Cornerstone Builders LLC is a Sequim-based ADU builder serving Washington's North Olympic Peninsula for 40+ years. This certified design-build firm manages all phases—design, permitting, and construction—offering transparent, process-driven ADU solutions.
read more
NW Finishing is a Seattle-area ADU contractor offering full-service accessory dwelling unit design and construction. Serving Bellevue, Kirkland, Redmond, Renton, and more, they handle permits, planning, and builds for detached, cottage, and prefab ADUs.
read more
Seattle's 2019 ADU law changes made it easier to build accessory dwelling units on single-family lots. DADUs can't exceed 50% of the main home's size. No parking required. New detached ADUs start around $350,000.
read more
Mallard Brothers Construction builds ADUs & Tiny Homes in Olympia, WA. They offer attached, detached, garage conversions & ADA-accessible units, managing design, permits & construction for property owners seeking rental income or extra living space.
read more
Puget Sound ADU Builders is a leader in ADU construction in western Washington state, excelling in design, construction, finishing, and permitting ADUs, DADUs, backyard cabins, garage conversions, duplexes, town homes, and multi-unit projects.
read more
New Image Construction Management is a Washington State general contractor and building company based in Seattle, WA. With a primary focus of new home construction and renovation of residential and commercial properties.
read more
HiLine Homes is an experienced ADU builder in Idaho with nearly 30 years in custom home construction. They offer attached and detached ADU designs for rental income, multigenerational living, or home offices, with financing options available.
read more
Drew Thatcher Construction builds ADUs in Lakewood, WA, including detached units, attached ADUs, and garage conversions. Founded by a Navy nuclear engineer, they offer design-build services with local Pierce County expertise.
read more
Harjo Construction builds AADUs & DADUs in Seattle with 300+ projects since 2010. Costs range $275K–$650K, max 1,000 sq ft, 4–6 month build time. Seattle removed owner-occupancy rules, boosting ADU rental potential.
read more
True Built Home builds custom ADUs in Washington & Oregon, offering 14 floor plans from 495–1,199 sq ft, priced from $119,900. Plans include granny flats, in-law suites & backyard cottages with transparent pricing and customizable designs.
read more
Seattle ADU & DADU contractor Emerald City Construction & Renovation builds accessory dwelling units across Seattle, Bellevue & Eastside. Projects cost $350K–$500K+, take 8–14 months, and support rental income, multigenerational living & more.
read more
Avio Homes is a Seattle-based ADU contractor specializing in detached ADUs, backyard cottages, and in-law suites. Serving Seattle, Tacoma, and Olympia, they handle design, permitting, and construction with local zoning expertise.
read more
Backyard ADU is a full-service ADU contractor managing every stage of accessory dwelling unit builds, including feasibility, permits, site surveys, foundations, construction, utility connections, and condo legal services.
read moreBremerton, Washington, home to the Puget Sound Naval Shipyard, is one of the fastest-growing cities on the Kitsap Peninsula. With a steady influx of military personnel, civilian workers, and families seeking affordable housing near Seattle via the Bremerton-Seattle ferry, the demand for Accessory Dwelling Units (ADUs) has surged significantly. Experienced ADU contractors in Bremerton understand this unique housing dynamic and are well-positioned to help homeowners maximize their property's potential.
Before breaking ground, homeowners and ADU contractors in Bremerton, WA must navigate the city's specific zoning and permitting requirements. Bremerton falls under the jurisdiction of the City of Bremerton Development Services, and ADU projects must comply with local municipal codes. Key regulations include:
Skilled ADU builders in Bremerton offer a variety of unit types to suit different property layouts and homeowner goals. Given Bremerton's mix of older craftsman homes, mid-century properties, and newer developments, contractors often work with:
Working with a local ADU contractor in Bremerton, Washington offers distinct advantages. Local professionals are familiar with the city's permitting process, have established relationships with Bremerton's Development Services department, and understand the region's specific climate considerations — including the wet Pacific Northwest weather that demands proper moisture management and insulation in all new construction.
Additionally, a knowledgeable Bremerton ADU contractor can help homeowners take advantage of Washington State's ADU-friendly legislation, including laws that have streamlined the permitting process and reduced barriers to ADU construction statewide. Whether you're looking to generate rental income, house a family member, or increase your property value, hiring an experienced ADU contractor in Bremerton, WA is the smartest first step toward a successful project.