North West Builders & Renovations

Northwest Builders & Renovation is a design-build remodeling and ADU construction company serving homeowners in the Seattle area and surrounding communities. The company provides residential construction services ranging from whole-home renovations and room additions to attached and detached ADUs (DADUs), garage conversions, and custom home construction. It describes its approach as a coordinated design-build process covering planning, design coordination, permitting, construction management, and final finishes.

An accessory dwelling unit (ADU) — also known as a granny flat, in-law suite, backyard cottage, casita, or secondary dwelling unit — is an independent living space located on the same property as a primary residence.

ADU Services

1. Detached ADU: Northwest Builders & Renovation constructs standalone backyard ADUs designed for rental income, multigenerational living, guests, or private workspaces.
2. Attached ADU: The company builds ADUs integrated into or connected to the primary residence, including configurations within existing portions of the home.
3. Garage Conversion ADU: Existing garages can be converted into residential living space, with work potentially involving insulation, windows, plumbing, electrical, HVAC, kitchens, bathrooms, and other residential upgrades.
4. Above-Garage ADU: The company also builds second-story living units above garages, allowing homeowners to create additional living space while preserving yard area.
5. Basement ADU: Basement areas can be developed into independent living units with kitchens, bathrooms, bedrooms, storage, and separate access where appropriate.
6. DADU Construction: The company specifically provides detached accessory dwelling unit (DADU) construction in Seattle and surrounding communities.

What Northwest Builders & Renovation Offers Beyond Construction

Northwest Builders & Renovation follows a design-build approach, coordinating the different stages of an ADU or remodeling project through one construction team. Its process can include property and feasibility review, layout development, architectural coordination, structural engineering, permitting, estimating, construction scheduling, material procurement, trade coordination, and final inspections.

For ADU projects, the company considers factors such as zoning, property conditions, utilities, drainage, trees, access, privacy, energy requirements, and the relationship between the ADU and the primary residence before finalizing the design.

The company’s ADU construction services include foundation work, framing, roofing, plumbing, electrical, HVAC, insulation, drywall, kitchens, bathrooms, cabinetry, flooring, exterior finishes, and final project completion. It also provides 3D renderings and architectural plans as part of its ADU development process.

Beyond ADUs, Northwest Builders & Renovation provides:

• Whole-home renovations
• Kitchen remodeling
• Bathroom remodeling
• Room additions and expansions
• Custom home building
• Basement remodeling
• Exterior improvements
• Residential general contracting

Serving Homeowners Across Seattle and Surrounding Communities

Northwest Builders & Renovation identifies Seattle and surrounding communities as its primary service region. Its website states that the company is headquartered in Tukwila and serves homeowners throughout the Seattle area.

The website also contains dedicated ADU and remodeling pages for individual communities, including Tukwila and Renton, confirming that the company’s coverage extends beyond Seattle itself.