Detached ADU Construction in Seattle
ADU Builders Seattle, operating as Maksymov Brownstone LLC, is a detached accessory dwelling unit builder serving homeowners throughout Seattle and King County. The company focuses on ground-up DADU construction, offering a full-cycle service that covers everything from early planning through final delivery. With over 17 years of experience in residential construction, the team brings practical local knowledge to each project.
As a licensed and bonded ADU contractor, ADU Builders Seattle handles zoning reviews, permit applications, and SDCI approvals on behalf of their clients. Their familiarity with Seattle's building codes and lot conditions allows them to manage the permitting process without unnecessary delays. Every detached ADU project is approached with attention to code compliance and site-specific planning.
A detached accessory dwelling unit can serve a range of purposes — a backyard cottage for guests, a separate home office, a granny flat for family members, or a rental-ready unit generating consistent income. ADU Builders Seattle designs and builds each unit to suit the specific goals and lot conditions of the homeowner.
DADU Services Offered
The company provides a range of detached ADU building services tailored to Seattle properties:
- Modern Backyard Cottages — Standalone cottage-style units designed for Seattle lots, built for comfort and long-term use.
- Two-Story Detached Units — Custom floor plans that make use of vertical space without expanding the building footprint.
- Rental-Ready Backyard Homes — Fully equipped units designed from the start to generate rental income.
- Eco-Friendly DADU Designs — Energy-efficient builds with sustainable systems that meet Seattle's green building standards.
- Detached Home Office Suites — Purpose-built backyard office spaces, insulated and fully separate from the main home.
- Garage-to-DADU Conversions — Full conversion of existing garages into code-compliant livable spaces, with permits managed by the team.
- Fully Custom Backyard Living — Bespoke DADU homes designed around the homeowner's vision and long-term property goals.
Each service is adapted to the specific conditions of Seattle lots, including compact footprints and local setback requirements. As an experienced garage conversion contractor and backyard cottage builder, the team works with a range of property types across the city.
The Construction Process
ADU Builders Seattle follows a structured process designed to keep projects organized and on schedule:
- Consultation and Site Feasibility — The team visits the property to assess layout, access, and utility connections, then outlines expected costs and project viability.
- Custom Architectural Design — Plans and 3D visuals are developed based on the specific lot and the homeowner's requirements.
- Permitting and SDCI Management — As the homeowner's Seattle DADU contractor, the team handles all permit submissions and city approvals.
- Ground-Up Construction — The accessory dwelling unit builders manage every stage of the build, keeping the site organized and minimizing disruption.
- Final Delivery — After inspections and approvals, the completed unit is ready for immediate use, whether for personal or rental purposes.
ADU Builders Seattle is a family-owned company that specializes in detached ADU construction across King County. Their approach centers on clear communication, realistic cost estimates, and builds that align with both the property's potential and the homeowner's long-term goals.