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ADU Builders & Contractors in Murrieta, CA

With 341 verified ADU contractors serving Murrieta, 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 Murrieta

Avg. Cost/sqft

$207-$382

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 341 ADU Contractors in Murrieta

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#1W C L A - BUILDING SERVICES

Murrieta, CA

W C L A - Building Services — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 12+ years experience.

View Profile📞 (951) 377 3560
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#2NICHOLSON DAVID CONSTRUCTION

Murrieta, CA

Nicholson David Construction — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (951) 443 9821
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#3SIMS WILLIAM

Murrieta, CA

Sims William — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (951) 216 4220
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#4J AND J BUILDERS

Murrieta, CA

J And J Builders — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 24+ years experience.

View Profile📞 (951) 265 2544
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#5AMMIRATA CONSTRUCTION & INTERIORS INC

Murrieta, CA

Ammirata Construction & Interiors Inc — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 15+ years experience.

View Profile📞 (951) 816 1557
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#6A & C WINDOW AND DOOR SPECIALIST INC

Murrieta, CA

A & C Window And Door Specialist Inc — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (951) 252 6077
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#7BUSY BEE ELECTRICAL ENTERPRISES

Murrieta, CA

Busy Bee Electrical Enterprises — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 23+ years experience.

View Profile📞 (951) 674 9559
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#8VALLEY WIDE SERVICES INC

Murrieta, CA

Valley Wide Services Inc — licensed ADU contractor in Murrieta, CA. Detached ADU construction.

View Profile📞 (951) 526 7450
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#9R S M TILE

Murrieta, CA

R S M Tile — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (951) 553 0716
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#10JASON LEE

Murrieta, CA

Jason Lee — licensed ADU contractor in Murrieta, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (714) 673 1993
View All 341 Contractors →

💰 How Much Does an ADU Cost in Murrieta?

Garage Conversion

$73,500 - $133,500

Converting existing garage to living space

Detached ADU

$157,000 - $332,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,117 - $5,117

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Murrieta

How much does it cost to build an ADU in Murrieta?▼
The average cost to build an ADU in Murrieta ranges from $157,000 to $332,000, or approximately $207 to $382 per square foot. Garage conversions typically cost $73,500 to $133,500.
How long does it take to get an ADU permit in Murrieta?▼
The ADU permit process in Murrieta 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 Murrieta?▼
In Murrieta, 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 Murrieta?▼
Murrieta 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 Murrieta?▼
No parking is required for ADUs in Murrieta 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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