Hammer & Hand is a Portland & Seattle general contractor with 30+ years of experience in new homes, remodels, ADUs & commercial builds. Employee-owned, they offer expert craftsmanship, custom woodwork & trusted subcontractor networ... read more
Carriage Houses NW is a Pacific Northwest ADU builder specializing in infill housing. They develop ADUs, duplexes, and townhomes, partner with homeowners, and offer fee-to-build services, leveraging WA State HB 1110 and HB 1337 legislation.
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Seattle Tiny Homes, based in Buckley, WA since 2005, builds tiny houses, park models, and modular ADUs under 400 sq ft. Washington state-certified, they offer financing options and helped establish the Washington Tiny House Association.
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Seattle Modern Buildings ADU Builder is a Seattle-based design-build firm specializing in detached ADUs, duplexes, and modern homes. With deep knowledge of Seattle permitting, zoning, and construction best practices, we help homeowners unlock thei... read more
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 fa... read more
Homez Remodel is a Seattle ADU builder specializing in DADUs, backyard cottages, garage conversions & basement ADUs. With 10+ years experience, they handle permits, design & construction across Seattle, Bellevue, Kirkland & more.
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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 assess... 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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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.
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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
Sockeye Homes designs & builds custom ADUs and DADUs, offering full-service support from permits to construction. Fixed-cost packages range from $218K–$335K+, suiting retirees, families & rental income seekers.
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Backyard ADU is a full-service ADU contractor managing every stage of accessory dwelling unit builds, including feasibility, permits, site surveys, foundations, construction, utility connections, and condo legal services.
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.