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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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.
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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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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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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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Era Builders is a Seattle-based ADU contractor offering detached ADU construction, design, permitting, remodeling, and commercial renovations. They handle full ADU projects compliant with Seattle zoning rules, using sustainable practices.
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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.read more
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 ... read more
ADUs offer self-contained living with kitchen, bath & bedroom for rental or family use. Room additions expand existing home space. Above & Beyond Construction serves Seattle & Puget Sound homeowners with both project types.
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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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Lakeside ADU & Home Planning, based in Lake Stevens, WA, is a full-service ADU builder serving the Puget Sound Region. They specialize in backyard cottages, mother-in-law suites, garage conversions, and new builds, managing design, permitting,... 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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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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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... read more
Tacoma DADU Builders is a premier detached ADU builder serving Tacoma and Puget Sound. With 40+ years of experience, they offer turnkey ADU construction—design, permitting, and build—for investors, homeowners, and first-time buyers.
read moreBellevue, Washington is one of the fastest-growing cities on the Eastside of the Puget Sound region, with a booming real estate market and some of the highest property values in the state. As housing demand continues to surge, ADU contractors in Bellevue, WA are playing a critical role in helping homeowners maximize their property's potential. Whether you're looking to build a detached ADU in your backyard or convert an existing space into a legal accessory dwelling unit, working with an experienced Bellevue ADU contractor is essential to navigating the city's specific requirements.
The City of Bellevue has its own set of land use codes that govern the construction of accessory dwelling units. Homeowners and contractors must comply with the Bellevue City Code (BCC), particularly Title 20, which outlines zoning and development standards. Key regulations that ADU builders in Bellevue must be aware of include:
One of the most important steps in any Bellevue ADU project is obtaining the proper permits through the City of Bellevue's Development Services Department. The permitting process typically involves submitting architectural plans, site plans, and engineering documents for review. Professional ADU contractors in Bellevue are familiar with the city's ePlans electronic submission system and can help streamline the approval process. Permit timelines in Bellevue can vary, so hiring a contractor with local experience is a significant advantage.
Choosing a local ADU contractor in Bellevue, Washington means working with professionals who understand the nuances of building in this specific market. From managing steep lot grades common in neighborhoods like Somerset and Factoria, to coordinating with Bellevue Utilities for water and sewer connections, local expertise matters. A qualified contractor will also help you:
With Bellevue's strong rental demand and high property values, building an ADU is one of the smartest investments a homeowner can make. Partnering with a knowledgeable ADU contractor in Bellevue, WA ensures your project is completed on time, on budget, and fully compliant with all local codes and regulations.