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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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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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.
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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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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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BB Builders Pro specializes in ADU construction, garage conversions, home additions, and detached backyard cottages. Services include custom design, permitting, zoning compliance, and renovations—ideal for rental income or family housing.
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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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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.
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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 moreLake Stevens, Washington, is one of the fastest-growing cities in Snohomish County, with a population that has surged significantly over the past decade. This rapid residential growth has made Accessory Dwelling Units (ADUs) an increasingly popular solution for homeowners looking to add housing capacity, generate rental income, or accommodate multigenerational families. Finding experienced ADU contractors in Lake Stevens, WA is essential to navigating the city's specific permitting requirements and building codes while maximizing your property's potential.
Before breaking ground, homeowners in Lake Stevens must understand the local zoning and permitting landscape. ADUs in Lake Stevens are governed by the City of Lake Stevens Development Services and must comply with Washington State building codes as well as local zoning ordinances. Key regulations typically include:
A knowledgeable ADU contractor in Lake Stevens will be familiar with these local requirements and can help you obtain the necessary building permits, design approvals, and inspections through the city's permitting office efficiently.
Experienced ADU contractors serving Lake Stevens offer a variety of unit types to suit different lot sizes, budgets, and homeowner goals. Common ADU types include:
Hiring a local ADU contractor with experience in Lake Stevens provides significant advantages. Local contractors understand the nuances of building near the lake, including potential stormwater management requirements and soil conditions specific to the Snohomish County region. They also maintain established relationships with the City of Lake Stevens permitting office, which can help streamline approvals and avoid costly delays.
Whether you're looking to create a rental income property, house aging parents, or increase your home's overall value, an ADU is a smart investment in Lake Stevens's thriving real estate market. Contact a qualified ADU contractor in Lake Stevens, WA today to discuss your project, review zoning eligibility, and begin the design and permitting process.