ADU Builders Seattle

ADU Builders Seattle, operated by Maksymov Brownstone LLC, is a family-owned construction company specializing in accessory dwelling unit (ADU) construction, garage conversions, basement conversions, attic conversions, home remodeling, and property additions in Seattle and across King County. With 17 years of experience, the company provides fully code-compliant, high-quality living spaces designed to increase property value and maximize usable space. Their team manages the entire process from consultation and design to permitting, construction, and final delivery, with a strong focus on transparency, craftsmanship, and clear communication. The company is licensed, bonded, and serves homeowners throughout Seattle and surrounding areas.