ADU Builders & Contractors in Boulder Creek, CA

Boulder Creek, CA is home to 54 ADU contractors ready to help. From initial permits to final inspection, these local professionals know Boulder Creek's building codes and can guide your project from concept to completion.

📊 ADU Quick Facts for Boulder Creek

Avg. Cost/sqft

$196-$371

Permit Timeline

60-120 weeks

Max Size

1200 sqft

Setbacks

4ft sides

Top 54 ADU Contractors in Boulder Creek

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Boulder Creek, CA

Foster Kevin Construction — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction. 16+ years experience.

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Boulder Creek, CA

S C Bean — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction. 11+ years experience.

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Boulder Creek, CA

Boden Construction — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction. 17+ years experience.

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Boulder Creek, CA

Woodworking CO The — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction. 35+ years experience.

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Boulder Creek, CA

Greene & Company Inc — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction. 15+ years experience.

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Boulder Creek, CA

Stone Jeff Construction — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction.

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Boulder Creek, CA

Shiner Construction — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction. 25+ years experience.

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Boulder Creek, CA

Moyer Jeff Construction — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction. 18+ years experience.

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Boulder Creek, CA

Coastline Builders — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction.

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Boulder Creek, CA

Clark Const — licensed ADU contractor in Boulder Creek, CA. Detached ADU construction.

💰 How Much Does an ADU Cost in Boulder Creek?

Garage Conversion

$68,000 - $128,000

Converting existing garage to living space

Detached ADU

$146,000 - $321,000

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 Boulder Creek contractors to compare pricing.

❓ Frequently Asked Questions About ADUs in Boulder Creek

How much does it cost to build an ADU in Boulder Creek?
The average cost to build an ADU in Boulder Creek ranges from $146,000 to $321,000, or approximately $196 to $371 per square foot. Garage conversions typically cost $68,000 to $128,000.
How long does it take to get an ADU permit in Boulder Creek?
The ADU permit process in Boulder Creek 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 Boulder Creek?
In Boulder Creek, 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 Boulder Creek?
Boulder Creek 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 Boulder Creek?
No parking is required for ADUs in Boulder Creek 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.

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