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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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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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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Emerald ADU Builders Seattle specializes in ADU design, permitting, and construction. They build detached ADUs, attached ADUs, and garage conversions, serving Seattle homeowners with quality craftsmanship and transparent pricing.
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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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Tenhulzen Construction offers ADU and DADU construction services in Washington State, providing pre-approved and custom plans. Options suit various budgets and timelines, with benefits including added property value and flexible living spaces.
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Huskies Construction in Renton specializes in home additions, ADUs, and DADUs. Services include garage conversions, granny flats, in-law suites, backyard cottages, and room additions, helping homeowners expand living space or generate rental income.
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An ADU (accessory dwelling unit) is a secondary dwelling on a single-family lot. Types include basement apartments, garage conversions & detached cottages. Costs vary by size, design, permits & materials. Professional ADU contractors ensure smooth project execution.
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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.
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Seattle ADUs offer rental income & flexible living. Coates Design Architects guides homeowners through detached, attached, garage & basement conversions. Costs range $200K–$350K+, with 7–11 month timelines. Sustainable design & permit-ready plans included.
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Skagit Design Homes offers flexible ADU plans for detached units, backyard cottages & granny flats. Maximum ADU sizes vary by local zoning laws. Check municipal regulations early to ensure your accessory dwelling unit project stays on track.
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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.
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Brutsky Builds is a licensed ADU contractor in Bellevue offering full-service accessory dwelling unit construction. Services start from $210,000, covering design, permitting, and build completion in ~6 months.
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.