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
Armada Design & Build Inc., Bellevue, WA, offers full-service residential design-build since 2011. Specializing in remodels, home additions, and custom builds across Puget Sound, they deliver turnkey solutions with in-house design and quality craftsmanship.
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
Levite Construction Co is a Seattle-based family-owned general contractor offering kitchen remodeling, bathroom remodeling, ADU construction, garage conversions, new builds, interior design, and more across the Greater Seattle area.
read more
LYD Construction is a Seattle-area ADU builder & remodeling contractor with 25 years of experience. Services include kitchen, bathroom, basement renovations, deck building & ADU construction. Financing up to $200,000 available. Based in Bellevue, WA.
read more
Seattle Backyard Homes builds expert ADUs, DADUs, garage conversions & backyard cottages in Seattle and Bellevue. Full-service ADU contractors handling design, permits, zoning & construction with quality craftsmanship and transparent pricing.
read more
Greater Seattle Remodeling builds code-compliant ADUs across the Seattle metro, including detached ADUs, garage conversions, and basement apartments. They match homeowners with vetted contractors for permits, design, and construction.
read more
Heartwood Builders is a Seattle ADU contractor specializing in backyard cottages, basement ADUs, and mother-in-law suites. They handle permitting, use sustainable materials, and help homeowners add rental income or family housing.
read more
ADU Builders Seattle (Maksymov Brownstone LLC) specializes in detached ADU construction across Seattle & King County. Licensed & bonded, they handle zoning, permits, and SDCI approvals. Services include backyard cottages, two-story units, garage conversions & rental-ready DADUs.
read more
Carriage Houses NW is a Pacific Northwest ADU builder specializing in infill housing. They develop ADUs, duplexes, and townhomes, partner with homeowners, and offer fee-to-build services, leveraging WA State HB 1110 and HB 1337 legislation.
read more
Exceptional Home Builders is a Seattle ADU contractor with 20+ years of experience. They offer full-service ADU construction, design-build, permitting, interior design, and renovations for backyard cottages, garage conversions, and basement units.
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 more
SkyDADU is a DADU builder and equity partner serving King, Snohomish, and Pierce counties in Washington State. They offer fixed-price packages, up to 100% funding, and handle permitting, construction, and condominiumization for detached accessory dwelling units.
read more
Lindal Homes offers custom ADU and DADU kit home solutions across the US and Canada. Flexible floor plans, the Lindal Elements collection, and system-built construction make adding a backyard cottage or guest suite efficient and cost-effective.
read more
Love Construction builds ADU & DADU units in Seattle & Puget Sound to Passive House standards. Attached ADUs cost $85K–$280K; DADUs $175K–$550K. Includes permitting, energy modeling & a 5-year warranty.
read moreEverett, Washington, the seat of Snohomish County and home to major employers like Boeing and Naval Station Everett, has seen significant housing demand growth in recent years. As the city continues to expand, ADU contractors in Everett, WA are playing a crucial role in helping homeowners maximize their property value and address the region's housing shortage. Whether you're near the waterfront, in the Bayside neighborhood, or close to the Everett Station transit hub, adding an Accessory Dwelling Unit can be a smart investment in this competitive Pacific Northwest market.
Before hiring an ADU contractor in Everett, it's essential to understand the local zoning and building codes. Everett follows Washington State's updated ADU-friendly legislation, and the city has its own specific requirements that experienced contractors must navigate carefully. Key regulations include:
A qualified Everett ADU contractor will handle every phase of your project, from initial design and permit applications to final inspections. Given Everett's rainy Pacific Northwest climate, experienced local contractors understand the importance of proper waterproofing, insulation, and moisture management — critical factors for any new construction or garage conversion in this region. They will also be familiar with Everett's utility connection requirements, including hooking up to the city's water and sewer systems.
Homeowners in Everett work with ADU contractors to build several types of units, depending on their lot size and budget:
Choosing a contractor with direct experience in Everett, Washington ADU projects ensures smoother permitting, faster approvals, and construction that meets local code standards. Local contractors understand Snohomish County's soil conditions, Everett's specific inspection processes, and the nuances of building in a city that balances historic neighborhoods with rapid modern development. Investing in a professional, licensed ADU contractor in Everett is the most reliable path to a successful, code-compliant accessory dwelling unit.