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ADU Builders & Contractors in Bloomington, CA

Bloomington, CA homeowners looking to build an ADU have 38 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 Bloomington starts here.

📊 ADU Quick Facts for Bloomington

Avg. Cost/sqft

$196-$371

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 38 ADU Contractors in Bloomington

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#1J C R CONSTRUCTION

Bloomington, CA

J C R Construction — licensed ADU contractor in Bloomington, CA. Detached ADU construction. 14+ years experience.

View Profile📞 (909) 743 3324
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#2GETTINGS C

Bloomington, CA

Gettings C — licensed ADU contractor in Bloomington, CA. Detached ADU construction. 33+ years experience.

View Profile📞 (909) 714 1729
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#3WILLIAMS SERVICES

Bloomington, CA

Williams Services — licensed ADU contractor in Bloomington, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (909) 877 2654
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#4LUCIO MARTIN ESPARZA

Bloomington, CA

Lucio Martin Esparza — licensed ADU contractor in Bloomington, CA. Detached ADU construction. 8+ years experience.

View Profile📞 (909) 254 3062
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#5GTZ BUILDERS INC

Bloomington, CA

Gtz Builders Inc — licensed ADU contractor in Bloomington, CA. Detached ADU construction.

View Profile📞 (909) 243 9597
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#6QUALITY LIGHT AND ELECTRICAL

Bloomington, CA

Quality Light And Electrical — licensed ADU contractor in Bloomington, CA. Detached ADU construction. 32+ years experience.

View Profile📞 (909) 421 8668
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#7LOVE BUILDERS INC

Bloomington, CA

Love Builders Inc — licensed ADU contractor in Bloomington, CA. Detached ADU construction. 9+ years experience.

View Profile📞 (951) 712 1609
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#8D & J CONSTRUCTION WORK

Bloomington, CA

D & J Construction Work — licensed ADU contractor in Bloomington, CA. Detached ADU construction.

View Profile📞 (909) 994 1611
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#9G P GENERAL CONTRACTOR INC

Bloomington, CA

G P General Contractor Inc — licensed ADU contractor in Bloomington, CA. Detached ADU construction. 23+ years experience.

View Profile📞 (951) 907 1049
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#10ALTAVISTA WALL SYSTEMS INC

Bloomington, CA

Altavista Wall Systems Inc — licensed ADU contractor in Bloomington, CA. Detached ADU construction. 11+ years experience.

View Profile📞 (909) 471 9620
View All 38 Contractors →

💰 How Much Does an ADU Cost in Bloomington?

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 Bloomington contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Bloomington

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