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ADU Builders & Contractors in Descanso, CA

Descanso, CA homeowners looking to build an ADU have 9 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 Descanso starts here.

📊 ADU Quick Facts for Descanso

Avg. Cost/sqft

$198-$373

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 9 ADU Contractors in Descanso

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#1KIRKWOOD WALTER J

Descanso, CA

Kirkwood Walter J — licensed ADU contractor in Descanso, CA. Detached ADU construction. 33+ years experience.

View Profile📞 (619) 993 4523
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#2HANDLEY CONSTRUCTION INC

Descanso, CA

Handley Construction Inc — licensed ADU contractor in Descanso, CA. Detached ADU construction.

View Profile📞 (619) 733 4965
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#3JMJ CONSTRUCTION

Descanso, CA

Jmj Construction — licensed ADU contractor in Descanso, CA. Detached ADU construction. 8+ years experience.

View Profile📞 (619) 821 7519
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#4PRECISION DEVELOPMENT INC

Descanso, CA

Precision Development Inc — licensed ADU contractor in Descanso, CA. Detached ADU construction. 41+ years experience.

View Profile📞 (619) 990 3902
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#5P L S FRAMING CONTRACTORS

Descanso, CA

P L S Framing Contractors — licensed ADU contractor in Descanso, CA. Detached ADU construction. 20+ years experience.

View Profile📞 (760) 238 3304
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#6MOMINEE RODNEY INC

Descanso, CA

Mominee Rodney Inc — licensed ADU contractor in Descanso, CA. Detached ADU construction. 14+ years experience.

View Profile📞 (619) 417 7645
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#7FENTON CONSTRUCTION INC

Descanso, CA

Fenton Construction Inc — licensed ADU contractor in Descanso, CA. Detached ADU construction. 30+ years experience.

View Profile📞 (619) 445 4162
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#8SHOWCASE CONSTRUCTION DAVID A LYONS

Descanso, CA

Showcase Construction David A Lyons — licensed ADU contractor in Descanso, CA. Detached ADU construction. 41+ years experience.

View Profile📞 (619) 445 2000
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#9SALZANO CONSTRUCTION

Descanso, CA

Salzano Construction — licensed ADU contractor in Descanso, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (619) 368 2460

💰 How Much Does an ADU Cost in Descanso?

Garage Conversion

$69,000 - $129,000

Converting existing garage to living space

Detached ADU

$148,000 - $323,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,101 - $5,101

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Descanso

How much does it cost to build an ADU in Descanso?▼
The average cost to build an ADU in Descanso ranges from $148,000 to $323,000, or approximately $198 to $373 per square foot. Garage conversions typically cost $69,000 to $129,000.
How long does it take to get an ADU permit in Descanso?▼
The ADU permit process in Descanso 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 Descanso?▼
In Descanso, 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 Descanso?▼
Descanso 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 Descanso?▼
No parking is required for ADUs in Descanso 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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