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ADU Builders & Contractors in Manhattan, CA

Manhattan, 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 Manhattan starts here.

📊 ADU Quick Facts for Manhattan

Avg. Cost/sqft

$207-$382

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 1 ADU Contractors in Manhattan

🏗️
#1ARAMAX CONSTRUCTION SERVICES

Manhattan, CA

Aramax Construction Services — licensed ADU contractor in Manhattan, CA. Detached ADU construction. 5+ years experience.

View Profile📞 (818) 643 9889

💰 How Much Does an ADU Cost in Manhattan?

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

$1,097 - $5,097

Plan check, permits, utility connections

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

❓ Frequently Asked Questions About ADUs in Manhattan

How much does it cost to build an ADU in Manhattan?▼
The average cost to build an ADU in Manhattan 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 Manhattan?▼
The ADU permit process in Manhattan 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 Manhattan?▼
In Manhattan, 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 Manhattan?▼
Manhattan 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 Manhattan?▼
No parking is required for ADUs in Manhattan 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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