Patrick Brennan Construction — licensed ADU contractor in Blue Jay, CA. Detached ADU construction. 40+ years experience.

View Profile📞 (909) 337 9460
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#5CASTILLO MARCELO V

Blue Jay, CA

Castillo Marcelo V — licensed ADU contractor in Blue Jay, CA. Detached ADU construction. 24+ years experience.

View Profile📞 (909) 234 1282
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#6GEISSLER CONSTRUCTION

Blue Jay, CA

Geissler Construction — licensed ADU contractor in Blue Jay, CA. Detached ADU construction. 34+ years experience.

View Profile📞 (909) 337 9607
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#7PATTISON TED S

Blue Jay, CA

Pattison Ted S — licensed ADU contractor in Blue Jay, CA. Detached ADU construction. 48+ years experience.

View Profile📞 (909) 336 2801
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#8PATTISON TODD & ASSOCIATES

Blue Jay, CA

Pattison Todd & Associates — licensed ADU contractor in Blue Jay, CA. Detached ADU construction. 24+ years experience.

View Profile📞 (415) 231 4468
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#9JRC CONSTRUCTION INC

Blue Jay, CA

Jrc Construction Inc — licensed ADU contractor in Blue Jay, CA. Detached ADU construction.

View Profile📞 (909) 337 1325
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#10M E S CO

Blue Jay, CA

M E S CO — licensed ADU contractor in Blue Jay, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (760) 956 2222
View All 39 Contractors →

💰 How Much Does an ADU Cost in Blue Jay?

Garage Conversion

$68,000 - $128,000

Converting existing garage to living space

Detached ADU

$146,000 - $321,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,108 - $5,108

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Blue Jay

How much does it cost to build an ADU in Blue Jay?▼
The average cost to build an ADU in Blue Jay ranges from $146,000 to $321,000, or approximately $196 to $371 per square foot. Garage conversions typically cost $68,000 to $128,000.
How long does it take to get an ADU permit in Blue Jay?▼
The ADU permit process in Blue Jay 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 Blue Jay?▼
In Blue Jay, 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 Blue Jay?▼
Blue Jay 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 Blue Jay?▼
No parking is required for ADUs in Blue Jay 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

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