MORE ROOM ON YOUR PROPERTY
ADU Construction
Custom accessory dwelling units designed and built to maximize your property’s potential, value, and livability.
OVERVIEW
Custom ADU Construction Across Marin & Sonoma Counties
Whether you are building an independent guest suite, a rental unit for extra income, or a cozy space for family, we manage your ADU project from start to finish. Backed by 35+ years of local building experience, we navigate local regulations, architectural design, and quality construction seamlessly across Sonoma, San Rafael, Novato, Sausalito, Petaluma, and Santa Rosa.
- Detached ADUs, attached additions, and garage conversions
- Complete design, site planning, and local permit handling
- Full kitchen, bathroom, and living layout integration
- Utility connections, foundation, and structural framing
- Energy-efficient insulation, windows, and finishes
- Seamless architectural matching with your main property
Where we work
Bathroom Remodeling for property owners in Novato, San Rafael, Mill Valley, Santa Rosa, Petaluma, Sonoma and Rohnert Park.
Related services
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Free estimates · Military discounts · Licensed and insured
Brownstein Construction Inc.
Residential and commercial construction across Marin and Sonoma Counties since 1990. Licensed and insured. Locally and family owned.
- clark@brownsteinconstruction.com
- Novato, CA 94949
Service Areas
- Novato, CA
- Mill Valley, CA
- Petaluma, CA
- Rohnert Park, CA
- San Rafael, CA
- Santa Rosa, CA
- Sonoma, CA