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ADU Builders & Contractors in Watsonville, CA

Watsonville, CA homeowners looking to build an ADU have 173 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 Watsonville starts here.

📊 ADU Quick Facts for Watsonville

Avg. Cost/sqft

$197-$372

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 173 ADU Contractors in Watsonville

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#1LUCINO'S CONSTRUCTION INC

Watsonville, CA

Lucino'S Construction Inc — licensed ADU contractor in Watsonville, CA. Detached ADU construction. 22+ years experience.

View Profile📞 (831) 761 9450
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#2HARGIS HOME IMPROVEMENTS INC

Watsonville, CA

Hargis Home Improvements Inc — licensed ADU contractor in Watsonville, CA. Detached ADU construction. 38+ years experience.

View Profile📞 (831) 722 6104
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#3STOFFEL MATTHEW D CONSTRUCTION

Watsonville, CA

Stoffel Matthew D Construction — licensed ADU contractor in Watsonville, CA. Detached ADU construction. 29+ years experience.

View Profile📞 (831) 212 5277
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#4B C M CONSTRUCTION AND REMODELING

Watsonville, CA

B C M Construction And Remodeling — licensed ADU contractor in Watsonville, CA. Detached ADU construction. 16+ years experience.

View Profile📞 (831) 247 4453
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#5MANNING DEVELOPMENT INC

Watsonville, CA

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

View Profile📞 (831) 689 0400
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#6APEX DEVELOPMENT

Watsonville, CA

Apex Development — licensed ADU contractor in Watsonville, CA. Detached ADU construction.

View Profile📞 (831) 247 4261
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#7KRULICKI CONSTRUCTION INC

Watsonville, CA

Krulicki Construction Inc — licensed ADU contractor in Watsonville, CA. Detached ADU construction. 43+ years experience.

View Profile📞 (831) 685 8351
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#8SELDEN & SON

Watsonville, CA

Selden & Son — licensed ADU contractor in Watsonville, CA. Detached ADU construction. 37+ years experience.

View Profile📞 (831) 722 9949
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#9GRANITE ROCK COMPANY

Watsonville, CA

Granite Rock Company — licensed ADU contractor in Watsonville, CA. Detached ADU construction. 96+ years experience.

View Profile📞 (831) 768 2000
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#10DOAN DAVID CONSTRUCTION & SONS

Watsonville, CA

Doan David Construction & Sons — licensed ADU contractor in Watsonville, CA. Detached ADU construction. 34+ years experience.

View Profile📞 (831) 566 5095
View All 173 Contractors →

💰 How Much Does an ADU Cost in Watsonville?

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 Watsonville contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Watsonville

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