Haas Development & Construction offers ADU & DADU construction in Greater Seattle. They handle planning, permits, design, and builds for attached & detached units, including prefab DADU plans, helping homeowners add rental income or family housing.
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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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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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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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Seattle's 2019 ADU law changes made it easier to build accessory dwelling units on single-family lots. DADUs can't exceed 50% of the main home's size. No parking required. New detached ADUs start around $350,000.
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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.
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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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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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Seattle ADU & DADU contractor Emerald City Construction & Renovation builds accessory dwelling units across Seattle, Bellevue & Eastside. Projects cost $350K–$500K+, take 8–14 months, and support rental income, multigenerational living & more.
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Northwest ADU is a full-service ADU contractor in Western Washington specializing in detached ADUs, garage conversions, and basement conversions. Serving Pierce, King, and Snohomish Counties, projects range from $180K–$350K+, taking 6–10 months.
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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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Marksymov Brownstone LLC is a licensed Seattle ADU contractor offering basement, garage & attic conversions. They handle design, permits & construction, ensuring code compliance across Seattle, Bellevue & Kirkland.
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Twin Brothers Group is a licensed framing contractor in Washington State specializing in ADU, DADU, garage conversions, and home additions across King and Snohomish County, serving Seattle-area GCs and owner-builders.
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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 moreNormandy Park, Washington, is a small, upscale residential city nestled along the Puget Sound shoreline in King County, known for its lush tree canopy, waterfront views, and strict commitment to preserving its quiet, suburban character. For homeowners looking to add an Accessory Dwelling Unit (ADU) in Normandy Park, working with experienced local ADU contractors is essential. The city's unique zoning regulations, environmental considerations, and neighborhood aesthetics all play a significant role in shaping how ADU projects are planned and executed.
Normandy Park follows King County and Washington State guidelines while also enforcing its own municipal code. Homeowners and ADU contractors must navigate several key requirements before breaking ground. Washington State's HB 1337, passed in 2023, expanded ADU rights statewide, allowing up to two ADUs per single-family lot, which applies to Normandy Park residents as well. However, local setback rules, lot coverage limits, and tree retention ordinances can add layers of complexity to any ADU project.
Key regulatory considerations for ADU contractors working in Normandy Park include:
Skilled ADU contractors in Normandy Park offer a range of construction options tailored to the city's residential landscape. The most common types include:
Selecting a qualified ADU contractor in Normandy Park, WA means finding a professional who understands both state-level ADU legislation and the city's specific permitting process. Look for contractors with experience pulling permits through the City of Normandy Park's Community Development Department, familiarity with King County environmental regulations, and a portfolio of completed ADU projects in similar coastal residential communities. A knowledgeable contractor will help maximize your property's potential while keeping your project fully compliant and on budget.