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Luxury ADU Design and Construction in the Bay Area

Contemporary house design featuring a large reflective window with a sleek facade.

Years of Experience

Team Members

Satisfied Customer

Winning Awards

Our Mission

Transforming Spaces with Modern Luxury and Expert Craftsmanship

At 9ADU, we design and build unique living spaces that enhance property values and create rental income opportunities. Our attention to detail and customer satisfaction have resulted in numerous successful projects across the Bay Area.

With a commitment to excellence, 9ADU has empowered homeowners to maximize their property’s potential through expertly crafted ADUs and home additions. Our modern designs and high-quality materials have consistently improved both livability and value for clients throughout the Bay Area.

Elegant minimalist architecture of a modern home in Hungary, surrounded by nature.

Our Journey

A Legacy of Quality in ADU Construction

Founded with a vision to redefine accessory dwelling units, 9ADU has steadily grown into a trusted name in the Bay Area. Our experienced team combines passion for design, quality craftsmanship, and unmatched customer service, ensuring that every project reflects our dedication to excellence and innovation.

Elegant entrance of a modern luxury home illuminated at night with stylish architecture.