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ADU Builders & Contractors in Castiac, CA

Castiac, CA homeowners looking to build an ADU have 1 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 Castiac starts here.

📊 ADU Quick Facts for Castiac

Avg. Cost/sqft

$197-$372

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 1 ADU Contractors in Castiac

🏗️
#1P & M PAINTING AND HANDYMAN SERVICES INC

Castiac, CA

P & M Painting And Handyman Services Inc — licensed ADU contractor in Castiac, CA. Detached ADU construction. 21+ years experience.

View Profile📞 (818) 903 3428

💰 How Much Does an ADU Cost in Castiac?

Garage Conversion

$68,500 - $128,500

Converting existing garage to living space

Detached ADU

$147,000 - $322,000

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 Castiac contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Castiac

How much does it cost to build an ADU in Castiac?▼
The average cost to build an ADU in Castiac ranges from $147,000 to $322,000, or approximately $197 to $372 per square foot. Garage conversions typically cost $68,500 to $128,500.
How long does it take to get an ADU permit in Castiac?▼
The ADU permit process in Castiac 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 Castiac?▼
In Castiac, 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 Castiac?▼
Castiac 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 Castiac?▼
No parking is required for ADUs in Castiac 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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