Cruvers Contracting LLC builds ADUs in Snohomish, WA, tackling rural challenges like septic systems, slopes, and wooded lots. Serving areas including Lake Stevens, Monroe, and Everett with phased planning and durable, site-specific construction.read more
Giant Builders Seattle is a Kent, WA general contractor with 20+ years of experience offering ADU construction, garage conversions, kitchen & bathroom remodeling, room additions, roofing, deck building, and more.
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DIGS is a trusted ADU builder serving King & Snohomish County, WA. They offer custom ADU/DADU design, permitting, construction, and site development, helping homeowners add rental income, property value, and flexible living space.
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Olympic View Building is an ADU contractor offering detached ADU construction, garage conversions, in-law suites, granny flats, and JADU services. They help homeowners add value and living space while navigating zoning laws and building codes.
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Interbay Construction is a Washington State ADU contractor building guest houses, in-law suites, detached ADUs & backyard cottages. Quality materials, clear communication & reliable timelines for every accessory dwelling unit project.
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Seattle Remodeling LLC specializes in ADU construction in Seattle, offering mother-in-law suites, backyard cottages, garage conversions, and granny flats. They help homeowners add value, rental income, and flexible living space.
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New Day Construction is a licensed ADU builder in Bellevue, WA, with 21+ years of experience and 250+ projects. They build detached, attached, garage, basement, and custom ADUs, managing permits and design from start to finish.
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Raincap Construction, a Seattle-based family-owned contractor, specializes in ADU and DADU construction. They build backyard cottages, in-law suites, and garage conversions, helping homeowners add living space, rental income, and property value.read more
Alfa Framing offers residential construction services including structural framing, siding installation, roofing, and ADU/DADU construction. Serving new builds and additions, they bring decades of experience and a solution-oriented approach.
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Explore pre-designed ADU floor plans from Modern ADU Plans — studio, 1-bed, 2-bed, garage conversions & more. Save time, reduce costs & maximize property value with ready-to-build accessory dwelling unit designs.
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The DADU Guy is a Tacoma-based detached ADU builder serving Pierce County, WA. Specializing in DADUs, garage conversions, and basement conversions, they offer 5 floor plans, guaranteed pricing, and full project management to maximize property valu... read more
Deane Home Services builds ADUs in South King County, WA, including garage conversions, basement remodels, and detached backyard cottages. Licensed, bonded & insured. Serving Kent, Renton, Federal Way & more.
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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... read more
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.
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.