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ADU Builders & Contractors in Porter Ranch, CA

Porter Ranch, CA homeowners looking to build an ADU have 65 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 Porter Ranch starts here.

📊 ADU Quick Facts for Porter Ranch

Avg. Cost/sqft

$190-$365

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 65 ADU Contractors in Porter Ranch

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#1BLUE EARTH RESTORATION INC

Porter Ranch, CA

Blue Earth Restoration Inc — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction.

View Profile📞 (818) 445 6943
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#2UNIVERSAL CONSTRUCTION INC

Porter Ranch, CA

Universal Construction Inc — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 25+ years experience.

View Profile📞 (818) 652 6665
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#3WESTSIDE BUILDERS CORP

Porter Ranch, CA

Westside Builders Corp — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 12+ years experience.

View Profile📞 (818) 518 6388
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#43 TEN BUILDERS INC

Porter Ranch, CA

3 Ten Builders Inc — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 6+ years experience.

View Profile📞 (805) 298 2254
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#5XCC CONSTRUCTION INC

Porter Ranch, CA

Xcc Construction Inc — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 18+ years experience.

View Profile📞 (323) 359 1111
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#6HILLS CONTRACTOR AND PAINTING INC

Porter Ranch, CA

Hills Contractor And Painting Inc — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 5+ years experience.

View Profile📞 (818) 515 5864
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#7GENCO SERV INC

Porter Ranch, CA

Genco Serv Inc — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 28+ years experience.

View Profile📞 (818) 919 8260
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#8POWER AND COMMUNICATION SERVICES INC

Porter Ranch, CA

Power And Communication Services Inc — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (818) 812 9044
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#9GEISLER LEE M

Porter Ranch, CA

Geisler Lee M — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 7+ years experience.

View Profile📞 (805) 340 7855
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#10LOPEZ ERASMO TERCERO

Porter Ranch, CA

Lopez Erasmo Tercero — licensed ADU contractor in Porter Ranch, CA. Detached ADU construction. 14+ years experience.

View Profile📞 (626) 679 6672
View All 65 Contractors →

💰 How Much Does an ADU Cost in Porter Ranch?

Garage Conversion

$65,000 - $125,000

Converting existing garage to living space

Detached ADU

$140,000 - $315,000

New standalone unit (600-1,200 sqft)

Permit & Fees

$1,111 - $5,111

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Porter Ranch

How much does it cost to build an ADU in Porter Ranch?▼
The average cost to build an ADU in Porter Ranch ranges from $140,000 to $315,000, or approximately $190 to $365 per square foot. Garage conversions typically cost $65,000 to $125,000.
How long does it take to get an ADU permit in Porter Ranch?▼
The ADU permit process in Porter Ranch 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 Porter Ranch?▼
In Porter Ranch, 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 Porter Ranch?▼
Porter Ranch 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 Porter Ranch?▼
No parking is required for ADUs in Porter Ranch 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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