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.
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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.
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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.
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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.
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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.
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Volcano Builders is a licensed, family-owned construction company serving Seattle, Bellevue & Monroe, WA. Specializing in kitchen remodels, bathroom renovations, home additions, deck builds, and ADU construction since 2021.
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Microhouse is a Seattle-based ADU builder specializing in custom detached ADUs (DADUs). They guide homeowners through zoning, design, and construction. Seattle permitted 551 DADUs in 2022, with a 40% increase in 2023. Microhouse offers site assessments and tailored DADU solutions.
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Evola Builds LLC, led by Michael and Amber Evola, offers residential renovation and construction services including bathroom remodels, ADU work, garage conversions, and structural modifications, collaborating closely with architects and homeowners.
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Hammer & Hand is a Portland & Seattle general contractor with 30+ years of experience in new homes, remodels, ADUs & commercial builds. Employee-owned, they offer expert craftsmanship, custom woodwork & trusted subcontractor networks.
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Northwest ADU builds custom detached ADUs, garage conversions & basement ADUs across Western Washington. Serving King, Pierce & Snohomish Counties with full-service ADU construction, build-ready plans & permit management.
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We specialize in building high-quality, custom Accessory Dwelling Units (ADUs) that provide both functionality and style for homeowners in Port Orchard, WA, and the surrounding areas. Whether you’re looking to add a rental property, create a cozy space for family, or simply expand your living area, an ADU is a versatile and valuable investment.
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J Hanby LLC offers ADU and basement conversion services in the Eastside area. Specializing in detached ADUs, garage conversions, granny flats, and basement renovations, they help homeowners maximize property value and ROI.
read moreShoreline, Washington is one of the Puget Sound region's most progressive cities when it comes to housing density and accessory dwelling units. Located just north of Seattle along the I-5 corridor, Shoreline has actively embraced ADU development as part of its broader strategy to increase housing availability near its two future light rail stations — Shoreline South/148th and Shoreline North/185th — both part of Sound Transit's Lynnwood Link Extension. This transit-oriented growth mindset makes working with experienced ADU contractors in Shoreline, WA more important than ever for homeowners looking to add value and rental income to their properties.
Before breaking ground, homeowners and ADU builders in Shoreline must navigate the city's specific zoning and permitting requirements. Shoreline allows both attached ADUs (AADUs) and detached ADUs (DADUs) in most single-family residential zones. Key regulations include:
Permits are issued through the City of Shoreline's Development Services department, and experienced local ADU contractors will be familiar with the city's online permitting portal and inspection processes, helping to avoid costly delays.
Hiring a local ADU contractor in Shoreline, Washington offers significant advantages over working with a general contractor unfamiliar with the area. Local professionals understand the city's specific soil conditions, stormwater management requirements, and the nuances of building near protected critical areas — which are present in parts of Shoreline due to its proximity to Puget Sound and various wetlands. A knowledgeable contractor will also be up to date on any recent amendments to Shoreline's Municipal Code that affect ADU construction.
A full ADU construction project in Shoreline typically involves site evaluation, architectural design, permit application, foundation work, framing, electrical, plumbing, insulation, and finishing. Costs can vary widely based on unit size and complexity, but homeowners should generally budget between $150,000 and $300,000 for a detached ADU in the greater Seattle metro area. The investment often pays off through rental income, especially given Shoreline's strong rental demand driven by proximity to Seattle and future light rail access.