What is the maximum ADU size allowed in San Fernando?

Detached ADUs in San Fernando can be up to 1200 square feet.

ADU Builders & Contractors in San Fernando, CA

Q: How much does it cost to build an ADU in San Fernando?

The average cost ranges from $143,000 to $318,000, or $193-368 per square foot.

Q: How long does it take to get an ADU permit in San Fernando?

The permit process typically takes 60 to 120 weeks in San Fernando.

San Fernando, CA is home to 80 ADU contractors ready to help. From initial permits to final inspection, these local professionals know San Fernando's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for San Fernando

Avg. Cost/sqft

$193-$368

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 80 ADU Contractors in San Fernando

🏗️

#1A&A SUPREME BUILDERS INC

San Fernando, CA

A&A Supreme Builders Inc — licensed ADU contractor in San Fernando, CA. Detached ADU construction.

View Profile 📞 (818) 270 0388

🏗️

#2NAS CONSTRUCTION INC

San Fernando, CA

Nas Construction Inc — licensed ADU contractor in San Fernando, CA. Detached ADU construction. 11+ years experience.

View Profile 📞 (818) 599 7907

🏗️

#3BERNARDS BUILDERS INC

San Fernando, CA

Bernards Builders Inc — licensed ADU contractor in San Fernando, CA. Detached ADU construction. 13+ years experience.

View Profile 📞 (818) 898 1521

🏗️

#4GEMINI PROPERTY SOLUTIONS

San Fernando, CA

Gemini Property Solutions — licensed ADU contractor in San Fernando, CA. Detached ADU construction. 21+ years experience.

View Profile 📞 (818) 767 4000

🏗️

#5STONEWALL CONSTRUCTION INC

San Fernando, CA

Stonewall Construction Inc — licensed ADU contractor in San Fernando, CA. Detached ADU construction. 9+ years experience.

View Profile 📞 (310) 261 0993

🏗️

#6GAMIZ CUSTOM IMPROVEMENTS INC

San Fernando, CA

Gamiz Custom Improvements Inc — licensed ADU contractor in San Fernando, CA. Detached ADU construction.

View Profile 📞 (818) 568 9719

🏗️

#7DIAZ DAVE

San Fernando, CA

Diaz Dave — licensed ADU contractor in San Fernando, CA. Detached ADU construction. 20+ years experience.

View Profile 📞 (818) 355 0218

🏗️

#8BETHCO ENTERPRISES INC

San Fernando, CA

Bethco Enterprises Inc — licensed ADU contractor in San Fernando, CA. Detached ADU construction. 9+ years experience.

View Profile 📞 (818) 834 2700

🏗️

#9ELEGANT DEVELOPMENT

San Fernando, CA

Elegant Development — licensed ADU contractor in San Fernando, CA. Detached ADU construction. 15+ years experience.

View Profile 📞 (818) 458 4059

🏗️

#10ADVANCED CONSTRUCTION

San Fernando, CA

Advanced Construction — licensed ADU contractor in San Fernando, CA. Detached ADU construction. 16+ years experience.

View Profile 📞 (818) 430 5487

View All 80 Contractors →

💰 How Much Does an ADU Cost in San Fernando?

Garage Conversion

$66,500 - $126,500

Converting existing garage to living space

Detached ADU

$143,000 - $318,000

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 San Fernando contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in San Fernando

How much does it cost to build an ADU in San Fernando?▼

The average cost to build an ADU in San Fernando ranges from $143,000 to $318,000, or approximately $193 to $368 per square foot. Garage conversions typically cost $66,500 to $126,500.

How long does it take to get an ADU permit in San Fernando?▼

The ADU permit process in San Fernando 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 San Fernando?▼

In San Fernando, 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 San Fernando?▼

San Fernando 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 San Fernando?▼

No parking is required for ADUs in San Fernando 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)

Ready to Build Your ADU in San Fernando?

Get free quotes from top-rated local contractors

Find Contractors Now

← View all contractors in California