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Location and Projects

Address
1475 NORTH ST, Santa Rosa, CA, 95404
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North Bay Adu & Additions Construction

Based in Santa Rosa, North Bay Adu & Additions specializes in constructing accessory dwelling units (ADUs) and home additions throughout Sonoma County. The company focuses on helping homeowners increase living space and property value by guiding clients through every stage of the ADU or addition process—from initial design to finished construction. North Bay Adu & Additions offers both attached and detached ADU construction, including in-law units, guest houses, and backyard cottages, as well as a range of home expansion services, such as room additions and conversions. Projects are tailored to meet local zoning and permitting requirements in Santa Rosa and neighboring communities. The firm’s portfolio includes examples of ADU floor plans, custom layouts, and solutions designed for a variety of lot sizes and budgets.

North Bay Adu & Additions Contact Information

Phone: (707) 543-1716 Edit
Address: 1475 NORTH ST, Santa Rosa, CA 95404 Edit

North Bay Adu & Additions Santa Rosa

Quality

99
85th percentile
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
North Bay Adu & Additions has a BuildZoom score of 99, which places them above 85% of 336,931 contractors in California.

Activity

2 projects
2025
Our building permit records indicate that North Bay Adu & Additions has worked on at least 2.0 projects over the past year.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Pricing

1 project
$20k-$50k
1 project
$100k-$250k
Value Not Public: 0 projects
Pro tip: For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.

Building Permits by North Bay Adu & Additions

Sort by: Notable Notable | Date Date | Job Value Job Value
Residential new
2025-08-05
Demolition of 208 sf garage and rebuild 320 sf garage along the same footprint. expansion to interior of property allowed by planning. increased length of building allowed by planning to meet current zoning code parking requirement
Valuation:
$40,000
Permit #:
B25-4453
Status:
waiting for applicant
Fee:
$848
Permit Type:
N/A
Building Type:
N/A
Residential addition-alteration
2025-12-21
Garage to jadu conversion - proulx/pearson residence - 520 jenifer ct - 448 sq ft using existing footprint - 1 bedroom 1bath full kitchen/living room
Valuation:
$115,000
Permit #:
B25-7737
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A

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